| name | test-generation-pipeline |
| description | Generate pytest test skeletons for a Python module by AST parsing. Extracts function signatures and produces parametrised tests, edge-case stubs, and fixture hints. Pure Python, no LLM dependency. |
Test Generation Pipeline
Use this skill when a tester agent needs a quick pytest scaffold for a module. It does not write deep behavioural tests — it produces the mechanical 80%: imports, parametrised signatures, edge-case placeholders, and fixture hints.
Inputs
target_path (required, str) — path to a .py file.output_path (required, str) — where to write the generated test file.style (optional, str) — pytest (default) or unittest.
Outputs
{
"test_path": "/path/to/test_foo.py",
"functions_tested": ["add", "subtract", "divide"],
"test_count": 7,
"fixture_hints": ["tmp_path", "monkeypatch"],
"notes": "Edge cases marked with # TODO"
}
What it generates
| Category | Behaviour |
|---|
| Imports | import target module + import pytest |
| Signature mapping | One test_<func> per public function |
| Parametrised cases | 2–3 basic cases per function (happy path + zero/empty) |
| Edge stubs | # TODO: edge case — overflow, NaN, unicode, etc. |
| Fixture hints | Suggests fixtures when file does I/O or env vars |
It is a starting scaffold — the tester agent must fill in meaningful assertions.
