def function_calling_methods_with_strangely_named_self():
class Class(object):
def strange_method(s):
pass
def another_strange_method(*args):
pass
Class().strange_method()
Class().another_strange_method()
def function_calling_method_which_calls_other_method():
class Class(object):
def method(self):
self.other_method()
def other_method(self):
pass
Class().method()
def test_doesnt_include_side_effects_of_method_calls_into_user_object_test_case(
self):
klass = Class("UserClass")
user_obj = UserObject(None, klass)
init = Method("__init__", klass=klass)
init_call = MethodCall(definition=init, args={}, output=user_obj)
method1 = Method("method1", klass=klass)
method1_call = MethodCall(definition=method1,
args={},
output=create(ImmutableObject))
se1 = GlobalRebind('mod', 'var', ImmutableObject('new_value'))
method1_call.add_side_effect(se1)
method2 = Method("method2", klass=klass)
method2_call = MethodCall(definition=method2,
args={},
output=create(ImmutableObject))
se2 = AttributeRebind(user_obj, 'attr', create(ImmutableObject, obj=1))
method2_call.add_side_effect(se2)
user_obj.add_call(init_call)
user_obj.add_call(method1_call)
user_obj.add_call(method2_call)
put_on_timeline(user_obj, init_call, method1_call, se1, method2_call,
se2)
assert_equal_types(assertions_for_interaction(user_obj), [
UserObject, EqualAssertionLine, EqualAssertionLine,
EqualAssertionLine, EqualAssertionLine, ImmutableObject,
ImmutableObject
])
def test_generates_side_effect_line_for_user_object_attribute_change(self):
klass = Class("UserClass", module=Module(None, 'user_module'))
user_obj = UserObject(None, klass)
assign = Assign('user_obj', user_obj, 1)
se = AttributeRebind(user_obj, 'attr', create(ImmutableObject, obj=1))
assert_equal_strings("user_obj = UserClass()\nuser_obj.attr = 1\n",
generate_test_contents([assign, se], None))
def test_code_of_method(self):
klass = Class('Class', module=self.module)
method = Method('method', klass=klass)
method_code = object()
self.code_tree.add_object(method, method_code)
assert_equal(method_code, code_of(method))
def visit_class(self, name, bases, body):
visitor = descend(body.children, ClassVisitor)
if is_test_class(name, bases):
methods = [TestMethod(n, c) for (n, a, c) in visitor.methods]
klass = TestClass(name=name, test_cases=methods, code=body)
else:
methods = [create_definition(n, a, c, Method) for (n, a, c) in visitor.methods]
klass = Class(name=name, methods=methods, bases=bases)
self.objects.append(klass)
self.past_imports = True
def test_properly_gathers_all_input_and_output_values_of_a_method_call(self):
self._init_project("class SomeClass:\n def some_method(self, x): return x + 1\n",
"from module import SomeClass\nSomeClass().some_method(42)\n")
method = Method("some_method")
klass = Class("SomeClass", methods=[method])
self.project["module"].objects = [klass]
inspect_point_of_entry(self.poe)
user_object = assert_one_element_and_return(klass.user_objects)
call = assert_one_element_and_return(user_object.calls)
assert_call({'x': 42}, 43, call)
def test_clear_previous_run_removes_user_objects_from_classes(self):
klass = Class('SomeClass')
self._create_project_with_two_points_of_entry(klass)
obj1 = inject_user_object(self.first, 1, klass)
obj2 = inject_user_object(self.first, 2, klass)
obj3 = inject_user_object(self.second, 1, klass)
self.first.clear_previous_run()
# Only the UserObject from the second POE remains.
assert_equal_sets([obj3], klass.user_objects)
def ClassWithMethods(classname, methods, call_type='output'):
"""call_type has to be one of 'output', 'exception' or 'generator'.
"""
execution = EmptyProjectExecution()
method_objects = []
method_calls = []
klass = Class(classname, methods=method_objects)
user_object = UserObject(None, klass)
for name, calls in methods:
method = Method(name, ['self'] + flatten([a.keys() for a,_ in calls]),
is_generator=(call_type=='generator'))
method_objects.append(method)
for args, output in calls:
method_calls.append(create_method_call(method, args, output, call_type, execution, user_object))
klass.add_methods(method_objects)
user_object.calls = method_calls
klass.add_user_object(user_object)
return klass
def test_clear_previous_run_removes_generator_objects_from_functions(self):
function = Function('generator', is_generator=True)
method = Method('generator_method', is_generator=True)
klass = Class('ClassWithGenerators', methods=[method])
self._create_project_with_two_points_of_entry(function, klass)
user_object = inject_user_object(self.first, 1, klass)
inject_generator_object(self.first, 2, function, {}, function)
inject_generator_object(self.first, 3, method, {}, user_object)
self.first.clear_previous_run()
assert_equal([], klass.user_objects)
assert_equal([], function.calls)
def test_can_be_saved_and_restored_from_file(self):
project = ProjectInDirectory(self.tmpdir).with_modules(
["good_module.py", "bad_module.py"])
project['good_module'].add_objects(
[Class("AClass", [Method("amethod")]),
Function("afunction")])
project['bad_module'].errors = ["Syntax error"]
project.save()
project = Project.from_directory(project.path)
assert_equal(2, len(project.get_modules()))
assert_equal(2, len(project['good_module'].objects))
assert_equal(["AClass"], get_names(project['good_module'].classes))
assert_equal(["amethod"],
get_names(project['good_module'].classes[0].methods))
assert_equal(["afunction"],
get_names(project['good_module'].functions))
assert_equal(["Syntax error"], project['bad_module'].errors)
def test_handles_generator_methods(self):
def function_calling_generator_method():
class GenClass(object):
def genmeth(self):
yield 0
yield 1
yield 0
[x for x in GenClass().genmeth()]
execution = TestingProject()\
.with_all_catch_module()\
.with_object(Class("GenClass", methods=[Method("genmeth", is_generator=True)]))\
.make_new_execution()
inspect_code_in_context(function_calling_generator_method, execution)
klass = execution.project.find_object(Class, "GenClass")
user_object = assert_one_element_and_return(klass.user_objects)
assert_instance(user_object, UserObject)
gobject = assert_one_element_and_return(user_object.calls)
assert_generator_object({}, [0, 1, 0], gobject)
def top():
obj = Class()
first(2)
obj.do_something()
def test_code_of_class(self):
klass = Class('Class', module=self.module)
class_code = object()
self.code_tree.add_object(klass, class_code)
assert_equal(class_code, code_of(klass))
def __init__(self, name):
Class.__init__(self, name)
self._methods = {}
def function_calling_a_method():
class Class(object):
def method(self):
pass
Class().method()
def __init__(self, name):
Class.__init__(self, name)
self._methods = {}
def top():
obj = Class()
first(2)
obj.do_something()
def setUp(self):
project = EmptyProject()
self.module = Module(project=project, subpath='module.py')
self.klass = Class('Klass', module=self.module)
self.tclass = TestClass('TClass', parent=self.module)