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/*
* Copyright 2017, 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.implcore.stats;
import static com.google.common.truth.Truth.assertThat;
import static io.opencensus.implcore.stats.MutableViewData.ZERO_TIMESTAMP;
import static io.opencensus.implcore.stats.StatsTestUtil.createEmptyViewData;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Lists;
import io.grpc.Context;
import io.opencensus.implcore.internal.SimpleEventQueue;
import io.opencensus.stats.Aggregation.Sum;
import io.opencensus.stats.Measure.MeasureDouble;
import io.opencensus.stats.MeasureMap;
import io.opencensus.stats.StatsCollectionState;
import io.opencensus.stats.StatsComponent;
import io.opencensus.stats.StatsRecorder;
import io.opencensus.stats.View;
import io.opencensus.stats.View.AggregationWindow.Cumulative;
import io.opencensus.stats.ViewData;
import io.opencensus.stats.ViewData.AggregationWindowData.CumulativeData;
import io.opencensus.stats.ViewManager;
import io.opencensus.tags.Tag;
import io.opencensus.tags.TagContext;
import io.opencensus.tags.TagKey;
import io.opencensus.tags.TagValue;
import io.opencensus.tags.unsafe.ContextUtils;
import io.opencensus.testing.common.TestClock;
import java.util.Arrays;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Tests for {@link StatsRecorderImpl}. */
@RunWith(JUnit4.class)
public final class StatsRecorderImplTest {
private static final TagKey KEY = TagKey.create("KEY");
private static final TagValue VALUE = TagValue.create("VALUE");
private static final TagValue VALUE_2 = TagValue.create("VALUE_2");
private static final MeasureDouble MEASURE_DOUBLE =
MeasureDouble.create("my measurement", "description", "us");
private static final MeasureDouble MEASURE_DOUBLE_NO_VIEW_1 =
MeasureDouble.create("my measurement no view 1", "description", "us");
private static final MeasureDouble MEASURE_DOUBLE_NO_VIEW_2 =
MeasureDouble.create("my measurement no view 2", "description", "us");
private static final View.Name VIEW_NAME = View.Name.create("my view");
private final StatsComponent statsComponent =
new StatsComponentImplBase(new SimpleEventQueue(), TestClock.create());
private final ViewManager viewManager = statsComponent.getViewManager();
private final StatsRecorder statsRecorder = statsComponent.getStatsRecorder();
@Test
public void record_CurrentContextNotSet() {
View view =
View.create(
VIEW_NAME,
"description",
MEASURE_DOUBLE,
Sum.create(),
Arrays.asList(KEY),
Cumulative.create());
viewManager.registerView(view);
statsRecorder.newMeasureMap().put(MEASURE_DOUBLE, 1.0).record();
ViewData viewData = viewManager.getView(VIEW_NAME);
// record() should have used the default TagContext, so the tag value should be null.
assertThat(viewData.getAggregationMap().keySet())
.containsExactly(Arrays.asList((TagValue) null));
}
@Test
public void record_CurrentContextSet() {
View view =
View.create(
VIEW_NAME,
"description",
MEASURE_DOUBLE,
Sum.create(),
Arrays.asList(KEY),
Cumulative.create());
viewManager.registerView(view);
Context orig =
Context.current()
.withValue(ContextUtils.TAG_CONTEXT_KEY, new SimpleTagContext(Tag.create(KEY, VALUE)))
.attach();
try {
statsRecorder.newMeasureMap().put(MEASURE_DOUBLE, 1.0).record();
} finally {
Context.current().detach(orig);
}
ViewData viewData = viewManager.getView(VIEW_NAME);
// record() should have used the given TagContext.
assertThat(viewData.getAggregationMap().keySet()).containsExactly(Arrays.asList(VALUE));
}
@Test
public void record_UnregisteredMeasure() {
View view =
View.create(
VIEW_NAME,
"description",
MEASURE_DOUBLE,
Sum.create(),
Arrays.asList(KEY),
Cumulative.create());
viewManager.registerView(view);
statsRecorder
.newMeasureMap()
.put(MEASURE_DOUBLE_NO_VIEW_1, 1.0)
.put(MEASURE_DOUBLE, 2.0)
.put(MEASURE_DOUBLE_NO_VIEW_2, 3.0)
.record(new SimpleTagContext(Tag.create(KEY, VALUE)));
ViewData viewData = viewManager.getView(VIEW_NAME);
// There should be one entry.
StatsTestUtil.assertAggregationMapEquals(
viewData.getAggregationMap(),
ImmutableMap.of(
Arrays.asList(VALUE),
StatsTestUtil.createAggregationData(Sum.create(), MEASURE_DOUBLE, 2.0)),
1e-6);
}
@Test
public void recordTwice() {
View view =
View.create(
VIEW_NAME,
"description",
MEASURE_DOUBLE,
Sum.create(),
Arrays.asList(KEY),
Cumulative.create());
viewManager.registerView(view);
MeasureMap statsRecord = statsRecorder.newMeasureMap().put(MEASURE_DOUBLE, 1.0);
statsRecord.record(new SimpleTagContext(Tag.create(KEY, VALUE)));
statsRecord.record(new SimpleTagContext(Tag.create(KEY, VALUE_2)));
ViewData viewData = viewManager.getView(VIEW_NAME);
// There should be two entries.
StatsTestUtil.assertAggregationMapEquals(
viewData.getAggregationMap(),
ImmutableMap.of(
Arrays.asList(VALUE),
StatsTestUtil.createAggregationData(Sum.create(), MEASURE_DOUBLE, 1.0),
Arrays.asList(VALUE_2),
StatsTestUtil.createAggregationData(Sum.create(), MEASURE_DOUBLE, 1.0)),
1e-6);
}
@Test
@SuppressWarnings("deprecation")
public void record_StatsDisabled() {
View view =
View.create(
VIEW_NAME,
"description",
MEASURE_DOUBLE,
Sum.create(),
Arrays.asList(KEY),
Cumulative.create());
viewManager.registerView(view);
statsComponent.setState(StatsCollectionState.DISABLED);
statsRecorder
.newMeasureMap()
.put(MEASURE_DOUBLE, 1.0)
.record(new SimpleTagContext(Tag.create(KEY, VALUE)));
assertThat(viewManager.getView(VIEW_NAME)).isEqualTo(createEmptyViewData(view));
}
@Test
@SuppressWarnings("deprecation")
public void record_StatsReenabled() {
View view =
View.create(
VIEW_NAME,
"description",
MEASURE_DOUBLE,
Sum.create(),
Arrays.asList(KEY),
Cumulative.create());
viewManager.registerView(view);
statsComponent.setState(StatsCollectionState.DISABLED);
statsRecorder
.newMeasureMap()
.put(MEASURE_DOUBLE, 1.0)
.record(new SimpleTagContext(Tag.create(KEY, VALUE)));
assertThat(viewManager.getView(VIEW_NAME)).isEqualTo(createEmptyViewData(view));
statsComponent.setState(StatsCollectionState.ENABLED);
assertThat(viewManager.getView(VIEW_NAME).getAggregationMap()).isEmpty();
assertThat(viewManager.getView(VIEW_NAME).getWindowData())
.isNotEqualTo(CumulativeData.create(ZERO_TIMESTAMP, ZERO_TIMESTAMP));
statsRecorder
.newMeasureMap()
.put(MEASURE_DOUBLE, 4.0)
.record(new SimpleTagContext(Tag.create(KEY, VALUE)));
StatsTestUtil.assertAggregationMapEquals(
viewManager.getView(VIEW_NAME).getAggregationMap(),
ImmutableMap.of(
Arrays.asList(VALUE),
StatsTestUtil.createAggregationData(Sum.create(), MEASURE_DOUBLE, 4.0)),
1e-6);
}
private static final class SimpleTagContext extends TagContext {
private final List<Tag> tags;
SimpleTagContext(Tag... tags) {
this.tags = Collections.unmodifiableList(Lists.newArrayList(tags));
}
@Override
protected Iterator<Tag> getIterator() {
return tags.iterator();
}
}
}
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