[Cronet] Add isDone() check in CronetBidirectionalStream#onWritevCompleted

components/cronet/android/test/javatests/src/org/chromium/net/TestBidirectionalStreamCallback.java

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.net;
 
 import android.os.ConditionVariable;
 
 import static junit.framework.Assert.assertEquals;
 import static junit.framework.Assert.assertFalse;
@@ skipping 51 matching lines @@
 
     // position() of ByteBuffer prior to read() call.
     private int mBufferPositionBeforeRead;
 
     // Data to write.
     private final ArrayList<WriteBuffer> mWriteBuffers = new ArrayList<WriteBuffer>();
 
     // Buffers that we yet to receive the corresponding onWriteCompleted callback.
     private final ArrayList<WriteBuffer> mWriteBuffersToBeAcked = new ArrayList<WriteBuffer>();
 
+    // Whether to use a direct executor.
+    private final boolean mUseDirectExecutor;
+    private final DirectExecutor mDirectExecutor;
+
     private class ExecutorThreadFactory implements ThreadFactory {
         public Thread newThread(Runnable r) {
             mExecutorThread = new Thread(r);
             return mExecutorThread;
         }
     }
 
     private static class WriteBuffer {
         final ByteBuffer mBuffer;
         final boolean mFlush;
         public WriteBuffer(ByteBuffer buffer, boolean flush) {
             mBuffer = buffer;
             mFlush = flush;
         }
     }
 
+    private static class DirectExecutor implements Executor {
+        @Override
+        public void execute(Runnable task) {
+            task.run();
+        }
+    }
     public enum ResponseStep {
         NOTHING,
         ON_STREAM_READY,
         ON_RESPONSE_STARTED,
         ON_READ_COMPLETED,
         ON_WRITE_COMPLETED,
         ON_TRAILERS,
         ON_CANCELED,
         ON_FAILED,
         ON_SUCCEEDED,
     }
 
     public enum FailureType {
         NONE,
         CANCEL_SYNC,
         CANCEL_ASYNC,
         // Same as above, but continues to advance the stream after posting
         // the cancellation task.
         CANCEL_ASYNC_WITHOUT_PAUSE,
         THROW_SYNC
     }
 
+    public TestBidirectionalStreamCallback() {
+        mUseDirectExecutor = false;
+        mDirectExecutor = null;
+    }
+
+    public TestBidirectionalStreamCallback(boolean useDirectExecutor) {
+        mUseDirectExecutor = useDirectExecutor;
+        mDirectExecutor = new DirectExecutor();
+    }
+
     public void setAutoAdvance(boolean autoAdvance) {
         mAutoAdvance = autoAdvance;
     }
 
     public void setFailure(FailureType failureType, ResponseStep failureStep) {
         mFailureStep = failureStep;
         mFailureType = failureType;
     }
 
     public void blockForDone() {
         mDone.block();
     }
 
     public void waitForNextReadStep() {
         mReadStepBlock.block();
         mReadStepBlock.close();
     }
 
     public void waitForNextWriteStep() {
         mWriteStepBlock.block();
         mWriteStepBlock.close();
     }
 
     public Executor getExecutor() {
+        if (mUseDirectExecutor) {
+            return mDirectExecutor;
+        }
         return mExecutorService;
     }
 
     public void shutdownExecutor() {
+        if (mUseDirectExecutor) {
+            throw new UnsupportedOperationException("DirectExecutor doesn't support shutdown");
+        }
         mExecutorService.shutdown();
     }
 
     public void addWriteData(byte[] data) {
         addWriteData(data, true);
     }
 
     public void addWriteData(byte[] data, boolean flush) {
         ByteBuffer writeBuffer = ByteBuffer.allocateDirect(data.length);
         writeBuffer.put(data);
@@ skipping 219 matching lines @@
         };
         if (mFailureType == FailureType.CANCEL_ASYNC
                 || mFailureType == FailureType.CANCEL_ASYNC_WITHOUT_PAUSE) {
             getExecutor().execute(task);
         } else {
             task.run();
         }
         return mFailureType != FailureType.CANCEL_ASYNC_WITHOUT_PAUSE;
     }
 }