refactoring middleware tests to use ioredis

Author: evanmcneely

test/middleware/express.test.ts

@@ -1,10 +1,12 @@
 import { Request, Response, NextFunction, RequestHandler } from 'express';
 import { GraphQLSchema, buildSchema } from 'graphql';
-import * as redis from 'redis';
-import redisMock from 'redis-mock';
-import { RedisClientType } from 'redis';
+import * as ioredis from 'ioredis';
+
 import expressRateLimitMiddleware from '../../src/middleware/index';
 
+// eslint-disable-next-line @typescript-eslint/no-var-requires
+const RedisMock = require('ioredis-mock');
+
 let middleware: RequestHandler;
 let mockRequest: Partial<Request>;
 let complexRequest: Partial<Request>;
@@ -337,7 +339,7 @@ xdescribe('Express Middleware tests', () => {
             // We could use NODE_ENV varibale in the implementation to determine the connection type.
 
             // TODO: connect to the actual redis client here. Make sure to disconnect for proper teardown
-            const client: RedisClientType = redisMock.createClient();
+            const client: ioredis.Redis = new RedisMock();
             await client.connect();
             // Check for change in the redis store for the IP key