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Add fuzzing test for illegal UTF-8 byte sequences.

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akwizgran
2018-10-29 16:44:02 +00:00
parent 53da13794f
commit adc6fb2fd5
1 changed files with 41 additions and 0 deletions
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41
bramble-core/src/test/java/org/briarproject/bramble/data/BdfReaderImplFuzzingTest.java Normal file
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package org.briarproject.bramble.data;
import org.briarproject.bramble.test.BrambleTestCase;
import org.junit.Before;
import org.junit.Test;
import java.io.ByteArrayInputStream;
import java.util.Random;
import static org.briarproject.bramble.api.data.BdfReader.DEFAULT_MAX_BUFFER_SIZE;
import static org.briarproject.bramble.api.data.BdfReader.DEFAULT_NESTED_LIMIT;
import static org.briarproject.bramble.test.TestUtils.isOptionalTestEnabled;
import static org.junit.Assert.assertTrue;
import static org.junit.Assume.assumeTrue;
public class BdfReaderImplFuzzingTest extends BrambleTestCase {
@Before
public void setUp() {
assumeTrue(isOptionalTestEnabled(BdfReaderImplFuzzingTest.class));
}
@Test
public void testStringFuzzing() throws Exception {
Random random = new Random();
byte[] buf = new byte[22];
ByteArrayInputStream in = new ByteArrayInputStream(buf);
for (int i = 0; i < 100_000_000; i++) {
random.nextBytes(buf);
buf[0] = 0x41; // String with 1-byte length
buf[1] = 0x14; // Length 20 bytes
in.reset();
BdfReaderImpl r = new BdfReaderImpl(in, DEFAULT_NESTED_LIMIT,
DEFAULT_MAX_BUFFER_SIZE);
int length = r.readString().length();
assertTrue(length >= 0);
assertTrue(length <= 20);
assertTrue(r.eof());
}
}
}