//
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 com.cloud.utils;
import java.io.File;
import java.io.IOException;
import javax.naming.ConfigurationException;
import junit.framework.Assert;
import org.apache.commons.io.FileUtils;
import org.apache.commons.lang.SystemUtils;
import org.junit.After;
import org.junit.Assume;
import org.junit.Before;
import org.junit.Test;
public class ProcessUtilTest {
File pidFile;
@Before
public void setup() throws IOException {
pidFile = File.createTempFile("test", ".pid");
}
@After
public void cleanup() {
FileUtils.deleteQuietly(pidFile);
}
@Test
public void pidCheck() throws ConfigurationException, IOException {
Assume.assumeTrue(SystemUtils.IS_OS_LINUX);
FileUtils.writeStringToFile(pidFile, "123456\n");
ProcessUtil.pidCheck(pidFile.getParent(), pidFile.getName());
String pidStr = FileUtils.readFileToString(pidFile);
Assert.assertFalse("pid can not be blank", pidStr.isEmpty());
int pid = Integer.parseInt(pidStr.trim());
int maxPid = Integer.parseInt(FileUtils.readFileToString(new File("/proc/sys/kernel/pid_max")).trim());
Assert.assertTrue(pid <= maxPid);
}
@Test(expected = ConfigurationException.class)
public void pidCheckBadPid() throws ConfigurationException, IOException {
Assume.assumeTrue(SystemUtils.IS_OS_LINUX);
FileUtils.writeStringToFile(pidFile, "intentionally not number");
ProcessUtil.pidCheck(pidFile.getParent(), pidFile.getName());
}
@Test(expected = ConfigurationException.class)
public void pidCheckEmptyPid() throws ConfigurationException, IOException {
Assume.assumeTrue(SystemUtils.IS_OS_LINUX);
FileUtils.writeStringToFile(pidFile, "intentionally not number");
ProcessUtil.pidCheck(pidFile.getParent(), pidFile.getName());
}
}