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/**
 * @test
 * @requires vm.cds
 * @library /test/lib /test/hotspot/jtreg/runtime/cds/appcds
 * @modules jdk.jartool/sun.tools.jar
 * @run driver AddReads
 * @summary sanity test the --add-reads option
 */

import java.io.File;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.Asserts;

public class AddReads {

    private static final Path USER_DIR = Paths.get(System.getProperty("user.dir"));

    private static final String TEST_SRC = System.getProperty("test.src");

    private static final Path SRC_DIR = Paths.get(TEST_SRC, "src");
    private static final Path MODS_DIR = Paths.get("mods");

    // the module name of the test module
    private static final String MAIN_MODULE = "com.norequires";
    private static final String SUB_MODULE = "org.astro";

    // the module main class
    private static final String MAIN_CLASS = "com.norequires.Main";
    private static final String APP_CLASS = "org.astro.World";

    private static Path moduleDir = null;
    private static Path subJar = null;
    private static Path mainJar = null;

    public static void buildTestModule() throws Exception {

        // javac -d mods/$TESTMODULE src/$TESTMODULE/**
        JarBuilder.compileModule(SRC_DIR.resolve(SUB_MODULE),
                                       MODS_DIR.resolve(SUB_MODULE),
                                       null);

        Asserts.assertTrue(CompilerUtils
            .compile(SRC_DIR.resolve(MAIN_MODULE),
                     MODS_DIR.resolve(MAIN_MODULE),
                     "-cp", MODS_DIR.resolve(SUB_MODULE).toString(),
                     "--add-reads", "com.norequires=ALL-UNNAMED"));

        moduleDir = Files.createTempDirectory(USER_DIR, "mlib");
        subJar = moduleDir.resolve(SUB_MODULE + ".jar");
        String classes = MODS_DIR.resolve(SUB_MODULE).toString();
        JarBuilder.createModularJar(subJar.toString(), classes, null);

        mainJar = moduleDir.resolve(MAIN_MODULE + ".jar");
        classes = MODS_DIR.resolve(MAIN_MODULE).toString();
        JarBuilder.createModularJar(mainJar.toString(), classes, MAIN_CLASS);
    }

    public static void main(String... args) throws Exception {
        // compile the modules and create the modular jar files
        buildTestModule();
        String appClasses[] = {MAIN_CLASS, APP_CLASS};
        // create an archive with the classes in the modules built in the
        // previous step
        OutputAnalyzer output = TestCommon.createArchive(
                                        null, appClasses,
                                        "--module-path", moduleDir.toString(),
                                        "--add-modules", SUB_MODULE,
                                        "--add-reads", "com.norequires=org.astro",
                                        "-m", MAIN_MODULE);
        TestCommon.checkDump(output);
        String prefix[] = {"-Djava.class.path=", "-Xlog:class+load=trace",
                           "--add-modules", SUB_MODULE,
                           "--add-reads", "com.norequires=org.astro"};

        // run the com.norequires module with the archive with the same args
        // used during dump time.
        // The classes should be loaded from the archive.
        TestCommon.runWithModules(prefix,
                                  null, // --upgrade-module-path
                                  moduleDir.toString(), // --module-path
                                  MAIN_MODULE) // -m
            .assertNormalExit(out -> {
                out.shouldContain("[class,load] com.norequires.Main source: shared objects file")
                   .shouldContain("[class,load] org.astro.World source: shared objects file");
            });

        // create an archive with -cp pointing to the jar file containing the
        // org.astro module and --module-path pointing to the main module
        output = TestCommon.createArchive(
                                        subJar.toString(), appClasses,
                                        "--module-path", moduleDir.toString(),
                                        "--add-modules", SUB_MODULE,
                                        "--add-reads", "com.norequires=org.astro",
                                        "-m", MAIN_MODULE);
        TestCommon.checkDump(output);
        // run the com.norequires module with the archive with the sub-module
        // in the -cp and with -add-reads=com.norequires=ALL-UNNAMED
        // The main class should be loaded from the archive.
        // The org.astro.World should be loaded from the jar.
        String prefix2[] = {"-cp", subJar.toString(), "-Xlog:class+load=trace",
                           "--add-reads", "com.norequires=ALL-UNNAMED"};
        TestCommon.runWithModules(prefix2,
                                  null, // --upgrade-module-path
                                  moduleDir.toString(), // --module-path
                                  MAIN_MODULE) // -m
            .assertNormalExit(out -> {
                out.shouldContain("[class,load] com.norequires.Main source: shared objects file")
                   .shouldMatch(".class.load. org.astro.World source:.*org.astro.jar");
            });

    }
}