def test_exception_repr_extraction_error_on_recursion():
"""
Ensure we can properly detect a recursion error even
if some locals raise error on comparision (#2459).
"""
class numpy_like(object):
def __eq__(self, other):
if type(other) is numpy_like:
raise ValueError('The truth value of an array '
'with more than one element is ambiguous.')
def a(x):
return b(numpy_like())
def b(x):
return a(numpy_like())
try:
a(numpy_like())
except: # noqa
from _pytest._code.code import ExceptionInfo
from _pytest.pytester import LineMatcher
exc_info = ExceptionInfo()
matcher = LineMatcher(str(exc_info.getrepr()).splitlines())
matcher.fnmatch_lines([
'!!! Recursion error detected, but an error occurred locating the origin of recursion.',
'*The following exception happened*',
'*ValueError: The truth value of an array*',
])
def test_exception_repr_extraction_error_on_recursion():
"""
Ensure we can properly detect a recursion error even
if some locals raise error on comparison (#2459).
"""
from _pytest.pytester import LineMatcher
class numpy_like(object):
def __eq__(self, other):
if type(other) is numpy_like:
raise ValueError(
"The truth value of an array "
"with more than one element is ambiguous."
)
def a(x):
return b(numpy_like())
def b(x):
return a(numpy_like())
with pytest.raises(RuntimeError) as excinfo:
a(numpy_like())
matcher = LineMatcher(str(excinfo.getrepr()).splitlines())
matcher.fnmatch_lines(
[
"!!! Recursion error detected, but an error occurred locating the origin of recursion.",
"*The following exception happened*",
"*ValueError: The truth value of an array*",
]
)
def test_all(self, testdir, pastebinlist):
from _pytest.pytester import LineMatcher
testpath = testdir.makepyfile(
"""
import pytest
def test_pass():
pass
def test_fail():
assert 0
def test_skip():
pytest.skip("")
"""
)
reprec = testdir.inline_run(testpath, "--pastebin=all", "-v")
assert reprec.countoutcomes() == [1, 1, 1]
assert len(pastebinlist) == 1
contents = pastebinlist[0].decode("utf-8")
matcher = LineMatcher(contents.splitlines())
matcher.fnmatch_lines(
[
"*test_pass PASSED*",
"*test_fail FAILED*",
"*test_skip SKIPPED*",
"*== 1 failed, 1 passed, 1 skipped in *",
]
)
def test_linematcher_with_nonlist():
"""Test LineMatcher with regard to passing in a set (accidentally)."""
lm = LineMatcher([])
with pytest.raises(AssertionError):
lm.fnmatch_lines(set())
with pytest.raises(AssertionError):
lm.fnmatch_lines({})
lm.fnmatch_lines([])
lm.fnmatch_lines(())
assert lm._getlines({}) == {}
assert lm._getlines(set()) == set()
def test_exc_chain_repr_without_traceback(self, importasmod, reason, description):
"""
Handle representation of exception chains where one of the exceptions doesn't have a
real traceback, such as those raised in a subprocess submitted by the multiprocessing
module (#1984).
"""
from _pytest.pytester import LineMatcher
exc_handling_code = " from e" if reason == "cause" else ""
mod = importasmod(
"""
def f():
try:
g()
except Exception as e:
raise RuntimeError('runtime problem'){exc_handling_code}
def g():
raise ValueError('invalid value')
""".format(
exc_handling_code=exc_handling_code
)
)
with pytest.raises(RuntimeError) as excinfo:
mod.f()
# emulate the issue described in #1984
attr = "__%s__" % reason
getattr(excinfo.value, attr).__traceback__ = None
r = excinfo.getrepr()
tw = py.io.TerminalWriter(stringio=True)
tw.hasmarkup = False
r.toterminal(tw)
matcher = LineMatcher(tw.stringio.getvalue().splitlines())
matcher.fnmatch_lines(
[
"ValueError: invalid value",
description,
"* except Exception as e:",
"> * raise RuntimeError('runtime problem')" + exc_handling_code,
"E *RuntimeError: runtime problem",
]
)
def test_linematcher_no_matching_after_match() -> None:
lm = LineMatcher(["1", "2", "3"])
lm.fnmatch_lines(["1", "3"])
with pytest.raises(Failed) as e:
lm.no_fnmatch_line("*")
assert str(e.value).splitlines() == ["fnmatch: '*'", " with: '1'"]
def _getmatcher():
lines = out.getvalue().split("\n")
return LineMatcher(lines)
def test_linematcher_with_nonlist() -> None:
"""Test LineMatcher with regard to passing in a set (accidentally)."""
from _pytest._code.source import Source
lm = LineMatcher([])
with pytest.raises(TypeError, match="invalid type for lines2: set"):
lm.fnmatch_lines(set()) # type: ignore[arg-type] # noqa: F821
with pytest.raises(TypeError, match="invalid type for lines2: dict"):
lm.fnmatch_lines({}) # type: ignore[arg-type] # noqa: F821
with pytest.raises(TypeError, match="invalid type for lines2: set"):
lm.re_match_lines(set()) # type: ignore[arg-type] # noqa: F821
with pytest.raises(TypeError, match="invalid type for lines2: dict"):
lm.re_match_lines({}) # type: ignore[arg-type] # noqa: F821
with pytest.raises(TypeError, match="invalid type for lines2: Source"):
lm.fnmatch_lines(Source()) # type: ignore[arg-type] # noqa: F821
lm.fnmatch_lines([])
lm.fnmatch_lines(())
lm.fnmatch_lines("")
assert lm._getlines({}) == {} # type: ignore[arg-type,comparison-overlap] # noqa: F821
assert lm._getlines(set()) == set() # type: ignore[arg-type,comparison-overlap] # noqa: F821
assert lm._getlines(Source()) == []
assert lm._getlines(Source("pass\npass")) == ["pass", "pass"]
def test_multiple_processes_logging_log_file(logging_master, matches):
# And on the log file, we also have matches?
matcher = LineMatcher(logging_master.log_file.read_text().splitlines())
matcher.fnmatch_lines_random(matches)
def test_multiple_processes_logging_stderr(logging_master, matches):
# Are we seeing the main pid in the STDERR getting logged?
# And there must be more than the main process in the STDERR logs
matcher = LineMatcher(logging_master.ret.stderr.splitlines())
matcher.fnmatch_lines_random(matches)
def test_linematcher_string_api() -> None:
lm = LineMatcher(["foo", "bar"])
assert str(lm) == "foo\nbar"
def __init__(self, dir, filepath):
lines = dir.join(filepath).read().splitlines()
LineMatcher.__init__(self, lines)
def test_no_matching_after_match():
lm = LineMatcher(["1", "2", "3"])
lm.fnmatch_lines(["1", "3"])
with pytest.raises(pytest.fail.Exception) as e:
lm.no_fnmatch_line("*")
assert str(e.value).splitlines() == ["fnmatch: '*'", " with: '1'"]