from collections import deque 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_recursive(self): schema = { "definitions": { "node": { "anyOf": [{ "type": "object", "required": ["name", "children"], "properties": { "name": { "type": "string", }, "children": { "type": "object", "patternProperties": { "^.*$": { "$ref": "#/definitions/node", }, }, }, }, }], }, }, "type": "object", "required": ["root"], "properties": { "root": {"$ref": "#/definitions/node"}, } } instance = { "root": { "name": "root", "children": { "a": { "name": "a", "children": { "ab": { "name": "ab", # missing "children" } } }, }, }, } validator = Draft4Validator(schema) e, = validator.iter_errors(instance) self.assertEqual(e.absolute_path, deque(["root"])) self.assertEqual( e.absolute_schema_path, deque(["properties", "root", "anyOf"]), ) e1, = e.context self.assertEqual(e1.absolute_path, deque(["root", "children", "a"])) self.assertEqual( e1.absolute_schema_path, deque( [ "properties", "root", "anyOf", 0, "properties", "children", "patternProperties", "^.*$", "anyOf", ], ), ) e2, = e1.context self.assertEqual( e2.absolute_path, deque( ["root", "children", "a", "children", "ab"], ), ) self.assertEqual( e2.absolute_schema_path, deque( [ "properties", "root", "anyOf", 0, "properties", "children", "patternProperties", "^.*$", "anyOf", 0, "properties", "children", "patternProperties", "^.*$", "anyOf" ], ), ) 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 = {"$ref" : mock.Mock()} with mock.patch.object(resolver, "resolve") as resolve: resolve.return_value = "url", {"type": "integer"} with self.assertRaises(ValidationError): self.validator_class(schema, resolver=resolver).validate(None) resolve.assert_called_once_with(schema["$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": "http://bar/schema#", "a": {"foo": "bar"}} resolver = RefResolver.from_schema(schema) with resolver.resolving("#/a") as resolved: self.assertEqual(resolved, schema["a"]) with resolver.resolving("http://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") self.assertEqual(resolver.resolution_scope, "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, "") self.assertEqual(resolver.resolution_scope, "") 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 self.assertEqual(foo_handler.call_count, 1) 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 test_helpful_error_message_on_failed_pop_scope(self): resolver = RefResolver("", {}) resolver.pop_scope() with self.assertRaises(RefResolutionError) as exc: resolver.pop_scope() self.assertIn("Failed to pop the scope", str(exc.exception)) 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)