message: build(bazel): fix aio deployment unit tests
  Missing a spy for the new chmod call.
diff: @@ -19,10 +19,12 @@ describe('deploy-to-firebase/pre-deploy-actions:', () => {
  describe('build()', () => {
  let cpSpy;
  + let chmodSpy;
  let yarnSpy;
  beforeEach(() => {
  cpSpy = spyOn(sh, 'cp');
  + chmodSpy = spyOn(sh, 'chmod');
  yarnSpy = spyOn(u, 'yarn');
  });
  @@ -31,6 +33,11 @@ describe('deploy-to-firebase/pre-deploy-actions:', () => {
  expect(yarnSpy).toHaveBeenCalledWith('build --aio_build_config=bar');
  });
  + it('should remove write protection from the dist folder', () => {
  + pre.build({deployedUrl: 'http://example.com/foo/', deployEnv: 'bar'});
  + expect(chmodSpy).toHaveBeenCalledWith('-R', 'u+w', '../dist/bin/aio/build');
  + });
  +
  it('should add mode-specific files into the distribution', () => {
  pre.build({deployedUrl: 'http://example.com/foo/', deployEnv: 'bar'});
  expect(cpSpy).toHaveBeenCalledWith('-rf', 'src/extra-files/bar/.', '../dist/bin/aio/build');
  