test/langtools/tools/javac/modules/ModulesAndModuleSourcePathTest.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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/**
 * @test
 * @bug 8165102 8175560 8296390
 * @summary incorrect message from javac
 * @library /tools/lib
 * @modules
 *      jdk.compiler/com.sun.tools.javac.api
 *      jdk.compiler/com.sun.tools.javac.main
 * @build toolbox.ToolBox toolbox.JavacTask ModuleTestBase
 * @run main ModulesAndModuleSourcePathTest
 */

import java.nio.file.Files;
import java.nio.file.Path;

import toolbox.JavacTask;
import toolbox.Task;
import toolbox.ToolBox;

public class ModulesAndModuleSourcePathTest extends ModuleTestBase {
    public static void main(String... args) throws Exception {
        ModulesAndModuleSourcePathTest t = new ModulesAndModuleSourcePathTest();
        t.runTests();
    }

    @Test
    public void testModuleNotInModuleSrcPath(Path base) throws Exception {
        Path src = base.resolve("src");
        Path m = src.resolve("m");
        Files.createDirectories(m);
        Path extra = base.resolve("m");
        tb.writeJavaFiles(extra, "module m {}");
        Path classes = base.resolve("classes");
        Files.createDirectories(classes);

        String log = new JavacTask(tb)
                .options("-XDrawDiagnostics", "--module-source-path", src.toString())
                .outdir(classes)
                .files(findJavaFiles(extra))
                .run(Task.Expect.FAIL)
                .writeAll()
                .getOutput(Task.OutputKind.DIRECT);
        if (!log.contains("module-info.java:1:1: compiler.err.module.not.found.on.module.source.path"))
            throw new Exception("expected output not found");
    }

    @Test
    public void testModuleNotInPackageHierarchy(Path base) throws Exception {
        Path src = base.resolve("src");
        Path m = src.resolve("m");
        Path extra = m.resolve("extra");
        tb.writeJavaFiles(extra, "module m {}");
        Path classes = base.resolve("classes");
        Files.createDirectories(classes);

        String log = new JavacTask(tb)
                .options("-XDrawDiagnostics", "--module-source-path", src.toString())
                .outdir(classes)
                .files(findJavaFiles(src))
                .run(Task.Expect.FAIL)
                .writeAll()
                .getOutput(Task.OutputKind.DIRECT);
        if (!log.contains("module-info.java:1:1: compiler.err.module.not.found.on.module.source.path"))
            throw new Exception("expected output not found");
    }

    @Test
    public void testImplicitModuleInfosModuleSourcePath(Path base) throws Exception {
        Path src = base.resolve("src");
        Path ma = src.resolve("java.base");
        Path mb = src.resolve("mb");
        tb.writeJavaFiles(ma,
                          "module java.base { exports java.lang;}",
                          """
                          package java.lang;
                          public class Object {}
                          """);
        tb.writeJavaFiles(mb,
                          """
                          //note the following import must be present to verify the behavior:
                          import java.lang.Object;
                          module mb {
                          }
                          """,
                          """
                          package impl;
                          public class Impl {}
                          """);
        Path classes = base.resolve("classes");
        Files.createDirectories(classes);

        new JavacTask(tb)
                .options("--module-source-path", src.toString(),
                         "--system", "none")
                .outdir(classes)
                .files(mb.resolve("impl").resolve("Impl.java"))
                .run(Task.Expect.SUCCESS)
                .writeAll()
                .getOutput(Task.OutputKind.DIRECT);
    }
}