ThriftCodecTest.java

/**
 * Copyright 2015-2016 The OpenZipkin Authors
 *
 * 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 zipkin.internal;

import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.List;
import org.junit.Test;
import zipkin.CodecTest;
import zipkin.DependencyLink;
import zipkin.Span;
import zipkin.TestObjects;

import static java.util.Arrays.asList;
import static org.assertj.core.api.Assertions.assertThat;

public final class ThriftCodecTest extends CodecTest {
  private final ThriftCodec codec = new ThriftCodec();

  @Override
  protected ThriftCodec codec() {
    return codec;
  }

  @Test
  public void readSpanFromByteBuffer() throws IOException {
    for (Span span : TestObjects.TRACE) {
      byte[] bytes = codec().writeSpan(span);
      assertThat(codec().readSpan(ByteBuffer.wrap(bytes)))
          .isEqualTo(span);
    }
  }

  @Test
  public void sizeInBytes_span() throws IOException {
    Span span = TestObjects.LOTS_OF_SPANS[0];
    assertThat(ThriftCodec.SPAN_ADAPTER.sizeInBytes(span))
        .isEqualTo(codec().writeSpan(span).length);
  }

  @Test
  public void sizeInBytes_trace() throws IOException {
    assertThat(ThriftCodec.SPANS_ADAPTER.sizeInBytes(TestObjects.TRACE))
        .isEqualTo(codec().writeSpans(TestObjects.TRACE).length);
  }

  @Test
  public void sizeInBytes_links() throws IOException {
    assertThat(ThriftCodec.DEPENDENCY_LINKS_ADAPTER.sizeInBytes(TestObjects.LINKS))
        .isEqualTo(codec().writeDependencyLinks(TestObjects.LINKS).length);
  }

  @Test
  public void readDependencyLinksFromByteBuffer() throws IOException {
    List<DependencyLink> links = asList(
        DependencyLink.create("foo", "bar", 2),
        DependencyLink.create("bar", "baz", 3)
    );
    byte[] bytes = codec().writeDependencyLinks(links);
    assertThat(codec().readDependencyLinks(ByteBuffer.wrap(bytes)))
        .isEqualTo(links);
  }
}