anchor.diff:          asyncTestDone("testOutputStreamWriteString");
         });
       });
  -    asyncTestStarted();
     }
   
   
  
positive.code:   // Test that opens the same file for writing then for appending to test
    // that the file is not truncated when opened for appending.
    static void testAppend() {
      var file = new File('${tempDirectory.path}/out_append');
      file.open(mode: WRITE).then((openedFile) {
        openedFile.writeString("asdf").then((ignore) {
  
negative.code:       testRename();
        testRenameSync();
        testLastModified();
        asyncEnd();
      });
    }
  }
  