TBR: Revrt r21819 until I can figure out why ity is breaking the scheduled_test package.

pkg/unittest/test/unittest_test.dart

Index: pkg/unittest/test/unittest_test.dart
===================================================================
--- pkg/unittest/test/unittest_test.dart	(revision 21825)
+++ pkg/unittest/test/unittest_test.dart	(working copy)
@@ -68,26 +68,6 @@
   }
 }
 
-makeDelayedSetup(index, s) => () {
-  return new Future.delayed(new Duration(milliseconds:1), () {
-    s.write('l$index U ');
-  });
-};
-
-makeDelayedTeardown(index, s) => () {
-  return new Future.delayed(new Duration(milliseconds:1), () {
-    s.write('l$index D ');
-  });
-};
-
-makeImmediateSetup(index, s) => () {
-  s.write('l$index U ');
-};
-
-makeImmediateTeardown(index, s) => () {
-  s.write('l$index D ');
-};
-
 runTest() {
   port.receive((String testName, sendport) {
     var testConfig = new TestConfiguration(sendport);
@@ -319,31 +299,6 @@
       });
     } else if (testName == 'runTests without tests') {
       runTests();
-    } else if (testName == 'nested groups setup/teardown') {
-      StringBuffer s = new StringBuffer();
-      group('level 1', () {
-        setUp(makeDelayedSetup(1, s));
-        group('level 2', () {
-          setUp(makeImmediateSetup(2, s));
-          tearDown(makeDelayedTeardown(2, s));
-          group('level 3', () {
-            group('level 4', () {
-              setUp(makeDelayedSetup(4, s));
-              tearDown(makeImmediateTeardown(4, s));
-              group('level 5', () {
-                setUp(makeImmediateSetup(5, s));
-                group('level 6', () {
-                  tearDown(makeDelayedTeardown(6, s));
-                  test('inner', () {});
-                });
-              });
-            });
-          });
-        });
-      });
-      test('after nest', () {
-        expect(s.toString(), "l1 U l2 U l4 U l5 U l6 D l4 D l2 D ");
-      });
     }
   });
 }
@@ -400,10 +355,7 @@
         'foo6'),
     'testCases immutable':
         buildStatusString(1, 0, 0, 'testCases immutable'),
-    'runTests without tests': buildStatusString(0, 0, 0, null),
-    'nested groups setup/teardown':
-        buildStatusString(2, 0, 0,
-            'level 1 level 2 level 3 level 4 level 5 level 6 inner::after nest')
+    'runTests without tests': buildStatusString(0, 0, 0, null)
   };
 
   tests.forEach((String name, String expected) {