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/*
* Copyright (C) 2007 The Android Open Source Project
*
* 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.apache.harmony.tests.java.lang;
import junit.framework.TestCase;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
public class ProcessManagerTest extends TestCase {
Thread thread = null;
Process process = null;
boolean isThrown = false;
public void testCat() throws IOException, InterruptedException {
String[] commands = { "cat" };
Process process = Runtime.getRuntime().exec(commands, null, null);
OutputStream out = process.getOutputStream();
String greeting = "Hello, World!";
out.write(greeting.getBytes());
out.write('\n');
out.close();
assertEquals(greeting, readLine(process));
}
// BrokenTest: Sporadic failures in CTS, but not in CoreTestRunner
public void testSleep() throws IOException {
String[] commands = { "sleep", "1" };
process = Runtime.getRuntime().exec(commands, null, null);
try {
assertEquals(0, process.waitFor());
} catch(InterruptedException ie) {
fail("InterruptedException was thrown.");
}
isThrown = false;
thread = new Thread() {
public void run() {
String[] commands = { "sleep", "1000"};
try {
process = Runtime.getRuntime().exec(commands, null, null);
} catch (IOException e1) {
fail("IOException was thrown.");
}
try {
process.waitFor();
fail("InterruptedException was not thrown.");
} catch(InterruptedException ie) {
isThrown = true;
}
}
};
Thread interruptThread = new Thread() {
public void run() {
try {
sleep(10);
} catch(InterruptedException ie) {
fail("InterruptedException was thrown in " +
"the interruptThread.");
}
thread.interrupt();
}
};
thread.start();
interruptThread.start();
try {
interruptThread.join();
} catch (InterruptedException e) {
fail("InterruptedException was thrown.");
}
try {
Thread.sleep(100);
} catch(InterruptedException ie) {
}
thread.interrupt();
//process.destroy();
try {
Thread.sleep(100);
} catch(InterruptedException ie) {
}
assertTrue(isThrown);
}
public void testPwd() throws IOException, InterruptedException {
String[] commands = { "sh", "-c", "pwd" };
Process process = Runtime.getRuntime().exec(
commands, null, new File("/"));
logErrors(process);
assertEquals("/", readLine(process));
}
public void testEnvironment() throws IOException, InterruptedException {
String[] commands = { "sh", "-c", "echo $FOO" };
// Remember to set the path so we can find sh.
String[] environment = { "FOO=foo", "PATH=" + System.getenv("PATH") };
Process process = Runtime.getRuntime().exec(
commands, environment, null);
logErrors(process);
assertEquals("foo", readLine(process));
}
String readLine(Process process) throws IOException {
InputStream in = process.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
return reader.readLine();
}
void logErrors(final Process process) throws IOException {
Thread thread = new Thread() {
public void run() {
InputStream in = process.getErrorStream();
BufferedReader reader
= new BufferedReader(new InputStreamReader(in));
String line;
try {
while ((line = reader.readLine()) != null) {
System.err.println(line);
}
} catch (IOException e) {
e.printStackTrace();
}
}
};
thread.setDaemon(true);
thread.start();
}
public void testHeavyLoad() {
int i;
for (i = 0; i < 100; i++)
stuff();
}
private static void stuff() {
Runtime rt = Runtime.getRuntime();
try {
Process proc = rt.exec("ls");
proc.waitFor();
proc = null;
} catch (Exception ex) {
System.err.println("Failure: " + ex);
throw new RuntimeException(ex);
}
rt.gc();
rt = null;
}
InputStream in;
public void testCloseNonStandardFds()
throws IOException, InterruptedException {
String[] commands = { "ls", "/proc/self/fd" };
Process process = Runtime.getRuntime().exec(commands, null, null);
int before = countLines(process);
// Open a new fd.
this.in = new FileInputStream("/proc/version");
try {
process = Runtime.getRuntime().exec(commands, null, null);
int after = countLines(process);
// Assert that the new fd wasn't open in the second run.
assertEquals(before, after);
} finally {
this.in = null;
}
}
/**
* Counts lines of input from the given process. Equivalent to "wc -l".
*/
private int countLines(Process process) throws IOException {
logErrors(process);
InputStream in = process.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
int count = 0;
while (reader.readLine() != null) {
count++;
}
return count;
}
public void testInvalidCommand()
throws IOException, InterruptedException {
try {
String[] commands = { "doesnotexist" };
Runtime.getRuntime().exec(commands, null, null);
} catch (IOException e) { /* expected */ }
}
}
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