def test_add_function(provide_callables_from_fixtures_modules):
config.INSTANCE.object_reuse_probability = 0.0
test_case = dtc.DefaultTestCase()
generic_function = gao.GenericFunction(
function=provide_callables_from_fixtures_modules["triangle"],
inferred_signature=InferredSignature(
signature=Signature(parameters=[
Parameter(name="x",
kind=Parameter.POSITIONAL_OR_KEYWORD,
annotation=int),
Parameter(name="y",
kind=Parameter.POSITIONAL_OR_KEYWORD,
annotation=int),
Parameter(name="z",
kind=Parameter.POSITIONAL_OR_KEYWORD,
annotation=int),
]),
return_type=None,
parameters={
"x": int,
"y": int,
"z": int
},
),
)
cluster = MagicMock(TestCluster)
cluster.select_concrete_type.side_effect = lambda x: x
factory = tf.TestFactory(cluster)
result = factory.add_function(test_case, generic_function, position=0)
assert isinstance(result.variable_type, type(None))
assert test_case.size() <= 4
def test_attempt_generation_for_none_type_with_no_probability(
test_cluster_mock):
config.INSTANCE.none_probability = 0.0
factory = tf.TestFactory(test_cluster_mock)
result = factory._attempt_generation(dtc.DefaultTestCase(),
MagicMock(tf.TestFactory), 0, 0, True)
assert result is None
def test_attempt_generation_for_none_type(test_cluster_mock):
config.configuration.none_probability = 1.0
factory = tf.TestFactory(test_cluster_mock)
result = factory._attempt_generation(
dtc.DefaultTestCase(), MagicMock(tf.TestFactory), 0, 0, True
)
assert result.distance == 0
def test_add_primitive(test_case_mock):
statement = MagicMock(prim.PrimitiveStatement)
statement.clone.return_value = statement
factory = tf.TestFactory(MagicMock(TestCluster))
factory.add_primitive(test_case_mock, statement)
statement.clone.assert_called_once()
test_case_mock.add_statement.assert_called_once()
def test_add_method(provide_callables_from_fixtures_modules,
test_cluster_mock):
test_case = dtc.DefaultTestCase()
object_ = Monkey("foo")
methods = inspect.getmembers(object_, inspect.ismethod)
generic_method = gao.GenericMethod(
owner=provide_callables_from_fixtures_modules["Monkey"],
method=methods[3][1],
inferred_signature=InferredSignature(
signature=Signature(parameters=[
Parameter(
name="sentence",
kind=Parameter.POSITIONAL_OR_KEYWORD,
annotation=str,
),
]),
return_type=provide_callables_from_fixtures_modules["Monkey"],
parameters={"sentence": str},
),
)
test_cluster_mock.select_concrete_type.side_effect = lambda x: x
factory = tf.TestFactory(test_cluster_mock)
config.INSTANCE.none_probability = 1.0
result = factory.add_method(test_case, generic_method, position=0)
assert result.variable_type == provide_callables_from_fixtures_modules[
"Monkey"]
assert test_case.size() == 3
def test_insert_random_call_success(test_case_mock):
test_cluster = MagicMock(TestCluster)
acc = MagicMock(gao.GenericAccessibleObject)
test_cluster.get_random_accessible.return_value = acc
test_factory = tf.TestFactory(test_cluster)
with mock.patch.object(test_factory, "append_generic_statement") as append_mock:
assert test_factory.insert_random_call(test_case_mock, 0)
append_mock.assert_called_with(test_case_mock, acc, 0)
def test_add_call_for_unknown(method_mock, variable_reference_mock, test_case_mock):
test_cluster = MagicMock(TestCluster)
test_factory = tf.TestFactory(test_cluster)
unknown = MagicMock(gao.GenericAccessibleObject)
unknown.is_method.return_value = False
unknown.is_field.return_value = False
with pytest.raises(RuntimeError):
test_factory.add_call_for(test_case_mock, variable_reference_mock, unknown, 0)
def __init__(self, executor: TestCaseExecutor,
test_cluster: TestCluster) -> None:
"""
:param test_cluster: A cluster storing the available types and methods for
test generation"""
self._executor = executor
self._test_cluster = test_cluster
self._test_factory = tf.TestFactory(test_cluster)
def test_insert_random_call_on_object_at_no_accessible(
test_case_mock, variable_reference_mock):
test_cluster = MagicMock(TestCluster)
test_cluster.get_random_call_for.side_effect = ConstructionFailedException(
)
test_factory = tf.TestFactory(test_cluster)
variable_reference_mock.variable_type = float
assert not test_factory.insert_random_call_on_object_at(
test_case_mock, variable_reference_mock, 0)
def test_insert_random_call_on_object_at_assertion(test_case_mock,
variable_reference_mock):
test_cluster = MagicMock(TestCluster)
test_factory = tf.TestFactory(test_cluster)
variable_reference_mock.variable_type = None
with pytest.raises(AssertionError):
test_factory.insert_random_call_on_object_at(test_case_mock,
variable_reference_mock,
0)
def test_create_primitive(type_, statement_type):
factory = tf.TestFactory(MagicMock(TestCluster))
result = factory._create_primitive(
dtc.DefaultTestCase(),
type_,
position=0,
recursion_depth=0,
)
assert result.variable_type == statement_type
def test_change_random_call_primitive(function_mock):
test_case = dtc.DefaultTestCase()
float_prim = prim.FloatPrimitiveStatement(test_case, 5.0)
test_case.add_statement(float_prim)
test_cluster = MagicMock(TestCluster)
test_cluster.get_generators_for.return_value = {function_mock}
test_factory = tf.TestFactory(test_cluster)
assert not test_factory.change_random_call(test_case, float_prim)
def test__get_possible_calls_no_match(test_case_mock, function_mock):
cluster = MagicMock(TestCluster)
cluster.get_generators_for.return_value = {function_mock}
assert (
tf.TestFactory(cluster)._get_possible_calls(
float, [vri.VariableReferenceImpl(test_case_mock, int)]
)
== []
)
def test_insert_random_call_on_object_no_success():
test_case = dtc.DefaultTestCase()
test_cluster = MagicMock(TestCluster)
test_cluster.num_accessible_objects_under_test.return_value = 0
test_factory = tf.TestFactory(test_cluster)
with mock.patch.object(test_factory,
"_select_random_variable_for_call") as select_mock:
select_mock.return_value = None
assert not test_factory.insert_random_call_on_object(test_case, 0)
select_mock.assert_called_with(test_case, 0)
def test_change_call_function(function_mock):
test_case = dtc.DefaultTestCase()
test_case.add_statement(prim.FloatPrimitiveStatement(test_case, 3.5))
to_replace = prim.NoneStatement(test_case, float)
test_case.add_statement(to_replace)
test_cluster = MagicMock(TestCluster)
test_factory = tf.TestFactory(test_cluster)
test_factory.change_call(test_case, to_replace, function_mock)
assert test_case.statements[1].accessible_object() == function_mock
assert test_case.statements[1].return_value is to_replace.return_value
def test_attempt_generation_for_type(test_case_mock):
def mock_method(t, g, position, recursion_depth, allow_none):
assert position == 0
assert recursion_depth == 1
assert allow_none
factory = tf.TestFactory(MagicMock(TestCluster))
factory.append_generic_statement = mock_method
factory._attempt_generation_for_type(
test_case_mock, 0, 0, True, {MagicMock(gao.GenericAccessibleObject)})
def test_add_call_for_method(method_mock, variable_reference_mock, test_case_mock):
test_cluster = MagicMock(TestCluster)
test_factory = tf.TestFactory(test_cluster)
with mock.patch.object(test_factory, "add_method") as add_field:
assert test_factory.add_call_for(
test_case_mock, variable_reference_mock, method_mock, 0
)
add_field.assert_called_with(
test_case_mock, method_mock, 0, callee=variable_reference_mock
)
def test_insert_random_call_on_object_at_success(test_case_mock,
variable_reference_mock,
result):
test_cluster = MagicMock(TestCluster)
test_factory = tf.TestFactory(test_cluster)
variable_reference_mock.variable_type = float
with mock.patch.object(test_factory, "add_call_for") as call_mock:
call_mock.return_value = result
assert (test_factory.insert_random_call_on_object_at(
test_case_mock, variable_reference_mock, 0) == result)
def test_change_call_method(constructor_mock, method_mock):
test_case = dtc.DefaultTestCase()
test_case.add_statement(par_stmt.ConstructorStatement(test_case, constructor_mock))
test_case.add_statement(prim.IntPrimitiveStatement(test_case, 3))
to_replace = prim.NoneStatement(test_case, float)
test_case.add_statement(to_replace)
test_cluster = MagicMock(TestCluster)
test_factory = tf.TestFactory(test_cluster)
test_factory.change_call(test_case, to_replace, method_mock)
assert test_case.statements[2].accessible_object() == method_mock
assert test_case.statements[2].return_value is to_replace.return_value
def __init__(self, executor: TestCaseExecutor, test_cluster: TestCluster) -> None:
"""Initialises the test-generation strategy.
Args:
executor: The executor the execute the generated test cases
test_cluster: A cluster storing the available types and methods for test
generation
"""
self._executor = executor
self._test_cluster = test_cluster
self._test_factory = tf.TestFactory(test_cluster)
def test_attempt_generation_for_type_from_cluster(test_case_mock):
def mock_method(t, position, recursion_depth, allow_none, type_generators):
assert position == 0
assert recursion_depth == 0
assert allow_none
assert isinstance(type_generators, gao.GenericAccessibleObject)
cluster = TestCluster()
cluster.get_generators_for = lambda t: MagicMock(gao.GenericAccessibleObject)
factory = tf.TestFactory(cluster)
factory._attempt_generation_for_type = mock_method
factory._attempt_generation(test_case_mock, MagicMock(tf.TestFactory), 0, 0, True)
def test_insert_random_statement_empty_call():
test_case = dtc.DefaultTestCase()
test_cluster = MagicMock(TestCluster)
test_cluster.num_accessible_objects_under_test.return_value = 1
test_factory = tf.TestFactory(test_cluster)
with mock.patch("pynguin.utils.randomness.next_float") as float_mock:
float_mock.return_value = 0.0
with mock.patch.object(test_factory, "insert_random_call") as ins_mock:
ins_mock.return_value = True
assert (test_factory.insert_random_statement(
test_case, test_case.size()) == 0)
ins_mock.assert_called_with(test_case, 0)
def test_change_call_unknown():
test_case = dtc.DefaultTestCase()
test_case.add_statement(prim.FloatPrimitiveStatement(test_case, 3.5))
to_replace = prim.NoneStatement(test_case, float)
test_case.add_statement(to_replace)
test_cluster = MagicMock(TestCluster)
test_factory = tf.TestFactory(test_cluster)
acc = MagicMock(gao.GenericAccessibleObject)
acc.is_method.return_value = False
acc.is_constructor.return_value = False
acc.is_function.return_value = False
with pytest.raises(AssertionError):
test_factory.change_call(test_case, to_replace, acc)
def test_insert_random_statement_no_success():
test_case = dtc.DefaultTestCase()
test_case.add_statement(prim.IntPrimitiveStatement(test_case, 5))
test_cluster = MagicMock(TestCluster)
test_cluster.num_accessible_objects_under_test.return_value = 1
test_factory = tf.TestFactory(test_cluster)
with mock.patch("pynguin.utils.randomness.next_float") as float_mock:
float_mock.return_value = 0.0
with mock.patch.object(test_factory, "insert_random_call") as ins_mock:
ins_mock.return_value = False
assert (test_factory.insert_random_statement(
test_case, test_case.size()) == -1)
assert ins_mock.call_args_list[0].args[1] in range(
test_case.size() + 1)
def test_insert_random_call_on_object_success(variable_reference_mock):
test_case = dtc.DefaultTestCase()
test_cluster = MagicMock(TestCluster)
test_factory = tf.TestFactory(test_cluster)
with mock.patch.object(test_factory,
"_select_random_variable_for_call") as select_mock:
select_mock.return_value = variable_reference_mock
with mock.patch.object(
test_factory,
"insert_random_call_on_object_at") as insert_mock:
insert_mock.return_value = True
assert test_factory.insert_random_call_on_object(test_case, 0)
select_mock.assert_called_with(test_case, 0)
insert_mock.assert_called_with(test_case, variable_reference_mock,
0)
def test_append_statement(test_case_mock, statement):
called = False
def mock_method(t, s, position=0, allow_none=True):
nonlocal called
called = True
factory = tf.TestFactory(MagicMock(TestCluster))
factory.add_constructor = mock_method
factory.add_method = mock_method
factory.add_function = mock_method
factory.add_field = mock_method
factory.add_primitive = mock_method
factory.append_statement(test_case_mock, statement)
assert called
def test_append_generic_statement(test_case_mock, statement):
called = False
def mock_method(t, s, position=0, allow_none=True, recursion_depth=11):
nonlocal called
called = True
return None
factory = tf.TestFactory(MagicMock(TestCluster))
factory.add_constructor = mock_method
factory.add_method = mock_method
factory.add_function = mock_method
factory.add_field = mock_method
factory.add_primitive = mock_method
result = factory.append_generic_statement(test_case_mock, statement)
assert result is None
assert called
def test_insert_random_call_rollback(test_case_mock):
def side_effect(tc, f, p, callee=None):
tc.add_statement(prim.IntPrimitiveStatement(tc, 5), position=p)
tc.add_statement(prim.IntPrimitiveStatement(tc, 5), position=p)
tc.add_statement(prim.IntPrimitiveStatement(tc, 5), position=p)
raise ConstructionFailedException()
test_case = dtc.DefaultTestCase()
int0 = prim.IntPrimitiveStatement(test_case, 3)
test_case.add_statement(int0)
test_cluster = MagicMock(TestCluster)
test_factory = tf.TestFactory(test_cluster)
with mock.patch.object(test_factory,
"append_generic_statement") as append_generic_mock:
append_generic_mock.side_effect = side_effect
assert not test_factory.insert_random_call(test_case, 0)
assert test_case.statements == [int0]
def test_add_call_for_rollback(method_mock, variable_reference_mock):
def side_effect(tc, f, p, callee=None):
tc.add_statement(prim.IntPrimitiveStatement(tc, 5), position=p)
tc.add_statement(prim.IntPrimitiveStatement(tc, 5), position=p)
tc.add_statement(prim.IntPrimitiveStatement(tc, 5), position=p)
raise ConstructionFailedException()
test_case = dtc.DefaultTestCase()
int0 = prim.IntPrimitiveStatement(test_case, 3)
test_case.add_statement(int0)
test_cluster = MagicMock(TestCluster)
test_factory = tf.TestFactory(test_cluster)
with mock.patch.object(test_factory, "add_method") as add_field:
add_field.side_effect = side_effect
assert not test_factory.add_call_for(
test_case, variable_reference_mock, method_mock, 0)
assert test_case.statements == [int0]
def test_change_random_call_success(function_mock, method_mock,
constructor_mock):
test_case = dtc.DefaultTestCase()
float_prim = prim.FloatPrimitiveStatement(test_case, 5.0)
int0 = prim.IntPrimitiveStatement(test_case, 2)
float_function1 = par_stmt.FunctionStatement(test_case, function_mock,
[float_prim.return_value])
const = par_stmt.ConstructorStatement(test_case, constructor_mock)
test_case.add_statement(float_prim)
test_case.add_statement(int0)
test_case.add_statement(const)
test_case.add_statement(float_function1)
test_cluster = MagicMock(TestCluster)
test_cluster.get_generators_for.return_value = {function_mock, method_mock}
test_factory = tf.TestFactory(test_cluster)
with mock.patch.object(test_factory, "change_call") as change_mock:
assert test_factory.change_random_call(test_case, float_function1)
change_mock.assert_called_with(test_case, float_function1, method_mock)