Revert "unittest step 3 and 4: remove TestFramework.dart, make test.dart use"

tests/isolate/src/SpawnTest.dart

Index: tests/isolate/src/SpawnTest.dart
diff --git a/tests/isolate/src/SpawnTest.dart b/tests/isolate/src/SpawnTest.dart
index 43c3953ee01535aa4984a06ee5b97021b1f4f3ec..6194312a0b8eeb20551805c88afd5cb0ba719a68 100644
--- a/tests/isolate/src/SpawnTest.dart
+++ b/tests/isolate/src/SpawnTest.dart
@@ -4,15 +4,14 @@
 
 #library("SpawnTest");
 #import("dart:isolate");
-#import('../../../lib/unittest/unittest.dart');
+#import("TestFramework.dart");
 
-main() {
-  test("spawn a new isolate", () {
-    SpawnedIsolate isolate = new SpawnedIsolate();
-    isolate.spawn().then(expectAsync1((SendPort port) {
-      port.call(42).then(expectAsync1((message) {
-        Expect.equals(42, message);
-      }));
+void test(TestExpectation expect) {
+  SpawnedIsolate isolate = new SpawnedIsolate();
+  expect.completes(isolate.spawn()).then((SendPort port) {
+    port.call(42).then(expect.runs1((message) {
+      Expect.equals(42, message);
+      expect.succeeded();
     }));
   });
 }
@@ -30,3 +29,7 @@ class SpawnedIsolate extends Isolate {
   }
 
 }
+
+main() {
+  runTests([test]);
+}