test/langtools/tools/javac/options/modes/FSInfoTest.java

/*
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 * 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.
 *
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 */

/*
 * @test
 * @bug 8044859
 * @summary test support for the internal file system cache
 * @modules jdk.compiler/com.sun.tools.javac.api
 *          jdk.compiler/com.sun.tools.javac.file
 *          jdk.compiler/com.sun.tools.javac.main
 *          jdk.compiler/com.sun.tools.javac.util
 * @build OptionModesTester
 * @run main FSInfoTest
 */

import com.sun.tools.javac.file.CacheFSInfo;
import com.sun.tools.javac.file.FSInfo;
import java.io.IOException;

public class FSInfoTest extends OptionModesTester {
    public static void main(String... args) throws Exception {
        FSInfoTest t = new FSInfoTest();
        t.writeFile("C.java", "class C { }");
        t.runTests();
    }

    @Test
    void testCacheEnabled() throws IOException {

        String[] args = { };
        String[] files = { "C.java"};

        TestResult tr = runMain(args, files);
        FSInfo info = tr.context.get(FSInfo.class);
        if (!(info instanceof CacheFSInfo))
            error("unexpected FSInfo; found " + info.getClass() + ", expected CacheFSInfo");
    }

    @Test
    void testCacheDisabled() throws IOException {
        writeFile("C.java", "class C { }");

        String[] args = { "-XDnonBatchMode" };
        String[] files = { "C.java"};

        TestResult tr = runMain(args, files);
        FSInfo info = tr.context.get(FSInfo.class);
        if (info instanceof CacheFSInfo)
            error("unexpected CacheFSInfo found");
    }
}