jdk-24/langtools/test/tools/javac/modules/SubpackageTest.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * 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 subpackage issues
 * @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 SubpackageTest
 */

import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.stream.Collectors;

public class SubpackageTest extends ModuleTestBase {

    public static void main(String... args) throws Exception {
        SubpackageTest t = new SubpackageTest();
        t.runTests();
    }

    @Test // based on JDK-8075435
    void testUnnamedModule(Path base) throws Exception {
        Path libsrc = base.resolve("lib/src");
        tb.writeJavaFiles(libsrc,
            "package p; public class E extends Error { }");
        Path libclasses = base.resolve("lib/classes");
        Files.createDirectories(libclasses);
        tb.new JavacTask()
                .outdir(libclasses)
                .files(findJavaFiles(libsrc))
                .run()
                .writeAll();

        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
            "package p.q;\n"
            + "import p.E;\n"
            + "class Test {\n"
            + "  void m() { throw new E(); }\n"
            + "}");
        Path classes = base.resolve("classes");
        Files.createDirectories(classes);

        tb.new JavacTask()
                .classpath(libclasses)
                .outdir(classes)
                .files(findJavaFiles(src))
                .run()
                .writeAll();
    }

    @Test
    void testSimpleMulti(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src.resolve("mp"),
                "module mp { exports p; }",
                "package p; public class C1 { }");
        tb.writeJavaFiles(src.resolve("mpq"),
                "module mpq { exports p.q; }",
                "package p.q; public class C2 { }");
        tb.writeJavaFiles(src.resolve("mpqr"),
                "module mpqr { exports p.q.r; }",
                "package p.q.r; public class C3 { }");
        tb.writeJavaFiles(src.resolve("m"),
                "module m {"
                + "  requires mp;\n"
                + "  requires mpq;\n"
                + "  requires mpqr;\n"
                + "}",
                "package x;\n"
                + "class C {\n"
                + "  p.C1 c1;\n"
                + "  p.q.C2 c2;\n"
                + "  p.q.r.C3 c3;\n"
                + "}");
        Path modules = base.resolve("modules");
        Files.createDirectories(modules);

        tb.new JavacTask()
                .options("-modulesourcepath", src.toString())
                .outdir(modules)
                .files(findJavaFiles(src))
                .run()
                .writeAll();
    }

}