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_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_creates_setup_and_teardown_for_two_different_global_read_side_effects(
self):
call = create(FunctionCall, args={})
old_value = ImmutableObject('old_value')
se = GlobalRead('mod', 'var', old_value)
se2 = GlobalRead('mod', 'other_var', old_value)
call.add_side_effect(se)
call.add_side_effect(se2)
put_on_timeline(se, se2, call, call.output)
timeline = assertions_for_interaction(call)
varSetup1, varSetup2, varTeardown = assert_timeline_length_and_return_elements(
filter_out_objects(timeline), 7, [2, 3, 5])
assert_assignment_with_module_variable_reference(
varSetup1, 'old_mod_var', 'mod', 'var')
assert_assignment(varSetup2, 'mod.var', old_value)
assert_assignment(varTeardown, 'mod.var', 'old_mod_var')
otherVarSetup1, otherVarSetup2, otherVarTeardown = assert_timeline_length_and_return_elements(
filter_out_objects(timeline), 7, [0, 1, 6])
assert_assignment_with_module_variable_reference(
otherVarSetup1, 'old_mod_other_var', 'mod', 'other_var')
assert_assignment(otherVarSetup2, 'mod.other_var', old_value)
assert_assignment(otherVarTeardown, 'mod.other_var',
'old_mod_other_var')
def test_assertion_gets_timestamp_075_higher_than_the_last_call_action(self):
se = SideEffect([self.alist], [])
self.call.add_side_effect(se)
put_on_timeline(self.call, self.alist, se)
assertion_lines = all_of_type(assertions_for_interaction(self.call), Line)
assertion = assert_one_element_and_return(assertion_lines)
assert_equal(se.timestamp+0.75, assertion.timestamp)
def test_returns_one_assertion_if_output_object_didnt_exist_before_the_call(self):
put_on_timeline(self.call, self.alist)
assertion_lines = all_of_type(assertions_for_interaction(self.call), Line)
assertion = assert_one_element_and_return(assertion_lines)
assert_is_equal_assertion_line(assertion, expected_a_copy=True,
expected=self.call.output,
actual=self.call)
assert assertion.timestamp > self.call.timestamp
def test_assertion_gets_timestamp_075_higher_than_the_last_call_action(
self):
se = SideEffect([self.alist], [])
self.call.add_side_effect(se)
put_on_timeline(self.call, self.alist, se)
assertion_lines = all_of_type(assertions_for_interaction(self.call),
Line)
assertion = assert_one_element_and_return(assertion_lines)
assert_equal(se.timestamp + 0.75, assertion.timestamp)
def test_returns_two_assertions_if_output_object_existed_before_the_call(self):
put_on_timeline(self.alist, self.call)
assertion_lines = all_of_type(assertions_for_interaction(self.call), Line)
assert_length(assertion_lines, 2)
assert_is_equal_assertion_line(assertion_lines[0],
expected=self.call.output, actual=self.call)
assert_is_equal_assertion_line(assertion_lines[1], expected_a_copy=True,
expected=self.call.output, actual=self.call.output)
assert assertion_lines[0].timestamp < assertion_lines[1].timestamp
def test_returns_one_assertion_if_output_object_didnt_exist_before_the_call(
self):
put_on_timeline(self.call, self.alist)
assertion_lines = all_of_type(assertions_for_interaction(self.call),
Line)
assertion = assert_one_element_and_return(assertion_lines)
assert_is_equal_assertion_line(assertion,
expected_a_copy=True,
expected=self.call.output,
actual=self.call)
assert assertion.timestamp > self.call.timestamp
def test_creates_assertion_for_global_rebind_side_effect(self):
call = create(FunctionCall, args={})
new_value = ImmutableObject('new_value')
se = GlobalRebind('mod', 'var', new_value)
call.add_side_effect(se)
put_on_timeline(se, call, call.output)
timeline = assertions_for_interaction(call)
assert_length(timeline, 4)
rebind_assertion = timeline[2]
assert_equal(new_value, rebind_assertion.expected)
assert_module_variable_reference(rebind_assertion.actual, 'mod', 'var')
def test_creates_assertion_for_global_rebind_side_effect(self):
call = create(FunctionCall, args={})
new_value = ImmutableObject('new_value')
se = GlobalRebind('mod', 'var', new_value)
call.add_side_effect(se)
put_on_timeline(se, call, call.output)
timeline = assertions_for_interaction(call)
assert_length(timeline, 4)
rebind_assertion = timeline[2]
assert_equal(new_value, rebind_assertion.expected)
assert_module_variable_reference(rebind_assertion.actual, 'mod', 'var')
def test_names_globals_from_submodules_properly(self):
call = create(FunctionCall, args={})
old_value = ImmutableObject('old_value')
se = GlobalRead('mod.submod', 'var', old_value)
call.add_side_effect(se)
put_on_timeline(se, call, call.output)
timeline = assertions_for_interaction(call)
setup_1, setup_2, teardown = assert_timeline_length_and_return_elements(
filter_out_objects(timeline), 4, [0, 1, 3])
assert_assignment_with_module_variable_reference(setup_1, 'old_mod_submod_var', 'mod.submod', 'var')
assert_assignment(setup_2, 'mod.submod.var', old_value)
assert_assignment(teardown, 'mod.submod.var', 'old_mod_submod_var')
def test_object_copy_includes_its_side_effects(self):
se = SideEffect([self.alist], [])
self.call.add_side_effect(se)
put_on_timeline(self.alist, se, self.call)
timeline = assertions_for_interaction(self.call)
alists = all_of_type(timeline, SequenceObject)
assert_length(alists, 2)
assert alists[0] is not alists[1]
side_effects = all_of_type(timeline, SideEffect)
side_effect = assert_one_element_and_return(side_effects)
assert alists[1] in side_effect.affected_objects
def test_names_globals_from_submodules_properly(self):
call = create(FunctionCall, args={})
old_value = ImmutableObject('old_value')
se = GlobalRead('mod.submod', 'var', old_value)
call.add_side_effect(se)
put_on_timeline(se, call, call.output)
timeline = assertions_for_interaction(call)
setup_1, setup_2, teardown = assert_timeline_length_and_return_elements(
filter_out_objects(timeline), 4, [0, 1, 3])
assert_assignment_with_module_variable_reference(
setup_1, 'old_mod_submod_var', 'mod.submod', 'var')
assert_assignment(setup_2, 'mod.submod.var', old_value)
assert_assignment(teardown, 'mod.submod.var', 'old_mod_submod_var')
def test_object_copy_includes_its_side_effects(self):
se = SideEffect([self.alist], [])
self.call.add_side_effect(se)
put_on_timeline(self.alist, se, self.call)
timeline = assertions_for_interaction(self.call)
alists = all_of_type(timeline, SequenceObject)
assert_length(alists, 2)
assert alists[0] is not alists[1]
side_effects = all_of_type(timeline, SideEffect)
side_effect = assert_one_element_and_return(side_effects)
assert alists[1] in side_effect.affected_objects
def test_creates_only_one_setup_and_teardown_for_multiple_global_read_side_effects_of_the_same_variable(self):
call = create(FunctionCall, args={})
old_value = ImmutableObject('old_value')
se = GlobalRead('mod', 'var', old_value)
se2 = GlobalRead('mod', 'var', old_value)
call.add_side_effect(se)
call.add_side_effect(se2)
put_on_timeline(se, se2, call, call.output)
timeline = assertions_for_interaction(call)
setup_1, setup_2, teardown = assert_timeline_length_and_return_elements(
filter_out_objects(timeline), 4, [0, 1, 3])
assert_assignment_with_module_variable_reference(setup_1, 'old_mod_var', 'mod', 'var')
assert_assignment(setup_2, 'mod.var', old_value)
assert_assignment(teardown, 'mod.var', 'old_mod_var')
def test_returns_two_assertions_if_output_object_existed_before_the_call(
self):
put_on_timeline(self.alist, self.call)
assertion_lines = all_of_type(assertions_for_interaction(self.call),
Line)
assert_length(assertion_lines, 2)
assert_is_equal_assertion_line(assertion_lines[0],
expected=self.call.output,
actual=self.call)
assert_is_equal_assertion_line(assertion_lines[1],
expected_a_copy=True,
expected=self.call.output,
actual=self.call.output)
assert assertion_lines[0].timestamp < assertion_lines[1].timestamp
def test_creates_only_one_setup_and_teardown_for_multiple_global_read_side_effects_of_the_same_variable(
self):
call = create(FunctionCall, args={})
old_value = ImmutableObject('old_value')
se = GlobalRead('mod', 'var', old_value)
se2 = GlobalRead('mod', 'var', old_value)
call.add_side_effect(se)
call.add_side_effect(se2)
put_on_timeline(se, se2, call, call.output)
timeline = assertions_for_interaction(call)
setup_1, setup_2, teardown = assert_timeline_length_and_return_elements(
filter_out_objects(timeline), 4, [0, 1, 3])
assert_assignment_with_module_variable_reference(
setup_1, 'old_mod_var', 'mod', 'var')
assert_assignment(setup_2, 'mod.var', old_value)
assert_assignment(teardown, 'mod.var', 'old_mod_var')
def generate_test_case(testable_interaction, template):
"""This functions binds all other functions from generator submodules
together (assertions, cleaner, optimizer, objects_namer and builder),
implementing full test generation process, from a testable interaction
object to a test case string.
Call|UserObject|Method|Function -> assertions_for_interaction ->
[Event] -> remove_objects_unworthy_of_naming ->
[Event] -> optimize ->
[Event] -> name_objects_on_timeline ->
[Event] -> generate_test_contents ->
CodeString
"""
return \
generate_test_contents(
name_objects_on_timeline(
optimize(
remove_objects_unworthy_of_naming(
assertions_for_interaction(testable_interaction)))),
template)
def generate_test_case(testable_interaction, template):
"""This functions binds all other functions from generator submodules
together (assertions, cleaner, optimizer, objects_namer and builder),
implementing full test generation process, from a testable interaction
object to a test case string.
Call|UserObject|Method|Function -> assertions_for_interaction ->
[Event] -> remove_objects_unworthy_of_naming ->
[Event] -> optimize ->
[Event] -> name_objects_on_timeline ->
[Event] -> generate_test_contents ->
CodeString
"""
return \
generate_test_contents(
name_objects_on_timeline(
optimize(
remove_objects_unworthy_of_naming(
assertions_for_interaction(testable_interaction)))),
template)
def test_creates_setup_and_teardown_for_two_different_global_read_side_effects(self):
call = create(FunctionCall, args={})
old_value = ImmutableObject('old_value')
se = GlobalRead('mod', 'var', old_value)
se2 = GlobalRead('mod', 'other_var', old_value)
call.add_side_effect(se)
call.add_side_effect(se2)
put_on_timeline(se, se2, call, call.output)
timeline = assertions_for_interaction(call)
varSetup1, varSetup2, varTeardown = assert_timeline_length_and_return_elements(
filter_out_objects(timeline), 7, [2, 3, 5])
assert_assignment_with_module_variable_reference(varSetup1, 'old_mod_var', 'mod', 'var')
assert_assignment(varSetup2, 'mod.var', old_value)
assert_assignment(varTeardown, 'mod.var', 'old_mod_var')
otherVarSetup1, otherVarSetup2, otherVarTeardown = assert_timeline_length_and_return_elements(
filter_out_objects(timeline), 7, [0, 1, 6])
assert_assignment_with_module_variable_reference(otherVarSetup1, 'old_mod_other_var', 'mod', 'other_var')
assert_assignment(otherVarSetup2, 'mod.other_var', old_value)
assert_assignment(otherVarTeardown, 'mod.other_var', 'old_mod_other_var')