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author | Mayur Kale <mayurkale@google.com> | 2018-10-17 22:19:10 -0700 |
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committer | GitHub <noreply@github.com> | 2018-10-17 22:19:10 -0700 |
commit | b98e4b90687833108cb497d0bc61311ff662db7c (patch) | |
tree | 1eb8e8d3136088949708abc4498cc4477811f977 /api/src/test/java/io/opencensus/metrics/DerivedLongGaugeTest.java | |
parent | 30b613fcbf329bf130ae18267b431c4f820bbe28 (diff) | |
download | opencensus-java-b98e4b90687833108cb497d0bc61311ff662db7c.tar.gz |
Add support for DerivedLongGauge (#1497)
* Add support for DerivedLongGauge
* Fix minor issues
* Fix test
* Fix review comments
* Add checker annotation
* fix checker
Diffstat (limited to 'api/src/test/java/io/opencensus/metrics/DerivedLongGaugeTest.java')
-rw-r--r-- | api/src/test/java/io/opencensus/metrics/DerivedLongGaugeTest.java | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/api/src/test/java/io/opencensus/metrics/DerivedLongGaugeTest.java b/api/src/test/java/io/opencensus/metrics/DerivedLongGaugeTest.java new file mode 100644 index 00000000..6a462881 --- /dev/null +++ b/api/src/test/java/io/opencensus/metrics/DerivedLongGaugeTest.java @@ -0,0 +1,89 @@ +/* + * 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 io.opencensus.common.ToLongFunction; +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 DerivedLongGauge}. */ +// TODO(mayurkale): Add more tests, once DerivedLongGauge plugs-in into the registry. +@RunWith(JUnit4.class) +public class DerivedLongGaugeTest { + @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<LabelValue> EMPTY_LABEL_VALUES = new ArrayList<LabelValue>(); + + private final DerivedLongGauge derivedLongGauge = + DerivedLongGauge.newNoopDerivedLongGauge(NAME, DESCRIPTION, UNIT, LABEL_KEY); + private static final ToLongFunction<Object> longFunction = + new ToLongFunction<Object>() { + @Override + public long applyAsLong(Object value) { + return 5; + } + }; + + @Test + public void noopCreateTimeSeries_WithNullLabelValues() { + thrown.expect(NullPointerException.class); + thrown.expectMessage("labelValues"); + derivedLongGauge.createTimeSeries(null, null, longFunction); + } + + @Test + public void noopCreateTimeSeries_WithNullElement() { + List<LabelValue> labelValues = Collections.singletonList(null); + thrown.expect(NullPointerException.class); + thrown.expectMessage("labelValue element should not be null."); + derivedLongGauge.createTimeSeries(labelValues, null, longFunction); + } + + @Test + public void noopCreateTimeSeries_WithInvalidLabelSize() { + thrown.expect(IllegalArgumentException.class); + thrown.expectMessage("Incorrect number of labels."); + derivedLongGauge.createTimeSeries(EMPTY_LABEL_VALUES, null, longFunction); + } + + @Test + public void createTimeSeries_WithNullFunction() { + thrown.expect(NullPointerException.class); + thrown.expectMessage("function"); + derivedLongGauge.createTimeSeries(LABEL_VALUES, null, null); + } + + @Test + public void noopRemoveTimeSeries_WithNullLabelValues() { + thrown.expect(NullPointerException.class); + thrown.expectMessage("labelValues"); + derivedLongGauge.removeTimeSeries(null); + } +} |