package io.dropwizard.metrics;
import org.junit.Test;
import io.dropwizard.metrics.Counter;
import static org.assertj.core.api.Assertions.assertThat;
public class CounterTest {
private final Counter counter = new Counter();
@Test
public void startsAtZero() throws Exception {
assertThat(counter.getCount())
.isZero();
}
@Test
public void incrementsByOne() throws Exception {
counter.inc();
assertThat(counter.getCount())
.isEqualTo(1);
}
@Test
public void incrementsByAnArbitraryDelta() throws Exception {
counter.inc(12);
assertThat(counter.getCount())
.isEqualTo(12);
}
@Test
public void decrementsByOne() throws Exception {
counter.dec();
assertThat(counter.getCount())
.isEqualTo(-1);
}
@Test
public void decrementsByAnArbitraryDelta() throws Exception {
counter.dec(12);
assertThat(counter.getCount())
.isEqualTo(-12);
}
}