/*

 * 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

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 */

import org.testng.annotations.Test;

import java.io.IOException;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Collections;

import java.util.HashMap;

import java.util.IllegalFormatException;

import java.util.LinkedList;

import java.util.Map;

import java.util.Set;

import static org.testng.Assert.assertEquals;

import static org.testng.Assert.assertNotNull;

import static org.testng.Assert.assertNull;

import static org.testng.Assert.assertTrue;

/*

 * @test

 * @compile TestKit.java

 * @run testng TestKitTest

 */

public final class TestKitTest {

    @Test

    public void testAssertNotThrows() {

        Integer integer = TestKit.assertNotThrows(

                () -> TestKit.assertNotThrows(() -> 1)

        );

        assertEquals(integer, Integer.valueOf(1));

        RuntimeException re = TestKit.assertThrows(

                RuntimeException.class,

                () -> TestKit.assertNotThrows(() -> { throw new IOException(); })

        );

        assertEquals(re.getMessage(),

                "Expected to run normally, but threw "

                        + "java.io.IOException");

        TestKit.assertNotThrows(

                () -> TestKit.assertNotThrows(() -> { })

        );

        re = TestKit.assertThrows(

                RuntimeException.class,

                () ->  TestKit.assertNotThrows((TestKit.ThrowingProcedure) () -> { throw new IOException(); })

        );

        assertEquals(re.getMessage(),

                "Expected to run normally, but threw "

                        + "java.io.IOException");

    }

    @Test

    public void testAssertThrows() {

        NullPointerException npe = TestKit.assertThrows(

                NullPointerException.class,

                () -> TestKit.assertThrows(null, null)

        );

        assertNotNull(npe);

        assertTrue(Set.of("clazz", "code").contains(npe.getMessage()), npe.getMessage());

        npe = TestKit.assertThrows(

                NullPointerException.class,

                () -> TestKit.assertThrows(IOException.class, null)

        );

        assertNotNull(npe);

        assertEquals(npe.getMessage(), "code");

        npe = TestKit.assertThrows(

                NullPointerException.class,

                () -> TestKit.assertThrows(null, () -> { })

        );

        assertEquals(npe.getMessage(), "clazz");

        npe = TestKit.assertThrows(

                NullPointerException.class,

                () -> { throw new NullPointerException(); }

        );

        assertNotNull(npe);

        assertNull(npe.getMessage());

        assertEquals(npe.getClass(), NullPointerException.class);

        RuntimeException re = TestKit.assertThrows(

                RuntimeException.class,

                () -> TestKit.assertThrows(NullPointerException.class, () -> { })

        );

        assertEquals(re.getClass(), RuntimeException.class);

        assertEquals(re.getMessage(),

                "Expected to catch an exception of type "

                        + "java.lang.NullPointerException, but caught nothing");

        re = TestKit.assertThrows(

                RuntimeException.class,

                () -> { throw new NullPointerException(); }

        );

        assertNotNull(re);

        assertNull(re.getMessage());

        assertEquals(re.getClass(), NullPointerException.class);

        re = TestKit.assertThrows(

                RuntimeException.class,

                () -> TestKit.assertThrows(

                        IllegalFormatException.class,

                        () -> { throw new IndexOutOfBoundsException(); }

                ));

        assertNotNull(re);

        assertEquals(re.getClass(), RuntimeException.class);

        assertEquals(re.getMessage(),

                "Expected to catch an exception of type java.util.IllegalFormatException"

                        + ", but caught java.lang.IndexOutOfBoundsException");

    }

    @Test

    public void testAssertUnmodifiable() {

        TestKit.assertUnmodifiableList(

                Collections.unmodifiableList(

                        new ArrayList<>(Arrays.asList(1, 2, 3))));

        TestKit.assertThrows(RuntimeException.class,

                () -> TestKit.assertUnmodifiableList(new ArrayList<>()));

        TestKit.assertThrows(RuntimeException.class,

                () -> TestKit.assertUnmodifiableList(new LinkedList<>()));

        TestKit.assertThrows(RuntimeException.class,

                () -> TestKit.assertUnmodifiableList(

                        new ArrayList<>(Arrays.asList(1, 2, 3))));

        TestKit.assertUnmodifiableMap(Collections.unmodifiableMap(Map.of()));

        TestKit.assertThrows(RuntimeException.class,

                () -> TestKit.assertUnmodifiableMap(new HashMap<>()));

    }

}