anchor.diff:        expect(
             renderSync(new RenderOptions(
                 data: "@import 'test'", includePaths: [sandbox])),
  -          equals('''
  -a {
  -  b: c;
  -}'''));
  +          equalsIgnoringWhitespace('a { b: c; }'));
       });
   
       test("can render the indented syntax", () {
         expect(
             renderSync(
                 new RenderOptions(data: "a\n  b: c", indentedSyntax: true)),
  -          equals('''
  -a {
  -  b: c;
  -}'''));
  +          equalsIgnoringWhitespace('a { b: c; }'));
       });
   
       test("the indented syntax flag takes precedence over the file extension",
  
positive.code:     });
  
      test("renders a string", () {
        expect(renderSync(new RenderOptions(data: "a {b: c}")), equals('''
  a {
    b: c;
  }'''));
      });
  
      test("one of data and file must be set", () {
  
negative.code: 
    group("render()", () {
      test("renders a file", () async {
        expect(await render(new RenderOptions(file: sassPath)),
            equalsIgnoringWhitespace('a { b: c; }'));
      });
  
      test("throws an error that has a useful toString", () async {
  