/*
* Copyright 2012-2016 the original author or 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 org.springframework.boot.actuate.metrics.writer;
import org.junit.Before;
import org.junit.Test;
import org.mockito.ArgumentCaptor;
import org.mockito.Captor;
import org.mockito.MockitoAnnotations;
import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
/**
* Tests for {@link DefaultCounterService}.
*
* @author Dave Syer
*/
public class DefaultCounterServiceTests {
private final MetricWriter repository = mock(MetricWriter.class);
private final DefaultCounterService service = new DefaultCounterService(
this.repository);
@Captor
private ArgumentCaptor<Delta<Number>> captor;
@Before
public void setup() {
MockitoAnnotations.initMocks(this);
}
@Test
public void incrementWithExistingCounter() {
this.service.increment("counter.foo");
verify(this.repository).increment(this.captor.capture());
assertThat(this.captor.getValue().getName()).isEqualTo("counter.foo");
assertThat(this.captor.getValue().getValue()).isEqualTo(1L);
}
@Test
public void incrementWithExistingNearCounter() {
this.service.increment("counter-foo");
verify(this.repository).increment(this.captor.capture());
assertThat(this.captor.getValue().getName()).isEqualTo("counter.counter-foo");
assertThat(this.captor.getValue().getValue()).isEqualTo(1L);
}
@Test
public void incrementPrependsCounter() {
this.service.increment("foo");
verify(this.repository).increment(this.captor.capture());
assertThat(this.captor.getValue().getName()).isEqualTo("counter.foo");
assertThat(this.captor.getValue().getValue()).isEqualTo(1L);
}
@Test
public void decrementPrependsCounter() {
this.service.decrement("foo");
verify(this.repository).increment(this.captor.capture());
assertThat(this.captor.getValue().getName()).isEqualTo("counter.foo");
assertThat(this.captor.getValue().getValue()).isEqualTo(-1L);
}
@Test
public void resetResetsCounter() throws Exception {
this.service.reset("foo");
verify(this.repository).reset("counter.foo");
}
}