Source code
Revision control
Copy as Markdown
Other Tools
import sys
import pytest
from _pytest.pytester import Pytester
if sys.version_info < (3, 8):
pytest.skip("unraisableexception plugin needs Python>=3.8", allow_module_level=True)
@pytest.mark.filterwarnings("default::pytest.PytestUnraisableExceptionWarning")
def test_unraisable(pytester: Pytester) -> None:
pytester.makepyfile(
test_it="""
class BrokenDel:
def __del__(self):
raise ValueError("del is broken")
def test_it():
obj = BrokenDel()
del obj
def test_2(): pass
"""
)
result = pytester.runpytest()
assert result.ret == 0
assert result.parseoutcomes() == {"passed": 2, "warnings": 1}
result.stdout.fnmatch_lines(
[
"*= warnings summary =*",
"test_it.py::test_it",
" * PytestUnraisableExceptionWarning: Exception ignored in: <function BrokenDel.__del__ at *>",
" ",
" Traceback (most recent call last):",
" ValueError: del is broken",
" ",
" warnings.warn(pytest.PytestUnraisableExceptionWarning(msg))",
]
)
@pytest.mark.filterwarnings("default::pytest.PytestUnraisableExceptionWarning")
def test_unraisable_in_setup(pytester: Pytester) -> None:
pytester.makepyfile(
test_it="""
import pytest
class BrokenDel:
def __del__(self):
raise ValueError("del is broken")
@pytest.fixture
def broken_del():
obj = BrokenDel()
del obj
def test_it(broken_del): pass
def test_2(): pass
"""
)
result = pytester.runpytest()
assert result.ret == 0
assert result.parseoutcomes() == {"passed": 2, "warnings": 1}
result.stdout.fnmatch_lines(
[
"*= warnings summary =*",
"test_it.py::test_it",
" * PytestUnraisableExceptionWarning: Exception ignored in: <function BrokenDel.__del__ at *>",
" ",
" Traceback (most recent call last):",
" ValueError: del is broken",
" ",
" warnings.warn(pytest.PytestUnraisableExceptionWarning(msg))",
]
)
@pytest.mark.filterwarnings("default::pytest.PytestUnraisableExceptionWarning")
def test_unraisable_in_teardown(pytester: Pytester) -> None:
pytester.makepyfile(
test_it="""
import pytest
class BrokenDel:
def __del__(self):
raise ValueError("del is broken")
@pytest.fixture
def broken_del():
yield
obj = BrokenDel()
del obj
def test_it(broken_del): pass
def test_2(): pass
"""
)
result = pytester.runpytest()
assert result.ret == 0
assert result.parseoutcomes() == {"passed": 2, "warnings": 1}
result.stdout.fnmatch_lines(
[
"*= warnings summary =*",
"test_it.py::test_it",
" * PytestUnraisableExceptionWarning: Exception ignored in: <function BrokenDel.__del__ at *>",
" ",
" Traceback (most recent call last):",
" ValueError: del is broken",
" ",
" warnings.warn(pytest.PytestUnraisableExceptionWarning(msg))",
]
)
@pytest.mark.filterwarnings("error::pytest.PytestUnraisableExceptionWarning")
def test_unraisable_warning_error(pytester: Pytester) -> None:
pytester.makepyfile(
test_it="""
class BrokenDel:
def __del__(self) -> None:
raise ValueError("del is broken")
def test_it() -> None:
obj = BrokenDel()
del obj
def test_2(): pass
"""
)
result = pytester.runpytest()
assert result.ret == pytest.ExitCode.TESTS_FAILED
assert result.parseoutcomes() == {"passed": 1, "failed": 1}