/*
* Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
*
* Licensed 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 com.hazelcast.internal.util;
import com.hazelcast.test.HazelcastParallelClassRunner;
import com.hazelcast.test.annotation.ParallelTest;
import com.hazelcast.test.annotation.QuickTest;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import java.io.ByteArrayInputStream;
import static com.hazelcast.nio.IOUtil.closeResource;
import static org.junit.Assert.assertEquals;
@RunWith(HazelcastParallelClassRunner.class)
@Category({QuickTest.class, ParallelTest.class})
public class BufferingInputStreamTest {
private final byte[] mockInput = {1, 2, 3, 4};
private BufferingInputStream in;
@Before
public void setUp() {
in = new BufferingInputStream(new ByteArrayInputStream(mockInput), 1 << 16);
}
@After
public void tearDown() throws Exception {
closeResource(in);
}
@Test
public void readByteByByte() throws Exception {
for (byte b : mockInput) {
assertEquals(b, (byte) in.read());
}
assertEquals(-1, in.read());
}
@Test
public void readBufByBuf() throws Exception {
// given
byte[] buf = new byte[mockInput.length / 2];
int streamPos = 0;
// when - then
for (int count; (count = in.read(buf)) != -1; ) {
for (int i = 0; i < count; i++) {
assertEquals(mockInput[streamPos++], buf[i]);
}
}
assertEquals(mockInput.length, streamPos);
}
}