jvmTest.okhttp3.internal.http2.HuffmanTest Maven / Gradle / Ivy
/*
* Copyright 2013 Twitter, Inc.
*
* 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 okhttp3.internal.http2;
import java.io.IOException;
import java.util.Random;
import okio.Buffer;
import okio.ByteString;
import org.junit.jupiter.api.Test;
import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.jupiter.api.Assertions.assertEquals;
/** Original version of this class was lifted from {@code com.twitter.hpack.HuffmanTest}. */
public final class HuffmanTest {
@Test public void roundTripForRequestAndResponse() throws IOException {
String s = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
for (int i = 0; i < s.length(); i++) {
assertRoundTrip(ByteString.encodeUtf8(s.substring(0, i)));
}
Random random = new Random(123456789L);
byte[] buf = new byte[4096];
random.nextBytes(buf);
assertRoundTrip(ByteString.of(buf));
}
private void assertRoundTrip(ByteString data) throws IOException {
Buffer encodeBuffer = new Buffer();
Huffman.INSTANCE.encode(data, encodeBuffer);
assertThat(Huffman.INSTANCE.encodedLength(data)).isEqualTo(encodeBuffer.size());
Buffer decodeBuffer = new Buffer();
Huffman.INSTANCE.decode(encodeBuffer, encodeBuffer.size(), decodeBuffer);
assertEquals(data, decodeBuffer.readByteString());
}
}