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author | Mayur Kale <mayurkale@google.com> | 2018-10-15 15:08:51 -0700 |
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committer | GitHub <noreply@github.com> | 2018-10-15 15:08:51 -0700 |
commit | e56a976d242d34b65e224f74d91fbafec83f96ad (patch) | |
tree | fbff5c32548a8e6f588edfa38ca338e9410e8b33 /api/src/test/java/io | |
parent | 418e675ee250299b77370620229bf7d3cd6c6830 (diff) | |
download | opencensus-java-e56a976d242d34b65e224f74d91fbafec83f96ad.tar.gz |
Gauge API : Add DoubleGauge Support (Part2) (#1496)
* Gauge API : Add DoubleGauge Support (Part2)
* Fix review comments
Diffstat (limited to 'api/src/test/java/io')
-rw-r--r-- | api/src/test/java/io/opencensus/metrics/DoubleGaugeTest.java | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/api/src/test/java/io/opencensus/metrics/DoubleGaugeTest.java b/api/src/test/java/io/opencensus/metrics/DoubleGaugeTest.java new file mode 100644 index 00000000..5690bd44 --- /dev/null +++ b/api/src/test/java/io/opencensus/metrics/DoubleGaugeTest.java @@ -0,0 +1,88 @@ +/* + * 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 java.util.ArrayList; +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 DoubleGauge}. */ +@RunWith(JUnit4.class) +public class DoubleGaugeTest { + @Rule public ExpectedException thrown = ExpectedException.none(); + + private static final String NAME = "name"; + private static final String DESCRIPTION = "description"; + private static final String 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<LabelKey> EMPTY_LABEL_KEYS = new ArrayList<LabelKey>(); + private static final List<LabelValue> EMPTY_LABEL_VALUES = new ArrayList<LabelValue>(); + + // TODO(mayurkale): Add more tests, once DoubleGauge plugs-in into the registry. + + @Test + public void noopGetOrCreateTimeSeries_WithNullLabelValues() { + DoubleGauge doubleGauge = + DoubleGauge.newNoopDoubleGauge(NAME, DESCRIPTION, UNIT, EMPTY_LABEL_KEYS); + thrown.expect(NullPointerException.class); + thrown.expectMessage("labelValues should not be null."); + doubleGauge.getOrCreateTimeSeries(null); + } + + @Test + public void noopGetOrCreateTimeSeries_WithNullElement() { + List<LabelValue> labelValues = Collections.singletonList(null); + DoubleGauge doubleGauge = DoubleGauge.newNoopDoubleGauge(NAME, DESCRIPTION, UNIT, LABEL_KEY); + thrown.expect(NullPointerException.class); + thrown.expectMessage("labelValues element should not be null."); + doubleGauge.getOrCreateTimeSeries(labelValues); + } + + @Test + public void noopGetOrCreateTimeSeries_WithInvalidLabelSize() { + DoubleGauge doubleGauge = DoubleGauge.newNoopDoubleGauge(NAME, DESCRIPTION, UNIT, LABEL_KEY); + thrown.expect(IllegalArgumentException.class); + thrown.expectMessage("Incorrect number of labels."); + doubleGauge.getOrCreateTimeSeries(EMPTY_LABEL_VALUES); + } + + @Test + public void noopRemoveTimeSeries_WithNullLabelValues() { + DoubleGauge doubleGauge = DoubleGauge.newNoopDoubleGauge(NAME, DESCRIPTION, UNIT, LABEL_KEY); + thrown.expect(NullPointerException.class); + thrown.expectMessage("labelValues should not be null."); + doubleGauge.removeTimeSeries(null); + } + + @Test + public void noopSameAs() { + DoubleGauge doubleGauge = DoubleGauge.newNoopDoubleGauge(NAME, DESCRIPTION, UNIT, LABEL_KEY); + assertThat(doubleGauge.getDefaultTimeSeries()).isSameAs(doubleGauge.getDefaultTimeSeries()); + assertThat(doubleGauge.getDefaultTimeSeries()) + .isSameAs(doubleGauge.getOrCreateTimeSeries(LABEL_VALUES)); + } +} |