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 * Copyright (c) 2013, 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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 * questions.

 */

/**

 * @test

 * @run testng SpliteratorCharacteristics

 */

import org.testng.annotations.Test;

import java.util.Arrays;

import java.util.Collection;

import java.util.Comparator;

import java.util.Map;

import java.util.Set;

import java.util.SortedMap;

import java.util.SortedSet;

import java.util.Spliterator;

import java.util.TreeMap;

import java.util.TreeSet;

import java.util.concurrent.ConcurrentSkipListMap;

import java.util.concurrent.ConcurrentSkipListSet;

import static org.testng.Assert.*;

@Test

public class SpliteratorCharacteristics {

    public void testTreeMap() {

        assertSortedMapCharacteristics(new TreeMap<>(),

                                       Spliterator.SIZED | Spliterator.DISTINCT |

                                       Spliterator.SORTED | Spliterator.ORDERED);

    }

    public void testTreeMapWithComparator() {

        assertSortedMapCharacteristics(new TreeMap<>(Comparator.reverseOrder()),

                                       Spliterator.SIZED | Spliterator.DISTINCT |

                                       Spliterator.SORTED | Spliterator.ORDERED);

    }

    public void testTreeSet() {

        assertSortedSetCharacteristics(new TreeSet<>(),

                                       Spliterator.SIZED | Spliterator.DISTINCT |

                                       Spliterator.SORTED | Spliterator.ORDERED);

    }

    public void testTreeSetWithComparator() {

        assertSortedSetCharacteristics(new TreeSet<>(Comparator.reverseOrder()),

                                       Spliterator.SIZED | Spliterator.DISTINCT |

                                       Spliterator.SORTED | Spliterator.ORDERED);

    }

    public void testConcurrentSkipListMap() {

        assertSortedMapCharacteristics(new ConcurrentSkipListMap<>(),

                                       Spliterator.CONCURRENT | Spliterator.NONNULL |

                                       Spliterator.DISTINCT | Spliterator.SORTED |

                                       Spliterator.ORDERED);

    }

    public void testConcurrentSkipListMapWithComparator() {

        assertSortedMapCharacteristics(new ConcurrentSkipListMap<>(Comparator.<Integer>reverseOrder()),

                                       Spliterator.CONCURRENT | Spliterator.NONNULL |

                                       Spliterator.DISTINCT | Spliterator.SORTED |

                                       Spliterator.ORDERED);

    }

    public void testConcurrentSkipListSet() {

        assertSortedSetCharacteristics(new ConcurrentSkipListSet<>(),

                                       Spliterator.CONCURRENT | Spliterator.NONNULL |

                                       Spliterator.DISTINCT | Spliterator.SORTED |

                                       Spliterator.ORDERED);

    }

    public void testConcurrentSkipListSetWithComparator() {

        assertSortedSetCharacteristics(new ConcurrentSkipListSet<>(Comparator.reverseOrder()),

                                       Spliterator.CONCURRENT | Spliterator.NONNULL |

                                       Spliterator.DISTINCT | Spliterator.SORTED |

                                       Spliterator.ORDERED);

    }

    //

        initMap(m);

        Set<Integer> keys = m.keySet();

            assertNotNullComparator(keys);

        }

        else {

            assertNullComparator(keys);

        }

        assertISEComparator(m.values());

        assertNotNullComparator(m.entrySet());

    }

    void assertSortedSetCharacteristics(SortedSet<Integer> s, int keyCharacteristics) {

            assertNotNullComparator(s);

        }

        else {

            assertNullComparator(s);

        }

    }

    void initMap(Map<Integer, String> m) {

        m.put(1, "4");

        m.put(2, "3");

        m.put(3, "2");

        m.put(4, "1");

    }

    void initSet(Set<Integer> s) {

        s.addAll(Arrays.asList(1, 2, 3, 4));

    }

    void assertCharacteristics(Collection<?> c, int expectedCharacteristics) {

    }

    void assertNullComparator(Collection<?> c) {

    }

    void assertNotNullComparator(Collection<?> c) {

    }

    void assertISEComparator(Collection<?> c) {

        assertISEComparator(c.spliterator());

    }

    void assertISEComparator(Spliterator<?> s) {

        boolean caught = false;

        try {

            s.getComparator();

        }

        catch (IllegalStateException e) {

            caught = true;

        }

    }

}