/*
* 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;
import java.io.File;
import java.io.FileReader;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.rules.TemporaryFolder;
import org.springframework.util.FileCopyUtils;
import static org.assertj.core.api.Assertions.assertThat;
/**
* Tests for {@link ApplicationPid}.
*
* @author Phillip Webb
*/
public class ApplicationPidTests {
@Rule
public ExpectedException thrown = ExpectedException.none();
@Rule
public TemporaryFolder temporaryFolder = new TemporaryFolder();
@Test
public void toStringWithPid() throws Exception {
assertThat(new ApplicationPid("123").toString()).isEqualTo("123");
}
@Test
public void toStringWithoutPid() throws Exception {
assertThat(new ApplicationPid(null).toString()).isEqualTo("???");
}
@Test
public void throwIllegalStateWritingMissingPid() throws Exception {
ApplicationPid pid = new ApplicationPid(null);
this.thrown.expect(IllegalStateException.class);
this.thrown.expectMessage("No PID available");
pid.write(this.temporaryFolder.newFile());
}
@Test
public void writePid() throws Exception {
ApplicationPid pid = new ApplicationPid("123");
File file = this.temporaryFolder.newFile();
pid.write(file);
String actual = FileCopyUtils.copyToString(new FileReader(file));
assertThat(actual).isEqualTo("123");
}
@Test
public void getPidFromJvm() throws Exception {
assertThat(new ApplicationPid().toString()).isNotEmpty();
}
}