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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.metrics;
import static com.google.common.truth.Truth.assertThat;
import com.google.common.testing.EqualsTester;
import io.opencensus.common.Functions;
import io.opencensus.common.Timestamp;
import io.opencensus.metrics.TimeSeriesList.TimeSeriesCumulativeList;
import io.opencensus.metrics.TimeSeriesList.TimeSeriesGaugeList;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.hamcrest.CoreMatchers;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Unit tests for {@link TimeSeries}. */
@RunWith(JUnit4.class)
public class TimeSeriesListTest {
@Rule public ExpectedException thrown = ExpectedException.none();
private static final LabelValue LABEL_VALUE_1 = LabelValue.create("value1");
private static final LabelValue LABEL_VALUE_2 = LabelValue.create("value2");
private static final LabelValue LABEL_VALUE_EMPTY = LabelValue.create("");
private static final Value VALUE_LONG = Value.longValue(12345678);
private static final Value VALUE_DOUBLE = Value.doubleValue(-345.77);
private static final Timestamp TIMESTAMP_1 = Timestamp.fromMillis(1000);
private static final Timestamp TIMESTAMP_2 = Timestamp.fromMillis(2000);
private static final Timestamp TIMESTAMP_3 = Timestamp.fromMillis(3000);
private static final Point POINT_1 = Point.create(VALUE_DOUBLE, TIMESTAMP_2);
private static final Point POINT_2 = Point.create(VALUE_LONG, TIMESTAMP_3);
private static final TimeSeriesGauge TIME_SERIES_GAUGE =
TimeSeriesGauge.create(
Arrays.asList(LABEL_VALUE_1, LABEL_VALUE_2), Arrays.asList(POINT_1, POINT_2));
private static final TimeSeriesCumulative TIME_SERIES_CUMULATIVE =
TimeSeriesCumulative.create(
Arrays.asList(LABEL_VALUE_1, LABEL_VALUE_EMPTY), Arrays.asList(POINT_1), TIMESTAMP_1);
@Test
public void testGet_TimeSeriesGaugeList() {
TimeSeriesGaugeList gaugeTimeSeriesList =
TimeSeriesGaugeList.create(Collections.singletonList(TIME_SERIES_GAUGE));
assertThat(gaugeTimeSeriesList.getList()).containsExactly(TIME_SERIES_GAUGE);
}
@Test
public void testGet_TimeSeriesCumulativeList() {
TimeSeriesCumulativeList cumulativeTimeSeriesList =
TimeSeriesCumulativeList.create(Collections.singletonList(TIME_SERIES_CUMULATIVE));
assertThat(cumulativeTimeSeriesList.getList()).containsExactly(TIME_SERIES_CUMULATIVE);
}
@Test
public void createGaugeList_WithNullList() {
thrown.expect(NullPointerException.class);
thrown.expectMessage(CoreMatchers.equalTo("list"));
TimeSeriesGaugeList.create(null);
}
@Test
public void createGaugeList_WithNullTimeSeries() {
thrown.expect(NullPointerException.class);
thrown.expectMessage(CoreMatchers.equalTo("timeSeriesGauge"));
TimeSeriesGaugeList.create(Arrays.asList(TIME_SERIES_GAUGE, null));
}
@Test
public void createCumulativeList_WithNullList() {
thrown.expect(NullPointerException.class);
thrown.expectMessage(CoreMatchers.equalTo("list"));
TimeSeriesCumulativeList.create(null);
}
@Test
public void createCumulativeList_WithNullTimeSeries() {
thrown.expect(NullPointerException.class);
thrown.expectMessage(CoreMatchers.equalTo("timeSeriesCumulative"));
TimeSeriesCumulativeList.create(Arrays.asList(TIME_SERIES_CUMULATIVE, null));
}
@Test
public void testEquals() {
new EqualsTester()
.addEqualityGroup(
TimeSeriesGaugeList.create(Collections.singletonList(TIME_SERIES_GAUGE)),
TimeSeriesGaugeList.create(Collections.singletonList(TIME_SERIES_GAUGE)))
.addEqualityGroup(
TimeSeriesCumulativeList.create(Collections.singletonList(TIME_SERIES_CUMULATIVE)),
TimeSeriesCumulativeList.create(Collections.singletonList(TIME_SERIES_CUMULATIVE)))
.addEqualityGroup(TimeSeriesGaugeList.create(Collections.<TimeSeriesGauge>emptyList()))
.addEqualityGroup(
TimeSeriesCumulativeList.create(Collections.<TimeSeriesCumulative>emptyList()))
.testEquals();
}
@Test
public void testMatch() {
TimeSeriesList gaugeTimeSeriesList =
TimeSeriesGaugeList.create(Collections.singletonList(TIME_SERIES_GAUGE));
TimeSeriesList cumulativeTimeSeriesList =
TimeSeriesCumulativeList.create(Collections.singletonList(TIME_SERIES_CUMULATIVE));
final List<String> actual = new ArrayList<String>();
for (TimeSeriesList timeSeriesList :
Arrays.asList(cumulativeTimeSeriesList, gaugeTimeSeriesList)) {
actual.add(
timeSeriesList.match(
Functions.returnConstant("TimeSeriesGaugeList"),
Functions.returnConstant("TimeSeriesCumulativeList"),
Functions.<String>throwAssertionError()));
}
assertThat(actual).containsExactly("TimeSeriesCumulativeList", "TimeSeriesGaugeList").inOrder();
}
}
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