83 lines
2.7 KiB
Java
83 lines
2.7 KiB
Java
/*
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* Copyright (c) 2003, 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4940642 8293877
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* @summary Check for -help and -X flags
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*/
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/*
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* Converted from Help.sh, originally written by Martin Buchholz
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*
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* For the last version of the original, Help.sh, see
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* https://git.openjdk.org/jdk/blob/jdk-19%2B36/test/langtools/tools/javac/Paths/Help.sh
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*
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* This class provides rudimentary tests of the javac command-line help.
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*/
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import java.io.PrintWriter;
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import java.io.StringWriter;
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import java.util.spi.ToolProvider;
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public class Help {
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public static void main(String... args) throws Exception {
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new Help().run(args);
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}
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void run(String... args) throws Exception {
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String helpText = javac("-help");
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check(helpText,
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"-X ", "-J", "-classpath ", "-cp ", "-bootclasspath ", "-sourcepath ");
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String xText = javac("-X");
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check(xText, "-Xbootclasspath/p:");
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}
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void check(String text, String... options) throws Exception {
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for (String opt : options) {
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System.err.println("Checking '" + opt + "'");
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if (!text.contains(opt)) {
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text.lines().forEach(System.err::println);
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throw new Exception("Bad help output");
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}
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}
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}
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String javac(String... args) throws Exception {
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var javac = ToolProvider.findFirst("javac")
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.orElseThrow(() -> new Exception("cannot find javac"));
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try (StringWriter sw = new StringWriter();
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PrintWriter pw = new PrintWriter(sw)) {
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int rc = javac.run(pw, pw, args);
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if (rc != 0) {
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throw new Error("unexpected exit from javac: " + rc);
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}
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pw.flush();
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return sw.toString();
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}
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}
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}
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