/*

 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.

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

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

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

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * 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.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/**

 * @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

 * @build toolbox.ToolBox toolbox.JavacTask ModuleTestBase

 * @run main ProvidesTest

 */

import java.nio.file.Files;

import java.nio.file.Path;

import java.util.Arrays;

import java.util.List;

import toolbox.JavacTask;

import toolbox.Task;

import toolbox.ToolBox;

public class ProvidesTest extends ModuleTestBase {

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

        ProvidesTest t = new ProvidesTest();

        t.runTests();

    }

    @Test

    public 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);

        new JavacTask(tb)

                .outdir(classes)

                .files(findJavaFiles(src))

                .run(Task.Expect.SUCCESS)

                .writeAll();

    }

    @Test

    public 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);

        new JavacTask(tb)

                .outdir(modules)

                .files(findJavaFiles(src))

                .run(Task.Expect.SUCCESS)

                .writeAll();

    }

    @Test

    public 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 = new JavacTask(tb)

                .options("-XDrawDiagnostics")

                .outdir(classes)

                .files(findJavaFiles(src))

                .run(Task.Expect.FAIL)

                .writeAll()

                .getOutput(Task.OutputKind.DIRECT);

        if (!log.contains("module-info.java:1:24: compiler.err.expected: 'with'"))

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

    }

    @Test

    public 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);

        new JavacTask(tb)

                .options("-XDrawDiagnostic")

                .outdir(classes)

                .files(findJavaFiles(src))

                .run(Task.Expect.FAIL)

                .writeAll();

    }

    @Test

    public 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 = new JavacTask(tb)

                .options("-XDrawDiagnostics")

                .outdir(Files.createDirectories(base.resolve("classes")))

                .files(findJavaFiles(src))

                .run(Task.Expect.FAIL)

                .writeAll()

                .getOutputLines(Task.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)",

                "2 errors");

        if (!output.containsAll(expected)) {

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

        }

    }

    @Test

    public 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 = new JavacTask(tb)

                .options("-XDrawDiagnostics",

                .outdir(Files.createDirectories(base.resolve("classes")))

                .files(findJavaFiles(modules))

                .run(Task.Expect.FAIL)

                .writeAll()

                .getOutputLines(Task.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

    public 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 = new JavacTask(tb)

                .options("-XDrawDiagnostics")

                .outdir(Files.createDirectories(base.resolve("classes")))

                .files(findJavaFiles(src))

                .run(Task.Expect.FAIL)

                .writeAll()

                .getOutputLines(Task.OutputKind.DIRECT);

        List<String> expected = Arrays.asList(

                "module-info.java:1:31: compiler.err.service.implementation.must.be.subtype.of.service.interface",

                "module-info.java:1:12: compiler.warn.service.provided.but.not.exported.or.used: p.A",

                "1 error",

                "1 warning");

        if (!output.containsAll(expected)) {

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

        }

    }

    @Test

    public 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 = new JavacTask(tb)

                .options("-XDrawDiagnostics")

                .outdir(Files.createDirectories(base.resolve("classes")))

                .files(findJavaFiles(src))

                .run(Task.Expect.FAIL)

                .writeAll()

                .getOutputLines(Task.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

    public 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 { }");

        new JavacTask(tb)

                .outdir(Files.createDirectories(base.resolve("classes")))

                .files(findJavaFiles(src))

                .run(Task.Expect.SUCCESS)

                .writeAll();

    }

    @Test

    public 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 { }");

        new JavacTask(tb)

                .outdir(Files.createDirectories(base.resolve("classes")))

                .files(findJavaFiles(src))

                .run(Task.Expect.SUCCESS)

                .writeAll();

    }

    @Test

    public 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 = new JavacTask(tb)

                .options("-XDrawDiagnostics")

                .outdir(Files.createDirectories(base.resolve("classes")))

                .files(findJavaFiles(src))

                .run(Task.Expect.FAIL)

                .writeAll()

                .getOutputLines(Task.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

    public 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 = new JavacTask(tb)

                .options("-XDrawDiagnostics")

                .outdir(Files.createDirectories(base.resolve("classes")))

                .files(findJavaFiles(src))

                .run(Task.Expect.FAIL)

                .writeAll()

                .getOutputLines(Task.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

    public 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 = new JavacTask(tb)

                .options("-XDrawDiagnostics")

                .outdir(Files.createDirectories(base.resolve("classes")))

                .files(findJavaFiles(src))

                .run(Task.Expect.FAIL)

                .writeAll()

                .getOutputLines(Task.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

    public 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 = new JavacTask(tb)

                .options("-XDrawDiagnostics")

                .outdir(Files.createDirectories(base.resolve("classes")))

                .files(findJavaFiles(src))

                .run(Task.Expect.FAIL)

                .writeAll()

                .getOutputLines(Task.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

    public 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 = new JavacTask(tb)

                .options("-XDrawDiagnostics")

                .outdir(Files.createDirectories(base.resolve("classes")))

                .files(findJavaFiles(src))

                .run(Task.Expect.FAIL)

                .writeAll()

                .getOutputLines(Task.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

    public 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 {  }");

        new JavacTask(tb)

                .outdir(Files.createDirectories(base.resolve("classes")))

                .files(findJavaFiles(src))

                .run(Task.Expect.SUCCESS)

                .writeAll();

    }

    @Test

    public 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 = new JavacTask(tb)

                .options("-XDrawDiagnostics")

                .outdir(Files.createDirectories(base.resolve("classes")))

                .files(findJavaFiles(src))

                .run(Task.Expect.FAIL)

                .writeAll()

                .getOutputLines(Task.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

    public 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 = new JavacTask(tb)

                .options("-XDrawDiagnostics")

                .outdir(Files.createDirectories(base.resolve("classes")))

                .files(findJavaFiles(src))

                .run(Task.Expect.FAIL)

                .writeAll()

                .getOutputLines(Task.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");

        }

    }

}