/*
* Copyright (C) 2014 ZeroTurnaround <support@zeroturnaround.com>
* Contains fragments of code from Apache Commons Exec, rights owned
* by Apache Software Foundation (ASF).
*
* 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.zeroturnaround.exec.test;
import java.io.ByteArrayOutputStream;
import org.junit.Assert;
import org.junit.Test;
import org.zeroturnaround.exec.ProcessExecutor;
/**
* Tests redirecting stream.
*
* @author Rein Raudjärv
*
* @see ProcessExecutor
* @see HelloWorld
*/
public class ProcessExecutorHelloWorldTest {
@Test
public void testReadOutputAndError() throws Exception {
String output = helloWorld().readOutput(true).execute().outputUTF8();
Assert.assertEquals("Hello world!", output);
}
@Test
public void testReadOutputOnly() throws Exception {
String output = helloWorld().readOutput(true).redirectErrorStream(false).execute().outputUTF8();
Assert.assertEquals("Hello ", output);
}
@Test
public void testRedirectOutputAndError() throws Exception {
ByteArrayOutputStream out = new ByteArrayOutputStream();
helloWorld().redirectOutput(out).execute();
Assert.assertEquals("Hello world!", new String(out.toByteArray()));
}
@Test
public void testRedirectOutputAndErrorMerged() throws Exception {
ByteArrayOutputStream out = new ByteArrayOutputStream();
ByteArrayOutputStream err = new ByteArrayOutputStream();
helloWorld().redirectOutput(out).redirectError(err).execute();
Assert.assertEquals("Hello ", new String(out.toByteArray()));
Assert.assertEquals("world!", new String(err.toByteArray()));
}
@Test
public void testRedirectOutputAndErrorAndReadOutput() throws Exception {
ByteArrayOutputStream out = new ByteArrayOutputStream();
String output = helloWorld().redirectOutput(out).readOutput(true).execute().outputUTF8();
Assert.assertEquals("Hello world!", output);
Assert.assertEquals("Hello world!", new String(out.toByteArray()));
}
@Test
public void testRedirectOutputOnly() throws Exception {
ByteArrayOutputStream out = new ByteArrayOutputStream();
helloWorld().redirectOutput(out).redirectErrorStream(false).execute();
Assert.assertEquals("Hello ", new String(out.toByteArray()));
}
@Test
public void testRedirectOutputOnlyAndReadOutput() throws Exception {
ByteArrayOutputStream out = new ByteArrayOutputStream();
String output = helloWorld().redirectOutput(out).redirectErrorStream(false).readOutput(true).execute().outputUTF8();
Assert.assertEquals("Hello ", output);
Assert.assertEquals("Hello ", new String(out.toByteArray()));
}
@Test
public void testRedirectErrorOnly() throws Exception {
ByteArrayOutputStream err = new ByteArrayOutputStream();
helloWorld().redirectError(err).redirectErrorStream(false).execute();
Assert.assertEquals("world!", new String(err.toByteArray()));
}
@Test
public void testRedirectErrorOnlyAndReadOutput() throws Exception {
ByteArrayOutputStream err = new ByteArrayOutputStream();
String output = helloWorld().redirectError(err).redirectErrorStream(false).readOutput(true).execute().outputUTF8();
Assert.assertEquals("Hello ", output);
Assert.assertEquals("world!", new String(err.toByteArray()));
}
@Test
public void testRedirectOutputAndErrorSeparate() throws Exception {
ByteArrayOutputStream out = new ByteArrayOutputStream();
ByteArrayOutputStream err = new ByteArrayOutputStream();
helloWorld().redirectOutput(out).redirectError(err).redirectErrorStream(false).execute();
Assert.assertEquals("Hello ", new String(out.toByteArray()));
Assert.assertEquals("world!", new String(err.toByteArray()));
}
@Test
public void testRedirectOutputAndErrorSeparateAndReadOutput() throws Exception {
ByteArrayOutputStream out = new ByteArrayOutputStream();
ByteArrayOutputStream err = new ByteArrayOutputStream();
String output = helloWorld().redirectOutput(out).redirectError(err).redirectErrorStream(false).readOutput(true).execute().outputUTF8();
Assert.assertEquals("Hello ", output);
Assert.assertEquals("Hello ", new String(out.toByteArray()));
Assert.assertEquals("world!", new String(err.toByteArray()));
}
private ProcessExecutor helloWorld() {
return new ProcessExecutor("java", "-cp", "target/test-classes", HelloWorld.class.getName());
}
}