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/*

 * @test

 * @summary Make sure sjavac doesn't allow overlapping source and destination

 *          directories.

 * @bug 8061320

 * @library /tools/lib

 * @modules jdk.compiler/com.sun.tools.javac.api

 *          jdk.compiler/com.sun.tools.javac.main

 *          jdk.compiler/com.sun.tools.sjavac

 *          jdk.jdeps/com.sun.tools.javap

 * @run main Wrapper OverlappingSrcDst

 */

import java.io.File;

import java.nio.file.Paths;

public class OverlappingSrcDst extends SJavacTester {

    public static void main(String... args) {

        new OverlappingSrcDst().run();

    }

    public void run() {

        String abs = ToolBox.currDir.toAbsolutePath().toString();

        // Relative vs relative

        test("dir", "dir", false);

        test("dir", "dir/dst", false);

        test("dir/src", "dir", false);

        test("src", "dst", true);

        // Absolute vs absolute

        test(abs + "/dir", abs + "/dir", false);

        test(abs + "/dir", abs + "/dir/dst", false);

        test(abs + "/dir/src", abs + "/dir", false);

        test(abs + "/src", abs + "/dst", true);

        // Absolute vs relative

        test(abs + "/dir", "dir", false);

        test(abs + "/dir", "dir/dst", false);

        test(abs + "/dir/src", "dir", false);

        test(abs + "/src", "dst", true);

        // Relative vs absolute

        test("dir", abs + "/dir", false);

        test("dir", abs + "/dir/dst", false);

        test("dir/src", abs + "/dir", false);

        test("src", abs + "/dst", true);

    }

    private void test(String srcDir, String dstDir, boolean shouldSucceed) {

        boolean succeeded = testCompilation(srcDir, dstDir);

        if (shouldSucceed != succeeded) {

            throw new AssertionError(

                    String.format("Test failed for "

                                          + "srcDir=\"%s\", "

                                          + "dstDir=\"%s\". "

                                          + "Compilation was expected to %s but %s.",

                                  srcDir,

                                  dstDir,

                                  shouldSucceed ? "succeed" : "fail",

                                  succeeded ? "succeeded" : "failed"));

        }

    }

    private boolean testCompilation(String srcDir, String dstDir) {

        try {

            srcDir = srcDir.replace('/', File.separatorChar);

            dstDir = dstDir.replace('/', File.separatorChar);

            tb.writeFile(Paths.get(srcDir, "pkg", "A.java"), "package pkg; class A {}");

            compile("--state-dir=state", "-src", srcDir, "-d", dstDir);

            return true;

        } catch (Exception e) {

            return false;

        }

    }

}