it('parses `styles.css`', function (done) {
    sandbox.stub(glob, 'sync').returns(['styles.css']);
    mock.expects('statSync').withArgs('styles.css').returns({ ctime: new Date(1) });
    mockUtil.expects('haveOtherFilesBeenModified').withArgs('foo').returns(false);
    mockUtil.expects('hasFolderBeenModified').withArgs('foo').returns(false);