test: migrate from FlowType to TypeScript

Author: nodkz

jest.config.js

@@ -1,5 +1,18 @@
 module.exports = {
-  roots: ['<rootDir>/src'],
-  testMatch: ['**/__tests__/**/*-test.(ts|js)'],
+  preset: 'ts-jest',
   testEnvironment: 'node',
+  globals: {
+    'ts-jest': {
+      tsConfig: '<rootDir>/tsconfig.json',
+      isolatedModules: true,
+      diagnostics: false,
+    },
+  },
+  moduleFileExtensions: ['ts', 'js'],
+  transform: {
+    '^.+\\.ts$': 'ts-jest',
+    '^.+\\.js$': 'babel-jest',
+  },
+  roots: ['<rootDir>/src'],
+  testPathIgnorePatterns: ['/node_modules/', '/lib/'],
 };

package.json

@@ -48,6 +48,7 @@
     "@babel/preset-env": "7.11.0",
     "@babel/preset-flow": "7.10.4",
     "@types/graphql": "^14.5.0",
+    "@types/jest": "26.0.9",
     "@types/mongoose": "5.7.36",
     "babel-core": "^7.0.0-bridge.0",
     "babel-eslint": "10.1.0",
@@ -70,6 +71,7 @@
     "request": "2.88.2",
     "rimraf": "3.0.2",
     "semantic-release": "17.1.1",
+    "ts-jest": "26.1.4",
     "tslint": "6.1.3",
     "tslint-config-prettier": "^1.18.0",
     "tslint-plugin-prettier": "2.3.0",

src/__mocks__/contactsSchema.js renamed to src/__mocks__/contactsSchema.ts

@@ -1,5 +1,3 @@
-/* @flow */
-
 import type { Schema as SchemaType } from 'mongoose';
 import { Schema } from './mongooseCommon';
 

src/__mocks__/enumEmployment.js renamed to src/__mocks__/enumEmployment.ts

@@ -1,5 +1,3 @@
-/* @flow */
-
 const enumEmployment = {
   full: { description: 'Full time' },
   partial: { description: 'Partial time' },

src/__mocks__/languageSchema.js renamed to src/__mocks__/languageSchema.ts

@@ -1,5 +1,3 @@
-/* @flow */
-
 import type { Schema as SchemaType } from 'mongoose';
 import { schemaComposer } from 'graphql-compose';
 import { Schema } from './mongooseCommon';

src/__mocks__/mongooseCommon.js renamed to src/__mocks__/mongooseCommon.ts

@@ -1,8 +1,7 @@
-/* @flow */
 /* eslint-disable no-param-reassign, no-console */
 
 import mongoose from 'mongoose';
-import MongodbMemoryServer from 'mongodb-memory-server';
+import { MongoMemoryServer } from 'mongodb-memory-server';
 
 const { Schema, Types } = mongoose;
 
@@ -11,8 +10,8 @@ mongoose.Promise = Promise;
 jasmine.DEFAULT_TIMEOUT_INTERVAL = 60000;
 
 const originalConnect = mongoose.connect;
-mongoose.connect = (async () => {
-  const mongoServer = new MongodbMemoryServer();
+mongoose.createConnection = (async () => {
+  const mongoServer = new MongoMemoryServer();
 
   const mongoUri = await mongoServer.getConnectionString(true);
 
@@ -35,6 +34,8 @@ mongoose.connect = (async () => {
     // console.log('MongoDB disconnected!');
     mongoServer.stop();
   });
-}: any);
+}) as any;
+
+mongoose.connect = mongoose.createConnection as any;
 
 export { mongoose, Schema, Types };

src/__mocks__/postModel.js renamed to src/__mocks__/postModel.ts

@@ -1,6 +1,4 @@
-/* @flow */
-
-import type { Schema as SchemaType } from 'mongoose';
+import type { Schema as SchemaType, Document } from 'mongoose';
 import { mongoose, Schema } from './mongooseCommon';
 
 const PostSchema: SchemaType<any> = new Schema({
@@ -16,6 +14,10 @@ const PostSchema: SchemaType<any> = new Schema({
   // updatedAt, created via option `timastamp: true` (see bottom)
 });
 
-const PostModel = mongoose.model('Post', PostSchema);
+export interface IPost extends Document {
+  title: string;
+}
+
+const PostModel = mongoose.model<IPost>('Post', PostSchema);
 
 export { PostSchema, PostModel };

src/__mocks__/userModel.js renamed to src/__mocks__/userModel.ts

@@ -1,12 +1,10 @@
-/* @flow */
-
-import type { Schema as SchemaType } from 'mongoose';
 import { mongoose, Schema } from './mongooseCommon';
 import ContactsSchema from './contactsSchema';
 import enumEmployment from './enumEmployment';
 import LanguageSchema from './languageSchema';
+import { Document } from 'mongoose';
 
-const UserSchema: SchemaType<any> = new Schema(
+const UserSchema = new Schema(
   {
     subDoc: {
       field1: String,
@@ -38,7 +36,7 @@ const UserSchema: SchemaType<any> = new Schema(
       description: 'Full years',
       required() {
         // in graphql this field should be Nullable
-        return this.name === 'Something special';
+        return (this as any).name === 'Something special';
       },
     },
 
@@ -126,10 +124,20 @@ UserSchema.set('autoIndex', false);
 UserSchema.index({ name: 1, age: -1 });
 
 // eslint-disable-next-line
-UserSchema.virtual('nameVirtual').get(function () {
+UserSchema.virtual('nameVirtual').get(function (this: any) {
   return `VirtualFieldValue${this._id}`;
 });
 
-const UserModel = mongoose.model('User', UserSchema);
+export interface IUser extends Document {
+  _id: any;
+  name?: string;
+  age?: number;
+  gender?: string;
+  someDynamic?: any;
+  skills?: string[];
+  relocation?: boolean;
+}
+
+const UserModel = mongoose.model<IUser>('User', UserSchema);
 
 export { UserSchema, UserModel };

src/__tests__/__snapshots__/integration-test.js.snap renamed to src/__tests__/__snapshots__/integration-test.ts.snap

@@ -1,4 +1,3 @@
-/* @flow */
 /* eslint-disable no-unused-expressions */
 
 import mongoose from 'mongoose';
@@ -8,7 +7,7 @@ import { UserModel } from '../__mocks__/userModel';
 import { composeWithMongoose } from '../composeWithMongoose';
 import GraphQLMongoID from '../types/mongoid';
 
-beforeAll(() => UserModel.base.connect());
+beforeAll(() => UserModel.base.createConnection());
 afterAll(() => UserModel.base.disconnect());
 
 describe('composeWithMongoose ->', () => {
@@ -164,7 +163,7 @@ describe('composeWithMongoose ->', () => {
             findMany: {},
             updateOne: {
               some: 123,
-            },
+            } as any,
           },
         });
         const resolverKeys = Array.from(tc2.getResolvers().keys());