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/*
* Copyright (C) 2012 The Guava Authors
*
* 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.google.common.io;
import static com.google.common.base.Preconditions.checkNotNull;
import com.google.common.collect.ImmutableSet;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Random;
/**
* A byte source for testing that has configurable behavior.
*
* @author Colin Decker
*/
public final class TestByteSource extends ByteSource implements TestStreamSupplier {
private final byte[] bytes;
private final ImmutableSet<TestOption> options;
private boolean inputStreamOpened;
private boolean inputStreamClosed;
TestByteSource(byte[] bytes, TestOption... options) {
this.bytes = checkNotNull(bytes);
this.options = ImmutableSet.copyOf(options);
}
@Override
public boolean wasStreamOpened() {
return inputStreamOpened;
}
@Override
public boolean wasStreamClosed() {
return inputStreamClosed;
}
@Override
public InputStream openStream() throws IOException {
inputStreamOpened = true;
return new RandomAmountInputStream(new In(), new Random());
}
private final class In extends TestInputStream {
public In() throws IOException {
super(new ByteArrayInputStream(bytes), options);
}
@Override
public void close() throws IOException {
inputStreamClosed = true;
super.close();
}
}
}
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