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import py, pytest
from _pytest.recwarn import WarningsRecorder
def test_WarningRecorder(recwarn):
showwarning = py.std.warnings.showwarning
rec = WarningsRecorder()
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()")
rec.finalize()
assert showwarning == py.std.warnings.showwarning
def test_recwarn_functional(testdir):
reprec = testdir.inline_runsource("""
pytest_plugins = 'pytest_recwarn',
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
#
# ============ test py.test.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)
def test_deprecated_call_raises():
excinfo = pytest.raises(AssertionError,
"py.test.deprecated_call(dep, 3)")
assert str(excinfo).find("did not produce") != -1
def test_deprecated_call():
py.test.deprecated_call(dep, 0)
def test_deprecated_call_ret():
ret = py.test.deprecated_call(dep, 0)
assert ret == 42
def test_deprecated_call_preserves():
r = py.std.warnings.onceregistry.copy()
f = py.std.warnings.filters[:]
test_deprecated_call_raises()
test_deprecated_call()
assert r == py.std.warnings.onceregistry
assert f == py.std.warnings.filters
def test_deprecated_explicit_call_raises():
pytest.raises(AssertionError,
"py.test.deprecated_call(dep_explicit, 3)")
def test_deprecated_explicit_call():
py.test.deprecated_call(dep_explicit, 0)
py.test.deprecated_call(dep_explicit, 0)
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