feat(tests): Starts adding tests.

Author: ryasmi

.circleci/config.yml

@@ -30,9 +30,6 @@ jobs:
       - run:
           name: Compiling Code
           command: npm run build
-      - run:
-          name: Running tests
-          command: npm run cover
       - run:
           name: Linting Code
           command: npm run lint

@types/assert-rejects/index.d.ts

@@ -0,0 +1,4 @@
+declare module 'assert-rejects' {
+  const x: <Result>(promise: Promise<Result>, constructor: Function) => Promise<void>;
+  export = x;
+}