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 *

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/*

 * @test

 * @bug 8029240 8030855

 * @summary Default methods not always visible under -source 7

 * Default methods should be visible under source previous to 8

 * @library /tools/lib

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

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

 * @run main DefaultMethodsNotVisibleForSourceLessThan8Test

 */

import java.nio.file.Files;

import java.nio.file.Paths;

public class DefaultMethodsNotVisibleForSourceLessThan8Test {

    // common definitions

    // this one should be compiled with source 8, the rest with source < 8

    static final String ISrc =

        "interface I {\n" +

        "    default void m() {}\n" +

        "}";

    static final String JSrc =

        "interface J extends I {}";

    static final String ASrc =

        "abstract class A implements I {}";

    static final String BSrc =

        "class B implements I {}";

    // test legacy implementations

    static final String C1Src =

        "class C1 implements I {\n" +

        "    public void m() {}\n" +

        "}";

    static final String C2Src =

        "class C2 implements J {\n" +

        "    public void m() {}\n" +

        "}";

    static final String C3Src =

        "class C3 extends A {\n" +

        "    public void m() {}\n" +

        "}";

    static final String C4Src =

        "class C4 extends B {\n" +

        "    public void m() {}\n" +

        "}";

    //test legacy invocations

    static final String LegacyInvocationSrc =

        "class LegacyInvocation {\n" +

        "    public static void test(I i, J j, A a, B b) {\n" +

        "        i.m();\n" +

        "        j.m();\n" +

        "        a.m();\n" +

        "        b.m();\n" +

        "    }\n" +

        "}";

    //test case super invocations

    static final String SubASrc =

        "class SubA extends A {\n" +

        "    public void test() {\n" +

        "        super.m();\n" +

        "    }\n" +

        "}";

    static final String SubBSrc =

        "class SubB extends B {\n" +

        "    public void test() {\n" +

        "        super.m();\n" +

        "    }\n" +

        "}";

    public static void main(String[] args) throws Exception {

        String[] sources = new String[] {

            "1.6",

            "1.7",

        };

        for (String source : sources) {

            new DefaultMethodsNotVisibleForSourceLessThan8Test().run(source);

        }

    }

    String outDir;

    String source;

    ToolBox tb = new ToolBox();

    void run(String source) throws Exception {

        this.source = source;

        outDir = "out" + source.replace('.', '_');

        testsPreparation();

        testLegacyImplementations();

        testLegacyInvocations();

        testSuperInvocations();

    }

    void testsPreparation() throws Exception {

        Files.createDirectory(Paths.get(outDir));

        /* as an extra check let's make sure that interface 'I' can't be compiled

         * with source < 8

         */

                .outdir(outDir)

                .options("-source", source)

                .sources(ISrc)

        //but it should compile with source >= 8

                .outdir(outDir)

                .sources(ISrc)

                .run();

                .outdir(outDir)

                .classpath(outDir)

                .options("-source", source)

                .sources(JSrc, ASrc, BSrc)

                .run();

    }

    void testLegacyImplementations() throws Exception {

        //compile C1-4

                .outdir(outDir)

                .classpath(outDir)

                .options("-source", source)

                .sources(C1Src, C2Src, C3Src, C4Src)

                .run();

    }

    void testLegacyInvocations() throws Exception {

        //compile LegacyInvocation

                .outdir(outDir)

                .classpath(outDir)

                .options("-source", source)

                .sources(LegacyInvocationSrc)

                .run();

    }

    void testSuperInvocations() throws Exception {

        //compile SubA, SubB

                .outdir(outDir)

                .classpath(outDir)

                .options("-source", source)

                .sources(SubASrc, SubBSrc)

                .run();

    }

}