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test_reports.py
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test_reports.py
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# mypy: allow-untyped-defs
from __future__ import annotations
from typing import Sequence
from _pytest._code.code import ExceptionChainRepr
from _pytest._code.code import ExceptionRepr
from _pytest.config import Config
from _pytest.pytester import Pytester
from _pytest.python_api import approx
from _pytest.reports import CollectReport
from _pytest.reports import TestReport
import pytest
class TestReportSerialization:
def test_xdist_longrepr_to_str_issue_241(self, pytester: Pytester) -> None:
"""Regarding issue pytest-xdist#241.
This test came originally from test_remote.py in xdist (ca03269).
"""
pytester.makepyfile(
"""
def test_a(): assert False
def test_b(): pass
"""
)
reprec = pytester.inline_run()
reports = reprec.getreports("pytest_runtest_logreport")
assert len(reports) == 6
test_a_call = reports[1]
assert test_a_call.when == "call"
assert test_a_call.outcome == "failed"
assert test_a_call._to_json()["longrepr"]["reprtraceback"]["style"] == "long"
test_b_call = reports[4]
assert test_b_call.when == "call"
assert test_b_call.outcome == "passed"
assert test_b_call._to_json()["longrepr"] is None
def test_xdist_report_longrepr_reprcrash_130(self, pytester: Pytester) -> None:
"""Regarding issue pytest-xdist#130
This test came originally from test_remote.py in xdist (ca03269).
"""
reprec = pytester.inline_runsource(
"""
def test_fail():
assert False, 'Expected Message'
"""
)
reports = reprec.getreports("pytest_runtest_logreport")
assert len(reports) == 3
rep = reports[1]
added_section = ("Failure Metadata", "metadata metadata", "*")
assert isinstance(rep.longrepr, ExceptionRepr)
rep.longrepr.sections.append(added_section)
d = rep._to_json()
a = TestReport._from_json(d)
assert isinstance(a.longrepr, ExceptionRepr)
# Check assembled == rep
assert a.__dict__.keys() == rep.__dict__.keys()
for key in rep.__dict__.keys():
if key != "longrepr":
assert getattr(a, key) == getattr(rep, key)
assert rep.longrepr.reprcrash is not None
assert a.longrepr.reprcrash is not None
assert rep.longrepr.reprcrash.lineno == a.longrepr.reprcrash.lineno
assert rep.longrepr.reprcrash.message == a.longrepr.reprcrash.message
assert rep.longrepr.reprcrash.path == a.longrepr.reprcrash.path
assert rep.longrepr.reprtraceback.entrysep == a.longrepr.reprtraceback.entrysep
assert (
rep.longrepr.reprtraceback.extraline == a.longrepr.reprtraceback.extraline
)
assert rep.longrepr.reprtraceback.style == a.longrepr.reprtraceback.style
assert rep.longrepr.sections == a.longrepr.sections
# Missing section attribute PR171
assert added_section in a.longrepr.sections
def test_reprentries_serialization_170(self, pytester: Pytester) -> None:
"""Regarding issue pytest-xdist#170
This test came originally from test_remote.py in xdist (ca03269).
"""
from _pytest._code.code import ReprEntry
reprec = pytester.inline_runsource(
"""
def test_repr_entry():
x = 0
assert x
""",
"--showlocals",
)
reports = reprec.getreports("pytest_runtest_logreport")
assert len(reports) == 3
rep = reports[1]
assert isinstance(rep.longrepr, ExceptionRepr)
d = rep._to_json()
a = TestReport._from_json(d)
assert isinstance(a.longrepr, ExceptionRepr)
rep_entries = rep.longrepr.reprtraceback.reprentries
a_entries = a.longrepr.reprtraceback.reprentries
assert len(rep_entries) == len(a_entries) # python < 3.10 zip(strict=True)
for a_entry, rep_entry in zip(a_entries, rep_entries):
assert isinstance(rep_entry, ReprEntry)
assert rep_entry.reprfileloc is not None
assert rep_entry.reprfuncargs is not None
assert rep_entry.reprlocals is not None
assert isinstance(a_entry, ReprEntry)
assert a_entry.reprfileloc is not None
assert a_entry.reprfuncargs is not None
assert a_entry.reprlocals is not None
assert rep_entry.lines == a_entry.lines
assert rep_entry.reprfileloc.lineno == a_entry.reprfileloc.lineno
assert rep_entry.reprfileloc.message == a_entry.reprfileloc.message
assert rep_entry.reprfileloc.path == a_entry.reprfileloc.path
assert rep_entry.reprfuncargs.args == a_entry.reprfuncargs.args
assert rep_entry.reprlocals.lines == a_entry.reprlocals.lines
assert rep_entry.style == a_entry.style
def test_reprentries_serialization_196(self, pytester: Pytester) -> None:
"""Regarding issue pytest-xdist#196
This test came originally from test_remote.py in xdist (ca03269).
"""
from _pytest._code.code import ReprEntryNative
reprec = pytester.inline_runsource(
"""
def test_repr_entry_native():
x = 0
assert x
""",
"--tb=native",
)
reports = reprec.getreports("pytest_runtest_logreport")
assert len(reports) == 3
rep = reports[1]
assert isinstance(rep.longrepr, ExceptionRepr)
d = rep._to_json()
a = TestReport._from_json(d)
assert isinstance(a.longrepr, ExceptionRepr)
rep_entries = rep.longrepr.reprtraceback.reprentries
a_entries = a.longrepr.reprtraceback.reprentries
assert len(rep_entries) == len(a_entries) # python < 3.10 zip(strict=True)
for rep_entry, a_entry in zip(rep_entries, a_entries):
assert isinstance(rep_entry, ReprEntryNative)
assert rep_entry.lines == a_entry.lines
def test_itemreport_outcomes(self, pytester: Pytester) -> None:
# This test came originally from test_remote.py in xdist (ca03269).
reprec = pytester.inline_runsource(
"""
import pytest
def test_pass(): pass
def test_fail(): 0/0
@pytest.mark.skipif("True")
def test_skip(): pass
def test_skip_imperative():
pytest.skip("hello")
@pytest.mark.xfail("True")
def test_xfail(): 0/0
def test_xfail_imperative():
pytest.xfail("hello")
"""
)
reports = reprec.getreports("pytest_runtest_logreport")
assert len(reports) == 17 # with setup/teardown "passed" reports
for rep in reports:
d = rep._to_json()
newrep = TestReport._from_json(d)
assert newrep.passed == rep.passed
assert newrep.failed == rep.failed
assert newrep.skipped == rep.skipped
if newrep.skipped and not hasattr(newrep, "wasxfail"):
assert isinstance(newrep.longrepr, tuple)
assert len(newrep.longrepr) == 3
assert newrep.outcome == rep.outcome
assert newrep.when == rep.when
assert newrep.keywords == rep.keywords
if rep.failed:
assert newrep.longreprtext == rep.longreprtext
def test_collectreport_passed(self, pytester: Pytester) -> None:
"""This test came originally from test_remote.py in xdist (ca03269)."""
reprec = pytester.inline_runsource("def test_func(): pass")
reports = reprec.getreports("pytest_collectreport")
for rep in reports:
d = rep._to_json()
newrep = CollectReport._from_json(d)
assert newrep.passed == rep.passed
assert newrep.failed == rep.failed
assert newrep.skipped == rep.skipped
def test_collectreport_fail(self, pytester: Pytester) -> None:
"""This test came originally from test_remote.py in xdist (ca03269)."""
reprec = pytester.inline_runsource("qwe abc")
reports = reprec.getreports("pytest_collectreport")
assert reports
for rep in reports:
d = rep._to_json()
newrep = CollectReport._from_json(d)
assert newrep.passed == rep.passed
assert newrep.failed == rep.failed
assert newrep.skipped == rep.skipped
if rep.failed:
assert newrep.longrepr == str(rep.longrepr)
def test_extended_report_deserialization(self, pytester: Pytester) -> None:
"""This test came originally from test_remote.py in xdist (ca03269)."""
reprec = pytester.inline_runsource("qwe abc")
reports = reprec.getreports("pytest_collectreport")
assert reports
for rep in reports:
rep.extra = True # type: ignore[attr-defined]
d = rep._to_json()
newrep = CollectReport._from_json(d)
assert newrep.extra
assert newrep.passed == rep.passed
assert newrep.failed == rep.failed
assert newrep.skipped == rep.skipped
if rep.failed:
assert newrep.longrepr == str(rep.longrepr)
def test_paths_support(self, pytester: Pytester) -> None:
"""Report attributes which are path-like should become strings."""
pytester.makepyfile(
"""
def test_a():
assert False
"""
)
class MyPathLike:
def __init__(self, path: str) -> None:
self.path = path
def __fspath__(self) -> str:
return self.path
reprec = pytester.inline_run()
reports = reprec.getreports("pytest_runtest_logreport")
assert len(reports) == 3
test_a_call = reports[1]
test_a_call.path1 = MyPathLike(str(pytester.path)) # type: ignore[attr-defined]
test_a_call.path2 = pytester.path # type: ignore[attr-defined]
data = test_a_call._to_json()
assert data["path1"] == str(pytester.path)
assert data["path2"] == str(pytester.path)
def test_deserialization_failure(self, pytester: Pytester) -> None:
"""Check handling of failure during deserialization of report types."""
pytester.makepyfile(
"""
def test_a():
assert False
"""
)
reprec = pytester.inline_run()
reports = reprec.getreports("pytest_runtest_logreport")
assert len(reports) == 3
test_a_call = reports[1]
data = test_a_call._to_json()
entry = data["longrepr"]["reprtraceback"]["reprentries"][0]
assert entry["type"] == "ReprEntry"
entry["type"] = "Unknown"
with pytest.raises(
RuntimeError, match="INTERNALERROR: Unknown entry type returned: Unknown"
):
TestReport._from_json(data)
@pytest.mark.parametrize("report_class", [TestReport, CollectReport])
def test_chained_exceptions(
self, pytester: Pytester, tw_mock, report_class
) -> None:
"""Check serialization/deserialization of report objects containing chained exceptions (#5786)"""
pytester.makepyfile(
f"""
def foo():
raise ValueError('value error')
def test_a():
try:
foo()
except ValueError as e:
raise RuntimeError('runtime error') from e
if {report_class is CollectReport}:
test_a()
"""
)
reprec = pytester.inline_run()
if report_class is TestReport:
reports: Sequence[TestReport] | Sequence[CollectReport] = reprec.getreports(
"pytest_runtest_logreport"
)
# we have 3 reports: setup/call/teardown
assert len(reports) == 3
# get the call report
report = reports[1]
else:
assert report_class is CollectReport
# three collection reports: session, test file, directory
reports = reprec.getreports("pytest_collectreport")
assert len(reports) == 3
report = reports[1]
def check_longrepr(longrepr: ExceptionChainRepr) -> None:
"""Check the attributes of the given longrepr object according to the test file.
We can get away with testing both CollectReport and TestReport with this function because
the longrepr objects are very similar.
"""
assert isinstance(longrepr, ExceptionChainRepr)
assert longrepr.sections == [("title", "contents", "=")]
assert len(longrepr.chain) == 2
entry1, entry2 = longrepr.chain
tb1, fileloc1, desc1 = entry1
tb2, fileloc2, desc2 = entry2
assert "ValueError('value error')" in str(tb1)
assert "RuntimeError('runtime error')" in str(tb2)
assert (
desc1
== "The above exception was the direct cause of the following exception:"
)
assert desc2 is None
assert report.failed
assert len(report.sections) == 0
assert isinstance(report.longrepr, ExceptionChainRepr)
report.longrepr.addsection("title", "contents", "=")
check_longrepr(report.longrepr)
data = report._to_json()
loaded_report = report_class._from_json(data)
assert loaded_report.failed
check_longrepr(loaded_report.longrepr)
# make sure we don't blow up on ``toterminal`` call; we don't test the actual output because it is very
# brittle and hard to maintain, but we can assume it is correct because ``toterminal`` is already tested
# elsewhere and we do check the contents of the longrepr object after loading it.
loaded_report.longrepr.toterminal(tw_mock)
def test_chained_exceptions_no_reprcrash(self, pytester: Pytester, tw_mock) -> None:
"""Regression test for tracebacks without a reprcrash (#5971)
This happens notably on exceptions raised by multiprocess.pool: the exception transfer
from subprocess to main process creates an artificial exception, which ExceptionInfo
can't obtain the ReprFileLocation from.
"""
pytester.makepyfile(
"""
from concurrent.futures import ProcessPoolExecutor
def func():
raise ValueError('value error')
def test_a():
with ProcessPoolExecutor() as p:
p.submit(func).result()
"""
)
pytester.syspathinsert()
reprec = pytester.inline_run()
reports = reprec.getreports("pytest_runtest_logreport")
def check_longrepr(longrepr: object) -> None:
assert isinstance(longrepr, ExceptionChainRepr)
assert len(longrepr.chain) == 2
entry1, entry2 = longrepr.chain
tb1, fileloc1, desc1 = entry1
tb2, fileloc2, desc2 = entry2
assert "RemoteTraceback" in str(tb1)
assert "ValueError: value error" in str(tb2)
assert fileloc1 is None
assert fileloc2 is not None
assert fileloc2.message == "ValueError: value error"
# 3 reports: setup/call/teardown: get the call report
assert len(reports) == 3
report = reports[1]
assert report.failed
check_longrepr(report.longrepr)
data = report._to_json()
loaded_report = TestReport._from_json(data)
assert loaded_report.failed
check_longrepr(loaded_report.longrepr)
# for same reasons as previous test, ensure we don't blow up here
assert loaded_report.longrepr is not None
assert isinstance(loaded_report.longrepr, ExceptionChainRepr)
loaded_report.longrepr.toterminal(tw_mock)
def test_report_prevent_ConftestImportFailure_hiding_exception(
self, pytester: Pytester
) -> None:
sub_dir = pytester.path.joinpath("ns")
sub_dir.mkdir()
sub_dir.joinpath("conftest.py").write_text("import unknown", encoding="utf-8")
result = pytester.runpytest_subprocess(".")
result.stdout.fnmatch_lines(["E *Error: No module named 'unknown'"])
result.stdout.no_fnmatch_line("ERROR - *ConftestImportFailure*")
def test_report_timestamps_match_duration(self, pytester: Pytester, mock_timing):
reprec = pytester.inline_runsource(
"""
import pytest
from _pytest import timing
@pytest.fixture
def fixture_():
timing.sleep(5)
yield
timing.sleep(5)
def test_1(fixture_): timing.sleep(10)
"""
)
reports = reprec.getreports("pytest_runtest_logreport")
assert len(reports) == 3
for report in reports:
data = report._to_json()
loaded_report = TestReport._from_json(data)
assert loaded_report.stop - loaded_report.start == approx(report.duration)
class TestHooks:
"""Test that the hooks are working correctly for plugins"""
def test_test_report(self, pytester: Pytester, pytestconfig: Config) -> None:
pytester.makepyfile(
"""
def test_a(): assert False
def test_b(): pass
"""
)
reprec = pytester.inline_run()
reports = reprec.getreports("pytest_runtest_logreport")
assert len(reports) == 6
for rep in reports:
data = pytestconfig.hook.pytest_report_to_serializable(
config=pytestconfig, report=rep
)
assert data["$report_type"] == "TestReport"
new_rep = pytestconfig.hook.pytest_report_from_serializable(
config=pytestconfig, data=data
)
assert new_rep.nodeid == rep.nodeid
assert new_rep.when == rep.when
assert new_rep.outcome == rep.outcome
def test_collect_report(self, pytester: Pytester, pytestconfig: Config) -> None:
pytester.makepyfile(
"""
def test_a(): assert False
def test_b(): pass
"""
)
reprec = pytester.inline_run()
reports = reprec.getreports("pytest_collectreport")
assert len(reports) == 3
for rep in reports:
data = pytestconfig.hook.pytest_report_to_serializable(
config=pytestconfig, report=rep
)
assert data["$report_type"] == "CollectReport"
new_rep = pytestconfig.hook.pytest_report_from_serializable(
config=pytestconfig, data=data
)
assert new_rep.nodeid == rep.nodeid
assert new_rep.when == "collect"
assert new_rep.outcome == rep.outcome
@pytest.mark.parametrize(
"hook_name", ["pytest_runtest_logreport", "pytest_collectreport"]
)
def test_invalid_report_types(
self, pytester: Pytester, pytestconfig: Config, hook_name: str
) -> None:
pytester.makepyfile(
"""
def test_a(): pass
"""
)
reprec = pytester.inline_run()
reports = reprec.getreports(hook_name)
assert reports
rep = reports[0]
data = pytestconfig.hook.pytest_report_to_serializable(
config=pytestconfig, report=rep
)
data["$report_type"] = "Unknown"
with pytest.raises(AssertionError):
_ = pytestconfig.hook.pytest_report_from_serializable(
config=pytestconfig, data=data
)