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// Copyright 2021 Code Intelligence GmbH
//
// 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.code_intelligence.jazzer.runtime;
import com.code_intelligence.jazzer.api.CannedFuzzedDataProvider;
import com.code_intelligence.jazzer.api.FuzzedDataProvider;
import java.io.IOException;
import java.util.Arrays;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import java.util.stream.LongStream;
import org.junit.Assert;
import org.junit.Test;
public class RecordingFuzzedDataProviderTest {
@Test
public void testRecordingFuzzedDataProvider() throws IOException {
FuzzedDataProvider mockData = new MockFuzzedDataProvider();
String referenceResult = sampleFuzzTarget(mockData);
FuzzedDataProvider recordingMockData =
RecordingFuzzedDataProvider.makeFuzzedDataProviderProxy(mockData);
Assert.assertEquals(referenceResult, sampleFuzzTarget(recordingMockData));
String cannedMockDataString =
RecordingFuzzedDataProvider.serializeFuzzedDataProviderProxy(recordingMockData);
FuzzedDataProvider cannedMockData = new CannedFuzzedDataProvider(cannedMockDataString);
Assert.assertEquals(referenceResult, sampleFuzzTarget(cannedMockData));
}
private String sampleFuzzTarget(FuzzedDataProvider data) {
StringBuilder result = new StringBuilder();
result.append(data.consumeString(10));
int[] ints = data.consumeInts(5);
result.append(Arrays.stream(ints).mapToObj(Integer::toString).collect(Collectors.joining(",")));
result.append(data.pickValue(ints));
result.append(data.consumeString(20));
result.append(data.pickValues(Arrays.stream(ints).boxed().collect(Collectors.toSet()), 5)
.stream()
.map(Integer::toHexString)
.collect(Collectors.joining(",")));
result.append(data.remainingBytes());
return result.toString();
}
private static final class MockFuzzedDataProvider implements FuzzedDataProvider {
@Override
public boolean consumeBoolean() {
return true;
}
@Override
public boolean[] consumeBooleans(int maxLength) {
return new boolean[] {false, true};
}
@Override
public byte consumeByte() {
return 2;
}
@Override
public byte consumeByte(byte min, byte max) {
return max;
}
@Override
public short consumeShort() {
return 2;
}
@Override
public short consumeShort(short min, short max) {
return min;
}
@Override
public short[] consumeShorts(int maxLength) {
return new short[] {2, 4, 7};
}
@Override
public int consumeInt() {
return 5;
}
@Override
public int consumeInt(int min, int max) {
return max;
}
@Override
public int[] consumeInts(int maxLength) {
return IntStream.range(0, maxLength).toArray();
}
@Override
public long consumeLong() {
return 42;
}
@Override
public long consumeLong(long min, long max) {
return min;
}
@Override
public long[] consumeLongs(int maxLength) {
return LongStream.range(0, maxLength).toArray();
}
@Override
public float consumeFloat() {
return Float.NaN;
}
@Override
public float consumeRegularFloat() {
return 0.3f;
}
@Override
public float consumeRegularFloat(float min, float max) {
return min;
}
@Override
public float consumeProbabilityFloat() {
return 0.2f;
}
@Override
public double consumeDouble() {
return Double.NaN;
}
@Override
public double consumeRegularDouble(double min, double max) {
return max;
}
@Override
public double consumeRegularDouble() {
return Math.PI;
}
@Override
public double consumeProbabilityDouble() {
return 0.5;
}
@Override
public char consumeChar() {
return 'C';
}
@Override
public char consumeChar(char min, char max) {
return min;
}
@Override
public char consumeCharNoSurrogates() {
return 'C';
}
@Override
public String consumeAsciiString(int maxLength) {
return "foobar";
}
@Override
public String consumeString(int maxLength) {
return "fooۊ";
}
@Override
public String consumeRemainingAsAsciiString() {
return "foobar";
}
@Override
public String consumeRemainingAsString() {
return "foobar";
}
@Override
public byte[] consumeBytes(int maxLength) {
return new byte[maxLength];
}
@Override
public byte[] consumeRemainingAsBytes() {
return new byte[] {1};
}
@Override
public int remainingBytes() {
return 1;
}
}
}
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