import json

import pytest
from marshmallow import Schema
from marshmallow.fields import DateTime, Dict, Field, List, Nested, String, TimeDelta

from apispec import APISpec
from apispec.exceptions import APISpecError
from apispec.ext.marshmallow import MarshmallowPlugin, common

from .schemas import (
    AnalysisSchema,
    AnalysisWithListSchema,
    DefaultValuesSchema,
    OrderedSchema,
    PatternedObjectSchema,
    PetSchema,
    RunSchema,
    SampleSchema,
    SelfReferencingSchema,
)
from .utils import (
    build_ref,
    get_headers,
    get_parameters,
    get_paths,
    get_responses,
    get_schemas,
)


class TestDefinitionHelper:
    @pytest.mark.parametrize("schema", [PetSchema, PetSchema()])
    def test_can_use_schema_as_definition(self, spec, schema):
        spec.components.schema("Pet", schema=schema)
        definitions = get_schemas(spec)
        props = definitions["Pet"]["properties"]

        assert props["id"]["type"] == "integer"
        assert props["name"]["type"] == "string"

    def test_schema_helper_without_schema(self, spec):
        spec.components.schema("Pet", {"properties": {"key": {"type": "integer"}}})
        definitions = get_schemas(spec)
        assert definitions["Pet"]["properties"] == {"key": {"type": "integer"}}

    @pytest.mark.parametrize("schema", [AnalysisSchema, AnalysisSchema()])
    def test_resolve_schema_dict_auto_reference(self, schema):
        def resolver(schema):
            schema_cls = common.resolve_schema_cls(schema)
            return schema_cls.__name__

        spec = APISpec(
            title="Test auto-reference",
            version="0.1",
            openapi_version="2.0",
            plugins=(MarshmallowPlugin(schema_name_resolver=resolver),),
        )
        with pytest.raises(KeyError):
            get_schemas(spec)

        spec.components.schema("analysis", schema=schema)
        spec.path(
            "/test",
            operations={
                "get": {
                    "responses": {
                        "200": {"schema": build_ref(spec, "schema", "analysis")}
                    }
                }
            },
        )
        definitions = get_schemas(spec)
        assert 3 == len(definitions)

        assert "analysis" in definitions
        assert "SampleSchema" in definitions
        assert "RunSchema" in definitions

    @pytest.mark.parametrize(
        "schema", [AnalysisWithListSchema, AnalysisWithListSchema()]
    )
    def test_resolve_schema_dict_auto_reference_in_list(self, schema):
        def resolver(schema):
            schema_cls = common.resolve_schema_cls(schema)
            return schema_cls.__name__

        spec = APISpec(
            title="Test auto-reference",
            version="0.1",
            openapi_version="2.0",
            plugins=(MarshmallowPlugin(schema_name_resolver=resolver),),
        )
        with pytest.raises(KeyError):
            get_schemas(spec)

        spec.components.schema("analysis", schema=schema)
        spec.path(
            "/test",
            operations={
                "get": {
                    "responses": {
                        "200": {"schema": build_ref(spec, "schema", "analysis")}
                    }
                }
            },
        )
        definitions = get_schemas(spec)
        assert 3 == len(definitions)

        assert "analysis" in definitions
        assert "SampleSchema" in definitions
        assert "RunSchema" in definitions

    @pytest.mark.parametrize("schema", [AnalysisSchema, AnalysisSchema()])
    def test_resolve_schema_dict_auto_reference_return_none(self, schema):
        def resolver(schema):
            return None

        spec = APISpec(
            title="Test auto-reference",
            version="0.1",
            openapi_version="2.0",
            plugins=(MarshmallowPlugin(schema_name_resolver=resolver),),
        )
        with pytest.raises(KeyError):
            get_schemas(spec)

        with pytest.raises(
            APISpecError, match="Name resolver returned None for schema"
        ):
            spec.components.schema("analysis", schema=schema)

    @pytest.mark.parametrize("schema", [AnalysisSchema, AnalysisSchema()])
    def test_warning_when_schema_added_twice(self, spec, schema):
        spec.components.schema("Analysis", schema=schema)
        with pytest.warns(UserWarning, match="has already been added to the spec"):
            spec.components.schema("DuplicateAnalysis", schema=schema)

    def test_schema_instances_with_different_modifiers_added(self, spec):
        class MultiModifierSchema(Schema):
            pet_unmodified = Nested(PetSchema)
            pet_exclude = Nested(PetSchema, exclude=("name",))

        spec.components.schema("Pet", schema=PetSchema())
        spec.components.schema("Pet_Exclude", schema=PetSchema(exclude=("name",)))

        spec.components.schema("MultiModifierSchema", schema=MultiModifierSchema)

        definitions = get_schemas(spec)
        pet_unmodified_ref = definitions["MultiModifierSchema"]["properties"][
            "pet_unmodified"
        ]
        assert pet_unmodified_ref == build_ref(spec, "schema", "Pet")

        pet_exclude = definitions["MultiModifierSchema"]["properties"]["pet_exclude"]
        assert pet_exclude == build_ref(spec, "schema", "Pet_Exclude")

    def test_schema_instance_with_different_modifers_custom_resolver(self, recwarn):
        class MultiModifierSchema(Schema):
            pet_unmodified = Nested(PetSchema)
            pet_exclude = Nested(PetSchema(partial=True))

        def resolver(schema):
            schema_instance = common.resolve_schema_instance(schema)
            prefix = "Partial-" if schema_instance.partial else ""
            schema_cls = common.resolve_schema_cls(schema)
            name = prefix + schema_cls.__name__
            if name.endswith("Schema"):
                return name[:-6] or name
            return name

        spec = APISpec(
            title="Test Custom Resolver for Partial",
            version="0.1",
            openapi_version="2.0",
            plugins=(MarshmallowPlugin(schema_name_resolver=resolver),),
        )

        spec.components.schema("NameClashSchema", schema=MultiModifierSchema)
        assert not recwarn

    def test_schema_with_clashing_names(self, spec):
        class Pet(PetSchema):
            another_field = String()

        class NameClashSchema(Schema):
            pet_1 = Nested(PetSchema)
            pet_2 = Nested(Pet)

        with pytest.warns(
            UserWarning, match="Multiple schemas resolved to the name Pet"
        ):
            spec.components.schema("NameClashSchema", schema=NameClashSchema)

        definitions = get_schemas(spec)

        assert "Pet" in definitions
        assert "Pet1" in definitions

    def test_resolve_nested_schema_many_true_resolver_return_none(self):
        def resolver(schema):
            return None

        class PetFamilySchema(Schema):
            pets_1 = Nested(PetSchema, many=True)
            pets_2 = List(Nested(PetSchema))

        spec = APISpec(
            title="Test auto-reference",
            version="0.1",
            openapi_version="2.0",
            plugins=(MarshmallowPlugin(schema_name_resolver=resolver),),
        )

        spec.components.schema("PetFamily", schema=PetFamilySchema)
        props = get_schemas(spec)["PetFamily"]["properties"]
        pets_1 = props["pets_1"]
        pets_2 = props["pets_2"]
        assert pets_1["type"] == pets_2["type"] == "array"


class TestComponentParameterHelper:
    @pytest.mark.parametrize("schema", [PetSchema, PetSchema()])
    def test_can_use_schema_in_parameter(self, spec, schema):
        param = {"schema": schema}
        spec.components.parameter("Pet", "body", param)
        parameter = get_parameters(spec)["Pet"]
        assert parameter["in"] == "body"
        reference = parameter["schema"]
        assert reference == build_ref(spec, "schema", "Pet")

        resolved_schema = spec.components.schemas["Pet"]
        assert resolved_schema["properties"]["name"]["type"] == "string"
        assert resolved_schema["properties"]["password"]["type"] == "string"
        assert resolved_schema["properties"]["id"]["type"] == "integer"

    @pytest.mark.parametrize("spec", ("3.0.0",), indirect=True)
    @pytest.mark.parametrize("schema", [PetSchema, PetSchema()])
    def test_can_use_schema_in_parameter_with_content(self, spec, schema):
        param = {"content": {"application/json": {"schema": schema}}}
        spec.components.parameter("Pet", "body", param)
        parameter = get_parameters(spec)["Pet"]
        assert parameter["in"] == "body"
        reference = parameter["content"]["application/json"]["schema"]
        assert reference == build_ref(spec, "schema", "Pet")

        resolved_schema = spec.components.schemas["Pet"]
        assert resolved_schema["properties"]["name"]["type"] == "string"
        assert resolved_schema["properties"]["password"]["type"] == "string"
        assert resolved_schema["properties"]["id"]["type"] == "integer"


class TestComponentResponseHelper:
    @pytest.mark.parametrize("schema", [PetSchema, PetSchema()])
    def test_can_use_schema_in_response(self, spec, schema):
        if spec.openapi_version.major < 3:
            resp = {"schema": schema}
        else:
            resp = {"content": {"application/json": {"schema": schema}}}
        spec.components.response("GetPetOk", resp)
        response = get_responses(spec)["GetPetOk"]
        if spec.openapi_version.major < 3:
            reference = response["schema"]
        else:
            reference = response["content"]["application/json"]["schema"]
        assert reference == build_ref(spec, "schema", "Pet")

        resolved_schema = spec.components.schemas["Pet"]
        assert resolved_schema["properties"]["id"]["type"] == "integer"
        assert resolved_schema["properties"]["name"]["type"] == "string"
        assert resolved_schema["properties"]["password"]["type"] == "string"

    @pytest.mark.parametrize("schema", [PetSchema, PetSchema()])
    def test_can_use_schema_in_response_header(self, spec, schema):
        resp = {"headers": {"PetHeader": {"schema": schema}}}
        spec.components.response("GetPetOk", resp)
        response = get_responses(spec)["GetPetOk"]
        reference = response["headers"]["PetHeader"]["schema"]
        assert reference == build_ref(spec, "schema", "Pet")

        resolved_schema = spec.components.schemas["Pet"]
        assert resolved_schema["properties"]["id"]["type"] == "integer"
        assert resolved_schema["properties"]["name"]["type"] == "string"
        assert resolved_schema["properties"]["password"]["type"] == "string"

    @pytest.mark.parametrize("spec", ("3.0.0",), indirect=True)
    def test_content_without_schema(self, spec):
        resp = {"content": {"application/json": {"example": {"name": "Example"}}}}
        spec.components.response("GetPetOk", resp)
        response = get_responses(spec)["GetPetOk"]
        assert response == resp


class TestComponentHeaderHelper:
    @pytest.mark.parametrize("spec", ("3.0.0",), indirect=True)
    @pytest.mark.parametrize("schema", [PetSchema, PetSchema()])
    def test_can_use_schema_in_header(self, spec, schema):
        param = {"schema": schema}
        spec.components.header("Pet", param)
        header = get_headers(spec)["Pet"]
        reference = header["schema"]
        assert reference == build_ref(spec, "schema", "Pet")

        resolved_schema = spec.components.schemas["Pet"]
        assert resolved_schema["properties"]["name"]["type"] == "string"
        assert resolved_schema["properties"]["password"]["type"] == "string"
        assert resolved_schema["properties"]["id"]["type"] == "integer"


class TestCustomField:
    def test_can_use_custom_field_decorator(self, spec_fixture):
        class CustomNameA(Field):
            pass

        spec_fixture.marshmallow_plugin.map_to_openapi_type(CustomNameA, DateTime)

        class CustomNameB(Field):
            pass

        spec_fixture.marshmallow_plugin.map_to_openapi_type(
            CustomNameB, "integer", "int32"
        )

        class BadCustomField(Field):
            pass

        with pytest.raises(TypeError):
            spec_fixture.marshmallow_plugin.map_to_openapi_type(
                BadCustomField, "integer"
            )

        class CustomPetASchema(PetSchema):
            name = CustomNameA()

        class CustomPetBSchema(PetSchema):
            name = CustomNameB()

        spec_fixture.spec.components.schema("Pet", schema=PetSchema)
        spec_fixture.spec.components.schema("CustomPetA", schema=CustomPetASchema)
        spec_fixture.spec.components.schema("CustomPetB", schema=CustomPetBSchema)

        props_0 = get_schemas(spec_fixture.spec)["Pet"]["properties"]
        props_a = get_schemas(spec_fixture.spec)["CustomPetA"]["properties"]
        props_b = get_schemas(spec_fixture.spec)["CustomPetB"]["properties"]

        assert props_0["name"]["type"] == "string"
        assert "format" not in props_0["name"]

        assert props_a["name"]["type"] == "string"
        assert props_a["name"]["format"] == "date-time"

        assert props_b["name"]["type"] == "integer"
        assert props_b["name"]["format"] == "int32"


def get_nested_schema(schema, field_name):
    try:
        return schema._declared_fields[field_name]._schema
    except AttributeError:
        return schema._declared_fields[field_name]._Nested__schema


class TestOperationHelper:
    @pytest.fixture
    def make_pet_callback_spec(self, spec_fixture):
        def _make_pet_spec(operations):
            spec_fixture.spec.path(
                path="/pet",
                operations={
                    "post": {"callbacks": {"petEvent": {"petCallbackUrl": operations}}}
                },
            )
            return spec_fixture

        return _make_pet_spec

    @pytest.mark.parametrize(
        "pet_schema",
        (PetSchema, PetSchema(), PetSchema(many=True), "tests.schemas.PetSchema"),
    )
    @pytest.mark.parametrize("spec_fixture", ("2.0",), indirect=True)
    def test_schema_v2(self, spec_fixture, pet_schema):
        spec_fixture.spec.path(
            path="/pet",
            operations={
                "get": {
                    "responses": {
                        200: {
                            "schema": pet_schema,
                            "description": "successful operation",
                            "headers": {"PetHeader": {"schema": pet_schema}},
                        }
                    }
                }
            },
        )
        get = get_paths(spec_fixture.spec)["/pet"]["get"]
        if isinstance(pet_schema, Schema) and pet_schema.many is True:
            assert get["responses"]["200"]["schema"]["type"] == "array"
            schema_reference = get["responses"]["200"]["schema"]["items"]
            assert (
                get["responses"]["200"]["headers"]["PetHeader"]["schema"]["type"]
                == "array"
            )
            header_reference = get["responses"]["200"]["headers"]["PetHeader"][
                "schema"
            ]["items"]
        else:
            schema_reference = get["responses"]["200"]["schema"]
            header_reference = get["responses"]["200"]["headers"]["PetHeader"]["schema"]
        assert schema_reference == build_ref(spec_fixture.spec, "schema", "Pet")
        assert header_reference == build_ref(spec_fixture.spec, "schema", "Pet")
        assert len(spec_fixture.spec.components.schemas) == 1
        resolved_schema = spec_fixture.spec.components.schemas["Pet"]
        assert resolved_schema == spec_fixture.openapi.schema2jsonschema(PetSchema)
        assert get["responses"]["200"]["description"] == "successful operation"

    @pytest.mark.parametrize(
        "pet_schema",
        (PetSchema, PetSchema(), PetSchema(many=True), "tests.schemas.PetSchema"),
    )
    @pytest.mark.parametrize("spec_fixture", ("3.0.0",), indirect=True)
    def test_schema_v3(self, spec_fixture, pet_schema):
        spec_fixture.spec.path(
            path="/pet",
            operations={
                "get": {
                    "responses": {
                        200: {
                            "content": {"application/json": {"schema": pet_schema}},
                            "description": "successful operation",
                            "headers": {"PetHeader": {"schema": pet_schema}},
                        }
                    }
                }
            },
        )
        get = get_paths(spec_fixture.spec)["/pet"]["get"]
        if isinstance(pet_schema, Schema) and pet_schema.many is True:
            assert (
                get["responses"]["200"]["content"]["application/json"]["schema"]["type"]
                == "array"
            )
            schema_reference = get["responses"]["200"]["content"]["application/json"][
                "schema"
            ]["items"]
            assert (
                get["responses"]["200"]["headers"]["PetHeader"]["schema"]["type"]
                == "array"
            )
            header_reference = get["responses"]["200"]["headers"]["PetHeader"][
                "schema"
            ]["items"]
        else:
            schema_reference = get["responses"]["200"]["content"]["application/json"][
                "schema"
            ]
            header_reference = get["responses"]["200"]["headers"]["PetHeader"]["schema"]

        assert schema_reference == build_ref(spec_fixture.spec, "schema", "Pet")
        assert header_reference == build_ref(spec_fixture.spec, "schema", "Pet")
        assert len(spec_fixture.spec.components.schemas) == 1
        resolved_schema = spec_fixture.spec.components.schemas["Pet"]
        assert resolved_schema == spec_fixture.openapi.schema2jsonschema(PetSchema)
        assert get["responses"]["200"]["description"] == "successful operation"

    @pytest.mark.parametrize(
        "pet_schema",
        (PetSchema, PetSchema(), PetSchema(many=True), "tests.schemas.PetSchema"),
    )
    @pytest.mark.parametrize("spec_fixture", ("3.0.0",), indirect=True)
    def test_callback_schema_v3(self, make_pet_callback_spec, pet_schema):
        spec_fixture = make_pet_callback_spec(
            {
                "get": {
                    "responses": {
                        "200": {
                            "content": {"application/json": {"schema": pet_schema}},
                            "description": "successful operation",
                            "headers": {"PetHeader": {"schema": pet_schema}},
                        }
                    }
                }
            }
        )
        p = get_paths(spec_fixture.spec)["/pet"]
        c = p["post"]["callbacks"]["petEvent"]["petCallbackUrl"]
        get = c["get"]
        if isinstance(pet_schema, Schema) and pet_schema.many is True:
            assert (
                get["responses"]["200"]["content"]["application/json"]["schema"]["type"]
                == "array"
            )
            schema_reference = get["responses"]["200"]["content"]["application/json"][
                "schema"
            ]["items"]
            assert (
                get["responses"]["200"]["headers"]["PetHeader"]["schema"]["type"]
                == "array"
            )
            header_reference = get["responses"]["200"]["headers"]["PetHeader"][
                "schema"
            ]["items"]
        else:
            schema_reference = get["responses"]["200"]["content"]["application/json"][
                "schema"
            ]
            header_reference = get["responses"]["200"]["headers"]["PetHeader"]["schema"]

        assert schema_reference == build_ref(spec_fixture.spec, "schema", "Pet")
        assert header_reference == build_ref(spec_fixture.spec, "schema", "Pet")
        assert len(spec_fixture.spec.components.schemas) == 1
        resolved_schema = spec_fixture.spec.components.schemas["Pet"]
        assert resolved_schema == spec_fixture.openapi.schema2jsonschema(PetSchema)
        assert get["responses"]["200"]["description"] == "successful operation"

    @pytest.mark.parametrize("spec_fixture", ("2.0",), indirect=True)
    def test_schema_expand_parameters_v2(self, spec_fixture):
        spec_fixture.spec.path(
            path="/pet",
            operations={
                "get": {"parameters": [{"in": "query", "schema": PetSchema}]},
                "post": {
                    "parameters": [
                        {
                            "in": "body",
                            "description": "a pet schema",
                            "required": True,
                            "name": "pet",
                            "schema": PetSchema,
                        }
                    ]
                },
            },
        )
        p = get_paths(spec_fixture.spec)["/pet"]
        get = p["get"]
        assert get["parameters"] == spec_fixture.openapi.schema2parameters(
            PetSchema(), location="query"
        )
        post = p["post"]
        assert post["parameters"] == spec_fixture.openapi.schema2parameters(
            PetSchema,
            location="body",
            required=True,
            name="pet",
            description="a pet schema",
        )

    @pytest.mark.parametrize("spec_fixture", ("3.0.0",), indirect=True)
    def test_schema_expand_parameters_v3(self, spec_fixture):
        spec_fixture.spec.path(
            path="/pet",
            operations={
                "get": {"parameters": [{"in": "query", "schema": PetSchema}]},
                "post": {
                    "requestBody": {
                        "description": "a pet schema",
                        "required": True,
                        "content": {"application/json": {"schema": PetSchema}},
                    }
                },
            },
        )
        p = get_paths(spec_fixture.spec)["/pet"]
        get = p["get"]
        assert get["parameters"] == spec_fixture.openapi.schema2parameters(
            PetSchema(), location="query"
        )
        for parameter in get["parameters"]:
            description = parameter.get("description", False)
            assert description
            name = parameter["name"]
            assert description == PetSchema.description[name]
        post = p["post"]
        post_schema = spec_fixture.marshmallow_plugin.resolver.resolve_schema_dict(
            PetSchema
        )
        assert (
            post["requestBody"]["content"]["application/json"]["schema"] == post_schema
        )
        assert post["requestBody"]["description"] == "a pet schema"
        assert post["requestBody"]["required"]

    @pytest.mark.parametrize("spec_fixture", ("3.0.0",), indirect=True)
    def test_callback_schema_expand_parameters_v3(self, make_pet_callback_spec):
        spec_fixture = make_pet_callback_spec(
            {
                "get": {"parameters": [{"in": "query", "schema": PetSchema}]},
                "post": {
                    "requestBody": {
                        "description": "a pet schema",
                        "required": True,
                        "content": {"application/json": {"schema": PetSchema}},
                    }
                },
            }
        )
        p = get_paths(spec_fixture.spec)["/pet"]
        c = p["post"]["callbacks"]["petEvent"]["petCallbackUrl"]
        get = c["get"]
        assert get["parameters"] == spec_fixture.openapi.schema2parameters(
            PetSchema(), location="query"
        )
        for parameter in get["parameters"]:
            description = parameter.get("description", False)
            assert description
            name = parameter["name"]
            assert description == PetSchema.description[name]
        post = c["post"]
        post_schema = spec_fixture.marshmallow_plugin.resolver.resolve_schema_dict(
            PetSchema
        )
        assert (
            post["requestBody"]["content"]["application/json"]["schema"] == post_schema
        )
        assert post["requestBody"]["description"] == "a pet schema"
        assert post["requestBody"]["required"]

    @pytest.mark.parametrize("spec_fixture", ("2.0",), indirect=True)
    def test_schema_uses_ref_if_available_v2(self, spec_fixture):
        spec_fixture.spec.components.schema("Pet", schema=PetSchema)
        spec_fixture.spec.path(
            path="/pet", operations={"get": {"responses": {200: {"schema": PetSchema}}}}
        )
        get = get_paths(spec_fixture.spec)["/pet"]["get"]
        assert get["responses"]["200"]["schema"] == build_ref(
            spec_fixture.spec, "schema", "Pet"
        )

    @pytest.mark.parametrize("spec_fixture", ("3.0.0",), indirect=True)
    def test_schema_uses_ref_if_available_v3(self, spec_fixture):
        spec_fixture.spec.components.schema("Pet", schema=PetSchema)
        spec_fixture.spec.path(
            path="/pet",
            operations={
                "get": {
                    "responses": {
                        200: {"content": {"application/json": {"schema": PetSchema}}}
                    }
                }
            },
        )
        get = get_paths(spec_fixture.spec)["/pet"]["get"]
        assert get["responses"]["200"]["content"]["application/json"][
            "schema"
        ] == build_ref(spec_fixture.spec, "schema", "Pet")

    @pytest.mark.parametrize("spec_fixture", ("3.0.0",), indirect=True)
    def test_callback_schema_uses_ref_if_available_v3(self, make_pet_callback_spec):
        spec_fixture = make_pet_callback_spec(
            {
                "get": {
                    "responses": {
                        "200": {"content": {"application/json": {"schema": PetSchema}}}
                    }
                }
            }
        )
        p = get_paths(spec_fixture.spec)["/pet"]
        c = p["post"]["callbacks"]["petEvent"]["petCallbackUrl"]
        get = c["get"]
        assert get["responses"]["200"]["content"]["application/json"][
            "schema"
        ] == build_ref(spec_fixture.spec, "schema", "Pet")

    def test_schema_uses_ref_if_available_name_resolver_returns_none_v2(self):
        def resolver(schema):
            return None

        spec = APISpec(
            title="Test auto-reference",
            version="0.1",
            openapi_version="2.0",
            plugins=(MarshmallowPlugin(schema_name_resolver=resolver),),
        )
        spec.components.schema("Pet", schema=PetSchema)
        spec.path(
            path="/pet", operations={"get": {"responses": {200: {"schema": PetSchema}}}}
        )
        get = get_paths(spec)["/pet"]["get"]
        assert get["responses"]["200"]["schema"] == build_ref(spec, "schema", "Pet")

    def test_schema_uses_ref_if_available_name_resolver_returns_none_v3(self):
        def resolver(schema):
            return None

        spec = APISpec(
            title="Test auto-reference",
            version="0.1",
            openapi_version="3.0.0",
            plugins=(MarshmallowPlugin(schema_name_resolver=resolver),),
        )
        spec.components.schema("Pet", schema=PetSchema)
        spec.path(
            path="/pet",
            operations={
                "get": {
                    "responses": {
                        200: {"content": {"application/json": {"schema": PetSchema}}}
                    }
                }
            },
        )
        get = get_paths(spec)["/pet"]["get"]
        assert get["responses"]["200"]["content"]["application/json"][
            "schema"
        ] == build_ref(spec, "schema", "Pet")

    @pytest.mark.parametrize("spec_fixture", ("2.0",), indirect=True)
    def test_schema_resolver_allof_v2(self, spec_fixture):
        spec_fixture.spec.components.schema("Pet", schema=PetSchema)
        spec_fixture.spec.components.schema("Sample", schema=SampleSchema)
        spec_fixture.spec.path(
            path="/pet",
            operations={
                "get": {
                    "responses": {200: {"schema": {"allOf": [PetSchema, SampleSchema]}}}
                }
            },
        )
        get = get_paths(spec_fixture.spec)["/pet"]["get"]
        assert get["responses"]["200"]["schema"] == {
            "allOf": [
                build_ref(spec_fixture.spec, "schema", "Pet"),
                build_ref(spec_fixture.spec, "schema", "Sample"),
            ]
        }

    @pytest.mark.parametrize("spec_fixture", ("3.0.0",), indirect=True)
    @pytest.mark.parametrize("combinator", ["oneOf", "anyOf", "allOf"])
    def test_schema_resolver_oneof_anyof_allof_v3(self, spec_fixture, combinator):
        spec_fixture.spec.components.schema("Pet", schema=PetSchema)
        spec_fixture.spec.path(
            path="/pet",
            operations={
                "get": {
                    "responses": {
                        200: {
                            "content": {
                                "application/json": {
                                    "schema": {combinator: [PetSchema, SampleSchema]}
                                }
                            }
                        }
                    }
                }
            },
        )
        get = get_paths(spec_fixture.spec)["/pet"]["get"]
        assert get["responses"]["200"]["content"]["application/json"]["schema"] == {
            combinator: [
                build_ref(spec_fixture.spec, "schema", "Pet"),
                build_ref(spec_fixture.spec, "schema", "Sample"),
            ]
        }

    @pytest.mark.parametrize("spec_fixture", ("2.0",), indirect=True)
    def test_schema_resolver_not_v2(self, spec_fixture):
        spec_fixture.spec.components.schema("Pet", schema=PetSchema)
        spec_fixture.spec.path(
            path="/pet",
            operations={"get": {"responses": {200: {"schema": {"not": PetSchema}}}}},
        )
        get = get_paths(spec_fixture.spec)["/pet"]["get"]
        assert get["responses"]["200"]["schema"] == {
            "not": build_ref(spec_fixture.spec, "schema", "Pet"),
        }

    @pytest.mark.parametrize("spec_fixture", ("3.0.0",), indirect=True)
    def test_schema_resolver_not_v3(self, spec_fixture):
        spec_fixture.spec.components.schema("Pet", schema=PetSchema)
        spec_fixture.spec.path(
            path="/pet",
            operations={
                "get": {
                    "responses": {
                        200: {
                            "content": {
                                "application/json": {"schema": {"not": PetSchema}}
                            }
                        }
                    }
                }
            },
        )
        get = get_paths(spec_fixture.spec)["/pet"]["get"]
        assert get["responses"]["200"]["content"]["application/json"]["schema"] == {
            "not": build_ref(spec_fixture.spec, "schema", "Pet"),
        }

    @pytest.mark.parametrize(
        "pet_schema",
        (PetSchema, PetSchema(), "tests.schemas.PetSchema"),
    )
    def test_schema_name_resolver_returns_none_v2(self, pet_schema):
        def resolver(schema):
            return None

        spec = APISpec(
            title="Test resolver returns None",
            version="0.1",
            openapi_version="2.0",
            plugins=(MarshmallowPlugin(schema_name_resolver=resolver),),
        )
        spec.path(
            path="/pet",
            operations={"get": {"responses": {200: {"schema": pet_schema}}}},
        )
        get = get_paths(spec)["/pet"]["get"]
        assert "properties" in get["responses"]["200"]["schema"]

    @pytest.mark.parametrize(
        "pet_schema",
        (PetSchema, PetSchema(), "tests.schemas.PetSchema"),
    )
    def test_schema_name_resolver_returns_none_v3(self, pet_schema):
        def resolver(schema):
            return None

        spec = APISpec(
            title="Test resolver returns None",
            version="0.1",
            openapi_version="3.0.0",
            plugins=(MarshmallowPlugin(schema_name_resolver=resolver),),
        )
        spec.path(
            path="/pet",
            operations={
                "get": {
                    "responses": {
                        200: {"content": {"application/json": {"schema": pet_schema}}}
                    }
                }
            },
        )
        get = get_paths(spec)["/pet"]["get"]
        assert (
            "properties"
            in get["responses"]["200"]["content"]["application/json"]["schema"]
        )

    def test_callback_schema_uses_ref_if_available_name_resolver_returns_none_v3(self):
        def resolver(schema):
            return None

        spec = APISpec(
            title="Test auto-reference",
            version="0.1",
            openapi_version="3.0.0",
            plugins=(MarshmallowPlugin(schema_name_resolver=resolver),),
        )
        spec.components.schema("Pet", schema=PetSchema)
        spec.path(
            path="/pet",
            operations={
                "post": {
                    "callbacks": {
                        "petEvent": {
                            "petCallbackUrl": {
                                "get": {
                                    "responses": {
                                        "200": {
                                            "content": {
                                                "application/json": {
                                                    "schema": PetSchema
                                                }
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            },
        )
        p = get_paths(spec)["/pet"]
        c = p["post"]["callbacks"]["petEvent"]["petCallbackUrl"]
        get = c["get"]
        assert get["responses"]["200"]["content"]["application/json"][
            "schema"
        ] == build_ref(spec, "schema", "Pet")

    @pytest.mark.parametrize("spec_fixture", ("2.0",), indirect=True)
    def test_schema_uses_ref_in_parameters_and_request_body_if_available_v2(
        self, spec_fixture
    ):
        spec_fixture.spec.components.schema("Pet", schema=PetSchema)
        spec_fixture.spec.path(
            path="/pet",
            operations={
                "get": {"parameters": [{"in": "query", "schema": PetSchema}]},
                "post": {"parameters": [{"in": "body", "schema": PetSchema}]},
            },
        )
        p = get_paths(spec_fixture.spec)["/pet"]
        assert "schema" not in p["get"]["parameters"][0]
        post = p["post"]
        assert len(post["parameters"]) == 1
        assert post["parameters"][0]["schema"] == build_ref(
            spec_fixture.spec, "schema", "Pet"
        )

    @pytest.mark.parametrize("spec_fixture", ("3.0.0",), indirect=True)
    def test_schema_uses_ref_in_parameters_and_request_body_if_available_v3(
        self, spec_fixture
    ):
        spec_fixture.spec.components.schema("Pet", schema=PetSchema)
        spec_fixture.spec.path(
            path="/pet",
            operations={
                "get": {"parameters": [{"in": "query", "schema": PetSchema}]},
                "post": {
                    "requestBody": {
                        "content": {"application/json": {"schema": PetSchema}}
                    }
                },
            },
        )
        p = get_paths(spec_fixture.spec)["/pet"]
        assert "schema" in p["get"]["parameters"][0]
        post = p["post"]
        schema_ref = post["requestBody"]["content"]["application/json"]["schema"]
        assert schema_ref == build_ref(spec_fixture.spec, "schema", "Pet")

    @pytest.mark.parametrize("spec_fixture", ("3.0.0",), indirect=True)
    def test_callback_schema_uses_ref_in_parameters_and_request_body_if_available_v3(
        self, make_pet_callback_spec
    ):
        spec_fixture = make_pet_callback_spec(
            {
                "get": {"parameters": [{"in": "query", "schema": PetSchema}]},
                "post": {
                    "requestBody": {
                        "content": {"application/json": {"schema": PetSchema}}
                    }
                },
            }
        )
        p = get_paths(spec_fixture.spec)["/pet"]
        c = p["post"]["callbacks"]["petEvent"]["petCallbackUrl"]
        assert "schema" in c["get"]["parameters"][0]
        post = c["post"]
        schema_ref = post["requestBody"]["content"]["application/json"]["schema"]
        assert schema_ref == build_ref(spec_fixture.spec, "schema", "Pet")

    @pytest.mark.parametrize("spec_fixture", ("2.0",), indirect=True)
    def test_schema_array_uses_ref_if_available_v2(self, spec_fixture):
        spec_fixture.spec.components.schema("Pet", schema=PetSchema)
        spec_fixture.spec.path(
            path="/pet",
            operations={
                "get": {
                    "parameters": [
                        {
                            "name": "petSchema",
                            "in": "body",
                            "schema": {"type": "array", "items": PetSchema},
                        }
                    ],
                    "responses": {
                        200: {"schema": {"type": "array", "items": PetSchema}}
                    },
                }
            },
        )
        get = get_paths(spec_fixture.spec)["/pet"]["get"]
        assert len(get["parameters"]) == 1
        resolved_schema = {
            "type": "array",
            "items": build_ref(spec_fixture.spec, "schema", "Pet"),
        }
        assert get["parameters"][0]["schema"] == resolved_schema
        assert get["responses"]["200"]["schema"] == resolved_schema

    @pytest.mark.parametrize("spec_fixture", ("3.0.0",), indirect=True)
    def test_schema_array_uses_ref_if_available_v3(self, spec_fixture):
        spec_fixture.spec.components.schema("Pet", schema=PetSchema)
        spec_fixture.spec.path(
            path="/pet",
            operations={
                "get": {
                    "parameters": [
                        {
                            "name": "Pet",
                            "in": "query",
                            "content": {
                                "application/json": {
                                    "schema": {"type": "array", "items": PetSchema}
                                }
                            },
                        }
                    ],
                    "responses": {
                        200: {
                            "content": {
                                "application/json": {
                                    "schema": {"type": "array", "items": PetSchema}
                                }
                            }
                        }
                    },
                }
            },
        )
        get = get_paths(spec_fixture.spec)["/pet"]["get"]
        assert len(get["parameters"]) == 1
        resolved_schema = {
            "type": "array",
            "items": build_ref(spec_fixture.spec, "schema", "Pet"),
        }
        request_schema = get["parameters"][0]["content"]["application/json"]["schema"]
        assert request_schema == resolved_schema
        response_schema = get["responses"]["200"]["content"]["application/json"][
            "schema"
        ]
        assert response_schema == resolved_schema

    @pytest.mark.parametrize("spec_fixture", ("3.0.0",), indirect=True)
    def test_callback_schema_array_uses_ref_if_available_v3(
        self, make_pet_callback_spec
    ):
        spec_fixture = make_pet_callback_spec(
            {
                "get": {
                    "parameters": [
                        {
                            "name": "Pet",
                            "in": "query",
                            "content": {
                                "application/json": {
                                    "schema": {"type": "array", "items": PetSchema}
                                }
                            },
                        }
                    ],
                    "responses": {
                        "200": {
                            "content": {
                                "application/json": {
                                    "schema": {"type": "array", "items": PetSchema}
                                }
                            }
                        }
                    },
                }
            }
        )
        p = get_paths(spec_fixture.spec)["/pet"]
        c = p["post"]["callbacks"]["petEvent"]["petCallbackUrl"]
        get = c["get"]
        assert len(get["parameters"]) == 1
        resolved_schema = {
            "type": "array",
            "items": build_ref(spec_fixture.spec, "schema", "Pet"),
        }
        request_schema = get["parameters"][0]["content"]["application/json"]["schema"]
        assert request_schema == resolved_schema
        response_schema = get["responses"]["200"]["content"]["application/json"][
            "schema"
        ]
        assert response_schema == resolved_schema

    @pytest.mark.parametrize("spec_fixture", ("2.0",), indirect=True)
    def test_schema_partially_v2(self, spec_fixture):
        spec_fixture.spec.components.schema("Pet", schema=PetSchema)
        spec_fixture.spec.path(
            path="/parents",
            operations={
                "get": {
                    "responses": {
                        200: {
                            "schema": {
                                "type": "object",
                                "properties": {
                                    "mother": PetSchema,
                                    "father": PetSchema,
                                },
                            }
                        }
                    }
                }
            },
        )
        get = get_paths(spec_fixture.spec)["/parents"]["get"]
        assert get["responses"]["200"]["schema"] == {
            "type": "object",
            "properties": {
                "mother": build_ref(spec_fixture.spec, "schema", "Pet"),
                "father": build_ref(spec_fixture.spec, "schema", "Pet"),
            },
        }

    @pytest.mark.parametrize("spec_fixture", ("3.0.0",), indirect=True)
    def test_schema_partially_v3(self, spec_fixture):
        spec_fixture.spec.components.schema("Pet", schema=PetSchema)
        spec_fixture.spec.path(
            path="/parents",
            operations={
                "get": {
                    "responses": {
                        200: {
                            "content": {
                                "application/json": {
                                    "schema": {
                                        "type": "object",
                                        "properties": {
                                            "mother": PetSchema,
                                            "father": PetSchema,
                                        },
                                    }
                                }
                            }
                        }
                    }
                }
            },
        )
        get = get_paths(spec_fixture.spec)["/parents"]["get"]
        assert get["responses"]["200"]["content"]["application/json"]["schema"] == {
            "type": "object",
            "properties": {
                "mother": build_ref(spec_fixture.spec, "schema", "Pet"),
                "father": build_ref(spec_fixture.spec, "schema", "Pet"),
            },
        }

    @pytest.mark.parametrize("spec_fixture", ("3.0.0",), indirect=True)
    def test_callback_schema_partially_v3(self, make_pet_callback_spec):
        spec_fixture = make_pet_callback_spec(
            {
                "get": {
                    "responses": {
                        "200": {
                            "content": {
                                "application/json": {
                                    "schema": {
                                        "type": "object",
                                        "properties": {
                                            "mother": PetSchema,
                                            "father": PetSchema,
                                        },
                                    }
                                }
                            }
                        }
                    }
                }
            }
        )
        p = get_paths(spec_fixture.spec)["/pet"]
        c = p["post"]["callbacks"]["petEvent"]["petCallbackUrl"]
        get = c["get"]
        assert get["responses"]["200"]["content"]["application/json"]["schema"] == {
            "type": "object",
            "properties": {
                "mother": build_ref(spec_fixture.spec, "schema", "Pet"),
                "father": build_ref(spec_fixture.spec, "schema", "Pet"),
            },
        }

    def test_parameter_reference(self, spec_fixture):
        if spec_fixture.spec.openapi_version.major < 3:
            param = {"schema": PetSchema}
        else:
            param = {"content": {"application/json": {"schema": PetSchema}}}
        spec_fixture.spec.components.parameter("Pet", "body", param)
        spec_fixture.spec.path(
            path="/parents", operations={"get": {"parameters": ["Pet"]}}
        )
        get = get_paths(spec_fixture.spec)["/parents"]["get"]
        assert get["parameters"] == [build_ref(spec_fixture.spec, "parameter", "Pet")]

    def test_response_reference(self, spec_fixture):
        if spec_fixture.spec.openapi_version.major < 3:
            resp = {"schema": PetSchema}
        else:
            resp = {"content": {"application/json": {"schema": PetSchema}}}
        spec_fixture.spec.components.response("Pet", resp)
        spec_fixture.spec.path(
            path="/parents", operations={"get": {"responses": {"200": "Pet"}}}
        )
        get = get_paths(spec_fixture.spec)["/parents"]["get"]
        assert get["responses"] == {
            "200": build_ref(spec_fixture.spec, "response", "Pet")
        }

    def test_schema_global_state_untouched_2json(self, spec_fixture):
        assert get_nested_schema(RunSchema, "sample") is None
        data = spec_fixture.openapi.schema2jsonschema(RunSchema)
        json.dumps(data)
        assert get_nested_schema(RunSchema, "sample") is None

    def test_schema_global_state_untouched_2parameters(self, spec_fixture):
        assert get_nested_schema(RunSchema, "sample") is None
        data = spec_fixture.openapi.schema2parameters(RunSchema, location="json")
        json.dumps(data)
        assert get_nested_schema(RunSchema, "sample") is None

    def test_resolve_schema_dict_ref_as_string(self, spec):
        """Test schema ref passed as string"""
        # The case tested here is a reference passed as string, not a
        # marshmallow Schema passed by name as string. We want to ensure the
        # MarshmallowPlugin does not interfere with the feature interpreting
        # strings as references. Therefore, we use a specific name to ensure
        # there is no Schema with that name in the marshmallow registry from
        # somewhere else in the tests.
        # e.g. PetSchema is in the registry already so it wouldn't work.
        schema = {"schema": "SomeSpecificPetSchema"}
        if spec.openapi_version.major >= 3:
            schema = {"content": {"application/json": schema}}
        spec.path("/pet/{petId}", operations={"get": {"responses": {"200": schema}}})
        resp = get_paths(spec)["/pet/{petId}"]["get"]["responses"]["200"]
        if spec.openapi_version.major < 3:
            schema = resp["schema"]
        else:
            schema = resp["content"]["application/json"]["schema"]
        assert schema == build_ref(spec, "schema", "SomeSpecificPetSchema")


class TestCircularReference:
    def test_circular_referencing_schemas(self, spec):
        spec.components.schema("Analysis", schema=AnalysisSchema)
        definitions = get_schemas(spec)
        ref = definitions["Analysis"]["properties"]["sample"]
        assert ref == build_ref(spec, "schema", "Sample")


# Regression tests for issue #55
class TestSelfReference:
    def test_self_referencing_field_single(self, spec):
        spec.components.schema("SelfReference", schema=SelfReferencingSchema)
        definitions = get_schemas(spec)
        ref = definitions["SelfReference"]["properties"]["single"]
        assert ref == build_ref(spec, "schema", "SelfReference")

    def test_self_referencing_field_many(self, spec):
        spec.components.schema("SelfReference", schema=SelfReferencingSchema)
        definitions = get_schemas(spec)
        result = definitions["SelfReference"]["properties"]["multiple"]
        assert result == {
            "type": "array",
            "items": build_ref(spec, "schema", "SelfReference"),
        }


class TestOrderedSchema:
    def test_ordered_schema(self, spec):
        spec.components.schema("Ordered", schema=OrderedSchema)
        result = get_schemas(spec)["Ordered"]["properties"]
        assert list(result.keys()) == ["field1", "field2", "field3", "field4", "field5"]


class TestFieldWithCustomProps:
    def test_field_with_custom_props(self, spec):
        spec.components.schema("PatternedObject", schema=PatternedObjectSchema)
        result = get_schemas(spec)["PatternedObject"]["properties"]["count"]
        assert "x-count" in result
        assert result["x-count"] == 1

    def test_field_with_custom_props_passed_as_snake_case(self, spec):
        spec.components.schema("PatternedObject", schema=PatternedObjectSchema)
        result = get_schemas(spec)["PatternedObject"]["properties"]["count2"]
        assert "x-count2" in result
        assert result["x-count2"] == 2


class TestSchemaWithDefaultValues:
    def test_schema_with_default_values(self, spec):
        spec.components.schema("DefaultValuesSchema", schema=DefaultValuesSchema)
        definitions = get_schemas(spec)
        props = definitions["DefaultValuesSchema"]["properties"]
        assert props["number_auto_default"]["default"] == 12
        assert props["number_manual_default"]["default"] == 42
        assert "default" not in props["string_callable_default"]
        assert props["string_manual_default"]["default"] == "Manual"
        assert "default" not in props["numbers"]


class TestDictValues:
    def test_dict_values_resolve_to_additional_properties(self, spec):
        class SchemaWithDict(Schema):
            dict_field = Dict(values=String())

        spec.components.schema("SchemaWithDict", schema=SchemaWithDict)
        result = get_schemas(spec)["SchemaWithDict"]["properties"]["dict_field"]
        assert result == {"type": "object", "additionalProperties": {"type": "string"}}

    def test_dict_with_empty_values_field(self, spec):
        class SchemaWithDict(Schema):
            dict_field = Dict()

        spec.components.schema("SchemaWithDict", schema=SchemaWithDict)
        result = get_schemas(spec)["SchemaWithDict"]["properties"]["dict_field"]
        assert result == {"type": "object", "additionalProperties": {}}

    def test_dict_with_nested(self, spec):
        class SchemaWithDict(Schema):
            dict_field = Dict(values=Nested(PetSchema))

        spec.components.schema("SchemaWithDict", schema=SchemaWithDict)

        assert len(get_schemas(spec)) == 2

        result = get_schemas(spec)["SchemaWithDict"]["properties"]["dict_field"]
        assert result == {
            "additionalProperties": build_ref(spec, "schema", "Pet"),
            "type": "object",
        }


class TestList:
    def test_list_with_nested(self, spec):
        class SchemaWithList(Schema):
            list_field = List(Nested(PetSchema))

        spec.components.schema("SchemaWithList", schema=SchemaWithList)

        assert len(get_schemas(spec)) == 2

        result = get_schemas(spec)["SchemaWithList"]["properties"]["list_field"]
        assert result == {"items": build_ref(spec, "schema", "Pet"), "type": "array"}


class TestTimeDelta:
    def test_timedelta_x_unit(self, spec):
        class SchemaWithTimeDelta(Schema):
            sec = TimeDelta("seconds")
            day = TimeDelta("days")

        spec.components.schema("SchemaWithTimeDelta", schema=SchemaWithTimeDelta)

        assert (
            get_schemas(spec)["SchemaWithTimeDelta"]["properties"]["sec"]["x-unit"]
            == "seconds"
        )
        assert (
            get_schemas(spec)["SchemaWithTimeDelta"]["properties"]["day"]["x-unit"]
            == "days"
        )
