/*

 * Copyright (c) 2012, 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

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 */

import java.util.Arrays;

import java.util.List;

import java.util.NoSuchElementException;

import java.util.PrimitiveIterator;

import java.util.Spliterator;

import java.util.stream.Collectors;

import org.testng.annotations.Test;

import static org.testng.Assert.*;

/*

 * @test

 * @summary Unit test for CharSequence default methods

 * @bug 8012665 8025002

 * @run testng DefaultTest

 */

@Test(groups = "lib")

public class DefaultTest {

    @Test(expectedExceptions = NoSuchElementException.class)

    public void testEmptyChars() {

        PrimitiveIterator.OfInt s = "".chars().iterator();

        assertFalse(s.hasNext());

        int ch = s.nextInt();

    }

    public void testSimpleChars() {

        List<Integer> list = "abc".chars().boxed().collect(Collectors.toList());

        assertEquals(list, Arrays.asList((int) 'a', (int) 'b', (int) 'c'));

    }

    public void testCodePointsCharacteristics() {

        Spliterator.OfInt s = "".codePoints().spliterator();

        assertFalse(s.hasCharacteristics(Spliterator.SIZED | Spliterator.SUBSIZED));

        assertTrue(s.hasCharacteristics(Spliterator.ORDERED));

    }

    @Test(expectedExceptions = NoSuchElementException.class)

    public void testEmptyCodePoints() {

        PrimitiveIterator.OfInt s = "".codePoints().iterator();

        assertFalse(s.hasNext());

        int cp = s.nextInt();

    }

    public void testSimpleCodePoints() {

        List<Integer> list = "abc".codePoints().boxed().collect(Collectors.toList());

        assertEquals(list, Arrays.asList((int)'a', (int)'b', (int)'c'));

    }

    public void testUndefCodePoints() {

        List<Integer> list = "X\ufffeY".codePoints().boxed().collect(Collectors.toList());

        assertEquals(list, Arrays.asList((int)'X', 0xFFFE, (int)'Y'));

    }

    public void testSurrogatePairing() {

        // U+1D11E = MUSICAL SYMBOL G CLEF

        // equivalent to surrogate pair U+D834 U+DD1E

        List<Integer> list;

        final int GCLEF = 0x1d11e;

        list = "\ud834\udd1e".codePoints().boxed().collect(Collectors.toList());

        assertEquals(list, Arrays.asList(GCLEF));

        list = "A\ud834\udd1e".codePoints().boxed().collect(Collectors.toList());

        assertEquals(list, Arrays.asList((int)'A', GCLEF));

        list = "\ud834\udd1eB".codePoints().boxed().collect(Collectors.toList());

        assertEquals(list, Arrays.asList(GCLEF, (int)'B'));

        list = "X\ud834\udd1eY".codePoints().boxed().collect(Collectors.toList());

        assertEquals(list, Arrays.asList((int)'X', GCLEF, (int)'Y'));

    }

    public void testUndefUnpaired() {

        List<Integer> list = "W\udd1eX\ud834Y\ufffeZ".codePoints().boxed().collect(Collectors.toList());

        assertEquals(list, Arrays.asList(

            (int)'W', 0xdd1e, (int)'X', 0xd834, (int)'Y', 0xfffe, (int)'Z'));

    }

}