| /* |
| * 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 LongGauge}. */ |
| @RunWith(JUnit4.class) |
| public class LongGaugeTest { |
| @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 LongGauge plugs-in into the registry. |
| |
| @Test |
| public void noopGetOrCreateTimeSeries_WithNullLabelValues() { |
| LongGauge longGauge = LongGauge.newNoopLongGauge(NAME, DESCRIPTION, UNIT, EMPTY_LABEL_KEYS); |
| thrown.expect(NullPointerException.class); |
| thrown.expectMessage("labelValues"); |
| longGauge.getOrCreateTimeSeries(null); |
| } |
| |
| @Test |
| public void noopGetOrCreateTimeSeries_WithNullElement() { |
| List<LabelValue> labelValues = Collections.singletonList(null); |
| LongGauge longGauge = LongGauge.newNoopLongGauge(NAME, DESCRIPTION, UNIT, LABEL_KEY); |
| thrown.expect(NullPointerException.class); |
| thrown.expectMessage("labelValue element should not be null."); |
| longGauge.getOrCreateTimeSeries(labelValues); |
| } |
| |
| @Test |
| public void noopGetOrCreateTimeSeries_WithInvalidLabelSize() { |
| LongGauge longGauge = LongGauge.newNoopLongGauge(NAME, DESCRIPTION, UNIT, LABEL_KEY); |
| thrown.expect(IllegalArgumentException.class); |
| thrown.expectMessage("Incorrect number of labels."); |
| longGauge.getOrCreateTimeSeries(EMPTY_LABEL_VALUES); |
| } |
| |
| @Test |
| public void noopRemoveTimeSeries_WithNullLabelValues() { |
| LongGauge longGauge = LongGauge.newNoopLongGauge(NAME, DESCRIPTION, UNIT, LABEL_KEY); |
| thrown.expect(NullPointerException.class); |
| thrown.expectMessage("labelValues"); |
| longGauge.removeTimeSeries(null); |
| } |
| |
| @Test |
| public void noopSameAs() { |
| LongGauge longGauge = LongGauge.newNoopLongGauge(NAME, DESCRIPTION, UNIT, LABEL_KEY); |
| assertThat(longGauge.getDefaultTimeSeries()).isSameAs(longGauge.getDefaultTimeSeries()); |
| assertThat(longGauge.getDefaultTimeSeries()) |
| .isSameAs(longGauge.getOrCreateTimeSeries(LABEL_VALUES)); |
| } |
| } |