jdk

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/*
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 * Copyright (c) 2017, 2018, 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 8189782 8210555
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 * @summary Test for isSupportedOption
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 * @modules java.compiler
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 *          jdk.compiler
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 * @run main IsSupportedOptionTest
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 */
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import javax.tools.JavaCompiler;
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import javax.tools.ToolProvider;
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/**
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 * Tests for JavaCompiler.isSupportedOption method.
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 */
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public class IsSupportedOptionTest {
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    public static void main(String... args) throws Exception {
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        new IsSupportedOptionTest().run();
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    }
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    public void run() throws Exception {
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        JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
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        check(tool, "-source", 1);
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        check(tool, "--source", 1);
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        check(tool, "-target", 1);
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        check(tool, "--target", 1);
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        check(tool, "--add-modules", 1);
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        check(tool, "-verbose", 0);
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        check(tool, "-proc:none", 0);
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        check(tool, "-Xlint", 0);
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        check(tool, "-Xlint:unchecked", 0);
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        check(tool, "-Xdoclint", 0);
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        check(tool, "-Xdoclint:stats", 0);
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        check(tool, "-Xdoclint/package:foo", 0);
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        check(tool, "--debug=any", 1);
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        check(tool, "-g", 0);
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        check(tool, "-g:vars", 0);
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        check(tool, "-g:none", 0);
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        check(tool, "-ZZZ", -1);
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        check(tool, "-Afoobar", 0);
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        try {
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            check(tool, null, -1);
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            throw new AssertionError("null was accepted without exception");
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        } catch (NullPointerException e) {
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        }
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    }
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    private void check(JavaCompiler tool, String option, int numArgs) {
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        System.err.println("check " + option);
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        int n = tool.isSupportedOption(option);
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        if (n != numArgs) {
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            throw new AssertionError("unexpected result for option: " + option + ": " + n);
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        }
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    }
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}
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