/*
* 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.devtools.restart;
import java.util.List;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.context.event.ApplicationFailedEvent;
import org.springframework.boot.context.event.ApplicationPreparedEvent;
import org.springframework.boot.context.event.ApplicationReadyEvent;
import org.springframework.boot.context.event.ApplicationStartingEvent;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.core.Ordered;
import org.springframework.test.util.ReflectionTestUtils;
import static org.assertj.core.api.Assertions.assertThat;
import static org.hamcrest.Matchers.nullValue;
import static org.mockito.Mockito.mock;
/**
* Tests for {@link RestartApplicationListener}.
*
* @author Phillip Webb
* @author Andy Wilkinson
*/
public class RestartApplicationListenerTests {
private static final String ENABLED_PROPERTY = "spring.devtools.restart.enabled";
private static final String[] ARGS = new String[] { "a", "b", "c" };
@Before
@After
public void cleanup() {
Restarter.clearInstance();
System.clearProperty(ENABLED_PROPERTY);
}
@Test
public void isHighestPriority() throws Exception {
assertThat(new RestartApplicationListener().getOrder())
.isEqualTo(Ordered.HIGHEST_PRECEDENCE);
}
@Test
public void initializeWithReady() throws Exception {
testInitialize(false);
assertThat(ReflectionTestUtils.getField(Restarter.getInstance(), "args"))
.isEqualTo(ARGS);
assertThat(Restarter.getInstance().isFinished()).isTrue();
assertThat((List<?>) ReflectionTestUtils.getField(Restarter.getInstance(),
"rootContexts")).isNotEmpty();
}
@Test
public void initializeWithFail() throws Exception {
testInitialize(true);
assertThat(ReflectionTestUtils.getField(Restarter.getInstance(), "args"))
.isEqualTo(ARGS);
assertThat(Restarter.getInstance().isFinished()).isTrue();
assertThat((List<?>) ReflectionTestUtils.getField(Restarter.getInstance(),
"rootContexts")).isEmpty();
}
@Test
public void disableWithSystemProperty() throws Exception {
System.setProperty(ENABLED_PROPERTY, "false");
testInitialize(false);
assertThat(ReflectionTestUtils.getField(Restarter.getInstance(), "enabled"))
.isEqualTo(false);
}
private void testInitialize(boolean failed) {
Restarter.clearInstance();
RestartApplicationListener listener = new RestartApplicationListener();
SpringApplication application = new SpringApplication();
ConfigurableApplicationContext context = mock(
ConfigurableApplicationContext.class);
listener.onApplicationEvent(new ApplicationStartingEvent(application, ARGS));
assertThat(Restarter.getInstance()).isNotEqualTo(nullValue());
assertThat(Restarter.getInstance().isFinished()).isFalse();
listener.onApplicationEvent(
new ApplicationPreparedEvent(application, ARGS, context));
if (failed) {
listener.onApplicationEvent(new ApplicationFailedEvent(application, ARGS,
context, new RuntimeException()));
}
else {
listener.onApplicationEvent(
new ApplicationReadyEvent(application, ARGS, context));
}
}
}