def test_get_signature_infers_defaults():
def func(foo="bar"):
pass
signature = get_signature(func)
assert signature.parameters == ("foo",)
assert signature.required == tuple()
assert signature.optional == {"foo": "bar"}
def test_get_signature_works_with_mixed_arg_kwarg():
def func(foo, bar, baz="buz"):
pass
signature = get_signature(func)
assert signature.parameters == ("foo", "bar", "baz")
assert signature.required == ("foo", "bar")
assert signature.optional == {"baz": "buz"}
def test_get_signature_returns_empty_dict_for_no_defaults():
def func(foo, bar, baz):
pass
signature = get_signature(func)
assert signature.parameters == ("foo", "bar", "baz")
assert signature.required == ("foo", "bar", "baz")
assert signature.optional == {}
def test_get_signature_infers_defaults():
def func(foo='bar'):
pass
signature = get_signature(func)
assert signature.parameters == ('foo', )
assert signature.required == tuple()
assert signature.optional == {'foo': 'bar'}
def test_get_signature_works_with_mixed_arg_kwarg():
def func(foo, bar, baz='buz'):
pass
signature = get_signature(func)
assert signature.parameters == ('foo', 'bar', 'baz')
assert signature.required == ('foo', 'bar')
assert signature.optional == {'baz': 'buz'}
def test_get_signature_returns_empty_dict_for_no_defaults():
def func(foo, bar, baz):
pass
signature = get_signature(func)
assert signature.parameters == ('foo', 'bar', 'baz')
assert signature.required == ('foo', 'bar', 'baz')
assert signature.optional == {}
def test_get_signature_doesnt_conflate_objects_defined_inside():
def func(foo, bar, baz=2):
blah = foo * 42
return blah
signature = get_signature(func)
assert signature.parameters == ("foo", "bar", "baz")
assert signature.required == ("foo", "bar")
assert signature.optional == {"baz": 2}
def test_get_signature_doesnt_conflate_objects_defined_inside():
def func(foo, bar, baz=2):
blah = foo * 42
return blah
signature = get_signature(func)
assert signature.parameters == ('foo', 'bar', 'baz')
assert signature.required == ('foo', 'bar')
assert signature.optional == {'baz': 2}
def loop(in_except):
signatures = self._signatures
for function, prev_func in functions_iter:
if _return_after is not None and prev_func is not _NO_PREVIOUS:
if prev_func.__name__ == _return_after:
break
try:
if function not in signatures:
signatures[function] = get_signature(function)
deps = resolve_dependencies(signatures[function], state)
skip = (
# When function wants exception but we don't have it.
not in_except and 'exception' in deps.signature.required
or
# When function doesn't want exception but we have it.
in_except and 'exception' not in deps.signature.parameters
)
if not skip:
new_state = function(**deps.as_kwargs)
if new_state is not None:
state.update(new_state)
if in_except and state['exception'] is None:
# exception is cleared, return to normal flow
if PYTHON_2:
sys.exc_clear()
return
except:
if _raise_immediately:
raise
state['exception'] = sys.exc_info()[1]
loop(True)
if in_except:
# an exception occurred while we were handling another
# exception, but now it's been cleared, so we return to
# the normal flow
return
if in_except:
raise # exception hasn't been handled, reraise
