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StackdriverStatsConfigurationTest.java
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StackdriverStatsConfigurationTest.java
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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.exporter.stats.stackdriver;
import static com.google.common.truth.Truth.assertThat;
import static io.opencensus.exporter.stats.stackdriver.StackdriverExportUtils.DEFAULT_CONSTANT_LABELS;
import static io.opencensus.exporter.stats.stackdriver.StackdriverStatsConfiguration.DEFAULT_DEADLINE;
import static io.opencensus.exporter.stats.stackdriver.StackdriverStatsConfiguration.DEFAULT_INTERVAL;
import com.google.api.MonitoredResource;
import com.google.auth.Credentials;
import com.google.auth.oauth2.AccessToken;
import com.google.auth.oauth2.GoogleCredentials;
import com.google.cloud.ServiceOptions;
import com.google.cloud.monitoring.v3.stub.MetricServiceStub;
import io.opencensus.common.Duration;
import io.opencensus.metrics.LabelKey;
import io.opencensus.metrics.LabelValue;
import java.util.Collections;
import java.util.Date;
import java.util.Map;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import org.mockito.Mock;
import org.mockito.Mockito;
/** Unit tests for {@link StackdriverStatsConfiguration}. */
@RunWith(JUnit4.class)
public class StackdriverStatsConfigurationTest {
private static final Credentials FAKE_CREDENTIALS =
GoogleCredentials.newBuilder().setAccessToken(new AccessToken("fake", new Date(100))).build();
private static final String PROJECT_ID = "project";
private static final Duration DURATION = Duration.create(60, 0);
private static final Duration NEG_ONE_MINUTE = Duration.create(-60, 0);
private static final MonitoredResource RESOURCE =
MonitoredResource.newBuilder()
.setType("gce-instance")
.putLabels("instance-id", "instance")
.build();
private static final String CUSTOM_PREFIX = "myorg";
private static final String CUSTOM_DISPLAY_PREFIX = "display-prefix";
@Mock private final MetricServiceStub mockStub = Mockito.mock(MetricServiceStub.class);
@Rule public final ExpectedException thrown = ExpectedException.none();
@Test
public void testConstants() {
assertThat(DEFAULT_INTERVAL).isEqualTo(Duration.create(60, 0));
}
@Test
public void testBuild() {
StackdriverStatsConfiguration configuration =
StackdriverStatsConfiguration.builder()
.setCredentials(FAKE_CREDENTIALS)
.setProjectId(PROJECT_ID)
.setExportInterval(DURATION)
.setMonitoredResource(RESOURCE)
.setMetricNamePrefix(CUSTOM_PREFIX)
.setDisplayNamePrefix(CUSTOM_DISPLAY_PREFIX)
.setConstantLabels(Collections.<LabelKey, LabelValue>emptyMap())
.setDeadline(DURATION)
.setMetricServiceStub(mockStub)
.build();
assertThat(configuration.getCredentials()).isEqualTo(FAKE_CREDENTIALS);
assertThat(configuration.getProjectId()).isEqualTo(PROJECT_ID);
assertThat(configuration.getExportInterval()).isEqualTo(DURATION);
assertThat(configuration.getMonitoredResource()).isEqualTo(RESOURCE);
assertThat(configuration.getMetricNamePrefix()).isEqualTo(CUSTOM_PREFIX);
assertThat(configuration.getDisplayNamePrefix()).isEqualTo(CUSTOM_DISPLAY_PREFIX);
assertThat(configuration.getConstantLabels()).isEmpty();
assertThat(configuration.getDeadline()).isEqualTo(DURATION);
assertThat(configuration.getMetricServiceStub()).isEqualTo(mockStub);
}
@Test
public void testBuild_Default() {
StackdriverStatsConfiguration configuration;
try {
configuration = StackdriverStatsConfiguration.builder().build();
} catch (Exception e) {
// Some test hosts may not have cloud project ID set up.
configuration = StackdriverStatsConfiguration.builder().setProjectId("test").build();
}
assertThat(configuration.getCredentials()).isNull();
assertThat(configuration.getProjectId()).isNotNull();
assertThat(configuration.getExportInterval()).isEqualTo(DEFAULT_INTERVAL);
assertThat(configuration.getMonitoredResource()).isNotNull();
assertThat(configuration.getMetricNamePrefix()).isNull();
assertThat(configuration.getConstantLabels()).isEqualTo(DEFAULT_CONSTANT_LABELS);
assertThat(configuration.getDeadline()).isEqualTo(DEFAULT_DEADLINE);
assertThat(configuration.getMetricServiceStub()).isNull();
}
@Test
public void disallowNullProjectId() {
StackdriverStatsConfiguration.Builder builder = StackdriverStatsConfiguration.builder();
thrown.expect(NullPointerException.class);
builder.setProjectId(null);
}
@Test
public void disallowEmptyProjectId() {
StackdriverStatsConfiguration.Builder builder = StackdriverStatsConfiguration.builder();
builder.setProjectId("");
thrown.expect(IllegalArgumentException.class);
builder.build();
}
@Test
public void allowToUseDefaultProjectId() {
String defaultProjectId = ServiceOptions.getDefaultProjectId();
if (defaultProjectId != null) {
StackdriverStatsConfiguration configuration = StackdriverStatsConfiguration.builder().build();
assertThat(configuration.getProjectId()).isEqualTo(defaultProjectId);
}
}
@Test
public void disallowNullResource() {
StackdriverStatsConfiguration.Builder builder =
StackdriverStatsConfiguration.builder().setProjectId(PROJECT_ID);
thrown.expect(NullPointerException.class);
builder.setMonitoredResource(null);
}
@Test
public void disallowNullExportInterval() {
StackdriverStatsConfiguration.Builder builder =
StackdriverStatsConfiguration.builder().setProjectId(PROJECT_ID);
thrown.expect(NullPointerException.class);
builder.setExportInterval(null);
}
@Test
public void disallowNullConstantLabels() {
StackdriverStatsConfiguration.Builder builder =
StackdriverStatsConfiguration.builder().setProjectId(PROJECT_ID);
thrown.expect(NullPointerException.class);
builder.setConstantLabels(null);
}
@Test
public void disallowNullConstantLabelKey() {
StackdriverStatsConfiguration.Builder builder =
StackdriverStatsConfiguration.builder().setProjectId(PROJECT_ID);
Map<LabelKey, LabelValue> labels = Collections.singletonMap(null, LabelValue.create("val"));
builder.setConstantLabels(labels);
thrown.expect(NullPointerException.class);
builder.build();
}
@Test
public void disallowNullConstantLabelValue() {
StackdriverStatsConfiguration.Builder builder =
StackdriverStatsConfiguration.builder().setProjectId(PROJECT_ID);
Map<LabelKey, LabelValue> labels =
Collections.singletonMap(LabelKey.create("key", "desc"), null);
builder.setConstantLabels(labels);
thrown.expect(NullPointerException.class);
builder.build();
}
@Test
public void allowNullCredentials() {
StackdriverStatsConfiguration configuration =
StackdriverStatsConfiguration.builder()
.setProjectId(PROJECT_ID)
.setCredentials(null)
.build();
assertThat(configuration.getCredentials()).isNull();
}
@Test
public void allowNullMetricPrefix() {
StackdriverStatsConfiguration configuration =
StackdriverStatsConfiguration.builder()
.setProjectId(PROJECT_ID)
.setMetricNamePrefix(null)
.build();
assertThat(configuration.getMetricNamePrefix()).isNull();
}
@Test
public void allowNullDisplayPrefix() {
StackdriverStatsConfiguration configuration =
StackdriverStatsConfiguration.builder()
.setProjectId(PROJECT_ID)
.setDisplayNamePrefix(null)
.build();
assertThat(configuration.getMetricNamePrefix()).isNull();
}
@Test
public void disallowZeroDuration() {
StackdriverStatsConfiguration.Builder builder =
StackdriverStatsConfiguration.builder().setProjectId("test");
builder.setDeadline(StackdriverStatsConfiguration.Builder.ZERO);
thrown.expect(IllegalArgumentException.class);
builder.build();
}
@Test
public void disallowNegativeDuration() {
StackdriverStatsConfiguration.Builder builder =
StackdriverStatsConfiguration.builder().setProjectId("test");
builder.setDeadline(NEG_ONE_MINUTE);
thrown.expect(IllegalArgumentException.class);
builder.build();
}
}