message: test(service:check): disable chalk for unit testing
  The output will be different depending on the OS being run (windows doesn't
  apply colors); so don't use them at all for unit tests.
diff: @@ -5,8 +5,20 @@ import {
  } from "../check";
  import checkSchemaResult from "./fixtures/check-schema-result.json";
  import { ChangeType } from "apollo-language-server/lib/graphqlTypes";
  +import chalk from "chalk";
  describe("service:check", () => {
  + let originalChalkEnabled;
  +
  + beforeEach(() => {
  + originalChalkEnabled = chalk.enabled;
  + chalk.enabled = false;
  + });
  +
  + afterEach(() => {
  + chalk.enabled = originalChalkEnabled;
  + });
  +
  describe("markdown formatting", () => {
  it("is correct with breaking changes", () => {
  expect(
  