1 files changed, 51 insertions, 0 deletions
diff --git a/lib/java/src/test/java/org/apache/thrift/transport/TestAutoExpandingBufferReadTransport.java b/lib/java/src/test/java/org/apache/thrift/transport/TestAutoExpandingBufferReadTransport.java
new file mode 100644
index 000000000..b635e60fa
--- /dev/null
+++ b/lib/java/src/test/java/org/apache/thrift/transport/TestAutoExpandingBufferReadTransport.java
@@ -0,0 +1,51 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.thrift.transport;
+
+import java.nio.ByteBuffer;
+
+import junit.framework.TestCase;
+import org.apache.thrift.TConfiguration;
+
+public class TestAutoExpandingBufferReadTransport extends TestCase {
+  private static final byte[] HUNDRED_BYTES = new byte[100];
+
+  static {
+    for (byte i = 0; i < 100; i++) {
+      HUNDRED_BYTES[i] = i;
+    }
+  }
+
+  public void testIt() throws Exception {
+    AutoExpandingBufferReadTransport t = new AutoExpandingBufferReadTransport(new TConfiguration(), 150);
+
+    TMemoryInputTransport membuf = new TMemoryInputTransport(new TConfiguration(), HUNDRED_BYTES);
+
+    t.fill(membuf, 100);
+    assertEquals(100, t.getBytesRemainingInBuffer());
+    assertEquals(0, t.getBufferPosition());
+
+    byte[] target = new byte[10];
+    assertEquals(10, t.read(target, 0, 10));
+    assertEquals(ByteBuffer.wrap(HUNDRED_BYTES, 0, 10), ByteBuffer.wrap(target));
+
+    assertEquals(90, t.getBytesRemainingInBuffer());
+    assertEquals(10, t.getBufferPosition());
+  }
+}