def test_warn_not_expected(self):
with ShouldAssert("sequence not as expected:\n\n"
"same:\n[]\n\n"
"expected:\n[]\n\n"
"actual:\n[UserWarning('foo'" + comma + ")]"):
with warnings.catch_warnings(record=True) as backstop:
with ShouldNotWarn():
warnings.warn('foo')
compare(len(backstop), expected=0)
def test_no_warn_expected(self):
with ShouldNotWarn():
pass