humpty/test/printResults.test.js

Makes sure your changelogs mention your breaking changes

import printResults from "../src/printResults";
import singlePropWithTypeChange from "./inputs/printUnmentionedChanges/singlePropWithTypeChange";

describe("printResults()", () => {
  /* eslint-disable no-console */
  beforeEach(() => {
    global.console = { log: jest.fn() };
  });
  describe("output format", () => {
    test("default output should be text", () => {
      printResults(singlePropWithTypeChange);
      expect(console.log.mock.calls[0][0]).toContain("Found 1 breaking");
    });
    test("json output if requested", () => {
      printResults(singlePropWithTypeChange, true);
      expect(console.log.mock.calls[0][0]).toContain(
        '"isDefaultExport": true,'
      );
    });
  });
});