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import sys
import pytest
from _pytest.pytester import Pytester
if sys.version_info < (3, 8):
pytest.skip("threadexception plugin needs Python>=3.8", allow_module_level=True)
@pytest.mark.filterwarnings("default::pytest.PytestUnhandledThreadExceptionWarning")
def test_unhandled_thread_exception(pytester: Pytester) -> None:
pytester.makepyfile(
test_it="""
import threading
def test_it():
def oops():
raise ValueError("Oops")
t = threading.Thread(target=oops, name="MyThread")
t.start()
t.join()
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",
" * PytestUnhandledThreadExceptionWarning: Exception in thread MyThread",
" ",
" Traceback (most recent call last):",
" ValueError: Oops",
" ",
" warnings.warn(pytest.PytestUnhandledThreadExceptionWarning(msg))",
]
)
@pytest.mark.filterwarnings("default::pytest.PytestUnhandledThreadExceptionWarning")
def test_unhandled_thread_exception_in_setup(pytester: Pytester) -> None:
pytester.makepyfile(
test_it="""
import threading
import pytest
@pytest.fixture
def threadexc():
def oops():
raise ValueError("Oops")
t = threading.Thread(target=oops, name="MyThread")
t.start()
t.join()
def test_it(threadexc): 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",
" * PytestUnhandledThreadExceptionWarning: Exception in thread MyThread",
" ",
" Traceback (most recent call last):",
" ValueError: Oops",
" ",
" warnings.warn(pytest.PytestUnhandledThreadExceptionWarning(msg))",
]
)
@pytest.mark.filterwarnings("default::pytest.PytestUnhandledThreadExceptionWarning")
def test_unhandled_thread_exception_in_teardown(pytester: Pytester) -> None:
pytester.makepyfile(
test_it="""
import threading
import pytest
@pytest.fixture
def threadexc():
def oops():
raise ValueError("Oops")
yield
t = threading.Thread(target=oops, name="MyThread")
t.start()
t.join()
def test_it(threadexc): 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",
" * PytestUnhandledThreadExceptionWarning: Exception in thread MyThread",
" ",
" Traceback (most recent call last):",
" ValueError: Oops",
" ",
" warnings.warn(pytest.PytestUnhandledThreadExceptionWarning(msg))",
]
)
@pytest.mark.filterwarnings("error::pytest.PytestUnhandledThreadExceptionWarning")
def test_unhandled_thread_exception_warning_error(pytester: Pytester) -> None:
pytester.makepyfile(
test_it="""
import threading
import pytest
def test_it():
def oops():
raise ValueError("Oops")
t = threading.Thread(target=oops, name="MyThread")
t.start()
t.join()
def test_2(): pass
"""
)
result = pytester.runpytest()
assert result.ret == pytest.ExitCode.TESTS_FAILED
assert result.parseoutcomes() == {"passed": 1, "failed": 1}