anchor.diff:        test("passing test 1", () => expect(1, equals(1)));
       });
     });
  -  group("group 2", () {
  +  group("skipped group 2", () {
       test("passing test 1", () => expect(1, equals(1)));
       test("failing test 1", () => expect(1, equals(2)));
       test("skipped test 1", () {}, skip: true);
  
positive.code: // the results from teh tests below.
  // == EXPECTED RESULTS ==
  // tree_test.dart (Failed)
  //     group 1 (Failed)
  //         group 1 group 1.1 (Passed)
  //             group 1 group 1.1 passing test 1 (Passed)
  //         group 1 passing test 1 (Passed)
  //         group 1 failing test 1 (Failed)
  //         group 1 skipped test 1 (Skipped)
  //     group 2 (Failed)
  //         group 2 skipped group 2.1 (Skipped)
  //             group 2 skipped group 2.1 passing test 1 (Skipped)
  //             group 2 skipped group 2.1 failing test 1 (Skipped)
  //             group 2 skipped group 2.1 skipped test 1 (Skipped)
  //         group 2 passing test 1 (Passed)
  //         group 2 failing test 1 (Failed)
  //         group 2 skipped test 1 (Skipped)
  // == /EXPECTED RESULTS ==
  
  void main() {
    group("group 1", () {
      test("passing test 1", () => expect(1, equals(1)));
      test("failing test 1", () => expect(1, equals(2)));
      test("skipped test 1", () {}, skip: true);
  
negative.code:       test("skipped test 1", () {}, skip: true);
      }, skip: true);
    });
    group("passing group 3", () {
      test("passing test 1", () => expect(1, equals(1)));
    });
  }
  