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/*

 * @test

 * @bug 8167057

 * @summary Tests --list-deps, --list-reduced-deps, --print-module-deps options

 * @modules java.logging

 *          java.xml

 *          jdk.compiler

 *          jdk.jdeps

 *          jdk.unsupported

 * @library ../lib

 * @build CompilerUtils JdepsRunner

 * @run testng ListModuleDeps

 */

import java.nio.file.Path;

import java.nio.file.Paths;

import java.util.Arrays;

import java.util.stream.Collectors;

import org.testng.annotations.BeforeTest;

import org.testng.annotations.DataProvider;

import org.testng.annotations.Test;

import static org.testng.Assert.assertEquals;

import static org.testng.Assert.assertTrue;

public class ListModuleDeps {

    private static final String TEST_SRC = System.getProperty("test.src");

    private static final Path SRC_DIR = Paths.get(TEST_SRC, "src");

    private static final Path CLASSES_DIR = Paths.get("classes");

    private static final Path LIB_DIR = Paths.get("lib");

    private static final Path HI_CLASS =

        CLASSES_DIR.resolve("hi").resolve("Hi.class");

    private static final Path FOO_CLASS =

        CLASSES_DIR.resolve("z").resolve("Foo.class");

    private static final Path BAR_CLASS =

        CLASSES_DIR.resolve("z").resolve("Bar.class");

    private static final Path UNSAFE_CLASS =

        CLASSES_DIR.resolve("z").resolve("UseUnsafe.class");

    /**

     * Compiles classes used by the test

     */

    @BeforeTest

    public void compileAll() throws Exception {

        // compile library

        assertTrue(CompilerUtils.compile(Paths.get(TEST_SRC, "src", "lib"), LIB_DIR));

        // simple program depends only on java.base

        assertTrue(CompilerUtils.compile(Paths.get(TEST_SRC, "src", "hi"), CLASSES_DIR));

        // compile classes in unnamed module

        assertTrue(CompilerUtils.compile(Paths.get(TEST_SRC, "src", "z"),

            CLASSES_DIR,

            "-cp", LIB_DIR.toString(),

            "--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED",

            "--add-exports=java.base/sun.security.util=ALL-UNNAMED",

            "--add-exports=java.xml/jdk.xml.internal=ALL-UNNAMED"

        ));

    }

    @DataProvider(name = "jdkModules")

    public Object[][] jdkModules() {

        return new Object[][]{

            {"jdk.compiler", new String[]{

                                "java.base/sun.reflect.annotation",

                                "java.compiler",

                             }

            },

        };

    }

    @Test(dataProvider = "jdkModules")

    public void testJDKModule(String moduleName, String[] expected) {

        JdepsRunner jdeps = JdepsRunner.run(

            "--list-deps", "-m", moduleName

        );

        String[] output = Arrays.stream(jdeps.output())

                                .map(s -> s.trim())

                                .toArray(String[]::new);

        assertEquals(output, expected);

    }

    @Test(dataProvider = "listdeps")

    public void testListDeps(Path classes, String[] expected) {

        JdepsRunner jdeps = JdepsRunner.run(

            "--class-path", LIB_DIR.toString(),

            "--list-deps", classes.toString()

        );

        String[] output = Arrays.stream(jdeps.output())

                                .map(s -> s.trim())

                                .toArray(String[]::new);

        assertEquals(output, expected);

    }

    @Test(dataProvider = "reduceddeps")

    public void testListReducedDeps(Path classes, String[]  expected) {

        JdepsRunner jdeps = JdepsRunner.run(

            "--class-path", LIB_DIR.toString(),

            "--list-reduced-deps", classes.toString()

        );

        String[] output = Arrays.stream(jdeps.output())

                                .map(s -> s.trim())

                                .toArray(String[]::new);

        assertEquals(output, expected);

    }

    @DataProvider(name = "listdeps")

    public Object[][] listdeps() {

        return new Object[][] {

            { CLASSES_DIR,  new String[] {

                                "java.base/jdk.internal.misc",

                                "java.base/sun.security.util",

                                "java.logging",

                                "java.sql",

                                "java.xml/jdk.xml.internal",

                                "jdk.unsupported"

                            }

            },

            { HI_CLASS,     new String[] {

                                "java.base"

                            }

            },

            { FOO_CLASS,    new String[] {

                                "java.base",

                                "java.logging",

                                "java.sql",

                                "java.xml"

                            }

            },

            { BAR_CLASS,    new String[] {

                                "java.base/sun.security.util",

                                "java.xml/jdk.xml.internal",

                            }

            },

            { UNSAFE_CLASS, new String[] {

                                "java.base/jdk.internal.misc",

                                "jdk.unsupported"

                            }

            },

        };

    }

    @DataProvider(name = "reduceddeps")

    public Object[][] reduceddeps() {

        Path barClass = CLASSES_DIR.resolve("z").resolve("Bar.class");

        return new Object[][] {

            { CLASSES_DIR,  new String[] {

                                "java.base/jdk.internal.misc",

                                "java.base/sun.security.util",

                                "java.sql",

                                "java.xml/jdk.xml.internal",

                                "jdk.unsupported"

                            }

            },

            { HI_CLASS,     new String[] {

                                "java.base"

                            }

            },

            { FOO_CLASS,    new String[] {

                                "java.base",

                                "java.sql"

                            }

            },

            { BAR_CLASS,    new String[] {

                                "java.base/sun.security.util",

                                "java.xml/jdk.xml.internal",

                            }

            },

            { UNSAFE_CLASS, new String[] {

                                "java.base/jdk.internal.misc",

                                "jdk.unsupported"

                            }

            },

        };

    }

    @Test(dataProvider = "moduledeps")

    public void testPrintModuleDeps(Path classes, String expected) {

        JdepsRunner jdeps = JdepsRunner.run(

            "--class-path", LIB_DIR.toString(),

            "--print-module-deps", classes.toString()

        );

        String output = Arrays.stream(jdeps.output())

            .map(s -> s.trim())

            .collect(Collectors.joining(","));

        assertEquals(output, expected);

    }

    @DataProvider(name = "moduledeps")

    public Object[][] moduledeps() {

        Path barClass = CLASSES_DIR.resolve("z").resolve("Bar.class");

        return new Object[][] {

            // java.xml is an implied reads edge from java.sql

            { CLASSES_DIR,  "java.base,java.sql,jdk.unsupported"},

            { HI_CLASS,     "java.base"},

            { FOO_CLASS,    "java.base,java.sql"},

            { BAR_CLASS,    "java.base,java.xml"},

            { UNSAFE_CLASS, "java.base,jdk.unsupported"},

        };

    }

}