/*
* Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package p;
import java.io.*;
import com.sun.tools.javadoc.Main;
public class OutputRedirect {
public static void main(String[] args) {
PrintStream originalOutput = System.out;
try {
doTest();
} finally {
// restore things
System.setOut(originalOutput);
}
}
static void doTest() {
ByteArrayOutputStream redirectedOutput = new ByteArrayOutputStream();
PrintStream originalOutput = System.out;
// redirect System.out to a buffer
System.setOut(new PrintStream(redirectedOutput));
PrintWriter sink = new PrintWriter(new ByteArrayOutputStream());
// execute javadoc
int result = Main.execute("javadoc", sink, sink, sink,
"com.sun.tools.doclets.standard.Standard",
new String[] {"p"}
);
// test whether javadoc did any output to System.out
if (redirectedOutput.toByteArray().length > 0) {
originalOutput.println("Test failed; here's what javadoc wrote on its standard output:");
originalOutput.println(redirectedOutput.toString());
throw new Error("javadoc output wasn\'t properly redirected");
} else if (result != 0) {
throw new Error("javadoc run failed");
} else {
originalOutput.println("OK, good");
}
}
}