xref: /openjdk9/langtools/test/tools/javac/modules/ProvidesTest.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is free software; you can redistribute it and/or modify it
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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 simple tests of module provides
 * @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 ProvidesTest
 */

import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Arrays;
import java.util.List;

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

    @Test
    void testSimple(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                "module m { provides p1.C1 with p2.C2; }",
                "package p1; public class C1 { }",
                "package p2; public class C2 extends p1.C1 { }");
        Path classes = base.resolve("classes");
        Files.createDirectories(classes);

        tb.new JavacTask()
                .outdir(classes)
                .files(findJavaFiles(src))
                .run(ToolBox.Expect.SUCCESS)
                .writeAll();
    }

    @Test
    void testMulti(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src.resolve("m1"),
                "module m1 { exports p1; }",
                "package p1; public class C1 { }");
        tb.writeJavaFiles(src.resolve("m2"),
                "module m2 { requires m1; provides p1.C1 with p2.C2; }",
                "package p2; public class C2 extends p1.C1 { }");
        Path modules = base.resolve("modules");
        Files.createDirectories(modules);

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

    }

    @Test
    void testMissingWith(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                "module m { provides p.C; }",
                "package p; public class C { }");
        Path classes = base.resolve("classes");
        Files.createDirectories(classes);

        String log = tb.new JavacTask()
                .options("-XDrawDiagnostics")
                .outdir(classes)
                .files(findJavaFiles(src))
                .run(ToolBox.Expect.FAIL)
                .writeAll()
                .getOutput(ToolBox.OutputKind.DIRECT);

        if (!log.contains("module-info.java:1:24: compiler.err.expected: 'with'"))
            throw new Exception("expected output not found");

    }

    @Test
    void testDuplicateProvides(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                "module m { provides p1.C1 with p2.C2; provides p1.C1 with p2.C2; }",
                "package p1; public class C1 { }",
                "package p2; public class C2 extends p1.C1 { }");
        Path classes = base.resolve("classes");
        Files.createDirectories(classes);

        tb.new JavacTask()
                .options("-XDrawDiagnostic")
                .outdir(classes)
                .files(findJavaFiles(src))
                .run(ToolBox.Expect.FAIL)
                .writeAll();
    }

    @Test
    void testMissingService(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                "module m { provides p.Missing with p.C; }",
                "package p; public class C extends p.Missing { }");

        List<String> output = tb.new JavacTask()
                .options("-XDrawDiagnostics")
                .outdir(Files.createDirectories(base.resolve("classes")))
                .files(findJavaFiles(src))
                .run(ToolBox.Expect.FAIL)
                .writeAll()
                .getOutputLines(ToolBox.OutputKind.DIRECT);

        List<String> expected = Arrays.asList(
                "C.java:1:36: compiler.err.cant.resolve.location: kindname.class, Missing, , , (compiler.misc.location: kindname.package, p, null)",
                "module-info.java:1:22: compiler.err.cant.resolve.location: kindname.class, Missing, , , (compiler.misc.location: kindname.package, p, null)",
                "module-info.java:1:37: compiler.err.service.implementation.doesnt.have.a.no.args.constructor: <any>",
                "3 errors");
        if (!output.containsAll(expected)) {
            throw new Exception("Expected output not found");
        }
    }

    @Test
    void testProvidesFromAnotherModule(Path base) throws Exception {
        Path modules = base.resolve("modules");
        tb.writeJavaFiles(modules.resolve("M"),
                "module M { exports p; }",
                "package p; public class Service { }");
        tb.writeJavaFiles(modules.resolve("L"),
                "module L { requires M; provides p.Service with p.Service; }");

        List<String> output = tb.new JavacTask()
                .options("-XDrawDiagnostics",
                        "-modulesourcepath", modules.toString())
                .outdir(Files.createDirectories(base.resolve("classes")))
                .files(findJavaFiles(modules))
                .run(ToolBox.Expect.FAIL)
                .writeAll()
                .getOutputLines(ToolBox.OutputKind.DIRECT);
        List<String> expected = Arrays.asList(
                "module-info.java:1:24: compiler.err.service.implementation.not.in.right.module: M",
                "1 error");
        if (!output.containsAll(expected)) {
            throw new Exception("Expected output not found");
        }

    }

    @Test
    void testServiceIsNotImplemented(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                "module m { provides p.A with p.B; }",
                "package p; public class A { }",
                "package p; public class B { }");

        List<String> output = tb.new JavacTask()
                .options("-XDrawDiagnostics")
                .outdir(Files.createDirectories(base.resolve("classes")))
                .files(findJavaFiles(src))
                .run(ToolBox.Expect.FAIL)
                .writeAll()
                .getOutputLines(ToolBox.OutputKind.DIRECT);

        List<String> expected = Arrays.asList("module-info.java:1:31: compiler.err.prob.found.req: (compiler.misc.inconvertible.types: p.B, p.A)",
                "1 error");
        if (!output.containsAll(expected)) {
            throw new Exception("Expected output not found");
        }
    }

    @Test
    void testMissingImplementation(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                "module m { provides p.C with p.Impl; }",
                "package p; public class C { }");

        List<String> output = tb.new JavacTask()
                .options("-XDrawDiagnostics")
                .outdir(Files.createDirectories(base.resolve("classes")))
                .files(findJavaFiles(src))
                .run(ToolBox.Expect.FAIL)
                .writeAll()
                .getOutputLines(ToolBox.OutputKind.DIRECT);

        List<String> expected = Arrays.asList("module-info.java:1:31: compiler.err.cant.resolve.location: kindname.class, Impl, , , (compiler.misc.location: kindname.package, p, null)",
                "1 error");
        if (!output.containsAll(expected)) {
            throw new Exception("Expected output not found");
        }
    }

    @Test
    void testSeveralImplementations(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                "module m { provides p.C with p.Impl1; provides p.C with p.Impl2; }",
                "package p; public class C { }",
                "package p; public class Impl1 extends p.C { }",
                "package p; public class Impl2 extends p.C { }");

        tb.new JavacTask()
                .outdir(Files.createDirectories(base.resolve("classes")))
                .files(findJavaFiles(src))
                .run(ToolBox.Expect.SUCCESS)
                .writeAll();
    }

    @Test
    void testOneImplementationsForServices(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                "module m { provides p.Service1 with p.Impl; provides p.Service2 with p.Impl; }",
                "package p; public interface Service1 { }",
                "package p; public abstract class Service2 { }",
                "package p; public class Impl extends p.Service2 implements p.Service1 { }");

        tb.new JavacTask()
                .outdir(Files.createDirectories(base.resolve("classes")))
                .files(findJavaFiles(src))
                .run(ToolBox.Expect.SUCCESS)
                .writeAll();
    }

    @Test
    void testAbstractImplementation(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                "module m { provides p1.C1 with p2.C2; }",
                "package p1; public class C1 { }",
                "package p2; public abstract class C2 extends p1.C1 { }");

        List<String> output = tb.new JavacTask()
                .options("-XDrawDiagnostics")
                .outdir(Files.createDirectories(base.resolve("classes")))
                .files(findJavaFiles(src))
                .run(ToolBox.Expect.FAIL)
                .writeAll()
                .getOutputLines(ToolBox.OutputKind.DIRECT);

        List<String> expected = Arrays.asList(
                "module-info.java:1:34: compiler.err.service.implementation.is.abstract: p2.C2");
        if (!output.containsAll(expected)) {
            throw new Exception("Expected output not found");
        }
    }

    @Test
    void testInterfaceImplementation(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                "module m { provides p1.Service with p2.Impl; }",
                "package p1; public interface Service { }",
                "package p2; public interface Impl extends p1.Service { }");

        List<String> output = tb.new JavacTask()
                .options("-XDrawDiagnostics")
                .outdir(Files.createDirectories(base.resolve("classes")))
                .files(findJavaFiles(src))
                .run(ToolBox.Expect.FAIL)
                .writeAll()
                .getOutputLines(ToolBox.OutputKind.DIRECT);

        List<String> expected = Arrays.asList(
                "module-info.java:1:39: compiler.err.service.implementation.is.abstract: p2.Impl");
        if (!output.containsAll(expected)) {
            throw new Exception("Expected output not found");
        }
    }

    @Test
    void testProtectedImplementation(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                "module m { provides p1.C1 with p2.C2; }",
                "package p1; public class C1 { }",
                "package p2; class C2 extends p1.C1 { }");

        List<String> output = tb.new JavacTask()
                .options("-XDrawDiagnostics")
                .outdir(Files.createDirectories(base.resolve("classes")))
                .files(findJavaFiles(src))
                .run(ToolBox.Expect.FAIL)
                .writeAll()
                .getOutputLines(ToolBox.OutputKind.DIRECT);

        List<String> expected = Arrays.asList("module-info.java:1:34: compiler.err.not.def.public.cant.access: p2.C2, p2",
                "1 error");
        if (!output.containsAll(expected)) {
            throw new Exception("Expected output not found");
        }
    }

    @Test
    void testNoNoArgConstructor(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                "module m { uses p1.C1; provides p1.C1 with p2.C2; }",
                "package p1; public class C1 { }",
                "package p2; public class C2 extends p1.C1 { public C2(String str) { } }");

        List<String> output = tb.new JavacTask()
                .options("-XDrawDiagnostics")
                .outdir(Files.createDirectories(base.resolve("classes")))
                .files(findJavaFiles(src))
                .run(ToolBox.Expect.FAIL)
                .writeAll()
                .getOutputLines(ToolBox.OutputKind.DIRECT);

        List<String> expected = Arrays.asList(
                "module-info.java:1:46: compiler.err.service.implementation.doesnt.have.a.no.args.constructor: p2.C2");
        if (!output.containsAll(expected)) {
            throw new Exception("Expected output not found");
        }
    }

    @Test
    void testPrivateNoArgConstructor(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                "module m { uses p1.C1; provides p1.C1 with p2.C2; }",
                "package p1; public class C1 { }",
                "package p2; public class C2 extends p1.C1 { private C2() { } }");

        List<String> output = tb.new JavacTask()
                .options("-XDrawDiagnostics")
                .outdir(Files.createDirectories(base.resolve("classes")))
                .files(findJavaFiles(src))
                .run(ToolBox.Expect.FAIL)
                .writeAll()
                .getOutputLines(ToolBox.OutputKind.DIRECT);

        List<String> expected = Arrays.asList(
                "module-info.java:1:46: compiler.err.service.implementation.no.args.constructor.not.public: p2.C2");
        if (!output.containsAll(expected)) {
            throw new Exception("Expected output not found");
        }
    }

    @Test
    void testServiceIndirectlyImplemented(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                "module m { provides p1.C1 with p2.C3; }",
                "package p1; public class C1 { }",
                "package p2; public class C2 extends p1.C1 {  }",
                "package p2; public class C3 extends p2.C2 {  }");

        tb.new JavacTask()
                .outdir(Files.createDirectories(base.resolve("classes")))
                .files(findJavaFiles(src))
                .run(ToolBox.Expect.SUCCESS)
                .writeAll();
    }

    @Test
    void testServiceImplementationInnerClass(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                "module m { provides p1.C1 with p2.C2.Inner; }",
                "package p1; public class C1 { }",
                "package p2; public class C2  { public class Inner extends p1.C1 { } }");

        List<String> output = tb.new JavacTask()
                .options("-XDrawDiagnostics")
                .outdir(Files.createDirectories(base.resolve("classes")))
                .files(findJavaFiles(src))
                .run(ToolBox.Expect.FAIL)
                .writeAll()
                .getOutputLines(ToolBox.OutputKind.DIRECT);

        List<String> expected = Arrays.asList(
                "module-info.java:1:37: compiler.err.service.implementation.is.inner: p2.C2.Inner");
        if (!output.containsAll(expected)) {
            throw new Exception("Expected output not found");
        }
    }

    @Test
    void testServiceDefinitionInnerClass(Path base) throws Exception {
        Path src = base.resolve("src");
        tb.writeJavaFiles(src,
                "module m { provides p1.C1.InnerDefinition with p2.C2; }",
                "package p1; public class C1 { public class InnerDefinition { } }",
                "package p2; public class C2 extends p1.C1.InnerDefinition { }");

        List<String> output = tb.new JavacTask()
                .options("-XDrawDiagnostics")
                .outdir(Files.createDirectories(base.resolve("classes")))
                .files(findJavaFiles(src))
                .run(ToolBox.Expect.FAIL)
                .writeAll()
                .getOutputLines(ToolBox.OutputKind.DIRECT);

        List<String> expected = Arrays.asList(
                "module-info.java:1:26: compiler.err.service.definition.is.inner: p1.C1.InnerDefinition",
                "module-info.java:1:12: compiler.warn.service.provided.but.not.exported.or.used: p1.C1.InnerDefinition",
                "C2.java:1:20: compiler.err.encl.class.required: p1.C1.InnerDefinition",
                "2 errors",
                "1 warning");
        if (!output.containsAll(expected)) {
            throw new Exception("Expected output not found");
        }
    }
}