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Unit tests for generic record reader/writer.

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akwizgran
2018-04-19 13:50:17 +01:00
parent 20a131bec5
commit cc2791c37f
2 changed files with 151 additions and 0 deletions
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102
bramble-core/src/test/java/org/briarproject/bramble/record/RecordReaderImplTest.java Normal file
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package org.briarproject.bramble.record;
import org.briarproject.bramble.api.FormatException;
import org.briarproject.bramble.api.record.Record;
import org.briarproject.bramble.api.record.RecordReader;
import org.briarproject.bramble.test.BrambleTestCase;
import org.briarproject.bramble.util.ByteUtils;
import org.junit.Test;
import java.io.ByteArrayInputStream;
import java.io.EOFException;
import static org.briarproject.bramble.api.record.Record.MAX_RECORD_PAYLOAD_BYTES;
import static org.briarproject.bramble.api.record.Record.RECORD_HEADER_BYTES;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
public class RecordReaderImplTest extends BrambleTestCase {
@Test
public void testAcceptsEmptyPayload() throws Exception {
// Version 1, type 2, payload length 0
byte[] header = new byte[] {1, 2, 0, 0};
ByteArrayInputStream in = new ByteArrayInputStream(header);
RecordReader reader = new RecordReaderImpl(in);
Record record = reader.readRecord();
assertEquals(1, record.getProtocolVersion());
assertEquals(2, record.getRecordType());
assertArrayEquals(new byte[0], record.getPayload());
}
@Test
public void testAcceptsMaxLengthPayload() throws Exception {
byte[] record =
new byte[RECORD_HEADER_BYTES + MAX_RECORD_PAYLOAD_BYTES];
// Version 1, type 2, payload length MAX_RECORD_PAYLOAD_BYTES
record[0] = 1;
record[1] = 2;
ByteUtils.writeUint16(MAX_RECORD_PAYLOAD_BYTES, record, 2);
ByteArrayInputStream in = new ByteArrayInputStream(record);
RecordReader reader = new RecordReaderImpl(in);
reader.readRecord();
}
@Test(expected = FormatException.class)
public void testFormatExceptionIfPayloadLengthIsNegative()
throws Exception {
// Version 1, type 2, payload length -1
byte[] header = new byte[] {1, 2, (byte) 0xFF, (byte) 0xFF};
ByteArrayInputStream in = new ByteArrayInputStream(header);
RecordReader reader = new RecordReaderImpl(in);
reader.readRecord();
}
@Test(expected = FormatException.class)
public void testFormatExceptionIfPayloadLengthIsTooLarge()
throws Exception {
// Version 1, type 2, payload length MAX_RECORD_PAYLOAD_BYTES + 1
byte[] header = new byte[] {1, 2, 0, 0};
ByteUtils.writeUint16(MAX_RECORD_PAYLOAD_BYTES + 1, header, 2);
ByteArrayInputStream in = new ByteArrayInputStream(header);
RecordReader reader = new RecordReaderImpl(in);
reader.readRecord();
}
@Test(expected = EOFException.class)
public void testEofExceptionIfProtocolVersionIsMissing() throws Exception {
ByteArrayInputStream in = new ByteArrayInputStream(new byte[0]);
RecordReader reader = new RecordReaderImpl(in);
reader.readRecord();
}
@Test(expected = EOFException.class)
public void testEofExceptionIfRecordTypeIsMissing() throws Exception {
ByteArrayInputStream in = new ByteArrayInputStream(new byte[1]);
RecordReader reader = new RecordReaderImpl(in);
reader.readRecord();
}
@Test(expected = EOFException.class)
public void testEofExceptionIfPayloadLengthIsMissing() throws Exception {
ByteArrayInputStream in = new ByteArrayInputStream(new byte[2]);
RecordReader reader = new RecordReaderImpl(in);
reader.readRecord();
}
@Test(expected = EOFException.class)
public void testEofExceptionIfPayloadLengthIsTruncated() throws Exception {
ByteArrayInputStream in = new ByteArrayInputStream(new byte[3]);
RecordReader reader = new RecordReaderImpl(in);
reader.readRecord();
}
@Test(expected = EOFException.class)
public void testEofExceptionIfPayloadIsTruncated() throws Exception {
// Version 0, type 0, payload length 1
byte[] header = new byte[] {0, 0, 0, 1};
ByteArrayInputStream in = new ByteArrayInputStream(header);
RecordReader reader = new RecordReaderImpl(in);
reader.readRecord();
}
}

49
bramble-core/src/test/java/org/briarproject/bramble/record/RecordWriterImplTest.java Normal file
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package org.briarproject.bramble.record;
import org.briarproject.bramble.api.record.Record;
import org.briarproject.bramble.api.record.RecordWriter;
import org.briarproject.bramble.test.BrambleTestCase;
import org.briarproject.bramble.util.ByteUtils;
import org.junit.Test;
import java.io.ByteArrayOutputStream;
import static org.briarproject.bramble.api.record.Record.MAX_RECORD_PAYLOAD_BYTES;
import static org.briarproject.bramble.api.record.Record.RECORD_HEADER_BYTES;
import static org.briarproject.bramble.test.TestUtils.getRandomBytes;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
public class RecordWriterImplTest extends BrambleTestCase {
@Test
public void testWritesEmptyRecord() throws Exception {
testWritesRecord(0);
}
@Test
public void testWritesMaxLengthRecord() throws Exception {
testWritesRecord(MAX_RECORD_PAYLOAD_BYTES);
}
private void testWritesRecord(int payloadLength) throws Exception {
byte protocolVersion = 123;
byte recordType = 45;
byte[] payload = getRandomBytes(payloadLength);
ByteArrayOutputStream out = new ByteArrayOutputStream();
RecordWriter writer = new RecordWriterImpl(out);
writer.writeRecord(new Record(protocolVersion, recordType, payload));
writer.flush();
byte[] written = out.toByteArray();
assertEquals(RECORD_HEADER_BYTES + payloadLength, written.length);
assertEquals(protocolVersion, written[0]);
assertEquals(recordType, written[1]);
assertEquals(payloadLength, ByteUtils.readUint16(written, 2));
byte[] writtenPayload = new byte[payloadLength];
System.arraycopy(written, RECORD_HEADER_BYTES, writtenPayload, 0,
payloadLength);
assertArrayEquals(payload, writtenPayload);
}
}