def And_attribute_is_a_magic_instance_method(context):
context.memoize("call_args", lambda _: ())
context.memoize("call_kwargs", lambda _: {})
@context.before
def before(self):
target = StrictMock(template=Target)
self.original_callable = None
self.real_target = target
self.target_arg = target
self.callable_arg = "__str__"
self.mock_callable_dsl = mock_callable(
self.target_arg, self.callable_arg
)
self.callable_target = lambda: str(target)
context.merge_context(
"examples for target",
callable_accepts_no_args=True,
has_original_callable=False,
can_yield=False,
)
context.merge_context("other instances are not mocked")
def with_signature_validation_False(context):
@context.function
def get_signature_validation(self):
return False
context.merge_context("callable attributes examples",
signature_validation_value=False)
def When_target_is_function_of_a_module(context):
@context.before
def before(self):
self.original_callable = testslide._test_function
self.real_target = testslide
self.target_arg = "testslide"
self.callable_arg = "_test_function"
self.mock_callable_dsl = mock_callable(self.target_arg, self.callable_arg)
self.callable_target = testslide._test_function
context.merge_context("examples for target")
@context.example
def works_with_alternative_module_names(self):
target = "os.path"
target_module = os.path
alternative_target = "testslide.cli.os.path"
import testslide.cli
alternative_target_module = testslide.cli.os.path
original_function = os.path.exists
self.mock_callable(target, "exists").for_call("found").to_return_value(True)
self.mock_callable(alternative_target, "exists").for_call(
"not_found"
).to_return_value(False)
self.assertTrue(target_module.exists("found"))
self.assertTrue(alternative_target_module.exists("found"))
self.assertFalse(target_module.exists("not_found"))
self.assertFalse(alternative_target_module.exists("not_found"))
testslide.mock_callable.unpatch_all_callable_mocks()
self.assertEqual(os.path.exists, original_function, "Unpatch did not work")
def common(context, fails_if_class_attribute):
context.merge_context("patching works")
@context.example
def it_fails_if_attribute_is_callable(self):
with self.assertRaisesRegex(ValueError,
"^Attribute can not be callable*"):
self.patch_attribute(self.target, self.callable_attribute,
self.new_value)
if fails_if_class_attribute:
@context.example
def it_fails_if_attribute_is_a_class(self):
with self.assertRaisesRegex(ValueError,
"^Attribute can not be a class*"):
self.patch_attribute(self.target, self.class_attribute,
self.new_value)
else:
@context.sub_context
def with_class_attributes(context):
context.merge_context("patching works")
@context.xexample
def it_fails_if_new_value_is_of_incompatible_type(self):
pass
def with_a_patched_runtime_attr(context):
context.memoize(
"target",
lambda self: StrictMock(template=sample_module.SomeClass,
runtime_attrs=["runtime_attr"]),
)
context.memoize("attribute", lambda self: "runtime_attr")
context.merge_context("patching works")
def when_target_is_an_instance(context):
context.memoize("target", lambda self: sample_module.SomeClass())
context.memoize("real_target", lambda self: self.target)
context.merge_context("common", fails_if_class_attribute=False)
@context.sub_context
def and_attribute_is_a_property(context):
context.merge_context("common", fails_if_class_attribute=False)
def When_target_is_static_method_at_a_class(context):
@context.before
def before(self):
self.original_callable = Target.static_method
self.real_target = Target
self.target_arg = Target
self.callable_arg = "static_method"
self.mock_callable_dsl = mock_callable(self.target_arg, self.callable_arg)
self.callable_target = Target.static_method
context.merge_context("examples for target")
def When_target_is_function_of_a_module(context):
@context.before
def before(self):
self.original_callable = testslide._test_function
self.target_arg = "testslide"
self.callable_arg = "_test_function"
self.mock_callable_dsl = mock_callable(self.target_arg,
self.callable_arg)
self.callable_target = testslide._test_function
context.merge_context("examples for target")
def fails_when(context):
context.merge_context("assert failure")
@context.example
def called_once(self):
self.callable_target(*self.call_args,
**self.call_kwargs)
@context.example
def called_several_times(self):
for _ in range(self.times + 1):
self.callable_target(*self.call_args,
**self.call_kwargs)
def fails_when(context):
context.merge_context("assert failure")
context.merge_context("not called")
context.merge_context("called less times")
context.merge_context("called more times fail")
def When_target_is_instance_method_at_an_instance(context):
context.memoize("callable_arg", lambda _: "instance_method")
@context.before
def before(self):
target = Target()
self.original_callable = target.instance_method
self.real_target = target
self.target_arg = target
self.mock_callable_dsl = mock_callable(self.target_arg, self.callable_arg)
self.callable_target = target.instance_method
context.merge_context("examples for target")
context.merge_context("other instances are not mocked")
def When_target_is_a_builtin(context):
context.memoize("call_args", lambda _: (0,))
context.memoize("call_kwargs", lambda _: {})
context.memoize("specific_call_args", lambda _: (0.000000001,))
context.memoize("specific_call_kwargs", lambda _: {})
@context.before
def before(self):
self.original_callable = time.sleep
self.real_target = time
self.target_arg = "time"
self.callable_arg = "sleep"
self.mock_callable_dsl = mock_callable(self.target_arg, self.callable_arg)
self.callable_target = time.sleep
context.merge_context("examples for target", validate_signature=False)
def And_attribute_is_a_instance_method(context):
context.memoize("callable_arg", lambda _: "instance_method")
@context.before
def before(self):
target = StrictMock(template=Target)
self.original_callable = None
self.target_arg = target
self.mock_callable_dsl = mock_callable(self.target_arg,
self.callable_arg)
self.callable_target = target.instance_method
context.merge_context("examples for target",
has_original_callable=False)
context.merge_context("other instances are not mocked")
def method_mocking(context):
context.merge_context("can access attributes")
@context.after
def after(self):
self.assertEqual(
getattr(
self.strict_mock,
self.test_method_name)("hello"),
"mock: hello",
)
@context.example
def can_mock_with_function(self):
setattr(
self.strict_mock,
self.test_method_name,
self.mock_function,
)
@context.example
def can_mock_with_lambda(self):
setattr(
self.strict_mock,
self.test_method_name,
lambda message: "mock: {}".format(
message),
)
@context.example
def can_mock_with_instancemethod(self):
class SomeClass(object):
def mock_method(self, message):
return "mock: {}".format(message)
setattr(
self.strict_mock,
self.test_method_name,
SomeClass().mock_method,
)
def magic_method_tests(context):
@context.before
def before(self):
self.original_callable = self.target.__str__
self.target_arg = self.target
self.callable_arg = "__str__"
self.mock_callable_dsl = mock_callable(self.target_arg,
self.callable_arg)
self.callable_target = lambda: str(self.target)
context.merge_context("examples for target",
callable_accepts_no_args=True,
can_yield=False)
@context.example
def other_instances_are_not_mocked(self):
mock_callable(
self.target_arg,
self.callable_arg).to_return_value("mocked value")
self.assertEqual(self.callable_target(), "mocked value")
self.assertEqual(str(Target()), "original response")
def When_target_is_static_method_at_an_instance(context):
@context.before
def before(self):
target = Target()
self.original_callable = target.static_method
self.real_target = target
self.target_arg = target
self.callable_arg = "static_method"
self.mock_callable_dsl = mock_callable(self.target_arg, self.callable_arg)
self.callable_target = target.static_method
context.merge_context("examples for target")
context.merge_context("other instances are not mocked")
context.merge_context("class is not mocked")
def And_attribute_is_a_static_method(context):
@context.before
def before(self):
target = StrictMock(template=Target)
self.original_callable = None
self.target_arg = target
self.callable_arg = "static_method"
self.mock_callable_dsl = mock_callable(self.target_arg,
self.callable_arg)
self.callable_target = target.static_method
context.merge_context("examples for target",
has_original_callable=False)
context.merge_context("other instances are not mocked")
context.merge_context("class is not mocked")
def fails_when(context):
context.merge_context("assert failure")
context.merge_context("not called")
def without_a_template(context):
context.memoize("target", lambda self: StrictMock())
context.merge_context("patching works")
def with_a_template(context):
context.memoize(
"target",
lambda self: StrictMock(template=sample_module.SomeClass))
context.merge_context("common", fails_if_class_attribute=False)
def and_attribute_is_a_property(context):
context.memoize("attribute", lambda self: "property_attribute")
context.merge_context("common", fails_if_class_attribute=False)
def given_as_a_string(context):
context.memoize("target", lambda self: "tests.sample_module")
context.memoize("real_target", lambda self: sample_module)
context.merge_context("common", fails_if_class_attribute=True)
def with_magic_method_defined_on_parent_class(context):
context.memoize("target", lambda self: Target())
context.merge_context("magic method tests")
def class_methods(context):
@context.memoize_before
async def method_name(self):
return "async_class_method"
context.merge_context("async method tests")
def class_attributes_at_the_class(context):
@context.memoize
def class_attribute_target(self):
return self.get_target_class()
context.merge_context("class attributes")
def class_attributes_at_the_instance(context):
context.memoize("class_attribute_target",
lambda self: self.target)
context.merge_context("class attributes")
def with_class_attributes(context):
context.merge_context("patching works")
def with_target_mock_memoized(context):
@context.memoize
def target_mock(self):
return self.get_target_mock()
context.merge_context("StrictMock tests")
def given_as_a_reference(context):
context.memoize("target", lambda self: sample_module)
context.memoize("real_target", lambda self: self.target)
context.merge_context("common", fails_if_class_attribute=True)
def passes_when(context):
context.merge_context("called less times")
context.merge_context("called exactly times")