ROLLOUT 0 · python-tap/tappy
python-tap__tappy-112
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System instructions 4,822 characters
You are a principal Python software engineer resolving a repository issue in `/workspace`. Your sole objective is to produce a minimal, root-cause source patch that passes every hidden fail-to-pass and pass-to-pass regression test on the first grading run. ## Critical Environment & Grader Rules 1. **Air-Gapped Sandbox & Available CLI Tools**: No network access. Never run `pip`, `uv`, `conda`, or `git fetch`. Note: `rg` (`ripgrep`) is NOT installed in the container — always use `grep -rn --include="*.py"` for fast exact searches so you never waste a tool call on `command not found`. 2. **Protected Grading Paths**: Before running official verification, the grading harness **strips and reverts all changes** to `tests/`, `test/`, `testing/`, `test_*.py`, `*_test.py`, `conftest.py`, `pyproject.toml`, `setup.cfg`, `pytest.ini`, and `tox.ini`. Every part of your fix MUST reside in non-test production source files. 3. **Untracked File Trap (`git add -N .`)**: `submit_patch` stages ALL untracked files inside `/workspace`! Never leave reproduction or scratch files inside `/workspace` — run reproductions inline via `python3 - <<'PY'` or inside `/tmp/repro.py` in a single `run_command`. 4. **Stdout Truncation Rule**: `run_command` truncates stdout after the first 5,000 characters from the TOP. Always run pytest quietly with short tracebacks: `pytest path/to/test_file.py -k pattern -q --tb=short --no-header` If a test file is large, redirect output to `/tmp/pytest.log` and inspect `tail -n 80 /tmp/pytest.log` so failure tracebacks at the bottom are never cut off. 5. **Strict Pacing Discipline**: `get_status` and `submit_patch` are free and do NOT count toward `max_tool_calls`. Target **16-22 counted tool calls total**, and **begin your first `edit_file` change no later than tool call 15**. Reserve at least 4 calls for verification, `git status --short && git diff`, and submission. ## Execution Protocol ### Phase 1 — Pinpoint Code & Tests Immediately (1-2 tool calls) - The user message already contains `Workspace Layout` — do NOT waste a turn running `ls` on top-level directories. - Run a single compound `run_command` with `grep -rn --include="*.py"` to locate: (a) the exact symbols, error strings, or functions from the problem description, (b) **all parallel or sibling implementations** (for example sync + async variants, `Client` + `AsyncClient`, serializer + deserializer, multiple backends/dialects, base + subclass methods, `__init__.py` / `__all__` exports), and (c) the closest existing unit test files under `tests/`. ### Phase 2 — Deep Read & Spec Anchor (2-5 tool calls) - Use `read_file` with generous `start_line` and `end_line` windows (180-300 lines per call so you read whole modules in fewer calls) on the target function/class, callers, type annotations, and neighboring tests. - Before editing, verify every explicit and implicit requirement from the issue: exact parameter names, defaults, boundary/domain edge cases, exception types/messages, `None` vs empty collection vs falsy (`0`, `False`, `""`) semantics, mutability/copying, and return types. ### Phase 3 — Reproduce Bug in One Call (1 tool call) - Run ONE concise command (`python3 - <<'PY' ... PY` or targeted `pytest ... -q --tb=short --no-header`) via `run_command` to observe the exact pre-fix failure. Do NOT spend multiple tool calls writing separate reproduction scripts. ### Phase 4 — Surgical Implementation Across All Parallel Paths (1-4 tool calls) - Begin editing by tool call 15! Use `edit_file` with 4-6 lines of exact surrounding context copied from `read_file`. - Update ALL parallel codepaths (sync/async, multiple classes/dialects, type hints) consistently so partial fixes do not fail sibling tests. - **2-Strike Edit Rule**: If `edit_file` fails twice on the same block due to whitespace or escaping, do not retry `edit_file` a third time — apply an atomic Python transformation via `run_command` and immediately verify `python3 -m py_compile path/to/file.py`. ### Phase 5 — Edge-Case Verification, Diff Hygiene & Clean Exit (2-4 tool calls) - Run a single compound `run_command` testing both your reproduction + boundary edge cases (`None`, empty input, leading/trailing delimiters, subdomain/prefix boundaries, subclass/async parity) AND the relevant existing `pytest` module(s) with `-q --tb=short --no-header`. - Run `git status --short && git diff` via `run_command`. Confirm: - ZERO untracked (`??`) files in `/workspace` (`rm -f` any untracked workspace files immediately), - ZERO modifications to `tests/` or protected config files (`git checkout -- tests/` if touched), - Minimal, clean diff with valid imports and indentation. - Call `submit_patch` once verification passes, then respond with a brief 2-sentence plain-text summary and make NO further tool calls.
Task prompt 5,407 characters
You are evaluating a software engineering task for repository python-tap/tappy.
Problem Statement:
Additional newlines added in YAML blocks for multi-line strings
Hello!
I've observed that `_extract_yaml_block()` performs `"\n".join(raw_yaml)` without having stripped the newline character in each possible line, resulting in unwanted empty lines when parsing multi-line strings in YAML blocks.
I'll give an example. With this file:
```python
#!/usr/bin/python3
import tap.parser
tap_input = """TAP version 13
1..2
ok 1 A passing test
---
message: test
severity: fail
output: |+
this is a multiline
string but with tap
somehow blank lines
are added to it.
"""
parser = tap.parser.Parser()
for i, l in enumerate(parser.parse_text(tap_input)):
if i == 2:
print("{!r}".format(l.yaml_block["output"].splitlines()))
```
The output is:
```
['', 'this is a multiline', '', 'string but with tap', '', 'somehow blank lines', '', 'are added to it.']
```
Where as I expected:
```
['this is a multiline', 'string but with tap', 'somehow blank lines', 'are added to it.']
```
I will submit a PR shortly.
## Hints:
codecov-io: # [Codecov](https://codecov.io/gh/python-tap/tappy/pull/112?src=pr&el=h1) Report
> Merging [#112](https://codecov.io/gh/python-tap/tappy/pull/112?src=pr&el=desc) into [master](https://codecov.io/gh/python-tap/tappy/commit/015c21c1a98b88f23844a44e346604f2398b11d5&el=desc) will **not change** coverage.
> The diff coverage is `100.00%`.
[](https://codecov.io/gh/python-tap/tappy/pull/112?src=pr&el=tree)
```diff
@@ Coverage Diff @@
## master #112 +/- ##
=========================================
Coverage 100.00% 100.00%
=========================================
Files 12 12
Lines 599 600 +1
=========================================
+ Hits 599 600 +1
```
| [Impacted Files](https://codecov.io/gh/python-tap/tappy/pull/112?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [tap/parser.py](https://codecov.io/gh/python-tap/tappy/pull/112/diff?src=pr&el=tree#diff-dGFwL3BhcnNlci5weQ==) | `100.00% <100.00%> (ø)` | |
------
[Continue to review full report at Codecov](https://codecov.io/gh/python-tap/tappy/pull/112?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/python-tap/tappy/pull/112?src=pr&el=footer). Last update [015c21c...05c6b82](https://codecov.io/gh/python-tap/tappy/pull/112?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).
## Task Budget (Session terminates when any budget is exhausted)
- Time allowance: 7.5 minutes
- Tool calls allowance: 30 calls
- Max loop iterations: 40 turns
## Execution Environment Rules
- Single command timeout: 90 seconds (commands exceeding this fail without ending the session)
- Command output limit: 5000 characters
- File view limit: 150 lines per read_file call
- File character limit: 10000 characters per read_file call
- Environment is offline (no network/PyPI access). All repository and test dependencies are ALREADY pre-installed. Do NOT attempt to run pip install or download packages.
## Instructions:
0. All source code is under `/workspace`. Do NOT search outside `/workspace` (e.g. `/usr/`, `/wheels/`, system site-packages). If imports fail, the issue is in the source code under `/workspace`, not in missing system packages.
1. Analyze the problem statement and any provided hints carefully to identify all requested script paths, CLI subcommands, or Python modules.
2. Inspect existing codebase conventions and test files before making edits.
3. Verify your implementation using targeted tests or inline assertions before submitting.
4. Call submit_patch only after your implementation is complete and verified.
5. As your final action, you must return a text-only response reporting your completion to terminate the session.
## Workspace Layout
The repository is located at `/workspace`. Here is the directory tree (up to 3 levels):
```
./AUTHORS
./CODE_OF_CONDUCT.md
./LICENSE
./MANIFEST.in
./README.md
./appveyor.yml
./docs
./requirements-dev.txt
./setup.cfg
./setup.py
./tap
./tap/__init__.py
./tap/__main__.py
./tap/adapter.py
./tap/directive.py
./tap/formatter.py
./tap/i18n.py
./tap/line.py
./tap/loader.py
./tap/locale
./tap/locale/ar
./tap/locale/de
./tap/locale/es
./tap/locale/fr
./tap/locale/it
./tap/locale/ja
./tap/locale/nl
./tap/locale/pt
./tap/locale/ru
./tap/locale/tappy.pot
./tap/locale/zh
./tap/main.py
./tap/parser.py
./tap/rules.py
./tap/runner.py
./tap/tests
./tap/tests/__init__.py
./tap/tests/factory.py
./tap/tests/run.py
./tap/tests/test_adapter.py
./tap/tests/test_directive.py
./tap/tests/test_formatter.py
./tap/tests/test_line.py
./tap/tests/test_loader.py
./tap/tests/test_main.py
./tap/tests/test_parser.py
./tap/tests/test_result.py
./tap/tests/test_rules.py
./tap/tests/test_runner.py
./tap/tests/test_tracker.py
./tap/tests/testcase.py
./tap/tracker.py
./tox.ini
./transifex.py
```
Turn 1at 20 s304 tokens out3,856 prompt tokens
The user is reporting a bug in `tap.parser._extract_yaml_block()` where newlines are incorrectly added to multi-line strings in YAML blocks. The issue is that `"\n".join(raw_yaml)` is used without stripping the existing newline characters from each line in `raw_yaml`. I need to: 1. Locate `_extract_yaml_block` in `tap/parser.py`. 2. Reproduce the bug using the example provided in the problem statement. 3. Fix the bug by stripping the newlines from each line in `raw_yaml` before joining them. 4. Verify the fix. Let's start by reproducing the bug.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nimport tap.parser\n\ntap_input = \"\"\"TAP version 13\n1..2\nok 1 A passing test\n ---\n message: test\n severity: fail\n output: |+\n this is a multiline\n string but with tap\n somehow blank lines\n are added to it.\n\"\"\"\nparser = tap.parser.Parser()\n\nfor i, l in enumerate(parser.parse_text(tap_input)):\n if i == 2:\n print(\"{!r}\".format(l.yaml_block[\"output\"].splitlines()))\nPY\n"
}Result of run_command 167 characters
{
"status": "ok",
"stdout": "['', 'this is a multiline', '', 'string but with tap', '', 'somehow blank lines', '', 'are added to it.']\n",
"stderr": "",
"exit_code": 0
}Turn 2at 26 s130 tokens out4,232 prompt tokens
The reproduction script confirms the issue. The output is `['', 'this is a multiline', '', 'string but with tap', '', 'somehow blank lines', '', 'are added to it.']` but it should be `['this is a multiline', 'string but with tap', 'somehow blank lines', 'are added to it.']`. Now let's locate `_extract_yaml_block` in `tap/parser.py`.
TOOL CALL · run_command
{
"command": "grep -n \"def _extract_yaml_block\" tap/parser.py"
}Result of run_command 112 characters
{
"status": "ok",
"stdout": "177: def _extract_yaml_block(self, indent, fh):\n",
"stderr": "",
"exit_code": 0
}Turn 3at 29 s58 tokens out4,420 prompt tokens
Now I will read the `_extract_yaml_block` function in `tap/parser.py`.
TOOL CALL · read_file
{
"end_line": 200,
"filepath": "tap/parser.py",
"start_line": 177
}Result of read_file 1,077 characters
{
"status": "ok",
"filepath": "tap/parser.py",
"content": " def _extract_yaml_block(self, indent, fh):\n \"\"\"Extract a raw yaml block from a file handler\"\"\"\n raw_yaml = []\n indent_match = re.compile(r\"^{}\".format(indent))\n try:\n next(fh)\n while indent_match.match(fh.peek()):\n raw_yaml.append(next(fh).replace(indent, \"\", 1))\n # check for the end and stop adding yaml if encountered\n if self.yaml_block_end.match(fh.peek()):\n next(fh)\n break\n except StopIteration:\n pass\n return \"\\n\".join(raw_yaml)\n\n def _parse_version(self, match):\n version = int(match.group(\"version\"))\n if version < self.TAP_MINIMUM_DECLARED_VERSION:\n raise ValueError(\n _(\"It is an error to explicitly specify any version lower than 13.\")\n )\n return Version(version)",
"start_line": 177,
"end_line": 199,
"total_lines": 199,
"is_truncated": false
}Turn 4at 64 s548 tokens out4,804 prompt tokens
The code is:
```python
def _extract_yaml_block(self, indent, fh):
"""Extract a raw yaml block from a file handler"""
raw_yaml = []
indent_match = re.compile(r"^{}".format(indent))
try:
next(fh)
while indent_match.match(fh.peek()):
raw_yaml.append(next(fh).replace(indent, "", 1))
# check for the end and stop adding yaml if encountered
if self.yaml_block_end.match(fh.peek()):
next(fh)
break
except StopIteration:
pass
return "\n".join(raw_yaml)
```
The issue is that `next(fh)` returns a line that includes the trailing newline character.
When we do `raw_yaml.append(next(fh).replace(indent, "", 1))`, the line still has the trailing newline (e.g., `"\n"`).
Then `"\n".join(raw_yaml)` adds another newline between the lines.
If `next(fh)` returns `" this is a line\n"`, and `indent` is `" "`, then `raw_yaml` gets `"this is a line\n"`.
When joining with `"\n"`, it becomes `"this is a line\n\n"`.
Wait, if `next(fh)` returns `" this is a line\n"`, then `raw_yaml.append("this is a line\n")`.
If there are two lines:
`["line1\n", "line2\n"]`
`"\n".join(["line1\n", "line2\n"])` -> `"line1\n\nline2\n"`
This confirms the problem. We should strip the trailing newline from each line.
Actually, `line.rstrip('\n')` or `line.rstrip('\r\n')` would be appropriate.
Let's see if there are other places where this happens.
I'll check for other `_extract` methods or similar logic in `tap/parser.py`.
Looking at the provided `read_file` output, there aren't any other obvious similar methods in that immediate vicinity. I'll search for `_extract` in `tap/parser.py`.
TOOL CALL · run_command
{
"command": "grep \"_extract\" tap/parser.py"
}Result of run_command 168 characters
{
"status": "ok",
"stdout": " concat_yaml = self._extract_yaml_block(indent, fh)\n def _extract_yaml_block(self, indent, fh):\n",
"stderr": "",
"exit_code": 0
}Turn 5at 71 s119 tokens out5,424 prompt tokens
Only `_extract_yaml_block` seems to be doing this. Wait, let's check if `fh` is something like a file object or a list of lines. In `tap.parser.Parser.parse_text(text)`, `text` is split into lines and passed to something that probably uses `fh`. Let's look at `parse_text` in `tap/parser.py`.
TOOL CALL · run_command
{
"command": "grep -n \"def parse_text\" tap/parser.py"
}Result of run_command 96 characters
{
"status": "ok",
"stdout": "79: def parse_text(self, text):\n",
"stderr": "",
"exit_code": 0
}Turn 6at 73 s49 tokens out5,595 prompt tokens
Reading `parse_text` and how it uses `fh`.
TOOL CALL · read_file
{
"end_line": 120,
"filepath": "tap/parser.py",
"start_line": 79
}Result of read_file 1,871 characters
{
"status": "ok",
"filepath": "tap/parser.py",
"content": " def parse_text(self, text):\n \"\"\"Parse a string containing one or more lines of TAP output.\"\"\"\n return self.parse(StringIO(text))\n\n def parse(self, fh):\n \"\"\"Generate tap.line.Line objects, given a file-like object `fh`.\n\n `fh` may be any object that implements both the iterator and\n context management protocol (i.e. it can be used in both a\n \"with\" statement and a \"for...in\" statement.)\n\n Trailing whitespace and newline characters will be automatically\n stripped from the input lines.\n \"\"\"\n with fh:\n try:\n first_line = next(fh)\n except StopIteration:\n return\n first_parsed = self.parse_line(first_line.rstrip())\n fh_new = itertools.chain([first_line], fh)\n if first_parsed.category == \"version\" and first_parsed.version >= 13:\n if ENABLE_VERSION_13:\n fh_new = peekable(itertools.chain([first_line], fh))\n else: # pragma no cover\n print(\n \"\"\"\nWARNING: Optional imports not found, TAP 13 output will be\n ignored. To parse yaml, see requirements in docs:\n https://tappy.readthedocs.io/en/latest/consumers.html#tap-version-13\"\"\"\n )\n\n for line in fh_new:\n yield self.parse_line(line.rstrip(), fh_new)\n\n def parse_line(self, text, fh=None):\n \"\"\"Parse a line into whatever TAP category it belongs.\"\"\"\n match = self.ok.match(text)\n if match:\n return self._parse_result(True, match, fh)\n\n match = self.not_ok.match(text)",
"start_line": 79,
"end_line": 120,
"total_lines": 199,
"is_truncated": false
}Turn 7at 83 s186 tokens out6,174 prompt tokens
In `parse` method:
```python
for line in fh_new:
yield self.parse_line(line.rstrip(), fh_new)
```
And in `parse_line`:
```python
def parse_line(self, text, fh=None):
"""Parse a line into whatever TAP category it belongs."""
match = self.ok.match(text)
if match:
return self._parse_result(True, match, fh)
```
So `parse_line` is called with `line.rstrip()`.
`_parse_result` probably calls `_extract_yaml_block`.
Let's look at `_parse_result`.
TOOL CALL · run_command
{
"command": "grep -n \"def _parse_result\" tap/parser.py"
}Result of run_command 114 characters
{
"status": "ok",
"stdout": "152: def _parse_result(self, ok, match, fh=None):\n",
"stderr": "",
"exit_code": 0
}Turn 8at 85 s44 tokens out6,420 prompt tokens
Reading `_parse_result`.
TOOL CALL · read_file
{
"end_line": 176,
"filepath": "tap/parser.py",
"start_line": 152
}Result of read_file 1,153 characters
{
"status": "ok",
"filepath": "tap/parser.py",
"content": " def _parse_result(self, ok, match, fh=None):\n \"\"\"Parse a matching result line into a result instance.\"\"\"\n peek_match = None\n try:\n if fh is not None and ENABLE_VERSION_13 and isinstance(fh, peekable):\n peek_match = self.yaml_block_start.match(fh.peek())\n except StopIteration:\n pass\n if peek_match is None:\n return Result(\n ok,\n number=match.group(\"number\"),\n description=match.group(\"description\").strip(),\n directive=Directive(match.group(\"directive\")),\n )\n indent = peek_match.group(\"indent\")\n concat_yaml = self._extract_yaml_block(indent, fh)\n return Result(\n ok,\n number=match.group(\"number\"),\n description=match.group(\"description\").strip(),\n directive=Directive(match.group(\"directive\")),\n raw_yaml_block=concat_yaml,\n )\n",
"start_line": 152,
"end_line": 176,
"total_lines": 199,
"is_truncated": false
}Turn 9at 205 s1,973 tokens out6,798 prompt tokens
So `_extract_yaml_block` is called with `fh`.
`fh` in `parse` is `fh_new = peekable(itertools.chain([first_line], fh))`.
The items in `fh_new` are the original lines from `fh` (including newlines) because they were not stripped when put into the chain.
Inside `parse`, `yield self.parse_line(line.rstrip(), fh_new)` strips the line for `parse_line`, but `fh_new` still contains the original lines.
So in `_extract_yaml_block`:
```python
def _extract_yaml_block(self, indent, fh):
"""Extract a raw yaml block from a file handler"""
raw_yaml = []
indent_match = re.compile(r"^{}".format(indent))
try:
next(fh)
while indent_match.match(fh.peek()):
raw_yaml.append(next(fh).replace(indent, "", 1))
# check for the end and stop adding yaml if encountered
if self.yaml_block_end.match(fh.peek()):
next(fh)
break
except StopIteration:
pass
return "\n".join(raw_yaml)
```
`next(fh)` returns the line with the newline.
To fix this, we should strip the trailing newline from each line in `raw_yaml`.
Wait, `next(fh).rstrip('\n')` or `next(fh).rstrip('\r\n')`?
Actually, `rstrip('\n')` might be too aggressive if the line had trailing spaces that should be preserved in YAML.
However, YAML's `|+` (keep) and `|` (strip) blocks handle trailing whitespaces.
But the problem description says "unwanted empty lines", which suggests the `\n` from `next(fh)` combined with `"\n".join(raw_yaml)` is the issue.
If the line was `" text \n"`, `replace(indent, "", 1)` would make it `"text \n"`.
Then `"\n".join(["text \n"])` results in `"text \n"`.
If we have:
`" line 1 \n"`
`" line 2 \n"`
Result: `"line 1 \n\nline 2 \n"`
We want: `"line 1 \nline 2 "` (or similar, depending on how it's joined).
Wait, if we join with `"\n"`, and we want the resulting string to be what's parsed as YAML, then the lines in the YAML block should be separated by a single newline.
If we do `raw_yaml.append(next(fh).replace(indent, "", 1).rstrip('\n'))`, then for:
`" line 1 \n"`
`" line 2 \n"`
`raw_yaml` is `["line 1 ", "line 2 "]`.
`"\n".join(raw_yaml)` is `"line 1 \nline 2 "`.
This looks correct.
Wait, what if it's `\r\n`? `rstrip('\n')` will leave `\r`.
Maybe `rstrip('\r\n')` or better yet, `rstrip('\n').rstrip('\r')`.
Actually, in Python, when reading a file in text mode (which `StringIO` and most file opens do), `\r\n` is typically converted to `\n` (universal newlines).
Since `parse_text` uses `StringIO(text)`, and `text` is a Python string, newlines are likely `\n`.
Let's check if we should use `rstrip('\n')` or `rstrip()`.
The problem says "without having stripped the newline character in each possible line".
If we use `.rstrip()`, we strip all trailing whitespace, including spaces. This might be a problem for YAML multi-line strings where trailing whitespace is significant.
So we should only strip the trailing newline.
A common way is `.rstrip('\n')` if we know it's `\n`, or `.rstrip('\r\n')` if we want to handle both.
Wait, `'\r\n'.rstrip('\n')` gives `'\r'`.
`'\r\n'.rstrip('\r\n')` gives `''`.
Let's see how `parse` does it: `line.rstrip()`.
`parse` does `yield self.parse_line(line.rstrip(), fh_new)`.
But `line.rstrip()` strips ALL trailing whitespace.
In `_extract_yaml_block`, we are extracting the RAW YAML block to be parsed by a YAML parser later.
The YAML parser expects the YAML content.
If we use `.rstrip()`, we might break the YAML.
Let's double check the example.
```python
output: |+
this is a multiline
string but with tap
somehow blank lines
are added to it.
```
Here the lines are `" this is a multiline\n"`, etc.
Subtracting the indent `" "` (5 spaces) gives `"this is a multiline\n"`.
Then joining with `\n` gives `"this is a multiline\n\nstring but with tap\n\nsomehow..."`.
If we only strip the newline character:
`"this is a multiline"`
`"string but with tap"`
`"somehow blank lines"`
`"are added to it."`
Joined: `"this is a multiline\nstring but with tap\nsomehow blank lines\nare added to it."`
Parsed by YAML, `|+` will preserve trailing newlines of the block, but it doesn't add newlines between lines.
Wait, if the input line was `" this is a multiline \n"`, and we use `.rstrip('\n')`, we get `"this is a multiline "`. This is correct.
So the fix is to change:
`raw_yaml.append(next(fh).replace(indent, "", 1))`
to
`raw_yaml.append(next(fh).replace(indent, "", 1).rstrip('\n'))`
Wait, what about `\r\n`?
If we use `.rstrip('\r\n')` it will remove all trailing `\r` and `\n`. This might also remove trailing empty lines if we are not careful? No, `rstrip` removes characters from the end of the string.
`"line\n\n".rstrip('\n')` -> `"line"`
Wait, if the line ends with multiple newlines?
`next(fh)` should only return ONE line. So it will have at most one trailing newline (unless the line itself is just a newline).
If the line is `" \n"`, `replace(indent, "", 1)` might be `" \n"` or `"\n"`.
Then `.rstrip('\n')` becomes `" "` or `""`.
Then `"\n".join` will add the newline back.
Let's verify with the reproduction script.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nimport tap.parser\nfrom io import StringIO\n\ntap_input = \"\"\"TAP version 13\n1..2\nok 1 A passing test\n ---\n message: test\n severity: fail\n output: |+\n this is a multiline\n string but with tap\n somehow blank lines\n are added to it.\n\"\"\"\nparser = tap.parser.Parser()\n\n# For reproduction, let's manually call _extract_yaml_block\n# The indent is ' ' (3 spaces before '---') \n# No, the indent for YAML block is the indent of the '---' line.\n# In the example:\n# 'ok 1 A passing test\\n'\n# ' ---\\n'\n# ' message: test\\n'\n# ' severity: fail\\n'\n# ' output: |+\\n'\n# ' this is a multiline\\n'\n# ...\n# The '---' is at 3 spaces.\n# The content starts after '---' line.\n# The 'message' line is at 3 spaces.\n# The 'output' line is at 3 spaces.\n# The 'this is a multiline' line is at 5 spaces.\n\n# Let's just use the parser as intended.\nfor i, l in enumerate(parser.parse_text(tap_input)):\n if i == 2:\n print(\"{!r}\".format(l.yaml_block[\"output\"].splitlines()))\nPY\n"
}Result of run_command 167 characters
{
"status": "ok",
"stdout": "['', 'this is a multiline', '', 'string but with tap', '', 'somehow blank lines', '', 'are added to it.']\n",
"stderr": "",
"exit_code": 0
}Turn 10at 291 s1,396 tokens out8,841 prompt tokens
Wait, I noticed something in the output:
`['', 'this is a multiline', '', 'string but with tap', '', 'somehow blank lines', '', 'are added to it.']`
The first element is `''`. This means the first line in `raw_yaml` was `'\n'`.
Looking at the `tap_input`:
```python
tap_input = """TAP version 13
1..2
ok 1 A passing test
---
message: test
severity: fail
output: |+
this is a multiline
string but with tap
somehow blank lines
are added to it.
"""
```
Lines after `ok 1 A passing test`:
1. ` ---\n` (matched as yaml block start)
2. ` message: test\n` (indent match)
3. ` severity: fail\n` (indent match)
4. ` output: |+\n` (indent match)
5. ` this is a multiline\n` (indent match)
6. ` string but with tap\n` (indent match)
7. ` somehow blank lines\n` (indent match)
8. ` are added to it.\n` (indent match)
Wait, how does `_extract_yaml_block` work?
```python
def _extract_yaml_block(self, indent, fh):
"""Extract a raw yaml block from a file handler"""
raw_yaml = []
indent_match = re.compile(r"^{}".format(indent))
try:
next(fh) # This skips the '---' line
while indent_match.match(fh.peek()):
raw_yaml.append(next(fh).replace(indent, "", 1))
# check for the end and stop adding yaml if encountered
if self.yaml_block_end.match(fh.peek()):
next(fh)
break
except StopIteration:
pass
return "\n".join(raw_yaml)
```
If `indent` is `" "` (3 spaces).
1. `next(fh)` skips ` ---\n`.
2. `fh.peek()` is ` message: test\n`. `indent_match` matches.
- `next(fh)` returns ` message: test\n`.
- `replace(indent, "", 1)` returns `message: test\n`.
- `raw_yaml.append("message: test\n")`.
3. `fh.peek()` is ` severity: fail\n`. Matches.
- `raw_yaml.append("severity: fail\n")`.
4. `fh.peek()` is ` output: |+\n`. Matches.
- `raw_yaml.append("output: |+\n")`.
5. `fh.peek()` is ` this is a multiline\n`. Matches (since it starts with 3 spaces).
- `next(fh)` returns ` this is a multiline\n`.
- `replace(indent, "", 1)` returns ` this is a multiline\n`.
- `raw_yaml.append(" this is a multiline\n")`.
... and so on.
So `raw_yaml` becomes:
`["message: test\n", "severity: fail\n", "output: |+\n", " this is a multiline\n", " string but with tap\n", " somehow blank lines\n", " are added to it.\n"]`
Then `"\n".join(raw_yaml)` gives:
`"message: test\n\nseverity: fail\n\noutput: |+\n\n this is a multiline\n\n string but with tap\n\n somehow blank lines\n\n are added to it.\n"`
When this is parsed by YAML, the double newlines might be causing the issue.
Wait, the output of the reproduction script was:
`['', 'this is a multiline', '', 'string but with tap', '', 'somehow blank lines', '', 'are added to it.']`
This is the value of `l.yaml_block["output"]`.
The `output` field in YAML is:
```yaml
output: |+
this is a multiline
string but with tap
somehow blank lines
are added to it.
```
If the YAML parser sees:
```yaml
output: |+
this is a multiline
string but with tap
somehow blank lines
are added to it.
```
Then it will include those empty lines.
Which is exactly what's happening because `\n\n` is created.
So yes, we need to strip the trailing newline from each line before joining them with `\n`.
Let's check which newline to strip. `rstrip('\n')` is probably enough for `StringIO` and standard Unix files. To be safe, `rstrip('\n').rstrip('\r')` or `rstrip('\r\n')`?
Actually, if the line ends with `\r\n`, `rstrip('\n')` will leave `\r`.
If we use `rstrip('\r\n')`, it will remove both.
Actually, `rstrip('\n')` in universal newline mode (which is default) should be sufficient if the input is already normalized.
Wait, `tap/parser.py` uses `StringIO` in `parse_text`, and `StringIO` handles universal newlines if the input string has them.
Let's test `rstrip('\n')` in a small script first.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\ns = \"line1\\n\"\nprint(f\"{s!r}\")\nprint(f\"{s.rstrip('\\n')!r}\")\n\ns2 = \"line1\\r\\n\"\nprint(f\"{s2!r}\")\nprint(f\"{s2.rstrip('\\n')!r}\")\nprint(f\"{s2.rstrip('\\r\\n')!r}\")\nPY\n"
}Result of run_command 457 characters
{
"status": "error",
"error_type": "CommandError",
"error_message": " File \"<stdin>\", line 3\n print(f\"{s.rstrip('\\n')!r}\")\n ^\nSyntaxError: f-string expression part cannot include a backslash\n",
"details": {
"stdout": "",
"stderr": " File \"<stdin>\", line 3\n print(f\"{s.rstrip('\\n')!r}\")\n ^\nSyntaxError: f-string expression part cannot include a backslash\n",
"exit_code": 1
}
}Turn 11at 303 s152 tokens out10,388 prompt tokens
Ah, f-string restriction in some Python versions. Let's use `.format()`.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\ns = \"line1\\n\"\nprint(\"s: {!r}\".format(s))\nprint(\"rstrip(\\\\n): {!r}\".format(s.rstrip('\\n')))\n\ns2 = \"line1\\r\\n\"\nprint(\"s2: {!r}\".format(s2))\nprint(\"rstrip(\\\\n): {!r}\".format(s2.rstrip('\\n')))\nprint(\"rstrip(\\\\r\\\\n): {!r}\".format(s2.rstrip('\\r\\n')))\nPY\n"
}Result of run_command 166 characters
{
"status": "ok",
"stdout": "s: 'line1\\n'\nrstrip(\\n): 'line1'\ns2: 'line1\\r\\n'\nrstrip(\\n): 'line1\\r'\nrstrip(\\r\\n): 'line1'\n",
"stderr": "",
"exit_code": 0
}Turn 12at 332 s521 tokens out10,629 prompt tokens
So `.rstrip('\r\n')` is safer.
Wait, I should check if `rstrip('\r\n')` would remove too much.
If the line was `" text\r\n"`, it becomes `" text"`. Correct.
If the line was `" text\n\n"`, it becomes `" text"`.
But `next(fh)` only returns one line, so it should only have one trailing newline (unless it's a binary file or something weird, but here it's a text file).
Actually, `next(fh)` returns the line AND the newline character(s) at the end.
Standard file iteration in Python returns lines that end in `\n` or `\r\n`.
So `.rstrip('\r\n')` should be correct.
Wait, if a line is empty, `next(fh)` returns `"\n"`.
`"\n".rstrip('\r\n')` becomes `""`.
Then `"\n".join` will put it back as a single newline. Correct.
Let's apply the fix to `tap/parser.py`.
```python
<<<<
raw_yaml.append(next(fh).replace(indent, "", 1))
====
raw_yaml.append(next(fh).replace(indent, "", 1).rstrip('\r\n'))
>>>>
```
Wait, I noticed that `parse_line` is called with `line.rstrip()`.
`_extract_yaml_block` is called when `parse_line` detects a YAML block.
The `fh` used in `_extract_yaml_block` is the original file handle.
One more thing: `_extract_yaml_block` also has:
```python
if self.yaml_block_end.match(fh.peek()):
next(fh)
break
```
This consumes the line that matches `yaml_block_end`. This is correct.
Let's verify the fix with the reproduction script.
TOOL CALL · edit_file
{
"filepath": "tap/parser.py",
"new_string": " raw_yaml.append(next(fh).replace(indent, \"\", 1).rstrip('\\r\\n'))",
"old_string": " raw_yaml.append(next(fh).replace(indent, \"\", 1))"
}Result of edit_file 590 characters
{
"status": "ok",
"filepath": "tap/parser.py",
"occurrences": 1,
"strategy": "exact",
"diff": "--- a/tap/parser.py\n+++ b/tap/parser.py\n@@ -181,7 +181,7 @@\n try:\n next(fh)\n while indent_match.match(fh.peek()):\n- raw_yaml.append(next(fh).replace(indent, \"\", 1))\n+ raw_yaml.append(next(fh).replace(indent, \"\", 1).rstrip('\\r\\n'))\n # check for the end and stop adding yaml if encountered\n if self.yaml_block_end.match(fh.peek()):\n next(fh)\n",
"is_truncated": false
}Turn 13at 339 s162 tokens out11,355 prompt tokens
Now run the reproduction script again.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nimport tap.parser\n\ntap_input = \"\"\"TAP version 13\n1..2\nok 1 A passing test\n ---\n message: test\n severity: fail\n output: |+\n this is a multiline\n string but with tap\n somehow blank lines\n are added to it.\n\"\"\"\nparser = tap.parser.Parser()\n\nfor i, l in enumerate(parser.parse_text(tap_input)):\n if i == 2:\n print(\"{!r}\".format(l.yaml_block[\"output\"].splitlines()))\nPY\n"
}Result of run_command 151 characters
{
"status": "ok",
"stdout": "['this is a multiline', 'string but with tap', 'somehow blank lines', 'are added to it.']\n",
"stderr": "",
"exit_code": 0
}Turn 14at 345 s87 tokens out11,583 prompt tokens
Perfect! The output is now as expected: `['this is a multiline', 'string but with tap', 'somehow blank lines', 'are added to it.']`. Now I should run the existing tests to make sure no regressions.
TOOL CALL · run_command
{
"command": "pytest tap/tests/test_parser.py -q --tb=short --no-header"
}Result of run_command 161 characters
{
"status": "ok",
"stdout": "........................... [100%]\n27 passed in 0.08s\n",
"stderr": "",
"exit_code": 0
}Turn 15at 349 s59 tokens out11,731 prompt tokens
All tests in `tap/tests/test_parser.py` passed. I'll run all tests just to be sure.
TOOL CALL · run_command
{
"command": "pytest tap/tests/ -q --tb=short --no-header"
}Result of run_command 243 characters
{
"status": "ok",
"stdout": "........................................................................ [ 63%]\n.......................................... [100%]\n114 passed in 0.09s\n",
"stderr": "",
"exit_code": 0
}Turn 16at 361 s148 tokens out11,864 prompt tokens
All tests passed.
Let's double check if there are any other similar patterns in the codebase that I missed.
I only searched for `_extract` in `tap/parser.py`.
Let's check other files for `rstrip('\n')` or `rstrip('\r\n')` or `.join` of lines.
Actually, `_extract_yaml_block` was the only one that seemed to be doing this in `tap/parser.py`.
I'll do one more check for any other `_extract` methods in the entire `tap` directory.
TOOL CALL · run_command
{
"command": "grep -rn \"_extract\" tap/"
}Result of run_command 204 characters
{
"status": "ok",
"stdout": "tap/parser.py:168: concat_yaml = self._extract_yaml_block(indent, fh)\ntap/parser.py:177: def _extract_yaml_block(self, indent, fh):\n",
"stderr": "",
"exit_code": 0
}Turn 17at 365 s75 tokens out12,104 prompt tokens
Only `_extract_yaml_block` in `tap/parser.py`. I'll check if there are other ways YAML blocks are extracted. I'll search for `.join(` in `tap/parser.py`.
TOOL CALL · run_command
{
"command": "grep \"\\.join(\" tap/parser.py"
}Result of run_command 99 characters
{
"status": "ok",
"stdout": " return \"\\n\".join(raw_yaml)\n",
"stderr": "",
"exit_code": 0
}Turn 18at 373 s106 tokens out12,230 prompt tokens
Only one `.join` in `tap/parser.py`. I'm confident with the fix. One last check: the problem statement mentioned "additional newlines added in YAML blocks for multi-line strings". My fix addresses exactly this by removing the trailing newline from each line before joining them with a single newline. Let's verify I didn't leave any untracked files.
TOOL CALL · run_command
{
"command": "git status --short && git diff"
}Result of run_command 683 characters
{
"status": "ok",
"stdout": " M tap/parser.py\ndiff --git a/tap/parser.py b/tap/parser.py\nindex 637436b..69c74b4 100644\n--- a/tap/parser.py\n+++ b/tap/parser.py\n@@ -181,7 +181,7 @@ WARNING: Optional imports not found, TAP 13 output will be\n try:\n next(fh)\n while indent_match.match(fh.peek()):\n- raw_yaml.append(next(fh).replace(indent, \"\", 1))\n+ raw_yaml.append(next(fh).replace(indent, \"\", 1).rstrip('\\r\\n'))\n # check for the end and stop adding yaml if encountered\n if self.yaml_block_end.match(fh.peek()):\n next(fh)\n",
"stderr": "",
"exit_code": 0
}Turn 19at 376 s24 tokens out12,590 prompt tokens
The diff looks clean. I will now submit the patch.
TOOL CALL · submit_patch
Result of submit_patch 55 characters
{
"status": "ok",
"patch_size": 586,
"files_changed": 1
}Turn 20at 386 s119 tokens out12,653 prompt tokens
I have fixed the bug by adding `.rstrip('\r\n')` to the lines extracted in `_extract_yaml_block`. This prevents unwanted double-newlines in YAML blocks.
Verified the fix with a reproduction script and all existing tests.
Turn 21at 386 s
The bug was caused by `_extract_yaml_block` joining lines with `\n` while the lines themselves still contained their trailing newline characters. This resulted in empty lines being inserted into multi-line strings in YAML blocks. This has been fixed by stripping the trailing newline characters from each extracted line before joining them.
Model calls (not matched to turns)
Generated tokens 304 tokens · stopped: STOP
The user is reporting a bug in `tap.parser._extract_yaml_block()` where newlines are incorrectly added to multi-line strings in YAML blocks. The issue is that `"\n".join(raw_yaml)` is used without stripping the existing newline characters from each line in `raw_yaml`. I need to: 1. Locate `_extract_yaml_block` in `tap/parser.py`. 2. Reproduce the bug using the example provided in the problem statement. 3. Fix the bug by stripping the newlines from each line in `raw_yaml` before joining them. 4. Verify the fix. Let's start by reproducing the bug.
<|channel>thought
The user is reporting a bug in `tap.parser._extract_yaml_block()` where newlines are incorrectly added to multi-line strings in YAML blocks.
The issue is that `"\n".join(raw_yaml)` is used without stripping the existing newline characters from each line in `raw_yaml`.
I need to:
1. Locate `_extract_yaml_block` in `tap/parser.py`.
2. Reproduce the bug using the example provided in the problem statement.
3. Fix the bug by stripping the newlines from each line in `raw_yaml` before joining them.
4. Verify the fix.
Let's start by reproducing the bug.<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
import tap.parser
tap_input = """TAP version 13
1..2
ok 1 A passing test
---
message: test
severity: fail
output: |+
this is a multiline
string but with tap
somehow blank lines
are added to it.
"""
parser = tap.parser.Parser()
for i, l in enumerate(parser.parse_text(tap_input)):
if i == 2:
print("{!r}".format(l.yaml_block["output"].splitlines()))
PY
<|"|>}<tool_call|><|tool_response>
Generated tokens 130 tokens · stopped: STOP
The reproduction script confirms the issue. The output is `['', 'this is a multiline', '', 'string but with tap', '', 'somehow blank lines', '', 'are added to it.']` but it should be `['this is a multiline', 'string but with tap', 'somehow blank lines', 'are added to it.']`. Now let's locate `_extract_yaml_block` in `tap/parser.py`.
The reproduction script confirms the issue. The output is `['', 'this is a multiline', '', 'string but with tap', '', 'somehow blank lines', '', 'are added to it.']` but it should be `['this is a multiline', 'string but with tap', 'somehow blank lines', 'are added to it.']`.
Now let's locate `_extract_yaml_block` in `tap/parser.py`.
<channel|><|tool_call>call:run_command{command:<|"|>grep -n "def _extract_yaml_block" tap/parser.py<|"|>}<tool_call|><|tool_response>
Generated tokens 58 tokens · stopped: STOP
Now I will read the `_extract_yaml_block` function in `tap/parser.py`.
Now I will read the `_extract_yaml_block` function in `tap/parser.py`.<channel|><|tool_call>call:read_file{end_line:200,filepath:<|"|>tap/parser.py<|"|>,start_line:177}<tool_call|><|tool_response>
Generated tokens 548 tokens · stopped: STOP
The code is:
```python
def _extract_yaml_block(self, indent, fh):
"""Extract a raw yaml block from a file handler"""
raw_yaml = []
indent_match = re.compile(r"^{}".format(indent))
try:
next(fh)
while indent_match.match(fh.peek()):
raw_yaml.append(next(fh).replace(indent, "", 1))
# check for the end and stop adding yaml if encountered
if self.yaml_block_end.match(fh.peek()):
next(fh)
break
except StopIteration:
pass
return "\n".join(raw_yaml)
```
The issue is that `next(fh)` returns a line that includes the trailing newline character.
When we do `raw_yaml.append(next(fh).replace(indent, "", 1))`, the line still has the trailing newline (e.g., `"\n"`).
Then `"\n".join(raw_yaml)` adds another newline between the lines.
If `next(fh)` returns `" this is a line\n"`, and `indent` is `" "`, then `raw_yaml` gets `"this is a line\n"`.
When joining with `"\n"`, it becomes `"this is a line\n\n"`.
Wait, if `next(fh)` returns `" this is a line\n"`, then `raw_yaml.append("this is a line\n")`.
If there are two lines:
`["line1\n", "line2\n"]`
`"\n".join(["line1\n", "line2\n"])` -> `"line1\n\nline2\n"`
This confirms the problem. We should strip the trailing newline from each line.
Actually, `line.rstrip('\n')` or `line.rstrip('\r\n')` would be appropriate.
Let's see if there are other places where this happens.
I'll check for other `_extract` methods or similar logic in `tap/parser.py`.
Looking at the provided `read_file` output, there aren't any other obvious similar methods in that immediate vicinity. I'll search for `_extract` in `tap/parser.py`.
The code is:
```python
def _extract_yaml_block(self, indent, fh):
"""Extract a raw yaml block from a file handler"""
raw_yaml = []
indent_match = re.compile(r"^{}".format(indent))
try:
next(fh)
while indent_match.match(fh.peek()):
raw_yaml.append(next(fh).replace(indent, "", 1))
# check for the end and stop adding yaml if encountered
if self.yaml_block_end.match(fh.peek()):
next(fh)
break
except StopIteration:
pass
return "\n".join(raw_yaml)
```
The issue is that `next(fh)` returns a line that includes the trailing newline character.
When we do `raw_yaml.append(next(fh).replace(indent, "", 1))`, the line still has the trailing newline (e.g., `"\n"`).
Then `"\n".join(raw_yaml)` adds another newline between the lines.
If `next(fh)` returns `" this is a line\n"`, and `indent` is `" "`, then `raw_yaml` gets `"this is a line\n"`.
When joining with `"\n"`, it becomes `"this is a line\n\n"`.
Wait, if `next(fh)` returns `" this is a line\n"`, then `raw_yaml.append("this is a line\n")`.
If there are two lines:
`["line1\n", "line2\n"]`
`"\n".join(["line1\n", "line2\n"])` -> `"line1\n\nline2\n"`
This confirms the problem. We should strip the trailing newline from each line.
Actually, `line.rstrip('\n')` or `line.rstrip('\r\n')` would be appropriate.
Let's see if there are other places where this happens.
I'll check for other `_extract` methods or similar logic in `tap/parser.py`.
Looking at the provided `read_file` output, there aren't any other obvious similar methods in that immediate vicinity. I'll search for `_extract` in `tap/parser.py`.
<channel|><|tool_call>call:run_command{command:<|"|>grep "_extract" tap/parser.py<|"|>}<tool_call|><|tool_response>
Generated tokens 119 tokens · stopped: STOP
Only `_extract_yaml_block` seems to be doing this. Wait, let's check if `fh` is something like a file object or a list of lines. In `tap.parser.Parser.parse_text(text)`, `text` is split into lines and passed to something that probably uses `fh`. Let's look at `parse_text` in `tap/parser.py`.
Only `_extract_yaml_block` seems to be doing this.
Wait, let's check if `fh` is something like a file object or a list of lines.
In `tap.parser.Parser.parse_text(text)`, `text` is split into lines and passed to something that probably uses `fh`.
Let's look at `parse_text` in `tap/parser.py`.
<channel|><|tool_call>call:run_command{command:<|"|>grep -n "def parse_text" tap/parser.py<|"|>}<tool_call|><|tool_response>
Generated tokens 49 tokens · stopped: STOP
Reading `parse_text` and how it uses `fh`.
Reading `parse_text` and how it uses `fh`.
<channel|><|tool_call>call:read_file{end_line:120,filepath:<|"|>tap/parser.py<|"|>,start_line:79}<tool_call|><|tool_response>
Generated tokens 186 tokens · stopped: STOP
In `parse` method:
```python
for line in fh_new:
yield self.parse_line(line.rstrip(), fh_new)
```
And in `parse_line`:
```python
def parse_line(self, text, fh=None):
"""Parse a line into whatever TAP category it belongs."""
match = self.ok.match(text)
if match:
return self._parse_result(True, match, fh)
```
So `parse_line` is called with `line.rstrip()`.
`_parse_result` probably calls `_extract_yaml_block`.
Let's look at `_parse_result`.
In `parse` method:
```python
for line in fh_new:
yield self.parse_line(line.rstrip(), fh_new)
```
And in `parse_line`:
```python
def parse_line(self, text, fh=None):
"""Parse a line into whatever TAP category it belongs."""
match = self.ok.match(text)
if match:
return self._parse_result(True, match, fh)
```
So `parse_line` is called with `line.rstrip()`.
`_parse_result` probably calls `_extract_yaml_block`.
Let's look at `_parse_result`.
<channel|><|tool_call>call:run_command{command:<|"|>grep -n "def _parse_result" tap/parser.py<|"|>}<tool_call|><|tool_response>
Generated tokens 44 tokens · stopped: STOP
Reading `_parse_result`.
Reading `_parse_result`.
<channel|><|tool_call>call:read_file{end_line:176,filepath:<|"|>tap/parser.py<|"|>,start_line:152}<tool_call|><|tool_response>
Generated tokens 1,973 tokens · stopped: STOP
So `_extract_yaml_block` is called with `fh`.
`fh` in `parse` is `fh_new = peekable(itertools.chain([first_line], fh))`.
The items in `fh_new` are the original lines from `fh` (including newlines) because they were not stripped when put into the chain.
Inside `parse`, `yield self.parse_line(line.rstrip(), fh_new)` strips the line for `parse_line`, but `fh_new` still contains the original lines.
So in `_extract_yaml_block`:
```python
def _extract_yaml_block(self, indent, fh):
"""Extract a raw yaml block from a file handler"""
raw_yaml = []
indent_match = re.compile(r"^{}".format(indent))
try:
next(fh)
while indent_match.match(fh.peek()):
raw_yaml.append(next(fh).replace(indent, "", 1))
# check for the end and stop adding yaml if encountered
if self.yaml_block_end.match(fh.peek()):
next(fh)
break
except StopIteration:
pass
return "\n".join(raw_yaml)
```
`next(fh)` returns the line with the newline.
To fix this, we should strip the trailing newline from each line in `raw_yaml`.
Wait, `next(fh).rstrip('\n')` or `next(fh).rstrip('\r\n')`?
Actually, `rstrip('\n')` might be too aggressive if the line had trailing spaces that should be preserved in YAML.
However, YAML's `|+` (keep) and `|` (strip) blocks handle trailing whitespaces.
But the problem description says "unwanted empty lines", which suggests the `\n` from `next(fh)` combined with `"\n".join(raw_yaml)` is the issue.
If the line was `" text \n"`, `replace(indent, "", 1)` would make it `"text \n"`.
Then `"\n".join(["text \n"])` results in `"text \n"`.
If we have:
`" line 1 \n"`
`" line 2 \n"`
Result: `"line 1 \n\nline 2 \n"`
We want: `"line 1 \nline 2 "` (or similar, depending on how it's joined).
Wait, if we join with `"\n"`, and we want the resulting string to be what's parsed as YAML, then the lines in the YAML block should be separated by a single newline.
If we do `raw_yaml.append(next(fh).replace(indent, "", 1).rstrip('\n'))`, then for:
`" line 1 \n"`
`" line 2 \n"`
`raw_yaml` is `["line 1 ", "line 2 "]`.
`"\n".join(raw_yaml)` is `"line 1 \nline 2 "`.
This looks correct.
Wait, what if it's `\r\n`? `rstrip('\n')` will leave `\r`.
Maybe `rstrip('\r\n')` or better yet, `rstrip('\n').rstrip('\r')`.
Actually, in Python, when reading a file in text mode (which `StringIO` and most file opens do), `\r\n` is typically converted to `\n` (universal newlines).
Since `parse_text` uses `StringIO(text)`, and `text` is a Python string, newlines are likely `\n`.
Let's check if we should use `rstrip('\n')` or `rstrip()`.
The problem says "without having stripped the newline character in each possible line".
If we use `.rstrip()`, we strip all trailing whitespace, including spaces. This might be a problem for YAML multi-line strings where trailing whitespace is significant.
So we should only strip the trailing newline.
A common way is `.rstrip('\n')` if we know it's `\n`, or `.rstrip('\r\n')` if we want to handle both.
Wait, `'\r\n'.rstrip('\n')` gives `'\r'`.
`'\r\n'.rstrip('\r\n')` gives `''`.
Let's see how `parse` does it: `line.rstrip()`.
`parse` does `yield self.parse_line(line.rstrip(), fh_new)`.
But `line.rstrip()` strips ALL trailing whitespace.
In `_extract_yaml_block`, we are extracting the RAW YAML block to be parsed by a YAML parser later.
The YAML parser expects the YAML content.
If we use `.rstrip()`, we might break the YAML.
Let's double check the example.
```python
output: |+
this is a multiline
string but with tap
somehow blank lines
are added to it.
```
Here the lines are `" this is a multiline\n"`, etc.
Subtracting the indent `" "` (5 spaces) gives `"this is a multiline\n"`.
Then joining with `\n` gives `"this is a multiline\n\nstring but with tap\n\nsomehow..."`.
If we only strip the newline character:
`"this is a multiline"`
`"string but with tap"`
`"somehow blank lines"`
`"are added to it."`
Joined: `"this is a multiline\nstring but with tap\nsomehow blank lines\nare added to it."`
Parsed by YAML, `|+` will preserve trailing newlines of the block, but it doesn't add newlines between lines.
Wait, if the input line was `" this is a multiline \n"`, and we use `.rstrip('\n')`, we get `"this is a multiline "`. This is correct.
So the fix is to change:
`raw_yaml.append(next(fh).replace(indent, "", 1))`
to
`raw_yaml.append(next(fh).replace(indent, "", 1).rstrip('\n'))`
Wait, what about `\r\n`?
If we use `.rstrip('\r\n')` it will remove all trailing `\r` and `\n`. This might also remove trailing empty lines if we are not careful? No, `rstrip` removes characters from the end of the string.
`"line\n\n".rstrip('\n')` -> `"line"`
Wait, if the line ends with multiple newlines?
`next(fh)` should only return ONE line. So it will have at most one trailing newline (unless the line itself is just a newline).
If the line is `" \n"`, `replace(indent, "", 1)` might be `" \n"` or `"\n"`.
Then `.rstrip('\n')` becomes `" "` or `""`.
Then `"\n".join` will add the newline back.
Let's verify with the reproduction script.
So `_extract_yaml_block` is called with `fh`.
`fh` in `parse` is `fh_new = peekable(itertools.chain([first_line], fh))`.
The items in `fh_new` are the original lines from `fh` (including newlines) because they were not stripped when put into the chain.
Inside `parse`, `yield self.parse_line(line.rstrip(), fh_new)` strips the line for `parse_line`, but `fh_new` still contains the original lines.
So in `_extract_yaml_block`:
```python
def _extract_yaml_block(self, indent, fh):
"""Extract a raw yaml block from a file handler"""
raw_yaml = []
indent_match = re.compile(r"^{}".format(indent))
try:
next(fh)
while indent_match.match(fh.peek()):
raw_yaml.append(next(fh).replace(indent, "", 1))
# check for the end and stop adding yaml if encountered
if self.yaml_block_end.match(fh.peek()):
next(fh)
break
except StopIteration:
pass
return "\n".join(raw_yaml)
```
`next(fh)` returns the line with the newline.
To fix this, we should strip the trailing newline from each line in `raw_yaml`.
Wait, `next(fh).rstrip('\n')` or `next(fh).rstrip('\r\n')`?
Actually, `rstrip('\n')` might be too aggressive if the line had trailing spaces that should be preserved in YAML.
However, YAML's `|+` (keep) and `|` (strip) blocks handle trailing whitespaces.
But the problem description says "unwanted empty lines", which suggests the `\n` from `next(fh)` combined with `"\n".join(raw_yaml)` is the issue.
If the line was `" text \n"`, `replace(indent, "", 1)` would make it `"text \n"`.
Then `"\n".join(["text \n"])` results in `"text \n"`.
If we have:
`" line 1 \n"`
`" line 2 \n"`
Result: `"line 1 \n\nline 2 \n"`
We want: `"line 1 \nline 2 "` (or similar, depending on how it's joined).
Wait, if we join with `"\n"`, and we want the resulting string to be what's parsed as YAML, then the lines in the YAML block should be separated by a single newline.
If we do `raw_yaml.append(next(fh).replace(indent, "", 1).rstrip('\n'))`, then for:
`" line 1 \n"`
`" line 2 \n"`
`raw_yaml` is `["line 1 ", "line 2 "]`.
`"\n".join(raw_yaml)` is `"line 1 \nline 2 "`.
This looks correct.
Wait, what if it's `\r\n`? `rstrip('\n')` will leave `\r`.
Maybe `rstrip('\r\n')` or better yet, `rstrip('\n').rstrip('\r')`.
Actually, in Python, when reading a file in text mode (which `StringIO` and most file opens do), `\r\n` is typically converted to `\n` (universal newlines).
Since `parse_text` uses `StringIO(text)`, and `text` is a Python string, newlines are likely `\n`.
Let's check if we should use `rstrip('\n')` or `rstrip()`.
The problem says "without having stripped the newline character in each possible line".
If we use `.rstrip()`, we strip all trailing whitespace, including spaces. This might be a problem for YAML multi-line strings where trailing whitespace is significant.
So we should only strip the trailing newline.
A common way is `.rstrip('\n')` if we know it's `\n`, or `.rstrip('\r\n')` if we want to handle both.
Wait, `'\r\n'.rstrip('\n')` gives `'\r'`.
`'\r\n'.rstrip('\r\n')` gives `''`.
Let's see how `parse` does it: `line.rstrip()`.
`parse` does `yield self.parse_line(line.rstrip(), fh_new)`.
But `line.rstrip()` strips ALL trailing whitespace.
In `_extract_yaml_block`, we are extracting the RAW YAML block to be parsed by a YAML parser later.
The YAML parser expects the YAML content.
If we use `.rstrip()`, we might break the YAML.
Let's double check the example.
```python
output: |+
this is a multiline
string but with tap
somehow blank lines
are added to it.
```
Here the lines are `" this is a multiline\n"`, etc.
Subtracting the indent `" "` (5 spaces) gives `"this is a multiline\n"`.
Then joining with `\n` gives `"this is a multiline\n\nstring but with tap\n\nsomehow..."`.
If we only strip the newline character:
`"this is a multiline"`
`"string but with tap"`
`"somehow blank lines"`
`"are added to it."`
Joined: `"this is a multiline\nstring but with tap\nsomehow blank lines\nare added to it."`
Parsed by YAML, `|+` will preserve trailing newlines of the block, but it doesn't add newlines between lines.
Wait, if the input line was `" this is a multiline \n"`, and we use `.rstrip('\n')`, we get `"this is a multiline "`. This is correct.
So the fix is to change:
`raw_yaml.append(next(fh).replace(indent, "", 1))`
to
`raw_yaml.append(next(fh).replace(indent, "", 1).rstrip('\n'))`
Wait, what about `\r\n`?
If we use `.rstrip('\r\n')` it will remove all trailing `\r` and `\n`. This might also remove trailing empty lines if we are not careful? No, `rstrip` removes characters from the end of the string.
`"line\n\n".rstrip('\n')` -> `"line"`
Wait, if the line ends with multiple newlines?
`next(fh)` should only return ONE line. So it will have at most one trailing newline (unless the line itself is just a newline).
If the line is `" \n"`, `replace(indent, "", 1)` might be `" \n"` or `"\n"`.
Then `.rstrip('\n')` becomes `" "` or `""`.
Then `"\n".join` will add the newline back.
Let's verify with the reproduction script.
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
import tap.parser
from io import StringIO
tap_input = """TAP version 13
1..2
ok 1 A passing test
---
message: test
severity: fail
output: |+
this is a multiline
string but with tap
somehow blank lines
are added to it.
"""
parser = tap.parser.Parser()
# For reproduction, let's manually call _extract_yaml_block
# The indent is ' ' (3 spaces before '---')
# No, the indent for YAML block is the indent of the '---' line.
# In the example:
# 'ok 1 A passing test\n'
# ' ---\n'
# ' message: test\n'
# ' severity: fail\n'
# ' output: |+\n'
# ' this is a multiline\n'
# ...
# The '---' is at 3 spaces.
# The content starts after '---' line.
# The 'message' line is at 3 spaces.
# The 'output' line is at 3 spaces.
# The 'this is a multiline' line is at 5 spaces.
# Let's just use the parser as intended.
for i, l in enumerate(parser.parse_text(tap_input)):
if i == 2:
print("{!r}".format(l.yaml_block["output"].splitlines()))
PY
<|"|>}<tool_call|><|tool_response>
Generated tokens 1,396 tokens · stopped: STOP
Wait, I noticed something in the output:
`['', 'this is a multiline', '', 'string but with tap', '', 'somehow blank lines', '', 'are added to it.']`
The first element is `''`. This means the first line in `raw_yaml` was `'\n'`.
Looking at the `tap_input`:
```python
tap_input = """TAP version 13
1..2
ok 1 A passing test
---
message: test
severity: fail
output: |+
this is a multiline
string but with tap
somehow blank lines
are added to it.
"""
```
Lines after `ok 1 A passing test`:
1. ` ---\n` (matched as yaml block start)
2. ` message: test\n` (indent match)
3. ` severity: fail\n` (indent match)
4. ` output: |+\n` (indent match)
5. ` this is a multiline\n` (indent match)
6. ` string but with tap\n` (indent match)
7. ` somehow blank lines\n` (indent match)
8. ` are added to it.\n` (indent match)
Wait, how does `_extract_yaml_block` work?
```python
def _extract_yaml_block(self, indent, fh):
"""Extract a raw yaml block from a file handler"""
raw_yaml = []
indent_match = re.compile(r"^{}".format(indent))
try:
next(fh) # This skips the '---' line
while indent_match.match(fh.peek()):
raw_yaml.append(next(fh).replace(indent, "", 1))
# check for the end and stop adding yaml if encountered
if self.yaml_block_end.match(fh.peek()):
next(fh)
break
except StopIteration:
pass
return "\n".join(raw_yaml)
```
If `indent` is `" "` (3 spaces).
1. `next(fh)` skips ` ---\n`.
2. `fh.peek()` is ` message: test\n`. `indent_match` matches.
- `next(fh)` returns ` message: test\n`.
- `replace(indent, "", 1)` returns `message: test\n`.
- `raw_yaml.append("message: test\n")`.
3. `fh.peek()` is ` severity: fail\n`. Matches.
- `raw_yaml.append("severity: fail\n")`.
4. `fh.peek()` is ` output: |+\n`. Matches.
- `raw_yaml.append("output: |+\n")`.
5. `fh.peek()` is ` this is a multiline\n`. Matches (since it starts with 3 spaces).
- `next(fh)` returns ` this is a multiline\n`.
- `replace(indent, "", 1)` returns ` this is a multiline\n`.
- `raw_yaml.append(" this is a multiline\n")`.
... and so on.
So `raw_yaml` becomes:
`["message: test\n", "severity: fail\n", "output: |+\n", " this is a multiline\n", " string but with tap\n", " somehow blank lines\n", " are added to it.\n"]`
Then `"\n".join(raw_yaml)` gives:
`"message: test\n\nseverity: fail\n\noutput: |+\n\n this is a multiline\n\n string but with tap\n\n somehow blank lines\n\n are added to it.\n"`
When this is parsed by YAML, the double newlines might be causing the issue.
Wait, the output of the reproduction script was:
`['', 'this is a multiline', '', 'string but with tap', '', 'somehow blank lines', '', 'are added to it.']`
This is the value of `l.yaml_block["output"]`.
The `output` field in YAML is:
```yaml
output: |+
this is a multiline
string but with tap
somehow blank lines
are added to it.
```
If the YAML parser sees:
```yaml
output: |+
this is a multiline
string but with tap
somehow blank lines
are added to it.
```
Then it will include those empty lines.
Which is exactly what's happening because `\n\n` is created.
So yes, we need to strip the trailing newline from each line before joining them with `\n`.
Let's check which newline to strip. `rstrip('\n')` is probably enough for `StringIO` and standard Unix files. To be safe, `rstrip('\n').rstrip('\r')` or `rstrip('\r\n')`?
Actually, if the line ends with `\r\n`, `rstrip('\n')` will leave `\r`.
If we use `rstrip('\r\n')`, it will remove both.
Actually, `rstrip('\n')` in universal newline mode (which is default) should be sufficient if the input is already normalized.
Wait, `tap/parser.py` uses `StringIO` in `parse_text`, and `StringIO` handles universal newlines if the input string has them.
Let's test `rstrip('\n')` in a small script first.
Wait, I noticed something in the output:
`['', 'this is a multiline', '', 'string but with tap', '', 'somehow blank lines', '', 'are added to it.']`
The first element is `''`. This means the first line in `raw_yaml` was `'\n'`.
Looking at the `tap_input`:
```python
tap_input = """TAP version 13
1..2
ok 1 A passing test
---
message: test
severity: fail
output: |+
this is a multiline
string but with tap
somehow blank lines
are added to it.
"""
```
Lines after `ok 1 A passing test`:
1. ` ---\n` (matched as yaml block start)
2. ` message: test\n` (indent match)
3. ` severity: fail\n` (indent match)
4. ` output: |+\n` (indent match)
5. ` this is a multiline\n` (indent match)
6. ` string but with tap\n` (indent match)
7. ` somehow blank lines\n` (indent match)
8. ` are added to it.\n` (indent match)
Wait, how does `_extract_yaml_block` work?
```python
def _extract_yaml_block(self, indent, fh):
"""Extract a raw yaml block from a file handler"""
raw_yaml = []
indent_match = re.compile(r"^{}".format(indent))
try:
next(fh) # This skips the '---' line
while indent_match.match(fh.peek()):
raw_yaml.append(next(fh).replace(indent, "", 1))
# check for the end and stop adding yaml if encountered
if self.yaml_block_end.match(fh.peek()):
next(fh)
break
except StopIteration:
pass
return "\n".join(raw_yaml)
```
If `indent` is `" "` (3 spaces).
1. `next(fh)` skips ` ---\n`.
2. `fh.peek()` is ` message: test\n`. `indent_match` matches.
- `next(fh)` returns ` message: test\n`.
- `replace(indent, "", 1)` returns `message: test\n`.
- `raw_yaml.append("message: test\n")`.
3. `fh.peek()` is ` severity: fail\n`. Matches.
- `raw_yaml.append("severity: fail\n")`.
4. `fh.peek()` is ` output: |+\n`. Matches.
- `raw_yaml.append("output: |+\n")`.
5. `fh.peek()` is ` this is a multiline\n`. Matches (since it starts with 3 spaces).
- `next(fh)` returns ` this is a multiline\n`.
- `replace(indent, "", 1)` returns ` this is a multiline\n`.
- `raw_yaml.append(" this is a multiline\n")`.
... and so on.
So `raw_yaml` becomes:
`["message: test\n", "severity: fail\n", "output: |+\n", " this is a multiline\n", " string but with tap\n", " somehow blank lines\n", " are added to it.\n"]`
Then `"\n".join(raw_yaml)` gives:
`"message: test\n\nseverity: fail\n\noutput: |+\n\n this is a multiline\n\n string but with tap\n\n somehow blank lines\n\n are added to it.\n"`
When this is parsed by YAML, the double newlines might be causing the issue.
Wait, the output of the reproduction script was:
`['', 'this is a multiline', '', 'string but with tap', '', 'somehow blank lines', '', 'are added to it.']`
This is the value of `l.yaml_block["output"]`.
The `output` field in YAML is:
```yaml
output: |+
this is a multiline
string but with tap
somehow blank lines
are added to it.
```
If the YAML parser sees:
```yaml
output: |+
this is a multiline
string but with tap
somehow blank lines
are added to it.
```
Then it will include those empty lines.
Which is exactly what's happening because `\n\n` is created.
So yes, we need to strip the trailing newline from each line before joining them with `\n`.
Let's check which newline to strip. `rstrip('\n')` is probably enough for `StringIO` and standard Unix files. To be safe, `rstrip('\n').rstrip('\r')` or `rstrip('\r\n')`?
Actually, if the line ends with `\r\n`, `rstrip('\n')` will leave `\r`.
If we use `rstrip('\r\n')`, it will remove both.
Actually, `rstrip('\n')` in universal newline mode (which is default) should be sufficient if the input is already normalized.
Wait, `tap/parser.py` uses `StringIO` in `parse_text`, and `StringIO` handles universal newlines if the input string has them.
Let's test `rstrip('\n')` in a small script first.
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
s = "line1\n"
print(f"{s!r}")
print(f"{s.rstrip('\n')!r}")
s2 = "line1\r\n"
print(f"{s2!r}")
print(f"{s2.rstrip('\n')!r}")
print(f"{s2.rstrip('\r\n')!r}")
PY
<|"|>}<tool_call|><|tool_response>
Generated tokens 152 tokens · stopped: STOP
Ah, f-string restriction in some Python versions. Let's use `.format()`.
Ah, f-string restriction in some Python versions. Let's use `.format()`.
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
s = "line1\n"
print("s: {!r}".format(s))
print("rstrip(\\n): {!r}".format(s.rstrip('\n')))
s2 = "line1\r\n"
print("s2: {!r}".format(s2))
print("rstrip(\\n): {!r}".format(s2.rstrip('\n')))
print("rstrip(\\r\\n): {!r}".format(s2.rstrip('\r\n')))
PY
<|"|>}<tool_call|><|tool_response>
Generated tokens 521 tokens · stopped: STOP
So `.rstrip('\r\n')` is safer.
Wait, I should check if `rstrip('\r\n')` would remove too much.
If the line was `" text\r\n"`, it becomes `" text"`. Correct.
If the line was `" text\n\n"`, it becomes `" text"`.
But `next(fh)` only returns one line, so it should only have one trailing newline (unless it's a binary file or something weird, but here it's a text file).
Actually, `next(fh)` returns the line AND the newline character(s) at the end.
Standard file iteration in Python returns lines that end in `\n` or `\r\n`.
So `.rstrip('\r\n')` should be correct.
Wait, if a line is empty, `next(fh)` returns `"\n"`.
`"\n".rstrip('\r\n')` becomes `""`.
Then `"\n".join` will put it back as a single newline. Correct.
Let's apply the fix to `tap/parser.py`.
```python
<<<<
raw_yaml.append(next(fh).replace(indent, "", 1))
====
raw_yaml.append(next(fh).replace(indent, "", 1).rstrip('\r\n'))
>>>>
```
Wait, I noticed that `parse_line` is called with `line.rstrip()`.
`_extract_yaml_block` is called when `parse_line` detects a YAML block.
The `fh` used in `_extract_yaml_block` is the original file handle.
One more thing: `_extract_yaml_block` also has:
```python
if self.yaml_block_end.match(fh.peek()):
next(fh)
break
```
This consumes the line that matches `yaml_block_end`. This is correct.
Let's verify the fix with the reproduction script.
So `.rstrip('\r\n')` is safer.
Wait, I should check if `rstrip('\r\n')` would remove too much.
If the line was `" text\r\n"`, it becomes `" text"`. Correct.
If the line was `" text\n\n"`, it becomes `" text"`.
But `next(fh)` only returns one line, so it should only have one trailing newline (unless it's a binary file or something weird, but here it's a text file).
Actually, `next(fh)` returns the line AND the newline character(s) at the end.
Standard file iteration in Python returns lines that end in `\n` or `\r\n`.
So `.rstrip('\r\n')` should be correct.
Wait, if a line is empty, `next(fh)` returns `"\n"`.
`"\n".rstrip('\r\n')` becomes `""`.
Then `"\n".join` will put it back as a single newline. Correct.
Let's apply the fix to `tap/parser.py`.
```python
<<<<
raw_yaml.append(next(fh).replace(indent, "", 1))
====
raw_yaml.append(next(fh).replace(indent, "", 1).rstrip('\r\n'))
>>>>
```
Wait, I noticed that `parse_line` is called with `line.rstrip()`.
`_extract_yaml_block` is called when `parse_line` detects a YAML block.
The `fh` used in `_extract_yaml_block` is the original file handle.
One more thing: `_extract_yaml_block` also has:
```python
if self.yaml_block_end.match(fh.peek()):
next(fh)
break
```
This consumes the line that matches `yaml_block_end`. This is correct.
Let's verify the fix with the reproduction script.
<channel|><|tool_call>call:edit_file{filepath:<|"|>tap/parser.py<|"|>,new_string:<|"|> raw_yaml.append(next(fh).replace(indent, "", 1).rstrip('\r\n'))<|"|>,old_string:<|"|> raw_yaml.append(next(fh).replace(indent, "", 1))<|"|>}<tool_call|><|tool_response>
Generated tokens 162 tokens · stopped: STOP
Now run the reproduction script again.
Now run the reproduction script again.
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
import tap.parser
tap_input = """TAP version 13
1..2
ok 1 A passing test
---
message: test
severity: fail
output: |+
this is a multiline
string but with tap
somehow blank lines
are added to it.
"""
parser = tap.parser.Parser()
for i, l in enumerate(parser.parse_text(tap_input)):
if i == 2:
print("{!r}".format(l.yaml_block["output"].splitlines()))
PY
<|"|>}<tool_call|><|tool_response>
Generated tokens 87 tokens · stopped: STOP
Perfect! The output is now as expected: `['this is a multiline', 'string but with tap', 'somehow blank lines', 'are added to it.']`. Now I should run the existing tests to make sure no regressions.
Perfect! The output is now as expected: `['this is a multiline', 'string but with tap', 'somehow blank lines', 'are added to it.']`.
Now I should run the existing tests to make sure no regressions.
<channel|><|tool_call>call:run_command{command:<|"|>pytest tap/tests/test_parser.py -q --tb=short --no-header<|"|>}<tool_call|><|tool_response>
Generated tokens 59 tokens · stopped: STOP
All tests in `tap/tests/test_parser.py` passed. I'll run all tests just to be sure.
All tests in `tap/tests/test_parser.py` passed.
I'll run all tests just to be sure.
<channel|><|tool_call>call:run_command{command:<|"|>pytest tap/tests/ -q --tb=short --no-header<|"|>}<tool_call|><|tool_response>
Generated tokens 148 tokens · stopped: STOP
All tests passed.
Let's double check if there are any other similar patterns in the codebase that I missed.
I only searched for `_extract` in `tap/parser.py`.
Let's check other files for `rstrip('\n')` or `rstrip('\r\n')` or `.join` of lines.
Actually, `_extract_yaml_block` was the only one that seemed to be doing this in `tap/parser.py`.
I'll do one more check for any other `_extract` methods in the entire `tap` directory.
All tests passed.
Let's double check if there are any other similar patterns in the codebase that I missed.
I only searched for `_extract` in `tap/parser.py`.
Let's check other files for `rstrip('\n')` or `rstrip('\r\n')` or `.join` of lines.
Actually, `_extract_yaml_block` was the only one that seemed to be doing this in `tap/parser.py`.
I'll do one more check for any other `_extract` methods in the entire `tap` directory.
<channel|><|tool_call>call:run_command{command:<|"|>grep -rn "_extract" tap/<|"|>}<tool_call|><|tool_response>
Generated tokens 75 tokens · stopped: STOP
Only `_extract_yaml_block` in `tap/parser.py`. I'll check if there are other ways YAML blocks are extracted. I'll search for `.join(` in `tap/parser.py`.
Only `_extract_yaml_block` in `tap/parser.py`.
I'll check if there are other ways YAML blocks are extracted.
I'll search for `.join(` in `tap/parser.py`.
<channel|><|tool_call>call:run_command{command:<|"|>grep "\.join(" tap/parser.py<|"|>}<tool_call|><|tool_response>
Generated tokens 106 tokens · stopped: STOP
Only one `.join` in `tap/parser.py`. I'm confident with the fix. One last check: the problem statement mentioned "additional newlines added in YAML blocks for multi-line strings". My fix addresses exactly this by removing the trailing newline from each line before joining them with a single newline. Let's verify I didn't leave any untracked files.
Only one `.join` in `tap/parser.py`.
I'm confident with the fix.
One last check: the problem statement mentioned "additional newlines added in YAML blocks for multi-line strings".
My fix addresses exactly this by removing the trailing newline from each line before joining them with a single newline.
Let's verify I didn't leave any untracked files.
<channel|><|tool_call>call:run_command{command:<|"|>git status --short && git diff<|"|>}<tool_call|><|tool_response>
Generated tokens 24 tokens · stopped: STOP
The diff looks clean. I will now submit the patch.
The diff looks clean.
I will now submit the patch.
<channel|><|tool_call>call:submit_patch{}<tool_call|><|tool_response>
Patch, tests and logs
Final code change Included
diff --git a/tap/parser.py b/tap/parser.py
index 637436b..69c74b4 100644
--- a/tap/parser.py
+++ b/tap/parser.py
@@ -181,7 +181,7 @@ WARNING: Optional imports not found, TAP 13 output will be
try:
next(fh)
while indent_match.match(fh.peek()):
- raw_yaml.append(next(fh).replace(indent, "", 1))
+ raw_yaml.append(next(fh).replace(indent, "", 1).rstrip('\r\n'))
# check for the end and stop adding yaml if encountered
if self.yaml_block_end.match(fh.peek()):
next(fh)
Test output Included
============================= test session starts ============================== collected 114 items tap/tests/test_adapter.py ..... [ 4%] tap/tests/test_directive.py ...... [ 9%] tap/tests/test_formatter.py .. [ 11%] tap/tests/test_line.py ....... [ 17%] tap/tests/test_loader.py ....... [ 23%] tap/tests/test_main.py ...... [ 28%] tap/tests/test_parser.py ........................... [ 52%] tap/tests/test_result.py ......... [ 60%] tap/tests/test_rules.py ........ [ 67%] tap/tests/test_runner.py ........ [ 74%] tap/tests/test_tracker.py ............................. [100%] ==================================== PASSES ==================================== - generated xml file: /tmp/rebench-grade-5cdc3f90bdd84737b0f7209ea05c7b07.xml -- =========================== short test summary info ============================ PASSED tap/tests/test_adapter.py::TestAdapter::test_adapter_has_filename PASSED tap/tests/test_adapter.py::TestAdapter::test_handles_not_ok_todo_test_line PASSED tap/tests/test_adapter.py::TestAdapter::test_handles_ok_test_line PASSED tap/tests/test_adapter.py::TestAdapter::test_handles_ok_todo_test_line PASSED tap/tests/test_adapter.py::TestAdapter::test_handles_skip_test_line PASSED tap/tests/test_directive.py::TestDirective::test_finds_simplest_skip PASSED tap/tests/test_directive.py::TestDirective::test_finds_simplest_todo PASSED tap/tests/test_directive.py::TestDirective::test_finds_skip PASSED tap/tests/test_directive.py::TestDirective::test_finds_todo PASSED tap/tests/test_directive.py::TestDirective::test_skip_at_beginning PASSED tap/tests/test_directive.py::TestDirective::test_todo_has_boundary PASSED tap/tests/test_formatter.py::TestFormatter::test_format_exception_as_diagnostics PASSED tap/tests/test_formatter.py::TestFormatter::test_formats_as_diagnostics PASSED tap/tests/test_line.py::TestLine::test_line_requires_category PASSED tap/tests/test_line.py::TestResult::test_category PASSED tap/tests/test_line.py::TestResult::test_ok PASSED tap/tests/test_line.py::TestResult::test_str_diagnostics PASSED tap/tests/test_line.py::TestResult::test_str_directive PASSED tap/tests/test_line.py::TestResult::test_str_not_ok PASSED tap/tests/test_line.py::TestResult::test_str_ok PASSED tap/tests/test_loader.py::TestLoader::test_errors_with_multiple_version_lines PASSED tap/tests/test_loader.py::TestLoader::test_errors_with_version_not_on_first_line PASSED tap/tests/test_loader.py::TestLoader::test_file_does_not_exist PASSED tap/tests/test_loader.py::TestLoader::test_handles_directory PASSED tap/tests/test_loader.py::TestLoader::test_handles_file PASSED tap/tests/test_loader.py::TestLoader::test_loads_from_stream PASSED tap/tests/test_loader.py::TestLoader::test_skip_plan_aborts_loading PASSED tap/tests/test_main.py::TestMain::test_build_suite_from_stdin PASSED tap/tests/test_main.py::TestMain::test_build_suite_from_stdin_dash PASSED tap/tests/test_main.py::TestMain::test_exits_with_error PASSED tap/tests/test_main.py::TestMain::test_get_successful_status PASSED tap/tests/test_main.py::TestMain::test_when_no_pipe_to_stdin PASSED tap/tests/test_main.py::TestMainModule::test_main_set_to_stream PASSED tap/tests/test_parser.py::TestParser::test_after_hash_is_not_description PASSED tap/tests/test_parser.py::TestParser::test_bail_out_line PASSED tap/tests/test_parser.py::TestParser::test_diagnostic_line PASSED tap/tests/test_parser.py::TestParser::test_errors_on_old_version PASSED tap/tests/test_parser.py::TestParser::test_finds_description PASSED tap/tests/test_parser.py::TestParser::test_finds_directive PASSED tap/tests/test_parser.py::TestParser::test_finds_not_ok PASSED tap/tests/test_parser.py::TestParser::test_finds_number PASSED tap/tests/test_parser.py::TestParser::test_finds_ok PASSED tap/tests/test_parser.py::TestParser::test_finds_plan PASSED tap/tests/test_parser.py::TestParser::test_finds_plan_with_skip PASSED tap/tests/test_parser.py::TestParser::test_finds_skip PASSED tap/tests/test_parser.py::TestParser::test_finds_todo PASSED tap/tests/test_parser.py::TestParser::test_finds_version PASSED tap/tests/test_parser.py::TestParser::test_ignores_plan_with_any_non_skip_directive PASSED tap/tests/test_parser.py::TestParser::test_malformed_yaml PASSED tap/tests/test_parser.py::TestParser::test_parse_empty_file PASSED tap/tests/test_parser.py::TestParser::test_parses_file PASSED tap/tests/test_parser.py::TestParser::test_parses_mixed PASSED tap/tests/test_parser.py::TestParser::test_parses_stdin PASSED tap/tests/test_parser.py::TestParser::test_parses_text PASSED tap/tests/test_parser.py::TestParser::test_parses_yaml PASSED tap/tests/test_parser.py::TestParser::test_parses_yaml_more_complex PASSED tap/tests/test_parser.py::TestParser::test_parses_yaml_no_association PASSED tap/tests/test_parser.py::TestParser::test_parses_yaml_no_end PASSED tap/tests/test_parser.py::TestParser::test_parses_yaml_no_start PASSED tap/tests/test_parser.py::TestParser::test_unrecognizable_line PASSED tap/tests/test_result.py::FakeTestCase::runTest PASSED tap/tests/test_result.py::TestTAPTestResult::test_adds_error PASSED tap/tests/test_result.py::TestTAPTestResult::test_adds_expected_failure PASSED tap/tests/test_result.py::TestTAPTestResult::test_adds_failure PASSED tap/tests/test_result.py::TestTAPTestResult::test_adds_skip PASSED tap/tests/test_result.py::TestTAPTestResult::test_adds_subtest_failure PASSED tap/tests/test_result.py::TestTAPTestResult::test_adds_subtest_success PASSED tap/tests/test_result.py::TestTAPTestResult::test_adds_success PASSED tap/tests/test_result.py::TestTAPTestResult::test_adds_unexpected_success PASSED tap/tests/test_rules.py::TestRules::test_errors_on_bail PASSED tap/tests/test_rules.py::TestRules::test_errors_plan_not_at_end PASSED tap/tests/test_rules.py::TestRules::test_errors_when_expected_tests_differs_from_actual PASSED tap/tests/test_rules.py::TestRules::test_handles_skipping_plan PASSED tap/tests/test_rules.py::TestRules::test_only_one_plan PASSED tap/tests/test_rules.py::TestRules::test_plan_line_two PASSED tap/tests/test_rules.py::TestRules::test_requires_plan PASSED tap/tests/test_rules.py::TestRules::test_tracks_plan_line PASSED tap/tests/test_runner.py::TestTAPTestRunner::test_bad_format_string PASSED tap/tests/test_runner.py::TestTAPTestRunner::test_has_tap_test_result PASSED tap/tests/test_runner.py::TestTAPTestRunner::test_runner_sets_tracker_for_streaming PASSED tap/tests/test_runner.py::TestTAPTestRunner::test_runner_stream_to_devnull_for_streaming PASSED tap/tests/test_runner.py::TestTAPTestRunner::test_runner_uses_combined PASSED tap/tests/test_runner.py::TestTAPTestRunner::test_runner_uses_format PASSED tap/tests/test_runner.py::TestTAPTestRunner::test_runner_uses_header PASSED tap/tests/test_runner.py::TestTAPTestRunner::test_runner_uses_outdir PASSED tap/tests/test_tracker.py::TestTracker::test_add_not_ok_writes_to_stream_while_streaming PASSED tap/tests/test_tracker.py::TestTracker::test_add_ok_writes_to_stream_while_streaming PASSED tap/tests/test_tracker.py::TestTracker::test_add_skip_writes_to_stream_while_streaming PASSED tap/tests/test_tracker.py::TestTracker::test_adds_not_ok PASSED tap/tests/test_tracker.py::TestTracker::test_adds_not_ok_with_diagnostics PASSED tap/tests/test_tracker.py::TestTracker::test_adds_ok PASSED tap/tests/test_tracker.py::TestTracker::test_adds_skip PASSED tap/tests/test_tracker.py::TestTracker::test_combined_results_in_one_file_tap_version_12 PASSED tap/tests/test_tracker.py::TestTracker::test_combined_results_in_one_file_tap_version_13 PASSED tap/tests/test_tracker.py::TestTracker::test_does_not_write_header PASSED tap/tests/test_tracker.py::TestTracker::test_generates_tap_reports_in_existing_outdir PASSED tap/tests/test_tracker.py::TestTracker::test_generates_tap_reports_in_new_outdir PASSED tap/tests/test_tracker.py::TestTracker::test_get_default_tap_file_path PASSED tap/tests/test_tracker.py::TestTracker::test_has_test_cases PASSED tap/tests/test_tracker.py::TestTracker::test_header_displayed_by_default PASSED tap/tests/test_tracker.py::TestTracker::test_header_set_by_init PASSED tap/tests/test_tracker.py::TestTracker::test_individual_report_has_no_plan_when_combined PASSED tap/tests/test_tracker.py::TestTracker::test_results_not_combined_by_default PASSED tap/tests/test_tracker.py::TestTracker::test_sanitizes_tap_file_path PASSED tap/tests/test_tracker.py::TestTracker::test_streaming_does_not_write_files PASSED tap/tests/test_tracker.py::TestTracker::test_streaming_writes_plan PASSED tap/tests/test_tracker.py::TestTracker::test_streaming_writes_tap_version_13 PASSED tap/tests/test_tracker.py::TestTracker::test_tracker_does_not_stream_by_default PASSED tap/tests/test_tracker.py::TestTracker::test_tracker_has_stream PASSED tap/tests/test_tracker.py::TestTracker::test_tracks_class PASSED tap/tests/test_tracker.py::TestTracker::test_write_plan_first_combined PASSED tap/tests/test_tracker.py::TestTracker::test_write_plan_first_not_combined PASSED tap/tests/test_tracker.py::TestTracker::test_write_plan_first_streaming PASSED tap/tests/test_tracker.py::TestTracker::test_write_plan_immediate_streaming ============================= 114 passed in 0.18s ==============================
Test errors Included
Test report (JUnit) Included
<?xml version="1.0" encoding="utf-8"?><testsuites><testsuite name="pytest" errors="0" failures="0" skipped="0" tests="114" time="0.182" timestamp="2026-11-14T03:25:35.272768+00:00" hostname="c474f45ef3a5"><testcase classname="tap.tests.test_adapter.TestAdapter" name="test_adapter_has_filename" time="0.000" /><testcase classname="tap.tests.test_adapter.TestAdapter" name="test_handles_not_ok_todo_test_line" time="0.000" /><testcase classname="tap.tests.test_adapter.TestAdapter" name="test_handles_ok_test_line" time="0.000" /><testcase classname="tap.tests.test_adapter.TestAdapter" name="test_handles_ok_todo_test_line" time="0.000" /><testcase classname="tap.tests.test_adapter.TestAdapter" name="test_handles_skip_test_line" time="0.000" /><testcase classname="tap.tests.test_directive.TestDirective" name="test_finds_simplest_skip" time="0.000" /><testcase classname="tap.tests.test_directive.TestDirective" name="test_finds_simplest_todo" time="0.000" /><testcase classname="tap.tests.test_directive.TestDirective" name="test_finds_skip" time="0.000" /><testcase classname="tap.tests.test_directive.TestDirective" name="test_finds_todo" time="0.000" /><testcase classname="tap.tests.test_directive.TestDirective" name="test_skip_at_beginning" time="0.000" /><testcase classname="tap.tests.test_directive.TestDirective" name="test_todo_has_boundary" time="0.000" /><testcase classname="tap.tests.test_formatter.TestFormatter" name="test_format_exception_as_diagnostics" time="0.000" /><testcase classname="tap.tests.test_formatter.TestFormatter" name="test_formats_as_diagnostics" time="0.000" /><testcase classname="tap.tests.test_line.TestLine" name="test_line_requires_category" time="0.000" /><testcase classname="tap.tests.test_line.TestResult" name="test_category" time="0.000" /><testcase classname="tap.tests.test_line.TestResult" name="test_ok" time="0.000" /><testcase classname="tap.tests.test_line.TestResult" name="test_str_diagnostics" time="0.000" /><testcase classname="tap.tests.test_line.TestResult" name="test_str_directive" time="0.000" /><testcase classname="tap.tests.test_line.TestResult" name="test_str_not_ok" time="0.000" /><testcase classname="tap.tests.test_line.TestResult" name="test_str_ok" time="0.000" /><testcase classname="tap.tests.test_loader.TestLoader" name="test_errors_with_multiple_version_lines" time="0.000" /><testcase classname="tap.tests.test_loader.TestLoader" name="test_errors_with_version_not_on_first_line" time="0.000" /><testcase classname="tap.tests.test_loader.TestLoader" name="test_file_does_not_exist" time="0.000" /><testcase classname="tap.tests.test_loader.TestLoader" name="test_handles_directory" time="0.000" /><testcase classname="tap.tests.test_loader.TestLoader" name="test_handles_file" time="0.000" /><testcase classname="tap.tests.test_loader.TestLoader" name="test_loads_from_stream" time="0.000" /><testcase classname="tap.tests.test_loader.TestLoader" name="test_skip_plan_aborts_loading" time="0.000" /><testcase classname="tap.tests.test_main.TestMain" name="test_build_suite_from_stdin" time="0.000" /><testcase classname="tap.tests.test_main.TestMain" name="test_build_suite_from_stdin_dash" time="0.001" /><testcase classname="tap.tests.test_main.TestMain" name="test_exits_with_error" time="0.001" /><testcase classname="tap.tests.test_main.TestMain" name="test_get_successful_status" time="0.000" /><testcase classname="tap.tests.test_main.TestMain" name="test_when_no_pipe_to_stdin" time="0.001" /><testcase classname="tap.tests.test_main.TestMainModule" name="test_main_set_to_stream" time="0.001" /><testcase classname="tap.tests.test_parser.TestParser" name="test_after_hash_is_not_description" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_bail_out_line" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_diagnostic_line" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_errors_on_old_version" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_finds_description" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_finds_directive" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_finds_not_ok" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_finds_number" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_finds_ok" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_finds_plan" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_finds_plan_with_skip" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_finds_skip" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_finds_todo" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_finds_version" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_ignores_plan_with_any_non_skip_directive" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_malformed_yaml" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_parse_empty_file" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_parses_file" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_parses_mixed" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_parses_stdin" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_parses_text" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_parses_yaml" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_parses_yaml_more_complex" time="0.001" /><testcase classname="tap.tests.test_parser.TestParser" name="test_parses_yaml_no_association" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_parses_yaml_no_end" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_parses_yaml_no_start" time="0.000" /><testcase classname="tap.tests.test_parser.TestParser" name="test_unrecognizable_line" time="0.000" /><testcase classname="tap.tests.test_result.FakeTestCase" name="runTest" time="0.000" /><testcase classname="tap.tests.test_result.TestTAPTestResult" name="test_adds_error" time="0.000" /><testcase classname="tap.tests.test_result.TestTAPTestResult" name="test_adds_expected_failure" time="0.000" /><testcase classname="tap.tests.test_result.TestTAPTestResult" name="test_adds_failure" time="0.000" /><testcase classname="tap.tests.test_result.TestTAPTestResult" name="test_adds_skip" time="0.000" /><testcase classname="tap.tests.test_result.TestTAPTestResult" name="test_adds_subtest_failure" time="0.000" /><testcase classname="tap.tests.test_result.TestTAPTestResult" name="test_adds_subtest_success" time="0.000" /><testcase classname="tap.tests.test_result.TestTAPTestResult" name="test_adds_success" time="0.000" /><testcase classname="tap.tests.test_result.TestTAPTestResult" name="test_adds_unexpected_success" time="0.000" /><testcase classname="tap.tests.test_rules.TestRules" name="test_errors_on_bail" time="0.000" /><testcase classname="tap.tests.test_rules.TestRules" name="test_errors_plan_not_at_end" time="0.000" /><testcase classname="tap.tests.test_rules.TestRules" name="test_errors_when_expected_tests_differs_from_actual" time="0.000" /><testcase classname="tap.tests.test_rules.TestRules" name="test_handles_skipping_plan" time="0.000" /><testcase classname="tap.tests.test_rules.TestRules" name="test_only_one_plan" time="0.000" /><testcase classname="tap.tests.test_rules.TestRules" name="test_plan_line_two" time="0.000" /><testcase classname="tap.tests.test_rules.TestRules" name="test_requires_plan" time="0.000" /><testcase classname="tap.tests.test_rules.TestRules" name="test_tracks_plan_line" time="0.000" /><testcase classname="tap.tests.test_runner.TestTAPTestRunner" name="test_bad_format_string" time="0.001" /><testcase classname="tap.tests.test_runner.TestTAPTestRunner" name="test_has_tap_test_result" time="0.000" /><testcase classname="tap.tests.test_runner.TestTAPTestRunner" name="test_runner_sets_tracker_for_streaming" time="0.000" /><testcase classname="tap.tests.test_runner.TestTAPTestRunner" name="test_runner_stream_to_devnull_for_streaming" time="0.000" /><testcase classname="tap.tests.test_runner.TestTAPTestRunner" name="test_runner_uses_combined" time="0.000" /><testcase classname="tap.tests.test_runner.TestTAPTestRunner" name="test_runner_uses_format" time="0.000" /><testcase classname="tap.tests.test_runner.TestTAPTestRunner" name="test_runner_uses_header" time="0.000" /><testcase classname="tap.tests.test_runner.TestTAPTestRunner" name="test_runner_uses_outdir" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_add_not_ok_writes_to_stream_while_streaming" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_add_ok_writes_to_stream_while_streaming" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_add_skip_writes_to_stream_while_streaming" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_adds_not_ok" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_adds_not_ok_with_diagnostics" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_adds_ok" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_adds_skip" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_combined_results_in_one_file_tap_version_12" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_combined_results_in_one_file_tap_version_13" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_does_not_write_header" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_generates_tap_reports_in_existing_outdir" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_generates_tap_reports_in_new_outdir" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_get_default_tap_file_path" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_has_test_cases" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_header_displayed_by_default" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_header_set_by_init" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_individual_report_has_no_plan_when_combined" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_results_not_combined_by_default" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_sanitizes_tap_file_path" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_streaming_does_not_write_files" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_streaming_writes_plan" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_streaming_writes_tap_version_13" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_tracker_does_not_stream_by_default" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_tracker_has_stream" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_tracks_class" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_write_plan_first_combined" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_write_plan_first_not_combined" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_write_plan_first_streaming" time="0.000" /><testcase classname="tap.tests.test_tracker.TestTracker" name="test_write_plan_immediate_streaming" time="0.000" /></testsuite></testsuites>
Agent log Included
[ 0.0s] 📋 System Prompt: You are a principal Python software engineer resolving a repository issue in `/workspace`.
[ 0.0s] 🎯 Task Prompt: You are evaluating a software engineering task for repository python-tap/tappy.
[ 18.4s] 💭 (553 chars) "The user is reporting a bug in `tap.parser._extract_yaml_block()` where newlines are
incorrectly added to multi-line str..."
[ 18.4s] 🔧 run_command (21 lines) python3 - <<'PY'
[ 18.6s] → ['', 'this is a multiline', '', 'string but with tap', '', 'somehow blank lines', '', 'are added to
it.']
[ 24.6s] 💭 (335 chars) "The reproduction script confirms the issue. The output is `['', 'this is a multiline', '',
'string but with tap', '', 's..."
[ 24.6s] 🔧 run_command grep -n "def _extract_yaml_block" tap/parser.py
[ 24.6s] → 177: def _extract_yaml_block(self, indent, fh):
[ 28.2s] 💭 (70 chars) "Now I will read the `_extract_yaml_block` function in `tap/parser.py`."
[ 28.2s] 📖 read_file (tap/parser.py)
[ 28.2s] ✓ {'status': 'ok', 'filepath': 'tap/parser.py', 'content': ' def _extract_yaml_block(self, indent,
fh):\n """Ext…
[ 63.1s] 💭 (1743 chars) "The code is:
```python
def _extract_yaml_block(self, indent, fh):
"""Extract a raw yaml block from a file ha..."
[ 63.1s] 🔧 run_command grep "_extract" tap/parser.py
[ 63.2s] → concat_yaml = self._extract_yaml_block(indent, fh)
[ 69.9s] 💭 (294 chars) "Only `_extract_yaml_block` seems to be doing this.
Wait, let's check if `fh` is something like a file object or a list ..."
[ 69.9s] 🔧 run_command grep -n "def parse_text" tap/parser.py
[ 69.9s] → 79: def parse_text(self, text):
[ 72.2s] 💭 (42 chars) "Reading `parse_text` and how it uses `fh`."
[ 72.2s] 📖 read_file (tap/parser.py)
[ 72.2s] ✓ {'status': 'ok', 'filepath': 'tap/parser.py', 'content': ' def parse_text(self, text):\n
"""Parse a string con…
[ 81.5s] 💭 (510 chars) "In `parse` method:
```python
for line in fh_new:
yield self.parse_line(line.rstrip(), fh_new..."
[ 81.5s] 🔧 run_command grep -n "def _parse_result" tap/parser.py
[ 81.5s] → 152: def _parse_result(self, ok, match, fh=None):
[ 84.0s] 💭 (24 chars) "Reading `_parse_result`."
[ 84.0s] 📖 read_file (tap/parser.py)
[ 84.1s] ✓ {'status': 'ok', 'filepath': 'tap/parser.py', 'content': ' def _parse_result(self, ok, match,
fh=None):\n """P…
[ 203.5s] 💭 (5197 chars) "So `_extract_yaml_block` is called with `fh`.
`fh` in `parse` is `fh_new = peekable(itertools.chain([first_line], fh))`...."
[ 203.5s] 🔧 run_command (40 lines) python3 - <<'PY'
[ 203.6s] → ['', 'this is a multiline', '', 'string but with tap', '', 'somehow blank lines', '', 'are added to
it.']
[ 289.5s] 💭 (3999 chars) "Wait, I noticed something in the output:
`['', 'this is a multiline', '', 'string but with tap', '', 'somehow blank line..."
[ 289.5s] 🔧 run_command (10 lines) python3 - <<'PY'
[ 289.6s] → error (exit 0):
[ 301.3s] 💭 (72 chars) "Ah, f-string restriction in some Python versions. Let's use `.format()`."
[ 301.3s] 🔧 run_command (10 lines) python3 - <<'PY'
[ 301.4s] → s: 'line1\n'
[ 330.6s] 💭 (1441 chars) "So `.rstrip('\r\n')` is safer.
Wait, I should check if `rstrip('\r\n')` would remove too much.
If the line was `" text..."
[ 330.6s] ✏️ edit_file (tap/parser.py)
[ 330.8s] ✓ {'status': 'ok', 'filepath': 'tap/parser.py', 'occurrences': 1, 'strategy': 'exact', 'diff': '---
a/tap/parser.py\n+++ b…
[ 338.0s] 💭 (38 chars) "Now run the reproduction script again."
[ 338.0s] 🔧 run_command (21 lines) python3 - <<'PY'
[ 338.0s] → ['this is a multiline', 'string but with tap', 'somehow blank lines', 'are added to it.']
[ 343.8s] 💭 (198 chars) "Perfect! The output is now as expected: `['this is a multiline', 'string but with tap',
'somehow blank lines', 'are adde..."
[ 343.8s] 🔧 run_command pytest tap/tests/test_parser.py -q --tb=short --no-header
[ 344.2s] → ........................... [100%]
[ 348.2s] 💭 (83 chars) "All tests in `tap/tests/test_parser.py` passed.
I'll run all tests just to be sure."
[ 348.2s] 🔧 run_command pytest tap/tests/ -q --tb=short --no-header
[ 348.4s] → ........................................................................ [ 63%]
[ 360.0s] 💭 (430 chars) "All tests passed.
Let's double check if there are any other similar patterns in the codebase that I missed.
I only sear..."
[ 360.0s] 🔧 run_command grep -rn "_extract" tap/
[ 360.0s] → tap/parser.py:168: concat_yaml = self._extract_yaml_block(indent, fh)
[ 363.9s] 💭 (154 chars) "Only `_extract_yaml_block` in `tap/parser.py`.
I'll check if there are other ways YAML blocks are extracted.
I'll searc..."
[ 363.9s] 🔧 run_command grep "\.join(" tap/parser.py
[ 363.9s] → return "\n".join(raw_yaml)
[ 372.1s] 💭 (352 chars) "Only one `.join` in `tap/parser.py`.
I'm confident with the fix.
One last check: the problem statement mentioned "addi..."
[ 372.1s] 🔧 run_command git status --short && git diff
[ 372.1s] → M tap/parser.py
[ 374.3s] 💭 (50 chars) "The diff looks clean.
I will now submit the patch."
[ 374.3s] 🤖 submit_patch
[ 374.4s] → submit_patch: {"status": "ok", "patch_size": 586, "files_changed": 1}
[ 385.2s] 💭 (220 chars) "I have fixed the bug by adding `.rstrip('\r\n')` to the lines extracted in
`_extract_yaml_block`. This prevents unwanted..."
[ 385.2s] ✅ Agent finished: The bug was caused by `_extract_yaml_block` joining lines with `\n` while the lines
themselves still contained their trailing newline characters. This resulted in empty lines being inserted into multi...
Native result row
{
"agent_error": null,
"duration_seconds": 390.07,
"error": null,
"grade": {
"collected_tests": 114,
"competition_junit_ok": true,
"error": null,
"required_issues_count": 0,
"resolved": true,
"status_counts": {
"PASSED": 114
},
"strict_clean_patch": true,
"test_exit_code": 0
},
"instance_id": "python-tap__tappy-112",
"pass_idx": 0,
"patch_chars": 586,
"phase1_seconds": 389.01,
"repo": "python-tap/tappy",
"request_log_path": "/kaggle-root/working/r31/rollouts_X/requests/python-tap__tappy-112__p0__r0.jsonl",
"resolved": true,
"rollout_idx": 0,
"run_key": "python-tap__tappy-112__p0__r0",
"strict_clean_patch": true,
"tool_calls": 18,
"total_llm_calls": 20,
"trace_path": "/kaggle-root/working/r31/rollouts_X/traces/trace_python-tap__tappy-112__p0__r0.json"
}