io.opencensus.contrib.spring.sleuth.v1x.OpenCensusSleuthSpanTest.java Source code

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Here is the source code for io.opencensus.contrib.spring.sleuth.v1x.OpenCensusSleuthSpanTest.java

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/*
 * Copyright 2018, OpenCensus 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 io.opencensus.contrib.spring.sleuth.v1x;

import static com.google.common.truth.Truth.assertThat;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import org.springframework.cloud.sleuth.Span;

/** Unit tests for {@link OpenCensusSleuthSpan}. */
@RunWith(JUnit4.class)
public class OpenCensusSleuthSpanTest {
    @Test
    public void testFromSleuthSampled() {
        Span sleuthSpan = Span.builder().name("name").traceIdHigh(12L).traceId(22L).spanId(23L).exportable(true)
                .build();
        assertSpanEquals(new OpenCensusSleuthSpan(sleuthSpan), sleuthSpan);
    }

    @Test
    public void testFromSleuthNotSampled() {
        Span sleuthSpan = Span.builder().name("name").traceIdHigh(12L).traceId(22L).spanId(23L).exportable(false)
                .build();
        assertSpanEquals(new OpenCensusSleuthSpan(sleuthSpan), sleuthSpan);
    }

    private static final void assertSpanEquals(io.opencensus.trace.Span span, Span sleuthSpan) {
        assertThat(span.getContext().isValid()).isTrue();
        assertThat(Long.parseLong(span.getContext().getTraceId().toLowerBase16().substring(0, 16), 16))
                .isEqualTo(sleuthSpan.getTraceIdHigh());
        assertThat(Long.parseLong(span.getContext().getTraceId().toLowerBase16().substring(16, 32), 16))
                .isEqualTo(sleuthSpan.getTraceId());
        assertThat(Long.parseLong(span.getContext().getSpanId().toLowerBase16(), 16))
                .isEqualTo(sleuthSpan.getSpanId());
        assertThat(span.getContext().getTraceOptions().isSampled()).isEqualTo(sleuthSpan.isExportable());
    }
}