transform-federation.spec.js

"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
var graphql_tools_1 = require("graphql-tools");
var transform_federation_1 = require("./transform-federation");
var execute_1 = require("graphql/execution/execute");
var language_1 = require("graphql/language");
var dedent = require("dedent");
describe('Transform Federation', function () {
    it('should add a _service field', function () { return __awaiter(void 0, void 0, void 0, function () {
        var executableSchema, federationSchema, _a;
        return __generator(this, function (_b) {
            switch (_b.label) {
                case 0:
                    executableSchema = graphql_tools_1.makeExecutableSchema({
                        typeDefs: "\n        type Product {\n          id: ID!\n        }\n      ",
                        resolvers: {},
                    });
                    federationSchema = transform_federation_1.transformSchemaFederation(executableSchema, {
                        Product: {
                            keyFields: ['id'],
                        },
                    });
                    _a = expect;
                    return [4 /*yield*/, execute_1.execute({
                            schema: federationSchema,
                            document: language_1.parse("\n          query {\n            _service {\n              sdl\n            }\n          }\n        "),
                        })];
                case 1:
                    _a.apply(void 0, [_b.sent()]).toEqual({
                        data: {
                            _service: {
                                sdl: dedent(templateObject_1 || (templateObject_1 = __makeTemplateObject(["\n            type Product @key(fields: \"id\") {\n              id: ID!\n            }\n\n          "], ["\n            type Product @key(fields: \"id\") {\n              id: ID!\n            }\\n\n          "]))),
                            },
                        },
                    });
                    return [2 /*return*/];
            }
        });
    }); });
    it('should resolve references', function () { return __awaiter(void 0, void 0, void 0, function () {
        var executableSchema, federationSchema, _a;
        return __generator(this, function (_b) {
            switch (_b.label) {
                case 0:
                    executableSchema = graphql_tools_1.makeExecutableSchema({
                        typeDefs: "\n    type Product {\n      id: ID!\n      name: String!\n    }\n      ",
                        resolvers: {},
                    });
                    federationSchema = transform_federation_1.transformSchemaFederation(executableSchema, {
                        Product: {
                            keyFields: ['id'],
                            extend: true,
                            resolveReference: function (reference) {
                                return __assign(__assign({}, reference), { name: 'mock name' });
                            },
                        },
                    });
                    _a = expect;
                    return [4 /*yield*/, execute_1.execute({
                            schema: federationSchema,
                            document: language_1.parse("\n          query{\n            _entities (representations: {\n              __typename:\"Product\"\n              id: \"1\"\n            }) {\n              __typename\n              ...on Product {\n                id\n                name\n              }\n            }\n          } \n        "),
                        })];
                case 1:
                    _a.apply(void 0, [_b.sent()]).toEqual({
                        data: {
                            _entities: [
                                {
                                    __typename: 'Product',
                                    id: '1',
                                    name: 'mock name',
                                },
                            ],
                        },
                    });
                    return [2 /*return*/];
            }
        });
    }); });
    it('should throw and error when adding resolveReference on a scalar', function () {
        var executableSchema = graphql_tools_1.makeExecutableSchema({
            typeDefs: 'scalar MockScalar',
            resolvers: {},
        });
        expect(function () {
            return transform_federation_1.transformSchemaFederation(executableSchema, {
                MockScalar: {
                    resolveReference: function () {
                        return {};
                    },
                },
            });
        }).toThrow('Type "MockScalar" is not an object type and can\'t have a resolveReference function');
    });
});
var templateObject_1;
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