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/*
* 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 static org.junit.jupiter.api.Assertions.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
import org.junit.jupiter.api.Test;
public class TestTMemoryInputTransport {
@Test
public void testFresh() throws Exception {
byte[] input_buf = new byte[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
TMemoryInputTransport trans = new TMemoryInputTransport(input_buf);
assertEquals(0, trans.getBufferPosition());
assertEquals(input_buf, trans.getBuffer());
assertEquals(10, trans.getBytesRemainingInBuffer());
byte[] buf1 = new byte[4];
trans.readAll(buf1, 0, 4);
assertArrayEquals(new byte[] {1, 2, 3, 4}, buf1);
assertEquals(4, trans.getBufferPosition());
assertEquals(6, trans.getBytesRemainingInBuffer());
trans.consumeBuffer(2);
assertEquals(6, trans.getBufferPosition());
assertEquals(4, trans.getBytesRemainingInBuffer());
trans.readAll(buf1, 0, 4);
assertArrayEquals(new byte[] {7, 8, 9, 10}, buf1);
assertEquals(10, trans.getBufferPosition());
assertEquals(0, trans.getBytesRemainingInBuffer());
}
@Test
public void testReused() throws Exception {
byte[] input_buf = new byte[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
TMemoryInputTransport trans = new TMemoryInputTransport(input_buf);
assertEquals(0, trans.getBufferPosition());
assertEquals(input_buf, trans.getBuffer());
assertEquals(10, trans.getBytesRemainingInBuffer());
byte[] new_buf = new byte[] {10, 9, 8};
trans.reset(new_buf);
assertEquals(0, trans.getBufferPosition());
assertEquals(new_buf, trans.getBuffer());
assertEquals(3, trans.getBytesRemainingInBuffer());
}
@Test
public void testWithOffsetAndLength() throws TTransportException {
byte[] input_buf = new byte[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
TMemoryInputTransport trans = new TMemoryInputTransport(input_buf, 1, 3);
assertEquals(1, trans.getBufferPosition());
assertEquals(3, trans.getBytesRemainingInBuffer());
{
byte[] readBuffer = new byte[3];
trans.readAll(readBuffer, 0, 3);
assertArrayEquals(new byte[] {2, 3, 4}, readBuffer);
assertThrows(Exception.class, () -> trans.readAll(readBuffer, 0, 3));
}
{
trans.reset(input_buf, 3, 4);
byte[] readBuffer2 = new byte[4];
trans.readAll(readBuffer2, 0, 4);
assertArrayEquals(new byte[] {4, 5, 6, 7}, readBuffer2);
}
}
}
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