diff options
Diffstat (limited to 'lib/spack/external/jsonschema/tests/test_validators.py')
| -rw-r--r-- | lib/spack/external/jsonschema/tests/test_validators.py | 786 |
1 files changed, 786 insertions, 0 deletions
diff --git a/lib/spack/external/jsonschema/tests/test_validators.py b/lib/spack/external/jsonschema/tests/test_validators.py new file mode 100644 index 0000000000..f8692388ea --- /dev/null +++ b/lib/spack/external/jsonschema/tests/test_validators.py @@ -0,0 +1,786 @@ +from collections import deque +from contextlib import contextmanager +import json + +from jsonschema import FormatChecker, ValidationError +from jsonschema.tests.compat import mock, unittest +from jsonschema.validators import ( + RefResolutionError, UnknownType, Draft3Validator, + Draft4Validator, RefResolver, create, extend, validator_for, validate, +) + + +class TestCreateAndExtend(unittest.TestCase): + def setUp(self): + self.meta_schema = {u"properties" : {u"smelly" : {}}} + self.smelly = mock.MagicMock() + self.validators = {u"smelly" : self.smelly} + self.types = {u"dict" : dict} + self.Validator = create( + meta_schema=self.meta_schema, + validators=self.validators, + default_types=self.types, + ) + + self.validator_value = 12 + self.schema = {u"smelly" : self.validator_value} + self.validator = self.Validator(self.schema) + + def test_attrs(self): + self.assertEqual(self.Validator.VALIDATORS, self.validators) + self.assertEqual(self.Validator.META_SCHEMA, self.meta_schema) + self.assertEqual(self.Validator.DEFAULT_TYPES, self.types) + + def test_init(self): + self.assertEqual(self.validator.schema, self.schema) + + def test_iter_errors(self): + instance = "hello" + + self.smelly.return_value = [] + self.assertEqual(list(self.validator.iter_errors(instance)), []) + + error = mock.Mock() + self.smelly.return_value = [error] + self.assertEqual(list(self.validator.iter_errors(instance)), [error]) + + self.smelly.assert_called_with( + self.validator, self.validator_value, instance, self.schema, + ) + + def test_if_a_version_is_provided_it_is_registered(self): + with mock.patch("jsonschema.validators.validates") as validates: + validates.side_effect = lambda version : lambda cls : cls + Validator = create(meta_schema={u"id" : ""}, version="my version") + validates.assert_called_once_with("my version") + self.assertEqual(Validator.__name__, "MyVersionValidator") + + def test_if_a_version_is_not_provided_it_is_not_registered(self): + with mock.patch("jsonschema.validators.validates") as validates: + create(meta_schema={u"id" : "id"}) + self.assertFalse(validates.called) + + def test_extend(self): + validators = dict(self.Validator.VALIDATORS) + new = mock.Mock() + + Extended = extend(self.Validator, validators={u"a new one" : new}) + + validators.update([(u"a new one", new)]) + self.assertEqual(Extended.VALIDATORS, validators) + self.assertNotIn(u"a new one", self.Validator.VALIDATORS) + + self.assertEqual(Extended.META_SCHEMA, self.Validator.META_SCHEMA) + self.assertEqual(Extended.DEFAULT_TYPES, self.Validator.DEFAULT_TYPES) + + +class TestIterErrors(unittest.TestCase): + def setUp(self): + self.validator = Draft3Validator({}) + + def test_iter_errors(self): + instance = [1, 2] + schema = { + u"disallow" : u"array", + u"enum" : [["a", "b", "c"], ["d", "e", "f"]], + u"minItems" : 3 + } + + got = (e.message for e in self.validator.iter_errors(instance, schema)) + expected = [ + "%r is disallowed for [1, 2]" % (schema["disallow"],), + "[1, 2] is too short", + "[1, 2] is not one of %r" % (schema["enum"],), + ] + self.assertEqual(sorted(got), sorted(expected)) + + def test_iter_errors_multiple_failures_one_validator(self): + instance = {"foo" : 2, "bar" : [1], "baz" : 15, "quux" : "spam"} + schema = { + u"properties" : { + "foo" : {u"type" : "string"}, + "bar" : {u"minItems" : 2}, + "baz" : {u"maximum" : 10, u"enum" : [2, 4, 6, 8]}, + } + } + + errors = list(self.validator.iter_errors(instance, schema)) + self.assertEqual(len(errors), 4) + + +class TestValidationErrorMessages(unittest.TestCase): + def message_for(self, instance, schema, *args, **kwargs): + kwargs.setdefault("cls", Draft3Validator) + with self.assertRaises(ValidationError) as e: + validate(instance, schema, *args, **kwargs) + return e.exception.message + + def test_single_type_failure(self): + message = self.message_for(instance=1, schema={u"type" : u"string"}) + self.assertEqual(message, "1 is not of type %r" % u"string") + + def test_single_type_list_failure(self): + message = self.message_for(instance=1, schema={u"type" : [u"string"]}) + self.assertEqual(message, "1 is not of type %r" % u"string") + + def test_multiple_type_failure(self): + types = u"string", u"object" + message = self.message_for(instance=1, schema={u"type" : list(types)}) + self.assertEqual(message, "1 is not of type %r, %r" % types) + + def test_object_without_title_type_failure(self): + type = {u"type" : [{u"minimum" : 3}]} + message = self.message_for(instance=1, schema={u"type" : [type]}) + self.assertEqual(message, "1 is not of type %r" % (type,)) + + def test_object_with_name_type_failure(self): + name = "Foo" + schema = {u"type" : [{u"name" : name, u"minimum" : 3}]} + message = self.message_for(instance=1, schema=schema) + self.assertEqual(message, "1 is not of type %r" % (name,)) + + def test_minimum(self): + message = self.message_for(instance=1, schema={"minimum" : 2}) + self.assertEqual(message, "1 is less than the minimum of 2") + + def test_maximum(self): + message = self.message_for(instance=1, schema={"maximum" : 0}) + self.assertEqual(message, "1 is greater than the maximum of 0") + + def test_dependencies_failure_has_single_element_not_list(self): + depend, on = "bar", "foo" + schema = {u"dependencies" : {depend : on}} + message = self.message_for({"bar" : 2}, schema) + self.assertEqual(message, "%r is a dependency of %r" % (on, depend)) + + def test_additionalItems_single_failure(self): + message = self.message_for( + [2], {u"items" : [], u"additionalItems" : False}, + ) + self.assertIn("(2 was unexpected)", message) + + def test_additionalItems_multiple_failures(self): + message = self.message_for( + [1, 2, 3], {u"items" : [], u"additionalItems" : False} + ) + self.assertIn("(1, 2, 3 were unexpected)", message) + + def test_additionalProperties_single_failure(self): + additional = "foo" + schema = {u"additionalProperties" : False} + message = self.message_for({additional : 2}, schema) + self.assertIn("(%r was unexpected)" % (additional,), message) + + def test_additionalProperties_multiple_failures(self): + schema = {u"additionalProperties" : False} + message = self.message_for(dict.fromkeys(["foo", "bar"]), schema) + + self.assertIn(repr("foo"), message) + self.assertIn(repr("bar"), message) + self.assertIn("were unexpected)", message) + + def test_invalid_format_default_message(self): + checker = FormatChecker(formats=()) + check_fn = mock.Mock(return_value=False) + checker.checks(u"thing")(check_fn) + + schema = {u"format" : u"thing"} + message = self.message_for("bla", schema, format_checker=checker) + + self.assertIn(repr("bla"), message) + self.assertIn(repr("thing"), message) + self.assertIn("is not a", message) + + +class TestValidationErrorDetails(unittest.TestCase): + # TODO: These really need unit tests for each individual validator, rather + # than just these higher level tests. + def test_anyOf(self): + instance = 5 + schema = { + "anyOf": [ + {"minimum": 20}, + {"type": "string"} + ] + } + + validator = Draft4Validator(schema) + errors = list(validator.iter_errors(instance)) + self.assertEqual(len(errors), 1) + e = errors[0] + + self.assertEqual(e.validator, "anyOf") + self.assertEqual(e.validator_value, schema["anyOf"]) + self.assertEqual(e.instance, instance) + self.assertEqual(e.schema, schema) + self.assertIsNone(e.parent) + + self.assertEqual(e.path, deque([])) + self.assertEqual(e.relative_path, deque([])) + self.assertEqual(e.absolute_path, deque([])) + + self.assertEqual(e.schema_path, deque(["anyOf"])) + self.assertEqual(e.relative_schema_path, deque(["anyOf"])) + self.assertEqual(e.absolute_schema_path, deque(["anyOf"])) + + self.assertEqual(len(e.context), 2) + + e1, e2 = sorted_errors(e.context) + + self.assertEqual(e1.validator, "minimum") + self.assertEqual(e1.validator_value, schema["anyOf"][0]["minimum"]) + self.assertEqual(e1.instance, instance) + self.assertEqual(e1.schema, schema["anyOf"][0]) + self.assertIs(e1.parent, e) + + self.assertEqual(e1.path, deque([])) + self.assertEqual(e1.absolute_path, deque([])) + self.assertEqual(e1.relative_path, deque([])) + + self.assertEqual(e1.schema_path, deque([0, "minimum"])) + self.assertEqual(e1.relative_schema_path, deque([0, "minimum"])) + self.assertEqual( + e1.absolute_schema_path, deque(["anyOf", 0, "minimum"]), + ) + + self.assertFalse(e1.context) + + self.assertEqual(e2.validator, "type") + self.assertEqual(e2.validator_value, schema["anyOf"][1]["type"]) + self.assertEqual(e2.instance, instance) + self.assertEqual(e2.schema, schema["anyOf"][1]) + self.assertIs(e2.parent, e) + + self.assertEqual(e2.path, deque([])) + self.assertEqual(e2.relative_path, deque([])) + self.assertEqual(e2.absolute_path, deque([])) + + self.assertEqual(e2.schema_path, deque([1, "type"])) + self.assertEqual(e2.relative_schema_path, deque([1, "type"])) + self.assertEqual(e2.absolute_schema_path, deque(["anyOf", 1, "type"])) + + self.assertEqual(len(e2.context), 0) + + def test_type(self): + instance = {"foo": 1} + schema = { + "type": [ + {"type": "integer"}, + { + "type": "object", + "properties": { + "foo": {"enum": [2]} + } + } + ] + } + + validator = Draft3Validator(schema) + errors = list(validator.iter_errors(instance)) + self.assertEqual(len(errors), 1) + e = errors[0] + + self.assertEqual(e.validator, "type") + self.assertEqual(e.validator_value, schema["type"]) + self.assertEqual(e.instance, instance) + self.assertEqual(e.schema, schema) + self.assertIsNone(e.parent) + + self.assertEqual(e.path, deque([])) + self.assertEqual(e.relative_path, deque([])) + self.assertEqual(e.absolute_path, deque([])) + + self.assertEqual(e.schema_path, deque(["type"])) + self.assertEqual(e.relative_schema_path, deque(["type"])) + self.assertEqual(e.absolute_schema_path, deque(["type"])) + + self.assertEqual(len(e.context), 2) + + e1, e2 = sorted_errors(e.context) + + self.assertEqual(e1.validator, "type") + self.assertEqual(e1.validator_value, schema["type"][0]["type"]) + self.assertEqual(e1.instance, instance) + self.assertEqual(e1.schema, schema["type"][0]) + self.assertIs(e1.parent, e) + + self.assertEqual(e1.path, deque([])) + self.assertEqual(e1.relative_path, deque([])) + self.assertEqual(e1.absolute_path, deque([])) + + self.assertEqual(e1.schema_path, deque([0, "type"])) + self.assertEqual(e1.relative_schema_path, deque([0, "type"])) + self.assertEqual(e1.absolute_schema_path, deque(["type", 0, "type"])) + + self.assertFalse(e1.context) + + self.assertEqual(e2.validator, "enum") + self.assertEqual(e2.validator_value, [2]) + self.assertEqual(e2.instance, 1) + self.assertEqual(e2.schema, {u"enum" : [2]}) + self.assertIs(e2.parent, e) + + self.assertEqual(e2.path, deque(["foo"])) + self.assertEqual(e2.relative_path, deque(["foo"])) + self.assertEqual(e2.absolute_path, deque(["foo"])) + + self.assertEqual( + e2.schema_path, deque([1, "properties", "foo", "enum"]), + ) + self.assertEqual( + e2.relative_schema_path, deque([1, "properties", "foo", "enum"]), + ) + self.assertEqual( + e2.absolute_schema_path, + deque(["type", 1, "properties", "foo", "enum"]), + ) + + self.assertFalse(e2.context) + + def test_single_nesting(self): + instance = {"foo" : 2, "bar" : [1], "baz" : 15, "quux" : "spam"} + schema = { + "properties" : { + "foo" : {"type" : "string"}, + "bar" : {"minItems" : 2}, + "baz" : {"maximum" : 10, "enum" : [2, 4, 6, 8]}, + } + } + + validator = Draft3Validator(schema) + errors = validator.iter_errors(instance) + e1, e2, e3, e4 = sorted_errors(errors) + + self.assertEqual(e1.path, deque(["bar"])) + self.assertEqual(e2.path, deque(["baz"])) + self.assertEqual(e3.path, deque(["baz"])) + self.assertEqual(e4.path, deque(["foo"])) + + self.assertEqual(e1.relative_path, deque(["bar"])) + self.assertEqual(e2.relative_path, deque(["baz"])) + self.assertEqual(e3.relative_path, deque(["baz"])) + self.assertEqual(e4.relative_path, deque(["foo"])) + + self.assertEqual(e1.absolute_path, deque(["bar"])) + self.assertEqual(e2.absolute_path, deque(["baz"])) + self.assertEqual(e3.absolute_path, deque(["baz"])) + self.assertEqual(e4.absolute_path, deque(["foo"])) + + self.assertEqual(e1.validator, "minItems") + self.assertEqual(e2.validator, "enum") + self.assertEqual(e3.validator, "maximum") + self.assertEqual(e4.validator, "type") + + def test_multiple_nesting(self): + instance = [1, {"foo" : 2, "bar" : {"baz" : [1]}}, "quux"] + schema = { + "type" : "string", + "items" : { + "type" : ["string", "object"], + "properties" : { + "foo" : {"enum" : [1, 3]}, + "bar" : { + "type" : "array", + "properties" : { + "bar" : {"required" : True}, + "baz" : {"minItems" : 2}, + } + } + } + } + } + + validator = Draft3Validator(schema) + errors = validator.iter_errors(instance) + e1, e2, e3, e4, e5, e6 = sorted_errors(errors) + + self.assertEqual(e1.path, deque([])) + self.assertEqual(e2.path, deque([0])) + self.assertEqual(e3.path, deque([1, "bar"])) + self.assertEqual(e4.path, deque([1, "bar", "bar"])) + self.assertEqual(e5.path, deque([1, "bar", "baz"])) + self.assertEqual(e6.path, deque([1, "foo"])) + + self.assertEqual(e1.schema_path, deque(["type"])) + self.assertEqual(e2.schema_path, deque(["items", "type"])) + self.assertEqual( + list(e3.schema_path), ["items", "properties", "bar", "type"], + ) + self.assertEqual( + list(e4.schema_path), + ["items", "properties", "bar", "properties", "bar", "required"], + ) + self.assertEqual( + list(e5.schema_path), + ["items", "properties", "bar", "properties", "baz", "minItems"] + ) + self.assertEqual( + list(e6.schema_path), ["items", "properties", "foo", "enum"], + ) + + self.assertEqual(e1.validator, "type") + self.assertEqual(e2.validator, "type") + self.assertEqual(e3.validator, "type") + self.assertEqual(e4.validator, "required") + self.assertEqual(e5.validator, "minItems") + self.assertEqual(e6.validator, "enum") + + def test_additionalProperties(self): + instance = {"bar": "bar", "foo": 2} + schema = { + "additionalProperties" : {"type": "integer", "minimum": 5} + } + + validator = Draft3Validator(schema) + errors = validator.iter_errors(instance) + e1, e2 = sorted_errors(errors) + + self.assertEqual(e1.path, deque(["bar"])) + self.assertEqual(e2.path, deque(["foo"])) + + self.assertEqual(e1.validator, "type") + self.assertEqual(e2.validator, "minimum") + + def test_patternProperties(self): + instance = {"bar": 1, "foo": 2} + schema = { + "patternProperties" : { + "bar": {"type": "string"}, + "foo": {"minimum": 5} + } + } + + validator = Draft3Validator(schema) + errors = validator.iter_errors(instance) + e1, e2 = sorted_errors(errors) + + self.assertEqual(e1.path, deque(["bar"])) + self.assertEqual(e2.path, deque(["foo"])) + + self.assertEqual(e1.validator, "type") + self.assertEqual(e2.validator, "minimum") + + def test_additionalItems(self): + instance = ["foo", 1] + schema = { + "items": [], + "additionalItems" : {"type": "integer", "minimum": 5} + } + + validator = Draft3Validator(schema) + errors = validator.iter_errors(instance) + e1, e2 = sorted_errors(errors) + + self.assertEqual(e1.path, deque([0])) + self.assertEqual(e2.path, deque([1])) + + self.assertEqual(e1.validator, "type") + self.assertEqual(e2.validator, "minimum") + + def test_additionalItems_with_items(self): + instance = ["foo", "bar", 1] + schema = { + "items": [{}], + "additionalItems" : {"type": "integer", "minimum": 5} + } + + validator = Draft3Validator(schema) + errors = validator.iter_errors(instance) + e1, e2 = sorted_errors(errors) + + self.assertEqual(e1.path, deque([1])) + self.assertEqual(e2.path, deque([2])) + + self.assertEqual(e1.validator, "type") + self.assertEqual(e2.validator, "minimum") + + +class ValidatorTestMixin(object): + def setUp(self): + self.instance = mock.Mock() + self.schema = {} + self.resolver = mock.Mock() + self.validator = self.validator_class(self.schema) + + def test_valid_instances_are_valid(self): + errors = iter([]) + + with mock.patch.object( + self.validator, "iter_errors", return_value=errors, + ): + self.assertTrue( + self.validator.is_valid(self.instance, self.schema) + ) + + def test_invalid_instances_are_not_valid(self): + errors = iter([mock.Mock()]) + + with mock.patch.object( + self.validator, "iter_errors", return_value=errors, + ): + self.assertFalse( + self.validator.is_valid(self.instance, self.schema) + ) + + def test_non_existent_properties_are_ignored(self): + instance, my_property, my_value = mock.Mock(), mock.Mock(), mock.Mock() + validate(instance=instance, schema={my_property : my_value}) + + def test_it_creates_a_ref_resolver_if_not_provided(self): + self.assertIsInstance(self.validator.resolver, RefResolver) + + def test_it_delegates_to_a_ref_resolver(self): + resolver = RefResolver("", {}) + schema = {"$ref" : mock.Mock()} + + @contextmanager + def resolving(): + yield {"type": "integer"} + + with mock.patch.object(resolver, "resolving") as resolve: + resolve.return_value = resolving() + with self.assertRaises(ValidationError): + self.validator_class(schema, resolver=resolver).validate(None) + + resolve.assert_called_once_with(schema["$ref"]) + + def test_is_type_is_true_for_valid_type(self): + self.assertTrue(self.validator.is_type("foo", "string")) + + def test_is_type_is_false_for_invalid_type(self): + self.assertFalse(self.validator.is_type("foo", "array")) + + def test_is_type_evades_bool_inheriting_from_int(self): + self.assertFalse(self.validator.is_type(True, "integer")) + self.assertFalse(self.validator.is_type(True, "number")) + + def test_is_type_raises_exception_for_unknown_type(self): + with self.assertRaises(UnknownType): + self.validator.is_type("foo", object()) + + +class TestDraft3Validator(ValidatorTestMixin, unittest.TestCase): + validator_class = Draft3Validator + + def test_is_type_is_true_for_any_type(self): + self.assertTrue(self.validator.is_valid(mock.Mock(), {"type": "any"})) + + def test_is_type_does_not_evade_bool_if_it_is_being_tested(self): + self.assertTrue(self.validator.is_type(True, "boolean")) + self.assertTrue(self.validator.is_valid(True, {"type": "any"})) + + def test_non_string_custom_types(self): + schema = {'type': [None]} + cls = self.validator_class(schema, types={None: type(None)}) + cls.validate(None, schema) + + +class TestDraft4Validator(ValidatorTestMixin, unittest.TestCase): + validator_class = Draft4Validator + + +class TestBuiltinFormats(unittest.TestCase): + """ + The built-in (specification-defined) formats do not raise type errors. + + If an instance or value is not a string, it should be ignored. + + """ + + +for format in FormatChecker.checkers: + def test(self, format=format): + v = Draft4Validator({"format": format}, format_checker=FormatChecker()) + v.validate(123) + + name = "test_{0}_ignores_non_strings".format(format) + test.__name__ = name + setattr(TestBuiltinFormats, name, test) + del test # Ugh py.test. Stop discovering top level tests. + + +class TestValidatorFor(unittest.TestCase): + def test_draft_3(self): + schema = {"$schema" : "http://json-schema.org/draft-03/schema"} + self.assertIs(validator_for(schema), Draft3Validator) + + schema = {"$schema" : "http://json-schema.org/draft-03/schema#"} + self.assertIs(validator_for(schema), Draft3Validator) + + def test_draft_4(self): + schema = {"$schema" : "http://json-schema.org/draft-04/schema"} + self.assertIs(validator_for(schema), Draft4Validator) + + schema = {"$schema" : "http://json-schema.org/draft-04/schema#"} + self.assertIs(validator_for(schema), Draft4Validator) + + def test_custom_validator(self): + Validator = create(meta_schema={"id" : "meta schema id"}, version="12") + schema = {"$schema" : "meta schema id"} + self.assertIs(validator_for(schema), Validator) + + def test_validator_for_jsonschema_default(self): + self.assertIs(validator_for({}), Draft4Validator) + + def test_validator_for_custom_default(self): + self.assertIs(validator_for({}, default=None), None) + + +class TestValidate(unittest.TestCase): + def test_draft3_validator_is_chosen(self): + schema = {"$schema" : "http://json-schema.org/draft-03/schema#"} + with mock.patch.object(Draft3Validator, "check_schema") as chk_schema: + validate({}, schema) + chk_schema.assert_called_once_with(schema) + # Make sure it works without the empty fragment + schema = {"$schema" : "http://json-schema.org/draft-03/schema"} + with mock.patch.object(Draft3Validator, "check_schema") as chk_schema: + validate({}, schema) + chk_schema.assert_called_once_with(schema) + + def test_draft4_validator_is_chosen(self): + schema = {"$schema" : "http://json-schema.org/draft-04/schema#"} + with mock.patch.object(Draft4Validator, "check_schema") as chk_schema: + validate({}, schema) + chk_schema.assert_called_once_with(schema) + + def test_draft4_validator_is_the_default(self): + with mock.patch.object(Draft4Validator, "check_schema") as chk_schema: + validate({}, {}) + chk_schema.assert_called_once_with({}) + + +class TestRefResolver(unittest.TestCase): + + base_uri = "" + stored_uri = "foo://stored" + stored_schema = {"stored" : "schema"} + + def setUp(self): + self.referrer = {} + self.store = {self.stored_uri : self.stored_schema} + self.resolver = RefResolver(self.base_uri, self.referrer, self.store) + + def test_it_does_not_retrieve_schema_urls_from_the_network(self): + ref = Draft3Validator.META_SCHEMA["id"] + with mock.patch.object(self.resolver, "resolve_remote") as remote: + with self.resolver.resolving(ref) as resolved: + self.assertEqual(resolved, Draft3Validator.META_SCHEMA) + self.assertFalse(remote.called) + + def test_it_resolves_local_refs(self): + ref = "#/properties/foo" + self.referrer["properties"] = {"foo" : object()} + with self.resolver.resolving(ref) as resolved: + self.assertEqual(resolved, self.referrer["properties"]["foo"]) + + def test_it_resolves_local_refs_with_id(self): + schema = {"id": "foo://bar/schema#", "a": {"foo": "bar"}} + resolver = RefResolver.from_schema(schema) + with resolver.resolving("#/a") as resolved: + self.assertEqual(resolved, schema["a"]) + with resolver.resolving("foo://bar/schema#/a") as resolved: + self.assertEqual(resolved, schema["a"]) + + def test_it_retrieves_stored_refs(self): + with self.resolver.resolving(self.stored_uri) as resolved: + self.assertIs(resolved, self.stored_schema) + + self.resolver.store["cached_ref"] = {"foo" : 12} + with self.resolver.resolving("cached_ref#/foo") as resolved: + self.assertEqual(resolved, 12) + + def test_it_retrieves_unstored_refs_via_requests(self): + ref = "http://bar#baz" + schema = {"baz" : 12} + + with mock.patch("jsonschema.validators.requests") as requests: + requests.get.return_value.json.return_value = schema + with self.resolver.resolving(ref) as resolved: + self.assertEqual(resolved, 12) + requests.get.assert_called_once_with("http://bar") + + def test_it_retrieves_unstored_refs_via_urlopen(self): + ref = "http://bar#baz" + schema = {"baz" : 12} + + with mock.patch("jsonschema.validators.requests", None): + with mock.patch("jsonschema.validators.urlopen") as urlopen: + urlopen.return_value.read.return_value = ( + json.dumps(schema).encode("utf8")) + with self.resolver.resolving(ref) as resolved: + self.assertEqual(resolved, 12) + urlopen.assert_called_once_with("http://bar") + + def test_it_can_construct_a_base_uri_from_a_schema(self): + schema = {"id" : "foo"} + resolver = RefResolver.from_schema(schema) + self.assertEqual(resolver.base_uri, "foo") + with resolver.resolving("") as resolved: + self.assertEqual(resolved, schema) + with resolver.resolving("#") as resolved: + self.assertEqual(resolved, schema) + with resolver.resolving("foo") as resolved: + self.assertEqual(resolved, schema) + with resolver.resolving("foo#") as resolved: + self.assertEqual(resolved, schema) + + def test_it_can_construct_a_base_uri_from_a_schema_without_id(self): + schema = {} + resolver = RefResolver.from_schema(schema) + self.assertEqual(resolver.base_uri, "") + with resolver.resolving("") as resolved: + self.assertEqual(resolved, schema) + with resolver.resolving("#") as resolved: + self.assertEqual(resolved, schema) + + def test_custom_uri_scheme_handlers(self): + schema = {"foo": "bar"} + ref = "foo://bar" + foo_handler = mock.Mock(return_value=schema) + resolver = RefResolver("", {}, handlers={"foo": foo_handler}) + with resolver.resolving(ref) as resolved: + self.assertEqual(resolved, schema) + foo_handler.assert_called_once_with(ref) + + def test_cache_remote_on(self): + ref = "foo://bar" + foo_handler = mock.Mock() + resolver = RefResolver( + "", {}, cache_remote=True, handlers={"foo" : foo_handler}, + ) + with resolver.resolving(ref): + pass + with resolver.resolving(ref): + pass + foo_handler.assert_called_once_with(ref) + + def test_cache_remote_off(self): + ref = "foo://bar" + foo_handler = mock.Mock() + resolver = RefResolver( + "", {}, cache_remote=False, handlers={"foo" : foo_handler}, + ) + with resolver.resolving(ref): + pass + with resolver.resolving(ref): + pass + self.assertEqual(foo_handler.call_count, 2) + + def test_if_you_give_it_junk_you_get_a_resolution_error(self): + ref = "foo://bar" + foo_handler = mock.Mock(side_effect=ValueError("Oh no! What's this?")) + resolver = RefResolver("", {}, handlers={"foo" : foo_handler}) + with self.assertRaises(RefResolutionError) as err: + with resolver.resolving(ref): + pass + self.assertEqual(str(err.exception), "Oh no! What's this?") + + +def sorted_errors(errors): + def key(error): + return ( + [str(e) for e in error.path], + [str(e) for e in error.schema_path] + ) + return sorted(errors, key=key) |