Fix middleware thunk test

Author: danielrearden

src/__tests__/http-test.js

@@ -1117,12 +1117,8 @@ function runTests(server: Server) {
  app.get(
  urlString(),
  graphqlHTTP((req, res) => {
- if (req) {
- hasRequest = true;
- }
- if (res) {
- hasResponse = true;
- }
+ hasRequest = Boolean(req);
+ hasResponse = Boolean(res);
  return { schema: TestSchema };
  }),
  );