74 lines
1.9 KiB
Java
74 lines
1.9 KiB
Java
/*
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* Copyright (C) 2012 The Guava Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.common.io;
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import static com.google.common.base.Preconditions.checkNotNull;
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import com.google.common.collect.ImmutableSet;
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.Random;
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/**
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* A byte source for testing that has configurable behavior.
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*
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* @author Colin Decker
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*/
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public final class TestByteSource extends ByteSource implements TestStreamSupplier {
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private final byte[] bytes;
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private final ImmutableSet<TestOption> options;
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private boolean inputStreamOpened;
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private boolean inputStreamClosed;
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TestByteSource(byte[] bytes, TestOption... options) {
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this.bytes = checkNotNull(bytes);
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this.options = ImmutableSet.copyOf(options);
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}
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@Override
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public boolean wasStreamOpened() {
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return inputStreamOpened;
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}
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@Override
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public boolean wasStreamClosed() {
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return inputStreamClosed;
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}
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@Override
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public InputStream openStream() throws IOException {
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inputStreamOpened = true;
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return new RandomAmountInputStream(new In(), new Random());
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}
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private final class In extends TestInputStream {
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public In() throws IOException {
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super(new ByteArrayInputStream(bytes), options);
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}
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@Override
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public void close() throws IOException {
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inputStreamClosed = true;
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super.close();
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}
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}
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}
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