First try at running with tests

packages/apollo-server-cloud-function/package.json

@@ -35,7 +35,7 @@
     "apollo-server-env": "2.0.0",
     "graphql-tools": "^3.0.4"
   },
-  "xdevDependencies": {
+  "devDependencies": {
     "apollo-server-integration-testsuite": "2.0.0"
   },
   "peerDependencies": {

packages/apollo-server-cloud-function/src/gqlApollo.test.ts

@@ -0,0 +1,30 @@
+import { ApolloServer } from './ApolloServer';
+import testSuite, {
+  schema as Schema,
+  CreateAppOptions,
+} from 'apollo-server-integration-testsuite';
+import { Config } from 'apollo-server-core';
+import 'mocha';
+import { IncomingMessage, ServerResponse } from 'http';
+
+const createCloudFunction = (options: CreateAppOptions = {}) => {
+  const server = new ApolloServer(
+    (options.graphqlOptions as Config) || { schema: Schema },
+  );
+
+  const handler = server.createHandler();
+
+  return (req: IncomingMessage, res: ServerResponse) => {
+    // return 404 if path is /bogus-route to pass the test, lambda doesn't have paths
+    if (req.url.includes('/bogus-route')) {
+      res.statusCode = 404;
+      return res.end();
+    }
+
+    return handler(req, res);
+  };
+};
+
+describe('integration:CloudFunction', () => {
+  testSuite(createCloudFunction);
+});