196 lines
7.0 KiB
Python
196 lines
7.0 KiB
Python
import warnings
|
|
import py
|
|
import pytest
|
|
from _pytest.recwarn import WarningsRecorder
|
|
|
|
|
|
def test_recwarn_functional(testdir):
|
|
reprec = testdir.inline_runsource("""
|
|
import warnings
|
|
oldwarn = warnings.showwarning
|
|
def test_method(recwarn):
|
|
assert warnings.showwarning != oldwarn
|
|
warnings.warn("hello")
|
|
warn = recwarn.pop()
|
|
assert isinstance(warn.message, UserWarning)
|
|
def test_finalized():
|
|
assert warnings.showwarning == oldwarn
|
|
""")
|
|
res = reprec.countoutcomes()
|
|
assert tuple(res) == (2, 0, 0), res
|
|
|
|
|
|
class TestWarningsRecorderChecker(object):
|
|
def test_recording(self, recwarn):
|
|
showwarning = py.std.warnings.showwarning
|
|
rec = WarningsRecorder()
|
|
with rec:
|
|
assert py.std.warnings.showwarning != showwarning
|
|
assert not rec.list
|
|
py.std.warnings.warn_explicit("hello", UserWarning, "xyz", 13)
|
|
assert len(rec.list) == 1
|
|
py.std.warnings.warn(DeprecationWarning("hello"))
|
|
assert len(rec.list) == 2
|
|
warn = rec.pop()
|
|
assert str(warn.message) == "hello"
|
|
l = rec.list
|
|
rec.clear()
|
|
assert len(rec.list) == 0
|
|
assert l is rec.list
|
|
pytest.raises(AssertionError, "rec.pop()")
|
|
|
|
assert showwarning == py.std.warnings.showwarning
|
|
|
|
def test_typechecking(self):
|
|
from _pytest.recwarn import WarningsChecker
|
|
with pytest.raises(TypeError):
|
|
WarningsChecker(5)
|
|
with pytest.raises(TypeError):
|
|
WarningsChecker(('hi', RuntimeWarning))
|
|
with pytest.raises(TypeError):
|
|
WarningsChecker([DeprecationWarning, RuntimeWarning])
|
|
|
|
def test_invalid_enter_exit(self):
|
|
# wrap this test in WarningsRecorder to ensure warning state gets reset
|
|
with WarningsRecorder():
|
|
with pytest.raises(RuntimeError):
|
|
rec = WarningsRecorder()
|
|
rec.__exit__(None, None, None) # can't exit before entering
|
|
|
|
with pytest.raises(RuntimeError):
|
|
rec = WarningsRecorder()
|
|
with rec:
|
|
with rec:
|
|
pass # can't enter twice
|
|
|
|
#
|
|
# ============ test pytest.deprecated_call() ==============
|
|
#
|
|
|
|
def dep(i):
|
|
if i == 0:
|
|
py.std.warnings.warn("is deprecated", DeprecationWarning)
|
|
return 42
|
|
|
|
reg = {}
|
|
def dep_explicit(i):
|
|
if i == 0:
|
|
py.std.warnings.warn_explicit("dep_explicit", category=DeprecationWarning,
|
|
filename="hello", lineno=3)
|
|
|
|
class TestDeprecatedCall(object):
|
|
def test_deprecated_call_raises(self):
|
|
excinfo = pytest.raises(AssertionError,
|
|
"pytest.deprecated_call(dep, 3)")
|
|
assert str(excinfo).find("did not produce") != -1
|
|
|
|
def test_deprecated_call(self):
|
|
pytest.deprecated_call(dep, 0)
|
|
|
|
def test_deprecated_call_ret(self):
|
|
ret = pytest.deprecated_call(dep, 0)
|
|
assert ret == 42
|
|
|
|
def test_deprecated_call_preserves(self):
|
|
onceregistry = py.std.warnings.onceregistry.copy()
|
|
filters = py.std.warnings.filters[:]
|
|
warn = py.std.warnings.warn
|
|
warn_explicit = py.std.warnings.warn_explicit
|
|
self.test_deprecated_call_raises()
|
|
self.test_deprecated_call()
|
|
assert onceregistry == py.std.warnings.onceregistry
|
|
assert filters == py.std.warnings.filters
|
|
assert warn is py.std.warnings.warn
|
|
assert warn_explicit is py.std.warnings.warn_explicit
|
|
|
|
def test_deprecated_explicit_call_raises(self):
|
|
pytest.raises(AssertionError,
|
|
"pytest.deprecated_call(dep_explicit, 3)")
|
|
|
|
def test_deprecated_explicit_call(self):
|
|
pytest.deprecated_call(dep_explicit, 0)
|
|
pytest.deprecated_call(dep_explicit, 0)
|
|
|
|
def test_deprecated_call_pending(self):
|
|
f = lambda: py.std.warnings.warn(PendingDeprecationWarning("hi"))
|
|
pytest.deprecated_call(f)
|
|
|
|
def test_deprecated_call_specificity(self):
|
|
other_warnings = [Warning, UserWarning, SyntaxWarning, RuntimeWarning,
|
|
FutureWarning, ImportWarning, UnicodeWarning]
|
|
for warning in other_warnings:
|
|
f = lambda: py.std.warnings.warn(warning("hi"))
|
|
with pytest.raises(AssertionError):
|
|
pytest.deprecated_call(f)
|
|
|
|
|
|
class TestWarns(object):
|
|
def test_strings(self):
|
|
# different messages, b/c Python suppresses multiple identical warnings
|
|
source1 = "warnings.warn('w1', RuntimeWarning)"
|
|
source2 = "warnings.warn('w2', RuntimeWarning)"
|
|
source3 = "warnings.warn('w3', RuntimeWarning)"
|
|
pytest.warns(RuntimeWarning, source1)
|
|
pytest.raises(pytest.fail.Exception,
|
|
lambda: pytest.warns(UserWarning, source2))
|
|
pytest.warns(RuntimeWarning, source3)
|
|
|
|
def test_function(self):
|
|
pytest.warns(SyntaxWarning,
|
|
lambda msg: warnings.warn(msg, SyntaxWarning), "syntax")
|
|
|
|
def test_warning_tuple(self):
|
|
pytest.warns((RuntimeWarning, SyntaxWarning),
|
|
lambda: warnings.warn('w1', RuntimeWarning))
|
|
pytest.warns((RuntimeWarning, SyntaxWarning),
|
|
lambda: warnings.warn('w2', SyntaxWarning))
|
|
pytest.raises(pytest.fail.Exception,
|
|
lambda: pytest.warns(
|
|
(RuntimeWarning, SyntaxWarning),
|
|
lambda: warnings.warn('w3', UserWarning)))
|
|
|
|
def test_as_contextmanager(self):
|
|
with pytest.warns(RuntimeWarning):
|
|
warnings.warn("runtime", RuntimeWarning)
|
|
|
|
with pytest.raises(pytest.fail.Exception):
|
|
with pytest.warns(RuntimeWarning):
|
|
warnings.warn("user", UserWarning)
|
|
|
|
with pytest.raises(pytest.fail.Exception):
|
|
with pytest.warns(UserWarning):
|
|
warnings.warn("runtime", RuntimeWarning)
|
|
|
|
with pytest.warns(UserWarning):
|
|
warnings.warn("user", UserWarning)
|
|
|
|
def test_record(self):
|
|
with pytest.warns(UserWarning) as record:
|
|
warnings.warn("user", UserWarning)
|
|
|
|
assert len(record) == 1
|
|
assert str(record[0].message) == "user"
|
|
|
|
def test_record_only(self):
|
|
with pytest.warns(None) as record:
|
|
warnings.warn("user", UserWarning)
|
|
warnings.warn("runtime", RuntimeWarning)
|
|
|
|
assert len(record) == 2
|
|
assert str(record[0].message) == "user"
|
|
assert str(record[1].message) == "runtime"
|
|
|
|
def test_double_test(self, testdir):
|
|
"""If a test is run again, the warning should still be raised"""
|
|
testdir.makepyfile('''
|
|
import pytest
|
|
import warnings
|
|
|
|
@pytest.mark.parametrize('run', [1, 2])
|
|
def test(run):
|
|
with pytest.warns(RuntimeWarning):
|
|
warnings.warn("runtime", RuntimeWarning)
|
|
''')
|
|
result = testdir.runpytest()
|
|
result.stdout.fnmatch_lines(['*2 passed in*'])
|