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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.autofuzz;
import static com.code_intelligence.jazzer.autofuzz.TestHelpers.autofuzzTestCase;
import static com.code_intelligence.jazzer.autofuzz.TestHelpers.consumeTestCase;
import static org.junit.Assert.assertEquals;
import com.code_intelligence.jazzer.api.CannedFuzzedDataProvider;
import com.code_intelligence.jazzer.api.FuzzedDataProvider;
import com.google.json.JsonSanitizer;
import java.io.ByteArrayInputStream;
import java.lang.reflect.Type;
import java.util.Arrays;
import java.util.Collections;
import java.util.Map;
import org.junit.Test;
public class MetaTest {
public enum TestEnum {
FOO,
BAR,
BAZ,
}
@Test
public void testConsume() throws NoSuchMethodException {
consumeTestCase(5, "5", Collections.singletonList(5));
consumeTestCase((short) 5, "(short) 5", Collections.singletonList((short) 5));
consumeTestCase(5L, "5L", Collections.singletonList(5L));
consumeTestCase(5.0F, "5.0F", Collections.singletonList(5.0F));
consumeTestCase('\n', "'\\n'", Collections.singletonList('\n'));
consumeTestCase('\'', "'\\''", Collections.singletonList('\''));
consumeTestCase('\\', "'\\\\'", Collections.singletonList('\\'));
String testString = "foo\n\t\\\"bar";
// The expected string is obtained from testString by escaping and wrapping into escaped quotes.
consumeTestCase(testString, "\"foo\\n\\t\\\\\\\"bar\"",
Arrays.asList((byte) 1, // do not return null
testString.length(), testString));
consumeTestCase(null, "null", Collections.singletonList((byte) 0));
boolean[] testBooleans = new boolean[] {true, false, true};
consumeTestCase(testBooleans, "new boolean[]{true, false, true}",
Arrays.asList((byte) 1, // do not return null for the array
2 * 3, testBooleans));
char[] testChars = new char[] {'a', '\n', '\''};
consumeTestCase(testChars, "new char[]{'a', '\\n', '\\''}",
Arrays.asList((byte) 1, // do not return null for the array
2 * 3 * Character.BYTES + Character.BYTES, testChars[0], 2 * 3 * Character.BYTES,
2 * 3 * Character.BYTES, // remaining bytes, 2 times what is needed for 3 chars
testChars[1], testChars[2]));
char[] testNoChars = new char[] {};
consumeTestCase(testNoChars, "new char[]{}",
Arrays.asList((byte) 1, // do not return null for the array
0, 'a', 0, 0));
short[] testShorts = new short[] {(short) 1, (short) 2, (short) 3};
consumeTestCase(testShorts, "new short[]{(short) 1, (short) 2, (short) 3}",
Arrays.asList((byte) 1, // do not return null for the array
2 * 3 * Short.BYTES, // remaining bytes
testShorts));
long[] testLongs = new long[] {1L, 2L, 3L};
consumeTestCase(testLongs, "new long[]{1L, 2L, 3L}",
Arrays.asList((byte) 1, // do not return null for the array
2 * 3 * Long.BYTES, // remaining bytes
testLongs));
consumeTestCase(new String[] {"foo", "bar", "foo\nbar"},
"new java.lang.String[]{\"foo\", \"bar\", \"foo\\nbar\"}",
Arrays.asList((byte) 1, // do not return null for the array
32, // remaining bytes
(byte) 1, // do not return null for the string
31, // remaining bytes
"foo",
28, // remaining bytes
28, // array length
(byte) 1, // do not return null for the string
27, // remaining bytes
"bar",
(byte) 1, // do not return null for the string
23, // remaining bytes
"foo\nbar"));
byte[] testInputStreamBytes = new byte[] {(byte) 1, (byte) 2, (byte) 3};
consumeTestCase(new ByteArrayInputStream(testInputStreamBytes),
"new java.io.ByteArrayInputStream(new byte[]{(byte) 1, (byte) 2, (byte) 3})",
Arrays.asList((byte) 1, // do not return null for the InputStream
2 * 3, // remaining bytes (twice the desired length)
testInputStreamBytes));
consumeTestCase(TestEnum.BAR,
String.format("%s.%s", TestEnum.class.getName(), TestEnum.BAR.name()),
Arrays.asList((byte) 1, // do not return null for the enum value
1 /* second value */
));
consumeTestCase(YourAverageJavaClass.class,
"com.code_intelligence.jazzer.autofuzz.YourAverageJavaClass.class",
Collections.singletonList((byte) 1));
Type stringStringMapType =
MetaTest.class.getDeclaredMethod("returnsStringStringMap").getGenericReturnType();
Map<String, String> expectedMap =
java.util.stream.Stream
.of(new java.util.AbstractMap.SimpleEntry<>("key0", "value0"),
new java.util.AbstractMap.SimpleEntry<>("key1", "value1"),
new java.util.AbstractMap.SimpleEntry<>("key2", (java.lang.String) null))
.collect(java.util.HashMap::new,
(map, e) -> map.put(e.getKey(), e.getValue()), java.util.HashMap::putAll);
consumeTestCase(stringStringMapType, expectedMap,
"java.util.stream.Stream.<java.util.AbstractMap.SimpleEntry<java.lang.String, java.lang.String>>of(new java.util.AbstractMap.SimpleEntry<>(\"key0\", \"value0\"), new java.util.AbstractMap.SimpleEntry<>(\"key1\", \"value1\"), new java.util.AbstractMap.SimpleEntry<>(\"key2\", (java.lang.String) null)).collect(java.util.HashMap::new, (map, e) -> map.put(e.getKey(), e.getValue()), java.util.HashMap::putAll)",
Arrays.asList((byte) 1, // do not return null for the map
32, // remaining bytes
(byte) 1, // do not return null for the string
31, // remaining bytes
"key0",
(byte) 1, // do not return null for the string
28, // remaining bytes
"value0",
28, // remaining bytes
28, // consumeArrayLength
(byte) 1, // do not return null for the string
27, // remaining bytes
"key1",
(byte) 1, // do not return null for the string
23, // remaining bytes
"value1",
(byte) 1, // do not return null for the string
27, // remaining bytes
"key2",
(byte) 0 // *do* return null for the string
));
}
private Map<String, String> returnsStringStringMap() {
throw new IllegalStateException(
"Should not be called, only exists to construct its generic return type");
}
public static boolean isFive(int arg) {
return arg == 5;
}
public static boolean intEquals(int arg1, int arg2) {
return arg1 == arg2;
}
@Test
public void testAutofuzz() throws NoSuchMethodException {
autofuzzTestCase(true, "com.code_intelligence.jazzer.autofuzz.MetaTest.isFive(5)",
MetaTest.class.getMethod("isFive", int.class), Collections.singletonList(5));
autofuzzTestCase(false, "com.code_intelligence.jazzer.autofuzz.MetaTest.intEquals(5, 4)",
MetaTest.class.getMethod("intEquals", int.class, int.class), Arrays.asList(5, 4));
autofuzzTestCase("foobar", "(\"foo\").concat(\"bar\")",
String.class.getMethod("concat", String.class),
Arrays.asList((byte) 1, 6, "foo", (byte) 1, 6, "bar"));
autofuzzTestCase("jazzer", "new java.lang.String(\"jazzer\")",
String.class.getConstructor(String.class), Arrays.asList((byte) 1, 12, "jazzer"));
autofuzzTestCase("\"jazzer\"", "com.google.json.JsonSanitizer.sanitize(\"jazzer\")",
JsonSanitizer.class.getMethod("sanitize", String.class),
Arrays.asList((byte) 1, 12, "jazzer"));
FuzzedDataProvider data =
CannedFuzzedDataProvider.create(Arrays.asList((byte) 1, // do not return null
8, // remainingBytes
"buzz"));
assertEquals("fizzbuzz", new Meta(null).autofuzz(data, "fizz" ::concat));
}
// Regression test for https://github.com/CodeIntelligenceTesting/jazzer/issues/465.
@Test
public void testPrivateInterface() {
autofuzzTestCase(null,
"com.code_intelligence.jazzer.autofuzz.OpinionatedClass.doStuffWithPrivateInterface(((java.util.function.Supplier<com.code_intelligence.jazzer.autofuzz.OpinionatedClass.PublicImplementation>) (() -> {com.code_intelligence.jazzer.autofuzz.OpinionatedClass.PublicImplementation autofuzzVariable0 = new com.code_intelligence.jazzer.autofuzz.OpinionatedClass.PublicImplementation(); return autofuzzVariable0;})).get())",
OpinionatedClass.class.getDeclaredMethods()[0],
Arrays.asList((byte) 1, // do not return null
0, // first (and only) class on the classpath
(byte) 1, // do not return null
0 /* first (and only) constructor*/));
}
Class<?>[] returnsClassArray() {
throw new IllegalStateException(
"Should not be called, only exists to construct its generic return type");
}
@Test
public void testGetRawType() throws NoSuchMethodException {
Type classArrayType =
MetaTest.class.getDeclaredMethod("returnsClassArray").getGenericReturnType();
assertEquals(Class[].class, Meta.getRawType(classArrayType));
}
}
class OpinionatedClass {
public static void doStuffWithPrivateInterface(
@SuppressWarnings("unused") PrivateInterface thing) {}
private interface PrivateInterface {}
public static class PublicImplementation implements PrivateInterface {}
}
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