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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.commons.io.output;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import java.io.IOException;
import java.io.OutputStream;
import java.util.concurrent.atomic.AtomicBoolean;
import org.junit.jupiter.api.Test;
/**
* Tests {@link ThresholdingOutputStream}.
*/
public class ThresholdingOutputStreamTest {
@Test
public void testSetByteCount_OutputStream() throws Exception {
final AtomicBoolean reached = new AtomicBoolean(false);
try (ThresholdingOutputStream tos = new ThresholdingOutputStream(3) {
{
setByteCount(2);
}
@Override
protected OutputStream getOutputStream() throws IOException {
return new ByteArrayOutputStream(4);
}
@Override
protected void thresholdReached() throws IOException {
reached.set(true);
}
}) {
tos.write('a');
assertFalse(reached.get());
tos.write('a');
assertTrue(reached.get());
}
}
@Test
public void testSetByteCount_Stream() throws Exception {
final AtomicBoolean reached = new AtomicBoolean(false);
try (ThresholdingOutputStream tos = new ThresholdingOutputStream(3) {
{
setByteCount(2);
}
@Override
protected OutputStream getStream() throws IOException {
return new ByteArrayOutputStream(4);
}
@Override
protected void thresholdReached() throws IOException {
reached.set(true);
}
}) {
tos.write('a');
assertFalse(reached.get());
tos.write('a');
assertTrue(reached.get());
}
}
@Test
public void testThresholdIOConsumer() throws Exception {
final AtomicBoolean reached = new AtomicBoolean();
// Null threshold consumer
reached.set(false);
try (ThresholdingOutputStream tos = new ThresholdingOutputStream(1, null,
os -> new ByteArrayOutputStream(4))) {
tos.write('a');
assertFalse(reached.get());
tos.write('a');
assertFalse(reached.get());
}
// Null output stream function
reached.set(false);
try (ThresholdingOutputStream tos = new ThresholdingOutputStream(1, os -> reached.set(true), null)) {
tos.write('a');
assertFalse(reached.get());
tos.write('a');
assertTrue(reached.get());
}
// non-null inputs.
reached.set(false);
try (ThresholdingOutputStream tos = new ThresholdingOutputStream(1, os -> reached.set(true),
os -> new ByteArrayOutputStream(4))) {
tos.write('a');
assertFalse(reached.get());
tos.write('a');
assertTrue(reached.get());
}
}
@Test
public void testThresholdIOConsumerIOException() throws Exception {
try (ThresholdingOutputStream tos = new ThresholdingOutputStream(1, os -> {
throw new IOException("Threshold reached.");
}, os -> new ByteArrayOutputStream(4))) {
tos.write('a');
assertThrows(IOException.class, () -> tos.write('a'));
}
}
@Test
public void testThresholdIOConsumerUncheckedException() throws Exception {
try (ThresholdingOutputStream tos = new ThresholdingOutputStream(1, os -> {
throw new IllegalStateException("Threshold reached.");
}, os -> new ByteArrayOutputStream(4))) {
tos.write('a');
assertThrows(IllegalStateException.class, () -> tos.write('a'));
}
}
}
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