/*
* Copyright 2013-2015 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.cloud.netflix.zuul.metrics;
import java.util.HashMap;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.actuate.metrics.CounterService;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.web.ServerProperties;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.cloud.netflix.zuul.EnableZuulServer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.context.junit4.SpringRunner;
import com.netflix.zuul.exception.ZuulException;
import com.netflix.zuul.monitoring.CounterFactory;
import com.netflix.zuul.monitoring.TracerFactory;
import org.junit.Test;
import org.junit.runner.RunWith;
import static org.junit.Assert.assertEquals;
@RunWith(SpringRunner.class)
@SpringBootTest(classes = {
ZuulMetricsApplicationTests.ZuulMetricsApplicationTestsConfiguration.class,
ZuulMetricsApplicationTests.ZuulConfig.class }, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
@DirtiesContext
public class ZuulMetricsApplicationTests {
private static final Map<String, Long> counters = new HashMap<>();
@Autowired
CounterFactory counterFactory;
@Autowired
TracerFactory tracerFactory;
@Test
public void shouldSetupDefaultCounterFactoryIfCounterServiceIsPresent()
throws Exception {
assertEquals(DefaultCounterFactory.class, counterFactory.getClass());
}
@Test
public void shouldSetupEmptyTracerFactory() throws Exception {
assertEquals(EmptyTracerFactory.class, tracerFactory.getClass());
}
@Test
public void shouldIncrementCounters() throws Exception {
new ZuulException("any", 500, "cause");
new ZuulException("any", 500, "cause");
assertEquals((long) counters.get("ZUUL::EXCEPTION:cause:500"), 2L);
new ZuulException("any", 404, "cause2");
new ZuulException("any", 404, "cause2");
new ZuulException("any", 404, "cause2");
assertEquals((long) counters.get("ZUUL::EXCEPTION:cause2:404"), 3L);
}
// Don't use @SpringBootApplication because we don't want to component scan
@Configuration
@EnableAutoConfiguration
@EnableZuulServer
static class ZuulConfig {
}
@Configuration
static class ZuulMetricsApplicationTestsConfiguration {
@Bean
public ServerProperties serverProperties() {
return new ServerProperties();
}
@Bean
public CounterService counterService() {
return new CounterService() {
// not thread safe, but we are ok with it in tests
@Override
public void increment(String metricName) {
Long counter = counters.get(metricName);
if (counter == null) {
counter = 0L;
}
counters.put(metricName, ++counter);
}
@Override
public void decrement(String metricName) {
}
@Override
public void reset(String metricName) {
}
};
}
}
}