Fix cross install warning expectation

[leynos]

Summary

• update the Windows failure test to read the warning from stderr
• assert the exact fallback message emitted when cross installation fails

Testing

• make test

---

https://chatgpt.com/codex/tasks/task_e_68d2e85bd0008322bd696c0ccc7a8381

Summary by Sourcery

Sanitize and enforce RUNTIME_PROBE_TIMEOUT values with fallback and warnings, emit stderr warnings on runtime probe timeouts, fix cross-install warning assertions to read from stderr, guard Windows-only setup action, and refine tests and build formatting target.

New Features:

• Introduce sanitized PROBE_TIMEOUT logic with warnings for invalid, non-positive, or excessive RUNTIME_PROBE_TIMEOUT values

Bug Fixes:

• Fix cross-install tests to read and assert exact fallback warning from stderr

Enhancements:

• Add _reload_runtime_module test helper and expand tests for probe timeout scenarios and stderr warnings
• Improve test_utils assertions with descriptive messages
• Update Makefile fmt target to include Ruff auto-fixes and refine conftest return type annotations

Deployment:

• Guard setup-windows-gnu action to only run on Windows and include pkg-config in MinGW install

[sourcery-ai]

Reviewer's Guide

This PR refactors the probe timeout mechanism to validate and cap values with stderr warnings, enhances runtime availability checks to emit warnings on timeouts, and updates tests to capture and assert stderr output for cross install and timeout scenarios, along with minor CI and utility test improvements.

Sequence diagram for runtime probe timeout validation and warning emission

sequenceDiagram
    participant Env as Environment
    participant Runtime as "runtime.py (_get_probe_timeout)"
    participant Typer as "typer.echo()"
    Env->>Runtime: Get RUNTIME_PROBE_TIMEOUT
    alt Value is not set
        Runtime->>Runtime: Use default timeout (10s)
    else Value is not integer
        Runtime->>Typer: Emit warning to stderr (invalid value)
        Runtime->>Runtime: Use default timeout (10s)
    else Value <= 0
        Runtime->>Typer: Emit warning to stderr (must be positive)
        Runtime->>Runtime: Use default timeout (10s)
    else Value > 300
        Runtime->>Typer: Emit warning to stderr (exceeds max)
        Runtime->>Runtime: Use capped timeout (300s)
    else Valid value
        Runtime->>Runtime: Use provided timeout
    end

Loading

File-Level Changes

Change	Details	Files
Sanitize and warn on probe timeout configuration	Extract timeout logic into a new _get_probe_timeout function Warn and fallback on invalid, non-positive, or too large values Replace static PROBE_TIMEOUT assignment with a call to _get_probe_timeout()	.github/actions/rust-build-release/src/runtime.py .github/actions/rust-build-release/tests/test_runtime.py
Emit stderr warnings on runtime info/security probe timeouts	Add typer.echo in TimeoutExpired handler for info probe Add typer.echo in TimeoutExpired handler for security probe	.github/actions/rust-build-release/src/runtime.py .github/actions/rust-build-release/tests/test_runtime.py
Capture and assert stderr warnings in test_runtime	Introduce _reload_runtime_module helper for isolated imports Monkeypatch typer.echo to collect (message, err) pairs Assert that warning messages are emitted on stderr in existing timeout tests	.github/actions/rust-build-release/tests/test_runtime.py
Harden cross-install failure tests and expectations	Read warning from capsys.err and assert exact fallback message Ensure no --git or --tag flags are used in failure paths Replace dict-based release_called with list-based call args assertion	.github/actions/rust-build-release/tests/test_cross_install.py
Add Windows runner guard in setup action	Fail early with error if RUNNER_OS is not Windows	.github/actions/setup-windows-gnu/action.yml
Improve utility tests and linting targets	Add descriptive messages to assertions in test_utils Adjust conftest return types to typ.Self Update Makefile fmt target to include Ruff lint auto-fixes	.github/actions/rust-build-release/tests/test_utils.py conftest.py Makefile

Possibly linked issues

• Use cmd-mox to stub rust build command tests #92: The PR updates runtime detection logic to explicitly handle and report Docker command timeouts on Windows CI by outputting warnings to stderr, directly addressing the issue's CI failures.

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[leynos]

@sourcery-ai review

[sourcery-ai]

Hey there - I've reviewed your changes and found some issues that need to be addressed.

• Consider extracting the repeated fake_echo and message capturing logic into a reusable pytest fixture to reduce duplication.
• Reloading modules with _reload_runtime_module injects new entries into sys.modules; consider cleaning them up after each test to avoid side effects across runs.
• The invalid/zero/capped probe timeout tests share the same structure and could be combined into a single parametrized test to DRY up the suite.

Prompt for AI Agents

Please address the comments from this code review:

## Overall Comments
- Consider extracting the repeated fake_echo and message capturing logic into a reusable pytest fixture to reduce duplication.
- Reloading modules with _reload_runtime_module injects new entries into sys.modules; consider cleaning them up after each test to avoid side effects across runs.
- The invalid/zero/capped probe timeout tests share the same structure and could be combined into a single parametrized test to DRY up the suite.

## Individual Comments

### Comment 1
<location> `.github/actions/rust-build-release/tests/test_runtime.py:97` </location>
<code_context>
     _patch_run_validated_timeout(runtime_module, harness)

     assert runtime_module.runtime_available("docker") is False
+    assert any(err for _, err in messages), "expected stderr warning to be emitted"
+    assert any(
+        "docker info probe exceeded" in msg and str(runtime_module.PROBE_TIMEOUT) in msg
+        for msg, err in messages
+        if err
+    ), "docker info probe timeout warning missing"


</code_context>

<issue_to_address>
**suggestion (testing):** Consider adding a test for OSError handling in runtime_available.

A test simulating OSError would ensure this error path is covered and confirm that no inappropriate warning is emitted.

```suggestion
    assert runtime_module.runtime_available("docker") is False

def test_runtime_available_oserror(monkeypatch, harness, runtime_module):
    """Test that OSError in runtime_available does not emit a warning."""
    harness.patch_attr("ensure_allowed_executable", lambda path, allowed: path)
    messages: list[tuple[str, bool]] = []

    def fake_echo(message: str, *, err: bool = False) -> None:
        messages.append((message, err))

    monkeypatch.setattr(runtime_module.typer, "echo", fake_echo)

    def fake_run_validated(*args, **kwargs):
        raise OSError("simulated OSError")

    monkeypatch.setattr(runtime_module, "run_validated", fake_run_validated)

    assert runtime_module.runtime_available("docker") is False
    # Ensure no error message was emitted
    assert not any(err for _, err in messages), "OSError should not emit a warning"
```
</issue_to_address>

### Comment 2
<location> `.github/actions/rust-build-release/src/runtime.py:54` </location>
<code_context>
+_MAX_PROBE_TIMEOUT = 300
+
+
+def _get_probe_timeout() -> int:
+    """Return the sanitized probe timeout for runtime detection."""
+    raw = os.environ.get("RUNTIME_PROBE_TIMEOUT")
</code_context>

<issue_to_address>
**issue (complexity):** Consider refactoring the timeout handling and probe execution logic into shared helper functions to reduce code duplication.

```markdown
You can cut down the duplication in both the timeout‐sanitizer and the two `run_validated` blocks by

 1. collapsing your min/max clamping into one expression with a single warning on overflow,  
 2. factoring out the “run & catch” logic into a shared `_run_probe` helper.

Example changes:

```python
_DEFAULT_PROBE_TIMEOUT = 10
_MAX_PROBE_TIMEOUT     = 300

def _get_probe_timeout() -> int:
    raw = os.environ.get("RUNTIME_PROBE_TIMEOUT")
    try:
        v = int(raw) if raw is not None else _DEFAULT_PROBE_TIMEOUT
    except ValueError:
        typer.echo(f"::warning:: invalid RUNTIME_PROBE_TIMEOUT={raw!r}, using {_DEFAULT_PROBE_TIMEOUT}s",
                   err=True)
        return _DEFAULT_PROBE_TIMEOUT

    # clamp into [_DEFAULT_PROBE_TIMEOUT, _MAX_PROBE_TIMEOUT]
    clamped = max(_DEFAULT_PROBE_TIMEOUT, min(v, _MAX_PROBE_TIMEOUT))
    if clamped != v:
        typer.echo(
            f"::warning:: RUNTIME_PROBE_TIMEOUT={v}s {'capped' if v>clamped else 'raised'} to {clamped}s",
            err=True,
        )
    return clamped
```

```python
def _run_probe(exec_path: str, name: str, args: list[str], *,
               cwd: Path | str | None = None, **kw) -> CompletedProcess | None:
    try:
        return run_validated(
            exec_path, args,
            allowed_names=(name, f"{name}.exe"),
            timeout=PROBE_TIMEOUT,
            cwd=cwd,
            **kw,
        )
    except subprocess.TimeoutExpired:
        typer.echo(
            f"::warning:: {name} {' '.join(args)} probe "
            f"exceeded {PROBE_TIMEOUT}s; treating as unavailable",
            err=True,
        )
    except (OSError, subprocess.CalledProcessError):
        pass
    return None
```

Then in `runtime_available`:

```python
info = _run_probe(exec_path, name, ["info"], stdout=DEVNULL, stderr=DEVNULL, cwd=cwd)
if not info or info.returncode != 0:
    return False

if name == "podman":
    sec = _run_probe(
        exec_path,
        name,
        ["info", "--format", "{{json .Host.Security}}"],
        capture_output=True, text=True, check=True, cwd=cwd
    )
    if not sec:
        return False

    # ... follow with JSON-decode logic unchanged ...
```

This keeps the same warnings/semantics but centralizes your exception handling and timeout logic into one small helper.
</issue_to_address>

### Comment 3
<location> `.github/actions/rust-build-release/src/runtime.py:54` </location>
<code_context>
+_MAX_PROBE_TIMEOUT = 300
+
+
+def _get_probe_timeout() -> int:
+    """Return the sanitized probe timeout for runtime detection."""
+    raw = os.environ.get("RUNTIME_PROBE_TIMEOUT")
</code_context>

<issue_to_address>
**issue (review_instructions):** Add behavioural and unit tests for the new _get_probe_timeout function.

You introduced a new function, _get_probe_timeout, which contains logic for sanitizing and capping the probe timeout value. Add both behavioural and unit tests to verify its correct operation under various environment variable values, including invalid, negative, and excessive values.

<details>
<summary>Review instructions:</summary>

**Path patterns:** `**/*`

**Instructions:**
For any new feature or change to an existing feature, both behavioural *and* unit tests are required.

</details>
</issue_to_address>

### Comment 4
<location> `.github/actions/rust-build-release/src/runtime.py:108` </location>
<code_context>
         )
-    except (OSError, subprocess.TimeoutExpired):
+    except (OSError, subprocess.TimeoutExpired) as exc:
+        if isinstance(exc, subprocess.TimeoutExpired):
+            typer.echo(
+                "::warning:: "
</code_context>

<issue_to_address>
**issue (review_instructions):** Add tests to verify warning output when runtime probe times out.

You added logic to emit a warning when a runtime probe times out. Add behavioural tests to ensure this warning is emitted as expected when subprocess.TimeoutExpired is raised.

<details>
<summary>Review instructions:</summary>

**Path patterns:** `**/*`

**Instructions:**
For any new feature or change to an existing feature, both behavioural *and* unit tests are required.

</details>
</issue_to_address>

### Comment 5
<location> `.github/actions/rust-build-release/src/runtime.py:108` </location>
<code_context>
         )
-    except (OSError, subprocess.TimeoutExpired):
+    except (OSError, subprocess.TimeoutExpired) as exc:
+        if isinstance(exc, subprocess.TimeoutExpired):
+            typer.echo(
+                "::warning:: "
</code_context>

<issue_to_address>
**issue (review_instructions):** Add tests to verify warning output when security probe times out.

You added logic to emit a warning when a security probe times out. Add behavioural tests to ensure this warning is emitted as expected when subprocess.TimeoutExpired is raised during the security probe.

<details>
<summary>Review instructions:</summary>

**Path patterns:** `**/*`

**Instructions:**
For any new feature or change to an existing feature, both behavioural *and* unit tests are required.

</details>
</issue_to_address>

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[leynos]

@coderabbitai Have the following now been resolved?

• Consider extracting the repeated fake_echo and message capturing logic into a reusable pytest fixture to reduce duplication.
• Reloading modules with _reload_runtime_module injects new entries into sys.modules; consider cleaning them up after each test to avoid side effects across runs.
• The invalid/zero/capped probe timeout tests share the same structure and could be combined into a single parametrized test to DRY up the suite.

[coderabbitai]

Tip

For best results, initiate chat on the files or code changes.

🧩 Analysis chain

🏁 Script executed:

#!/bin/bash
# Find test files to examine the current implementation
fd -e py test

# Look for fake_echo usage patterns
rg -n "fake_echo" --type py

# Look for _reload_runtime_module usage
rg -n "_reload_runtime_module" --type py

# Look for probe timeout related tests
rg -n -C3 "probe.*timeout|timeout.*probe" --type py

# Look for sys.modules cleanup patterns
rg -n "sys\.modules" --type py

# Look for parametrized tests
rg -n "@pytest\.mark\.parametrize" --type py

Length of output: 99

---

🏁 Script executed:

#!/bin/bash
# Get a broader view of all Python files
fd -e py

# Check directory structure
find . -type d -name "*test*" -o -name "*Test*" 2>/dev/null

# Look for files with "test" in the name
fd test

# Examine conftest.py content
cat conftest.py

# Search more broadly for echo patterns
rg -n "echo" --type py

# Search for module reloading patterns
rg -n "reload" --type py -i

Length of output: 5368

---

🏁 Script executed:

#!/bin/bash
# Look at the test files in different directories
for test_dir in ./.github/actions/*/tests; do
    echo "=== Files in $test_dir ==="
    ls -la "$test_dir"
    echo
done

# Look for any Python test files
fd -e py . ./.github/actions/*/tests

# Search for fake_echo pattern more broadly
rg -n -C2 "fake.*echo|echo.*fake" --type py

# Search for _reload patterns
rg -n -C2 "_reload" --type py

# Search for timeout related tests
rg -n -C2 "timeout" --type py

# Look for pytest parametrize usage
rg -n -C2 "parametrize" --type py

Length of output: 10423

---

🏁 Script executed:

#!/bin/bash
# Examine the test files that are most likely to contain the patterns mentioned
cat ./.github/actions/rust-build-release/tests/test_runtime.py

echo "========================================="
echo "test_cross_install.py content:"
echo "========================================="

cat ./.github/actions/rust-build-release/tests/test_cross_install.py

# Look for specific patterns in these files
echo "========================================="
echo "Looking for fake_echo patterns:"
echo "========================================="
rg -n -A3 -B3 "fake.*echo|echo.*fake" ./.github/actions/rust-build-release/tests/

echo "========================================="
echo "Looking for _reload patterns:"
echo "========================================="
rg -n -A3 -B3 "_reload" ./.github/actions/rust-build-release/tests/

echo "========================================="
echo "Looking for parametrize patterns:"
echo "========================================="
rg -n -A3 -B3 "parametrize" ./.github/actions/rust-build-release/tests/

Length of output: 43913

---

@leynos Looking at the current codebase, here's the status of those suggestions:

---

🏁 Script executed:

#!/bin/bash
# Let's get a clearer view of the echo_recorder fixture usage
rg -n -A5 -B2 "echo_recorder" ./.github/actions/rust-build-release/tests/

# Check for sys.modules cleanup in _reload_runtime_module
rg -n -A10 -B2 "sys\.modules\.pop" ./.github/actions/rust-build-release/tests/

# Look at the parametrized test structure more clearly
rg -n -A15 "test_probe_timeout.*parametrize" ./.github/actions/rust-build-release/tests/

Length of output: 11253

---

Based on my examination of the codebase, here's the status of the three suggestions:

✅ RESOLVED: sys.modules cleanup

The _reload_runtime_module function properly cleans up sys.modules entries in a finally block:

def _reload_runtime_module(runtime_module: ModuleType, module_name: str) -> ModuleType:
    # ... module loading code ...
    try:
        module_spec.loader.exec_module(module)
    finally:
        sys.modules.pop(module_name, None)  # ✅ Cleanup implemented
    return module

✅ RESOLVED: Parametrised probe timeout tests

The invalid/zero/capped probe timeout tests have been combined into parametrised tests:

@pytest.mark.parametrize(
    ("env_value", "expected_kind", "message_fragment"),
    [
        pytest.param("not-a-number", "default", "Invalid RUNTIME_PROBE_TIMEOUT value", id="invalid"),
        pytest.param("0", "default", "0s raised to", id="zero"),
        pytest.param("-5", "default", "-5s raised to", id="negative"),
        pytest.param("999", "max", "999s capped to", id="capped"),
    ],
)
def test_probe_timeout_sanitization_warnings(...)

❌ NOT FULLY RESOLVED: fake_echo fixture extraction

While there's an echo_recorder fixture in test_runtime.py that's used consistently within that file, the test_cross_install.py file still contains inline fake_echo implementations:

# In test_cross_install.py - still duplicated
def fake_echo(message: str, *, err: bool = False) -> None:
    messages.append((message, err))

harness.monkeypatch.setattr(module.typer, "echo", fake_echo)

The echo_recorder fixture from test_runtime.py could be moved to a shared location (like conftest.py) and reused across all test files to eliminate this duplication.

Summary: Two out of three suggestions have been fully resolved. The fake_echo duplication still exists in test_cross_install.py and could benefit from using the centralised echo_recorder fixture.

[leynos]

@coderabbitai Has the following now been resolved?

❌ NOT FULLY RESOLVED: fake_echo fixture extraction

While there's an echo_recorder fixture in test_runtime.py that's used consistently within that file, the test_cross_install.py file still contains inline fake_echo implementations:

# In test_cross_install.py - still duplicated
def fake_echo(message: str, *, err: bool = False) -> None:
    messages.append((message, err))

harness.monkeypatch.setattr(module.typer, "echo", fake_echo)

The echo_recorder fixture from test_runtime.py could be moved to a shared location (like conftest.py) and reused across all test files to eliminate this duplication.

[coderabbitai]

Tip

For best results, initiate chat on the files or code changes.

🧩 Analysis chain

@leynos Looking at the current codebase:

❌ STILL NOT RESOLVED: fake_echo fixture extraction

The duplication issue persists. Here's what I found:

1. test_cross_install.py still contains inline fake_echo implementations:

def fake_echo(message: str, *, err: bool = False) -> None:
    messages.append((message, err))

2. test_runtime.py still has its own echo_recorder fixture:

@pytest.fixture
def echo_recorder(harness: Harness) -> EchoRecorder:
    # ... implementation

3. conftest.py does not contain any echo_recorder fixture - it only has the basic harness fixture.

The code duplication remains unaddressed. The echo_recorder fixture from test_runtime.py has not been moved to a shared location, and test_cross_install.py continues to use its inline fake_echo implementation.

Recommendation: Move the echo_recorder fixture from test_runtime.py to conftest.py and update test_cross_install.py to use it, eliminating the duplication.

---

🏁 Script executed:

#!/bin/bash
# Check current content of test_cross_install.py for fake_echo implementations
echo "=== Current test_cross_install.py content ==="
cat ./.github/actions/rust-build-release/tests/test_cross_install.py

echo -e "\n=== Checking for fake_echo patterns in test_cross_install.py ==="
rg -n -C3 "fake_echo" ./.github/actions/rust-build-release/tests/test_cross_install.py

echo -e "\n=== Checking if echo_recorder fixture exists in conftest.py ==="
rg -n -C5 "echo_recorder" ./.github/actions/rust-build-release/tests/conftest.py

echo -e "\n=== Checking echo_recorder in test_runtime.py ==="
rg -n -C5 "echo_recorder" ./.github/actions/rust-build-release/tests/test_runtime.py

Length of output: 22111

---

@leynos Looking at the current codebase based on the script results:

✅ RESOLVED: fake_echo fixture extraction

The duplication issue has been fully resolved! Here's the evidence:

1. ✅ echo_recorder fixture moved to conftest.py:

# In conftest.py (lines 151-156)
@pytest.fixture
def echo_recorder(
    monkeypatch: pytest.MonkeyPatch,
) -> cabc.Callable[[ModuleType], list[tuple[str, bool]]]:
    """Return a helper that patches ``typer.echo`` and records messages."""

2. ✅ No more inline fake_echo implementations in test_cross_install.py:

   • The rg -n -C3 "fake_echo" search returned empty results, confirming no duplication exists

3. ✅ test_cross_install.py now uses the shared fixture:

def test_install_cross_release_validates_binary(
    cross_module: ModuleType,
    module_harness: HarnessFactory,
    echo_recorder: typ.Callable[[ModuleType], list[tuple[str, bool]]],  # ✅ Using shared fixture
    tmp_path: Path,
) -> None:

4. ✅ Other tests use appropriate alternatives:
   • The Windows failure test uses capsys fixture instead, which is appropriate for stderr capture

The code duplication has been eliminated by moving the echo_recorder fixture to the shared conftest.py location, making it available to all test files in the directory.