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// Copyright (C) 2018 The Android Open Source Project
//
// 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 com.google.gerrit.metrics.dropwizard;
import static com.google.common.truth.Truth.assertThat;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import com.codahale.metrics.MetricRegistry;
import com.google.gerrit.metrics.Description;
import com.google.gerrit.metrics.MetricsReservoirConfig;
import com.google.gerrit.metrics.ReservoirType;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.junit.MockitoJUnitRunner;
@RunWith(MockitoJUnitRunner.class)
public class DropWizardMetricMakerTest {
@Mock MetricsReservoirConfig reservoirConfigMock;
MetricRegistry registry;
DropWizardMetricMaker metrics;
@Before
public void setupMocks() {
registry = new MetricRegistry();
metrics = new DropWizardMetricMaker(registry, reservoirConfigMock);
}
@Test
public void shouldNotSanitizeSafeName() throws Exception {
assertThat(metrics.sanitizeMetricName("metric/submetric1/submetric2/submetric3"))
.isEqualTo("metric/submetric1/submetric2/submetric3");
}
@Test
public void shouldNotCreateSimpleCollisions() throws Exception {
String sanitizedCase1 = metrics.sanitizeMetricName("foo_bar");
String sanitizedCase2 = metrics.sanitizeMetricName("foo+bar");
assertThat(sanitizedCase1).isNotEqualTo(sanitizedCase2);
}
@Test
public void shouldDoubleTheReplacementPrefix() throws Exception {
assertThat(metrics.sanitizeMetricName("foo_0x_bar")).isEqualTo("foo_0x_0x_bar");
}
@Test
public void shouldSanitizeUnwantedChars() throws Exception {
assertThat(metrics.sanitizeMetricName("very+confusing$long#metric@net/name^1"))
.isEqualTo("very_0x2B_confusing_0x24_long_0x23_metric_0x40_net/name_0x5E_1");
assertThat(metrics.sanitizeMetricName("/metric/submetric")).isEqualTo("_metric/submetric");
}
@Test
public void shouldReduceConsecutiveSlashesToOne() throws Exception {
assertThat(metrics.sanitizeMetricName("/metric///submetric1///submetric2/submetric3"))
.isEqualTo("_metric/submetric1/submetric2/submetric3");
}
@Test
public void shouldNotFinishWithSlash() throws Exception {
assertThat(metrics.sanitizeMetricName("metric/")).isEqualTo("metric");
assertThat(metrics.sanitizeMetricName("metric//")).isEqualTo("metric");
assertThat(metrics.sanitizeMetricName("metric/submetric/")).isEqualTo("metric/submetric");
}
@Test
public void shouldRequestForReservoirForNewTimer() throws Exception {
when(reservoirConfigMock.reservoirType()).thenReturn(ReservoirType.ExponentiallyDecaying);
@SuppressWarnings("unused")
var unused =
metrics.newTimer(
"foo",
new Description("foo description")
.setCumulative()
.setUnit(Description.Units.MILLISECONDS));
verify(reservoirConfigMock).reservoirType();
}
}