def test_empty(self):
"""
Empty pipe returns same value.
"""
o = object()
assert o is pipe()(o)
def test_success(self):
"""
Succeeds if all wrapped converters succeed.
"""
c = pipe(str, strtobool, bool)
assert True is c("True") is c(True)
def test_fail(self):
"""
Fails if any wrapped converter fails.
"""
c = pipe(str, strtobool)
# First wrapped converter fails:
with pytest.raises(ValueError):
c(33)
# Last wrapped converter fails:
with pytest.raises(ValueError):
c("33")
class C(object):
a1 = attrib(default="True", converter=pipe(str, strtobool, bool))
a2 = attrib(default=True, converter=[str, strtobool, bool])
class C:
a1 = attrib(default="True", converter=pipe(str, to_bool, bool))
a2 = attrib(default=True, converter=[str, to_bool, bool])
