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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

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 * 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

 * @summary tests for multi-module mode compilation

 * @library /tools/lib

 * @modules

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

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

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

 * @build ToolBox ModuleTestBase

 * @run main MultiModuleModeTest

 */

import java.nio.file.Files;

import java.nio.file.Path;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

public class MultiModuleModeTest extends ModuleTestBase {

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

        new MultiModuleModeTest().runTests();

    }

    @Test

    void testDuplicateModules(Path base) throws Exception {

        Path src = base.resolve("src");

        Path src_m1 = src.resolve("m1");

        tb.writeJavaFiles(src_m1, "module m1 { }");

        Path src_m2 = src.resolve("m2");

        tb.writeJavaFiles(src_m2, "module m1 { }");

        Path classes = base.resolve("classes");

        tb.createDirectories(classes);

        String log = tb.new JavacTask()

                .options("-XDrawDiagnostics",

                        "-modulesourcepath", src.toString())

                .outdir(classes)

                .files(findJavaFiles(src))

                .run(ToolBox.Expect.FAIL)

                .writeAll()

                .getOutput(ToolBox.OutputKind.DIRECT);

        if (!log.contains("module-info.java:1:1: compiler.err.duplicate.module: m1"))

            throw new Exception("expected output not found");

    }

    @Test

    void testCantFindModule(Path base) throws Exception {

        Path src = base.resolve("src");

        Path src_m1 = src.resolve("m1");

        tb.writeJavaFiles(src_m1, "module m1 { }");

        Path misc = base.resolve("misc");

        tb.writeJavaFiles(misc, "package p; class C { }");

        Path classes = base.resolve("classes");

        tb.createDirectories(classes);

        String log = tb.new JavacTask()

                .options("-XDrawDiagnostics",

                        "-modulesourcepath", src.toString())

                .outdir(classes)

                .files(join(findJavaFiles(src), findJavaFiles(misc)))

                .run(ToolBox.Expect.FAIL)

                .writeAll()

                .getOutput(ToolBox.OutputKind.DIRECT);

        if (!log.contains("C.java:1:1: compiler.err.unnamed.pkg.not.allowed.named.modules"))

            throw new Exception("expected output not found");

    }

    @Test

    void testModuleNameMismatch(Path base) throws Exception {

        Path src = base.resolve("src");

        Path src_m1 = src.resolve("m1");

        tb.writeJavaFiles(src_m1, "module m2 { }");

        Path classes = base.resolve("classes");

        tb.createDirectories(classes);

        String log = tb.new JavacTask()

                .options("-XDrawDiagnostics",

                        "-modulesourcepath", src.toString())

                .outdir(classes)

                .files(findJavaFiles(src))

                .run(ToolBox.Expect.FAIL)

                .writeAll()

                .getOutput(ToolBox.OutputKind.DIRECT);

        if (!log.contains("module-info.java:1:8: compiler.err.module.name.mismatch: m2, m1"))

            throw new Exception("expected output not found");

    }

    @Test

    void testImplicitModuleSource(Path base) throws Exception {

        Path src = base.resolve("src");

        tb.writeJavaFiles(src.resolve("m1"), "module m1 { }");

        tb.writeJavaFiles(src.resolve("m2"), "module m2 { requires m1; }");

        Path modules = base.resolve("modules");

        Files.createDirectories(modules);

        tb.new JavacTask()

                .options("-modulesourcepath", src.toString())

                .outdir(modules)

                .files(src.resolve("m2/module-info.java"))

                .run()

                .writeAll();

    }

    @Test

    void testImplicitModuleClass(Path base) throws Exception {

        Path src1 = base.resolve("src1");

        tb.writeJavaFiles(src1.resolve("m1"), "module m1 { }");

        Path modules1 = base.resolve("modules1");

        Files.createDirectories(modules1);

        tb.new JavacTask()

                .options("-modulesourcepath", src1.toString())

                .outdir(modules1)

                .files(src1.resolve("m1/module-info.java"))

                .run()

                .writeAll();

        Path src2= base.resolve("src2");

        tb.writeJavaFiles(src2.resolve("m2"), "module m2 { requires m1; }");

        Path modules2 = base.resolve("modules2");

        Files.createDirectories(modules2);

        tb.new JavacTask()

                .options("-modulepath", modules1.toString(),

                        "-modulesourcepath", src2.toString())

                .outdir(modules2)

                .files(src2.resolve("m2/module-info.java"))

                .run()

                .writeAll();

    }

    Path[] join(Path[] a, Path[] b) {

        List<Path> result = new ArrayList<>();

        result.addAll(Arrays.asList(a));

        result.addAll(Arrays.asList(b));

        return result.toArray(new Path[result.size()]);

    }

}