def test_map_attr_value_when_direction_nor_target_set_should_raise_exception(
self):
with self.assertRaises(ValueError) as context:
ObjectMapper.from_class(
TestClassSomePropertyEmptyInit1,
TestClassSomePropertyEmptyInit2).map_attr_value(
"some_property", "some_value", None, None)
def test_map_unknown_class_should_raise_exception(self):
try:
ObjectMapper.from_class(TestEmptyClass1,
TestEmptyClass2).map(TestOtherClass())
self.fail("Should raise ValueError")
except ValueError as er:
assert_that(er.args[0]).contains(TestOtherClass.__name__)
def test_map_unknown_property_should_raise_exception(self):
# given
mapper = ObjectMapper.from_class(
TestClassSomeProperty1, TestClassMappedProperty).custom_mappings(
{"some_property": "unknown"})
# when
try:
mapper.map(TestClassSomeProperty1(some_property="some_value"))
self.fail("Should raise AttributeError")
except AttributeError as er:
# then
assert_that(er.args[0]).contains("unknown")
# given
mapper = ObjectMapper.from_class(
TestClassSomeProperty1, TestClassMappedProperty).custom_mappings(
{"unknown": "mapped_property"})
# when
try:
mapper.map(TestClassSomeProperty1(some_property="some_value"))
self.fail("Should raise AttributeError")
except AttributeError as er:
# then
assert_that(er.args[0]).contains("unknown")
def test_map_attr_value_when_attr_name_unknown_should_raise_exception_rev(
self):
# when
with self.assertRaises(ValueError) as context:
ObjectMapper.from_class(TestClassSomePropertyEmptyInit1, TestClassSomePropertyEmptyInit2).\
map_attr_value("unknown_property", "some_value", MappingDirection.right_to_left)
# then
assert_that(context.exception.args[0]).contains("unknown_property")
def test_object_mapper_value_converters_when_converter_not_callable_should_raise_exception(
self):
with self.assertRaises(ValueError) as context:
ObjectMapper.from_class(
TestClassSomePropertyEmptyInit1,
TestClassSomePropertyEmptyInit2).value_converters(
{"some_property_02": (lambda val: 7, "not_a_function")})
assert_that(context.exception.args[0]).contains("some_property_02")
def test_object_mapper_value_converters_when_converter_not_in_2_element_tuple_should_raise_exception(
self):
with self.assertRaises(ValueError) as context:
ObjectMapper.from_class(
TestClassSomePropertyEmptyInit1,
TestClassSomePropertyEmptyInit2).value_converters(
{"some_property_02": (lambda val: 7, )})
assert_that(context.exception.message).contains("some_property_02")
def test_map_attr_value_when_opposite_direction_should_raise_exception_rev(
self):
# when
with self.assertRaises(ValueError) as context:
ObjectMapper.from_class(TestClassSomePropertyEmptyInit1, TestClassMappedPropertyEmptyInit).\
custom_mappings({"some_property_02": "mapped_property_02"}).\
map_attr_value("mapped_property_02", "some_value", MappingDirection.left_to_right)
# then
assert_that(context.exception.args[0]).contains("mapped_property_02")
assert_that(context.exception.args[0]).contains("left_to_right")
def test_map_attr_value_when_opposite_direction_for_class_should_raise_exception(
self):
# when
with self.assertRaises(ValueError) as context:
ObjectMapper.from_class(TestClassSomePropertyEmptyInit1, TestClassMappedPropertyEmptyInit).\
custom_mappings({"some_property_02": "mapped_property_02"}).\
map_attr_value("some_property_02", "some_value", target_class=TestClassSomePropertyEmptyInit1)
# then
assert_that(context.exception.message).contains("some_property_02")
assert_that(context.exception.message).contains(
"TestClassSomePropertyEmptyInit1")
def test_map_explicit_when_ambiguous_nested_mapping_should_raise_exception(self):
# given
root_mapper = ObjectMapper.from_class(dict, TestClassMappedProperty).\
custom_mappings({"some_property": "mapped_property"})
root_mapper.nested_mapper(ObjectMapper.from_class(dict, TestClassSomePropertyEmptyInit2))
root_mapper.nested_mapper(ObjectMapper.from_class(dict, TestClassSomeProperty2))
# when
with self.assertRaises(ConfigurationException) as context:
root_mapper.map(dict(some_property=dict()))
# then
assert_that(context.exception.message).contains("some_property")
assert_that(context.exception.message).contains("mapped_property")
assert_that(context.exception.message).contains("dict")
def test_map_attr_name_for_implicit_mapping(self):
# given
mapper = ObjectMapper.from_class(TestClassSomePropertyEmptyInit1,
TestClassSomePropertyEmptyInit2)
# then
assert_that(
mapper.map_attr_name("some_property")).is_equal_to("some_property")
assert_that(mapper.map_attr_name("some_property_02")).is_equal_to(
"some_property_02")
assert_that(mapper.map_attr_name("some_property_03")).is_equal_to(
"some_property_03")
# when
with self.assertRaises(ValueError) as context:
mapper.map_attr_name("unmapped_property1")
# then
assert_that(context.exception.args[0]).contains("unmapped_property1")
# when
with self.assertRaises(ValueError) as context:
mapper.map_attr_name("unmapped_property2")
# then
assert_that(context.exception.args[0]).contains("unmapped_property2")
def test_map_multiple_explicit_properties(self):
# given
mapper = ObjectMapper.from_class(dict, TestClassMappedProperty).custom_mappings(
{"some_property": "mapped_property",
"some_property_02": "mapped_property_02",
"some_property_03": "mapped_property_03"})
# when
mapped_object = mapper.map(dict(
some_property="some_value",
some_property_02="some_value_02",
some_property_03="some_value_03",
unmapped_property1="unmapped_value"))
# then
assert_that(mapped_object).is_instance_of(TestClassMappedProperty)
assert_that(mapped_object.mapped_property).is_equal_to("some_value")
assert_that(mapped_object.mapped_property_02).is_equal_to("some_value_02")
assert_that(mapped_object.mapped_property_03).is_equal_to("some_value_03")
assert_that(mapped_object.unmapped_property2).is_none()
# when
mapped_object_rev = mapper.map(TestClassMappedProperty(
mapped_property="other_value",
mapped_property_02="other_value_02",
mapped_property_03="other_value_03",
unmapped_property2="unmapped_value"))
# then
assert_that(mapped_object_rev).is_instance_of(dict)
assert_that(mapped_object_rev['some_property']).is_equal_to("other_value")
assert_that(mapped_object_rev['some_property_02']).is_equal_to("other_value_02")
assert_that(mapped_object_rev['some_property_03']).is_equal_to("other_value_03")
assert_that(mapped_object_rev).does_not_contain_key('unmapped_property1')
def test_suppress_implicit_mapping(self):
# given
mapper = ObjectMapper.from_class(TestClassSomePropertyEmptyInit1, TestClassSomePropertyEmptyInit2).\
custom_mappings({"some_property": None})
# when
mapped_object = mapper.map(
TestClassSomePropertyEmptyInit1(some_property="some_value",
some_property_02="some_value_02"))
# then
assert_that(mapped_object).is_instance_of(
TestClassSomePropertyEmptyInit2)
assert_that(mapped_object.some_property).is_none()
assert_that(
mapped_object.some_property_02).is_equal_to("some_value_02")
# when
mapped_object_rev = mapper.map(
TestClassSomePropertyEmptyInit2(some_property="some_value",
some_property_02="some_value_02"))
# then
assert_that(mapped_object_rev).is_instance_of(
TestClassSomePropertyEmptyInit1)
assert_that(mapped_object_rev.some_property).is_none()
assert_that(
mapped_object_rev.some_property_02).is_equal_to("some_value_02")
def test_map_attr_value_rev(self):
# when
mapped_value = ObjectMapper.from_class(TestClassSomePropertyEmptyInit1, TestClassMappedPropertyEmptyInit).\
custom_mappings({"some_property_02": "mapped_property_02"}).\
map_attr_value("mapped_property_02", "some_value", MappingDirection.right_to_left)
# then
assert_that(mapped_value).is_equal_to("some_value")
def test_map_attr_value_for_target_class_rev(self):
# when
mapped_value = ObjectMapper.from_class(TestClassSomePropertyEmptyInit1, TestClassMappedPropertyEmptyInit).\
custom_mappings({"some_property_02": "mapped_property_02"}).\
map_attr_value("mapped_property_02", "some_value", target_class=TestClassSomePropertyEmptyInit1)
# then
assert_that(mapped_value).is_equal_to("some_value")
def test_map_attr_name_for_empty_classes_should_raise_exception(self):
# given
mapper = ObjectMapper.from_class(TestEmptyClass1, TestEmptyClass1)
with self.assertRaises(ValueError) as context:
# when
mapper.map_attr_name("unmapped_property")
# then
assert_that(context.exception.args[0]).contains("unmapped_property")
def test_map_with_option_fail_on_get_attr(self):
# given
mapper = ObjectMapper.from_class(
TestClassSomeProperty1, TestEmptyClass1).custom_mappings({
"some_property":
"non_existing_property"
}).options(MapperOptions.fail_on_get_attr == False)
# when
mapped_object = mapper.map(TestEmptyClass1())
# then
assert_that(mapped_object).is_instance_of(TestClassSomeProperty1)
assert_that(mapped_object.some_property).is_none()
# given
mapper_rev = ObjectMapper.from_class(
TestEmptyClass1, TestClassSomeProperty1).custom_mappings({
"non_existing_property":
"some_property"
}).options(MapperOptions.fail_on_get_attr == False)
# when
mapped_object_rev = mapper_rev.map(TestEmptyClass1())
# then
assert_that(mapped_object_rev).is_instance_of(TestClassSomeProperty1)
assert_that(mapped_object_rev.some_property).is_none()
# given
mapper_strict = ObjectMapper.from_class(
TestClassSomeProperty1, TestEmptyClass1).custom_mappings({
"some_property":
"non_existing_property"
}).options(MapperOptions.fail_on_get_attr == True)
try:
# when
mapper_strict.map(TestEmptyClass1())
self.fail("Should raise AttributeError")
except AttributeError as er:
assert_that(er.args[0]).contains("non_existing_property")
def test_nested_mapper_when_the_same_mapper_added_should_raise_exception(
self):
# given
root_mapper = ObjectMapper.from_class(TestClassSomeProperty1,
TestClassSomeProperty2)
root_mapper.nested_mapper(
ObjectMapper.from_class(TestClassSomePropertyEmptyInit1,
TestClassSomePropertyEmptyInit2))
# when
with self.assertRaises(ConfigurationException) as context:
root_mapper.nested_mapper(
ObjectMapper.from_class(TestClassSomePropertyEmptyInit1,
TestClassSomePropertyEmptyInit2))
# then
assert_that(context.exception.args[0]).contains(
TestClassSomePropertyEmptyInit1.__name__)
assert_that(context.exception.args[0]).contains(
TestClassSomePropertyEmptyInit2.__name__)
def test_nested_mapper_when_wrong_param_type_should_raise_exception(self):
# given
root_mapper = ObjectMapper.from_class(TestClassSomeProperty1,
TestClassSomeProperty2)
# when
with self.assertRaises(ValueError) as context:
root_mapper.nested_mapper(object())
# then
assert_that(context.exception.args[0]).contains(ObjectMapper.__name__)
assert_that(context.exception.args[0]).contains("object")
def test_map_attr_name_for_explicit_mapping(self):
# given
mapper = ObjectMapper.from_class(
TestClassSomeProperty1, TestClassMappedProperty).custom_mappings(
{"some_property": "mapped_property"})
# then
assert_that(mapper.map_attr_name("some_property")).is_equal_to(
"mapped_property")
# then
assert_that(mapper.map_attr_name("mapped_property")).is_equal_to(
"some_property")
def test_object_mapper_map_with_value_converter_and_default_mapping(self):
# given
mapper = ObjectMapper.from_class(
TestClassSomePropertyEmptyInit1,
TestClassSomePropertyEmptyInit2).value_converters(
{"some_property_02": (lambda val: 7, lambda val: 9)})
# then
assert_that(mapper.map(TestClassSomePropertyEmptyInit1(some_property_02="some_val")).some_property_02).\
is_equal_to(7)
assert_that(mapper.map(TestClassSomePropertyEmptyInit2(some_property_02="some_other_val")).some_property_02). \
is_equal_to(9)
def test_map_attr_name_for_unmapped_explicit_property_should_raise_exception(
self):
# given
mapper = ObjectMapper.from_class(
TestClassSomeProperty1, TestClassMappedProperty).custom_mappings(
{"some_property": "mapped_property"})
with self.assertRaises(ValueError) as context:
# when
mapper.map_attr_name("unmapped_property")
# then
assert_that(context.exception.args[0]).contains("unmapped_property")
def test_map_one_explicit_property_rev(self):
# given
mapper = ObjectMapper.from_class(dict, TestClassSomeProperty1).custom_mappings(
{"mapped_property": "some_property"})
# when
mapped_object = mapper.map(TestClassSomeProperty1(some_property="some_value"))
# then
assert_that(mapped_object).is_instance_of(dict)
assert_that(mapped_object['mapped_property']).is_equal_to("some_value")
# when
mapped_object_rev = mapper.map(dict(mapped_property="other_value"))
# then
assert_that(mapped_object_rev).is_instance_of(TestClassSomeProperty1)
assert_that(mapped_object_rev.some_property).is_equal_to("other_value")
def test_map_override_implicit_mapping(self):
# given
mapper = ObjectMapper.from_class(TestClassSomePropertyEmptyInit1, TestClassSomePropertyEmptyInit2).\
custom_mappings(
{"some_property_02": "some_property_03",
"some_property_03": "some_property_02"})
# when
mapped_object = mapper.map(
TestClassSomePropertyEmptyInit1(
some_property="some_value",
some_property_02="some_value_02",
some_property_03="some_value_03",
unmapped_property1="unmapped_value"))
# then
assert_that(mapped_object).is_instance_of(
TestClassSomePropertyEmptyInit2)
assert_that(mapped_object.some_property).is_equal_to("some_value")
assert_that(
mapped_object.some_property_02).is_equal_to("some_value_03")
assert_that(
mapped_object.some_property_03).is_equal_to("some_value_02")
assert_that(mapped_object.unmapped_property2).is_none()
# when
mapped_object_rev = mapper.map(
TestClassSomePropertyEmptyInit2(
some_property="some_value",
some_property_02="some_value_02",
some_property_03="some_value_03",
unmapped_property2="unmapped_value"))
# then
assert_that(mapped_object_rev).is_instance_of(
TestClassSomePropertyEmptyInit1)
assert_that(mapped_object_rev.some_property).is_equal_to("some_value")
assert_that(
mapped_object_rev.some_property_02).is_equal_to("some_value_03")
assert_that(
mapped_object_rev.some_property_03).is_equal_to("some_value_02")
assert_that(mapped_object_rev.unmapped_property1).is_none()
def test_object_mapper_map_attr_value(self):
# given
mapper = ObjectMapper.from_class(
TestClassSomePropertyEmptyInit1,
TestClassMappedPropertyEmptyInit).custom_mappings({
"some_property_02":
"mapped_property_02"
}).value_converters(
{"some_property_02": (lambda val: 7, lambda val: 9)})
# when
assert_that(
mapper.map_attr_value(
"some_property_02",
"val",
target_class=TestClassMappedPropertyEmptyInit)).is_equal_to(7)
assert_that(
mapper.map_attr_value(
"mapped_property_02",
"some_value",
target_class=TestClassSomePropertyEmptyInit1)).is_equal_to(9)
def test_map_with_custom_right_initializers(self):
# given
mapper = ObjectMapper.from_class(TestClassSomePropertyEmptyInit1, TestClassMappedPropertyEmptyInit).\
right_initializers(
{
"mapped_property": lambda obj: obj.some_property + obj.some_property_02,
"unmapped_property2": lambda obj: "prefix_{}".format(obj.unmapped_property1)})
# when
mapped_object = mapper.map(
TestClassSomePropertyEmptyInit1(
some_property="some_value",
some_property_02="some_value_02",
unmapped_property1="unmapped_value"))
assert_that(mapped_object).is_instance_of(
TestClassMappedPropertyEmptyInit)
assert_that(mapped_object.mapped_property).is_equal_to(
"some_valuesome_value_02")
assert_that(mapped_object.unmapped_property2).is_equal_to(
"prefix_unmapped_value")
def test_map_with_reversed_nested_mapper_should_not_use_nested_mapper(
self):
# given
root_mapper = ObjectMapper.from_prototype(
TestClassSomeProperty1(TestClassSomePropertyEmptyInit1()),
TestClassSomeProperty2(TestClassSomePropertyEmptyInit2()))
root_mapper.nested_mapper(
ObjectMapper.from_class(TestClassSomePropertyEmptyInit2,
TestClassSomePropertyEmptyInit1))
# when
mapped_object = root_mapper.map(
TestClassSomeProperty1(
some_property=TestClassSomePropertyEmptyInit1(
some_property="nested_value")))
# then
assert_that(mapped_object).is_instance_of(TestClassSomeProperty2)
assert_that(mapped_object.some_property).is_instance_of(
TestClassSomePropertyEmptyInit1)
assert_that(mapped_object.some_property.some_property).is_equal_to(
"nested_value")
def test_map_empty_to_empty_dict(self):
assert_that(ObjectMapper.from_class(TestEmptyClass1, dict).map(TestEmptyClass1())).is_instance_of(dict)
assert_that(ObjectMapper.from_class(TestEmptyClass1, dict).map({})).is_instance_of(TestEmptyClass1)
def test_map_with_nested_explicit_mapper(self):
# given
root_mapper = ObjectMapper.from_prototype(TestClassSomeProperty1(None),
TestClassSomeProperty2(None))
root_mapper.nested_mapper(
ObjectMapper.from_class(TestClassSomePropertyEmptyInit1,
TestClassSomePropertyEmptyInit2))
# when
mapped_object = root_mapper.map(
TestClassSomeProperty1(
some_property="some_value",
some_property_02=TestClassSomePropertyEmptyInit1(
some_property="nested_value",
some_property_02="nested_value_02",
some_property_03="nested_value_03",
unmapped_property1="unmapped_nested_value"),
some_property_03="some_value_03",
unmapped_property1="unmapped_value"))
# then
assert_that(mapped_object).is_instance_of(TestClassSomeProperty2)
assert_that(mapped_object.some_property).is_equal_to("some_value")
assert_that(
mapped_object.some_property_03).is_equal_to("some_value_03")
assert_that(mapped_object.unmapped_property2).is_none()
nested_mapped_obj = mapped_object.some_property_02
assert_that(nested_mapped_obj).is_instance_of(
TestClassSomePropertyEmptyInit2)
assert_that(
nested_mapped_obj.some_property).is_equal_to("nested_value")
assert_that(
nested_mapped_obj.some_property_02).is_equal_to("nested_value_02")
assert_that(
nested_mapped_obj.some_property_03).is_equal_to("nested_value_03")
assert_that(nested_mapped_obj.unmapped_property2).is_none()
# when
mapped_object_rev = root_mapper.map(
TestClassSomeProperty2(
some_property="some_value",
some_property_02=TestClassSomePropertyEmptyInit2(
some_property="nested_value",
some_property_02="nested_value_02",
some_property_03="nested_value_03",
unmapped_property2="unmapped_nested_value"),
some_property_03="some_value_03",
unmapped_property2="unmapped_value"))
# then
assert_that(mapped_object_rev).is_instance_of(TestClassSomeProperty1)
assert_that(mapped_object_rev.some_property).is_equal_to("some_value")
assert_that(
mapped_object_rev.some_property_03).is_equal_to("some_value_03")
assert_that(mapped_object_rev.unmapped_property1).is_none()
nested_mapped_obj_rev = mapped_object_rev.some_property_02
assert_that(nested_mapped_obj_rev).is_instance_of(
TestClassSomePropertyEmptyInit1)
assert_that(
nested_mapped_obj_rev.some_property).is_equal_to("nested_value")
assert_that(nested_mapped_obj_rev.some_property_02).is_equal_to(
"nested_value_02")
assert_that(nested_mapped_obj_rev.some_property_03).is_equal_to(
"nested_value_03")
assert_that(nested_mapped_obj_rev.unmapped_property1).is_none()
def test_map_empty_to_empty(self):
assert_that(ObjectMapper.from_class(TestEmptyClass1, TestEmptyClass2).map(TestEmptyClass1())).\
is_instance_of(TestEmptyClass2)
assert_that(ObjectMapper.from_class(TestEmptyClass1, TestEmptyClass2).map(TestEmptyClass2())).\
is_instance_of(TestEmptyClass1)