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https://github.com/varun-r-mallya/Python-BPF.git
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104 lines
3.4 KiB
Python
104 lines
3.4 KiB
Python
"""
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pytest configuration for the PythonBPF test suite.
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Test discovery:
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All .py files under tests/passing_tests/ and tests/failing_tests/ are
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collected as parametrized BPF test cases.
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Markers applied automatically from test_config.toml:
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- xfail (strict=True): failing_tests/ entries that are expected to fail
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- skip: vmlinux tests when vmlinux.py is not importable
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Run the suite:
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pytest tests/ -v -m "not verifier" # IR + LLC only (no sudo)
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pytest tests/ -v --cov=pythonbpf # with coverage
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pytest tests/test_verifier.py -m verifier # kernel verifier (sudo required)
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"""
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import logging
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import pytest
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from tests.framework.collector import collect_all_test_files
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# ── vmlinux availability ────────────────────────────────────────────────────
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try:
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import vmlinux # noqa: F401
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VMLINUX_AVAILABLE = True
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except ImportError:
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VMLINUX_AVAILABLE = False
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# ── shared fixture: collected test cases ───────────────────────────────────
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def _all_cases():
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return collect_all_test_files()
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# ── pytest_generate_tests: parametrize on bpf_test_file ───────────────────
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def pytest_generate_tests(metafunc):
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if "bpf_test_file" in metafunc.fixturenames:
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cases = _all_cases()
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metafunc.parametrize(
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"bpf_test_file",
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[c.path for c in cases],
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ids=[c.rel_path for c in cases],
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)
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# ── pytest_collection_modifyitems: apply xfail / skip markers ─────────────
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def pytest_collection_modifyitems(items):
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case_map = {c.rel_path: c for c in _all_cases()}
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for item in items:
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# Resolve the test case from the parametrize ID embedded in the node id.
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# Node id format: tests/test_foo.py::test_bar[passing_tests/helpers/pid.py]
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case = None
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for bracket in (item.callspec.id,) if hasattr(item, "callspec") else ():
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case = case_map.get(bracket)
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break
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if case is None:
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continue
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# vmlinux skip
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if case.needs_vmlinux and not VMLINUX_AVAILABLE:
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item.add_marker(
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pytest.mark.skip(reason="vmlinux.py not available for current kernel")
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)
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continue
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# xfail (strict: XPASS counts as a test failure, alerting us to fixed bugs)
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if case.is_expected_fail:
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# Level "ir" → fails at IR generation: xfail both IR and LLC tests
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# Level "llc" → IR succeeds but LLC fails: only xfail the LLC test
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is_llc_test = item.nodeid.startswith("tests/test_llc_compilation.py")
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apply_xfail = (case.xfail_level == "ir") or (
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case.xfail_level == "llc" and is_llc_test
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)
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if apply_xfail:
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item.add_marker(
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pytest.mark.xfail(
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reason=case.xfail_reason,
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strict=True,
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raises=Exception,
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)
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)
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# ── caplog level fixture: capture ERROR+ from pythonbpf ───────────────────
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@pytest.fixture(autouse=True)
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def set_log_level(caplog):
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with caplog.at_level(logging.ERROR, logger="pythonbpf"):
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yield
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