Mercurial > hg > truffle
diff mx/JUnitWrapper.java @ 8406:2bfb9644dcc2
unittest: call wrapper to avoid long command lines
on windows there's a restriction of ~32k characters for
the whole command line.
fwiw, linux/bsd have also restrictions, but it is
unlikely that we'll ever hit that (2097k characters
on my linux machine).
author | Bernhard Urban <bernhard.urban@jku.at> |
---|---|
date | Mon, 18 Mar 2013 19:18:42 +0100 |
parents | |
children | 94d98d334ccd |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mx/JUnitWrapper.java Mon Mar 18 19:18:42 2013 +0100 @@ -0,0 +1,73 @@ +/* + * Copyright (c) 2013, 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. + */ + + +/* Execute testcases by reading names from a given file, due to limits of + * the operating system regarding command line size (windows: 32k, + * linux [depending on the settings]: ~2097k) + * see http://msdn.microsoft.com/en-us/library/ms682425%28VS.85%29.aspx + */ + +import org.junit.runner.*; +import java.io.*; +import java.util.*; + +public class JUnitWrapper { + + /** + * @param args + * args[0] is the path where to read the names of the testclasses. + */ + public static void main(String[] args) { + if (args.length == 0) { + System.err.printf("wrong usage. provide a filename\n"); + System.exit(1); + } + ArrayList<String> tests = new ArrayList<String>(1000); + BufferedReader br = null; + try { + br = new BufferedReader(new FileReader(args[0])); + + String buf; + while ((buf = br.readLine()) != null) { + tests.add(buf); + } + } catch (IOException ioe) { + ioe.printStackTrace(); + System.exit(2); + } finally { + try { + if (br != null) { + br.close(); + } + } catch (IOException ioe) { + ioe.printStackTrace(); + System.exit(3); + } + } + + String[] strargs = tests.toArray(new String[tests.size()]); + System.out.printf("executing junit tests now... (%d testclasses)\n", strargs.length); + JUnitCore.main(strargs); + } +}