Split unittest tests into separate test files.

pkg/unittest/test/unittest_skipped_soloed_nested_test.dart

Index: pkg/unittest/test/unittest_skipped_soloed_nested_test.dart
===================================================================
--- pkg/unittest/test/unittest_skipped_soloed_nested_test.dart	(revision 0)
+++ pkg/unittest/test/unittest_skipped_soloed_nested_test.dart	(revision 0)
@@ -0,0 +1,77 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library unittestTest;
+import 'dart:isolate';
+import 'dart:async';
+import 'package:unittest/unittest.dart';
+
+part 'unittest_test_utils.dart';
+
+var testName = 'skipped/soloed nested groups with setup/teardown';
+
+var testFunction = (_) {
+  StringBuffer s = null;
+  setUp(() {
+    if (s == null)
+      s = new StringBuffer();
+  });
+  test('top level', () {
+    s.write('A');
+  });
+  skip_test('skipped top level', () {
+    s.write('B');
+  });
+  skip_group('skipped top level group', () {
+    setUp(() {
+      s.write('C');
+    });
+    solo_test('skipped solo nested test', () {
+      s.write('D');
+    });
+  });
+  group('non-solo group', () {
+    setUp(() {
+      s.write('E');
+    });
+    test('in non-solo group', () {
+      s.write('F');
+    });
+    solo_test('solo_test in non-solo group', () {
+      s.write('G');
+    });
+  });
+  solo_group('solo group', () {
+    setUp(() {
+      s.write('H');
+    });
+    test('solo group non-solo test', () {
+      s.write('I');
+    });
+    solo_test('solo group solo test', () {
+      s.write('J');
+    });
+    group('nested non-solo group in solo group', () {
+      test('nested non-solo group non-solo test', () {
+        s.write('K');
+      });
+      solo_test('nested non-solo group solo test', () {
+        s.write('L');
+      });
+    });
+  });
+  solo_test('final', () {
+    expect(s.toString(), "EGHIHJHKHL");
+  });
+};
+
+var expected =  buildStatusString(6, 0, 0,
+    'non-solo group solo_test in non-solo group::'
+    'solo group solo group non-solo test::'
+    'solo group solo group solo test::'
+    'solo group nested non-solo group in solo group nested non-'
+    'solo group non-solo test::'
+    'solo group nested non-solo group in solo'
+    ' group nested non-solo group solo test::'
+    'final');