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Diffstat (limited to 'impl_core/src/test/java/io/opencensus/implcore/metrics/DerivedDoubleGaugeImplTest.java')
-rw-r--r-- | impl_core/src/test/java/io/opencensus/implcore/metrics/DerivedDoubleGaugeImplTest.java | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/impl_core/src/test/java/io/opencensus/implcore/metrics/DerivedDoubleGaugeImplTest.java b/impl_core/src/test/java/io/opencensus/implcore/metrics/DerivedDoubleGaugeImplTest.java new file mode 100644 index 00000000..e69a284f --- /dev/null +++ b/impl_core/src/test/java/io/opencensus/implcore/metrics/DerivedDoubleGaugeImplTest.java @@ -0,0 +1,221 @@ +/* + * 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.implcore.metrics; + +import static com.google.common.truth.Truth.assertThat; + +import io.opencensus.common.Timestamp; +import io.opencensus.common.ToDoubleFunction; +import io.opencensus.metrics.LabelKey; +import io.opencensus.metrics.LabelValue; +import io.opencensus.metrics.export.Metric; +import io.opencensus.metrics.export.MetricDescriptor; +import io.opencensus.metrics.export.MetricDescriptor.Type; +import io.opencensus.metrics.export.Point; +import io.opencensus.metrics.export.TimeSeries; +import io.opencensus.metrics.export.Value; +import io.opencensus.testing.common.TestClock; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Collections; +import java.util.List; +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 DerivedDoubleGaugeImpl}. */ +@RunWith(JUnit4.class) +public class DerivedDoubleGaugeImplTest { + @Rule public ExpectedException thrown = ExpectedException.none(); + + private static final String METRIC_NAME = "name"; + private static final String METRIC_DESCRIPTION = "description"; + private static final String METRIC_UNIT = "1"; + private static final List<LabelKey> LABEL_KEY = + Collections.singletonList(LabelKey.create("key", "key description")); + private static final List<LabelValue> LABEL_VALUES = + Collections.singletonList(LabelValue.create("value")); + private static final List<LabelValue> LABEL_VALUES_1 = + Collections.singletonList(LabelValue.create("value1")); + private static final Timestamp TEST_TIME = Timestamp.create(1234, 123); + private final TestClock testClock = TestClock.create(TEST_TIME); + private static final MetricDescriptor METRIC_DESCRIPTOR = + MetricDescriptor.create( + METRIC_NAME, METRIC_DESCRIPTION, METRIC_UNIT, Type.GAUGE_DOUBLE, LABEL_KEY); + + private final DerivedDoubleGaugeImpl derivedDoubleGauge = + new DerivedDoubleGaugeImpl(METRIC_NAME, METRIC_DESCRIPTION, METRIC_UNIT, LABEL_KEY); + + // helper class + public static class QueueManager { + public double size() { + return 2.5; + } + } + + private static final ToDoubleFunction<Object> doubleFunction = + new ToDoubleFunction<Object>() { + @Override + public double applyAsDouble(Object value) { + return 5.5; + } + }; + private static final ToDoubleFunction<Object> negativeDoubleFunction = + new ToDoubleFunction<Object>() { + @Override + public double applyAsDouble(Object value) { + return -200.5; + } + }; + private static final ToDoubleFunction<QueueManager> queueManagerFunction = + new ToDoubleFunction<QueueManager>() { + @Override + public double applyAsDouble(QueueManager queue) { + return queue.size(); + } + }; + + @Test + public void createTimeSeries_WithNullLabelValues() { + thrown.expect(NullPointerException.class); + thrown.expectMessage("labelValues"); + derivedDoubleGauge.createTimeSeries(null, null, doubleFunction); + } + + @Test + public void createTimeSeries_WithNullElement() { + List<LabelKey> labelKeys = + Arrays.asList(LabelKey.create("key1", "desc"), LabelKey.create("key2", "desc")); + List<LabelValue> labelValues = Arrays.asList(LabelValue.create("value1"), null); + DerivedDoubleGaugeImpl derivedDoubleGauge = + new DerivedDoubleGaugeImpl(METRIC_NAME, METRIC_DESCRIPTION, METRIC_UNIT, labelKeys); + thrown.expect(NullPointerException.class); + thrown.expectMessage("labelValue element should not be null."); + derivedDoubleGauge.createTimeSeries(labelValues, null, doubleFunction); + } + + @Test + public void createTimeSeries_WithInvalidLabelSize() { + List<LabelValue> labelValues = + Arrays.asList(LabelValue.create("value1"), LabelValue.create("value2")); + thrown.expect(IllegalArgumentException.class); + thrown.expectMessage("Incorrect number of labels."); + derivedDoubleGauge.createTimeSeries(labelValues, null, doubleFunction); + } + + @Test + public void createTimeSeries_WithNullFunction() { + thrown.expect(NullPointerException.class); + thrown.expectMessage("function"); + derivedDoubleGauge.createTimeSeries(LABEL_VALUES, null, null); + } + + @Test + public void createTimeSeries_WithObjFunction() { + derivedDoubleGauge.createTimeSeries(LABEL_VALUES, new QueueManager(), queueManagerFunction); + Metric metric = derivedDoubleGauge.getMetric(testClock); + assertThat(metric).isNotNull(); + assertThat(metric) + .isEqualTo( + Metric.createWithOneTimeSeries( + METRIC_DESCRIPTOR, + TimeSeries.createWithOnePoint( + LABEL_VALUES, Point.create(Value.doubleValue(2.5), TEST_TIME), null))); + } + + @Test + public void createTimeSeries_WithSameLabel() { + derivedDoubleGauge.createTimeSeries(LABEL_VALUES, new QueueManager(), queueManagerFunction); + thrown.expect(IllegalArgumentException.class); + thrown.expectMessage("A different time series with the same labels already exists."); + derivedDoubleGauge.createTimeSeries(LABEL_VALUES, null, queueManagerFunction); + } + + @Test + public void addTimeSeries_WithNullObj() { + derivedDoubleGauge.createTimeSeries(LABEL_VALUES, null, negativeDoubleFunction); + Metric metric = derivedDoubleGauge.getMetric(testClock); + assertThat(metric).isNotNull(); + assertThat(metric) + .isEqualTo( + Metric.createWithOneTimeSeries( + METRIC_DESCRIPTOR, + TimeSeries.createWithOnePoint( + LABEL_VALUES, Point.create(Value.doubleValue(-200.5), TEST_TIME), null))); + } + + @Test + public void removeTimeSeries() { + derivedDoubleGauge.createTimeSeries(LABEL_VALUES, null, doubleFunction); + Metric metric = derivedDoubleGauge.getMetric(testClock); + assertThat(metric).isNotNull(); + assertThat(metric.getMetricDescriptor()).isEqualTo(METRIC_DESCRIPTOR); + assertThat(metric.getTimeSeriesList().size()).isEqualTo(1); + derivedDoubleGauge.removeTimeSeries(LABEL_VALUES); + assertThat(derivedDoubleGauge.getMetric(testClock)).isNull(); + } + + @Test + public void removeTimeSeries_WithNullLabelValues() { + thrown.expect(NullPointerException.class); + thrown.expectMessage("labelValues"); + derivedDoubleGauge.removeTimeSeries(null); + } + + @Test + public void multipleMetrics_GetMetric() { + derivedDoubleGauge.createTimeSeries(LABEL_VALUES, null, doubleFunction); + derivedDoubleGauge.createTimeSeries(LABEL_VALUES_1, new QueueManager(), queueManagerFunction); + List<TimeSeries> expectedTimeSeriesList = new ArrayList<TimeSeries>(); + expectedTimeSeriesList.add( + TimeSeries.createWithOnePoint( + LABEL_VALUES, Point.create(Value.doubleValue(5.5), TEST_TIME), null)); + expectedTimeSeriesList.add( + TimeSeries.createWithOnePoint( + LABEL_VALUES_1, Point.create(Value.doubleValue(2.5), TEST_TIME), null)); + Metric metric = derivedDoubleGauge.getMetric(testClock); + assertThat(metric).isNotNull(); + assertThat(metric.getMetricDescriptor()).isEqualTo(METRIC_DESCRIPTOR); + assertThat(metric.getTimeSeriesList().size()).isEqualTo(2); + assertThat(metric.getTimeSeriesList()).containsExactlyElementsIn(expectedTimeSeriesList); + assertThat(metric.getTimeSeriesList().get(0).getLabelValues().size()).isEqualTo(1); + assertThat(metric.getTimeSeriesList().get(0).getLabelValues().get(0)) + .isEqualTo(LabelValue.create("value")); + assertThat(metric.getTimeSeriesList().get(1).getLabelValues().size()).isEqualTo(1); + assertThat(metric.getTimeSeriesList().get(1).getLabelValues().get(0)) + .isEqualTo(LabelValue.create("value1")); + } + + @Test + public void clear() { + derivedDoubleGauge.createTimeSeries(LABEL_VALUES, null, doubleFunction); + derivedDoubleGauge.createTimeSeries(LABEL_VALUES_1, new QueueManager(), queueManagerFunction); + Metric metric = derivedDoubleGauge.getMetric(testClock); + assertThat(metric).isNotNull(); + assertThat(metric.getMetricDescriptor()).isEqualTo(METRIC_DESCRIPTOR); + assertThat(metric.getTimeSeriesList().size()).isEqualTo(2); + derivedDoubleGauge.clear(); + assertThat(derivedDoubleGauge.getMetric(testClock)).isNull(); + } + + @Test + public void empty_GetMetrics() { + assertThat(derivedDoubleGauge.getMetric(testClock)).isNull(); + } +} |