/*
 *  Copyright 2001-2013 Stephen Colebourne
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.joda.time;

import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.joda.time.base.BaseSingleFieldPeriod;

/**
 * This class is a Junit unit test for BaseSingleFieldPeriod.
 *
 * @author Stephen Colebourne
 */
public class TestBaseSingleFieldPeriod extends TestCase {
    // Test in 2002/03 as time zones are more well known
    // (before the late 90's they were all over the place)
    private static final DateTimeZone PARIS = DateTimeZone.forID("Europe/Paris");

    public static void main(String[] args) {
        junit.textui.TestRunner.run(suite());
    }

    public static TestSuite suite() {
        return new TestSuite(TestBaseSingleFieldPeriod.class);
    }

    public TestBaseSingleFieldPeriod(String name) {
        super(name);
    }

    @Override
    protected void setUp() throws Exception {
    }

    @Override
    protected void tearDown() throws Exception {
    }

    //-----------------------------------------------------------------------
    public void testFactory_between_RInstant() {
        // test using Days
        DateTime start = new DateTime(2006, 6, 9, 12, 0, 0, 0, PARIS);
        DateTime end1 = new DateTime(2006, 6, 12, 12, 0, 0, 0, PARIS);
        DateTime end2 = new DateTime(2006, 6, 15, 18, 0, 0, 0, PARIS);
        
        assertEquals(3, Single.between(start, end1, DurationFieldType.days()));
        assertEquals(0, Single.between(start, start, DurationFieldType.days()));
        assertEquals(0, Single.between(end1, end1, DurationFieldType.days()));
        assertEquals(-3, Single.between(end1, start, DurationFieldType.days()));
        assertEquals(6, Single.between(start, end2, DurationFieldType.days()));
        try {
            Single.between(start, (ReadableInstant) null, DurationFieldType.days());
            fail();
        } catch (IllegalArgumentException ex) {
            // expected
        }
        try {
            Single.between((ReadableInstant) null, end1, DurationFieldType.days());
            fail();
        } catch (IllegalArgumentException ex) {
            // expected
        }
        try {
            Single.between((ReadableInstant) null, (ReadableInstant) null, DurationFieldType.days());
            fail();
        } catch (IllegalArgumentException ex) {
            // expected
        }
    }

    @SuppressWarnings("deprecation")
    public void testFactory_between_RPartial() {
        LocalDate start = new LocalDate(2006, 6, 9);
        LocalDate end1 = new LocalDate(2006, 6, 12);
        YearMonthDay end2 = new YearMonthDay(2006, 6, 15);
        
        Single zero = new Single(0);
        assertEquals(3, Single.between(start, end1, zero));
        assertEquals(0, Single.between(start, start, zero));
        assertEquals(0, Single.between(end1, end1, zero));
        assertEquals(-3, Single.between(end1, start, zero));
        assertEquals(6, Single.between(start, end2, zero));
        try {
            Single.between(start, (ReadablePartial) null, zero);
            fail();
        } catch (IllegalArgumentException ex) {
            // expected
        }
        try {
            Single.between((ReadablePartial) null, end1, zero);
            fail();
        } catch (IllegalArgumentException ex) {
            // expected
        }
        try {
            Single.between((ReadablePartial) null, (ReadablePartial) null, zero);
            fail();
        } catch (IllegalArgumentException ex) {
            // expected
        }
        try {
            Single.between(start, new LocalTime(), zero);
            fail();
        } catch (IllegalArgumentException ex) {
            // expected
        }
        try {
            Single.between(new Partial(DateTimeFieldType.dayOfWeek(), 2), new Partial(DateTimeFieldType.dayOfMonth(), 3), zero);
            fail();
        } catch (IllegalArgumentException ex) {
            // expected
        }
        Partial p = new Partial(
                new DateTimeFieldType[] {DateTimeFieldType.year(), DateTimeFieldType.hourOfDay()},
                new int[] {1, 2});
        try {
            Single.between(p, p, zero);
            fail();
        } catch (IllegalArgumentException ex) {
            // expected
        }
    }

    public void testFactory_standardPeriodIn_RPeriod() {
        assertEquals(0, Single.standardPeriodIn((ReadablePeriod) null, DateTimeConstants.MILLIS_PER_DAY));
        assertEquals(0, Single.standardPeriodIn(Period.ZERO, DateTimeConstants.MILLIS_PER_DAY));
        assertEquals(1, Single.standardPeriodIn(new Period(0, 0, 0, 1, 0, 0, 0, 0), DateTimeConstants.MILLIS_PER_DAY));
        assertEquals(123, Single.standardPeriodIn(Period.days(123), DateTimeConstants.MILLIS_PER_DAY));
        assertEquals(-987, Single.standardPeriodIn(Period.days(-987), DateTimeConstants.MILLIS_PER_DAY));
        assertEquals(1, Single.standardPeriodIn(Period.hours(47), DateTimeConstants.MILLIS_PER_DAY));
        assertEquals(2, Single.standardPeriodIn(Period.hours(48), DateTimeConstants.MILLIS_PER_DAY));
        assertEquals(2, Single.standardPeriodIn(Period.hours(49), DateTimeConstants.MILLIS_PER_DAY));
        assertEquals(14, Single.standardPeriodIn(Period.weeks(2), DateTimeConstants.MILLIS_PER_DAY));
        try {
            Single.standardPeriodIn(Period.months(1), DateTimeConstants.MILLIS_PER_DAY);
            fail();
        } catch (IllegalArgumentException ex) {
            // expected
        }
    }

    //-----------------------------------------------------------------------
    public void testValueIndexMethods() {
        Single test = new Single(20);
        assertEquals(1, test.size());
        assertEquals(20, test.getValue(0));
        try {
            test.getValue(1);
            fail();
        } catch (IndexOutOfBoundsException ex) {
            // expected
        }
    }

    public void testFieldTypeIndexMethods() {
        Single test = new Single(20);
        assertEquals(1, test.size());
        assertEquals(DurationFieldType.days(), test.getFieldType(0));
        try {
            test.getFieldType(1);
            fail();
        } catch (IndexOutOfBoundsException ex) {
            // expected
        }
    }

    public void testIsSupported() {
        Single test = new Single(20);
        assertEquals(false, test.isSupported(DurationFieldType.years()));
        assertEquals(false, test.isSupported(DurationFieldType.months()));
        assertEquals(false, test.isSupported(DurationFieldType.weeks()));
        assertEquals(true, test.isSupported(DurationFieldType.days()));
        assertEquals(false, test.isSupported(DurationFieldType.hours()));
        assertEquals(false, test.isSupported(DurationFieldType.minutes()));
        assertEquals(false, test.isSupported(DurationFieldType.seconds()));
        assertEquals(false, test.isSupported(DurationFieldType.millis()));
    }        

    public void testGet() {
        Single test = new Single(20);
        assertEquals(0, test.get(DurationFieldType.years()));
        assertEquals(0, test.get(DurationFieldType.months()));
        assertEquals(0, test.get(DurationFieldType.weeks()));
        assertEquals(20, test.get(DurationFieldType.days()));
        assertEquals(0, test.get(DurationFieldType.hours()));
        assertEquals(0, test.get(DurationFieldType.minutes()));
        assertEquals(0, test.get(DurationFieldType.seconds()));
        assertEquals(0, test.get(DurationFieldType.millis()));
    }

    //-----------------------------------------------------------------------
    public void testEqualsHashCode() {
        Single testA = new Single(20);
        Single testB = new Single(20);
        assertEquals(true, testA.equals(testB));
        assertEquals(true, testB.equals(testA));
        assertEquals(true, testA.equals(testA));
        assertEquals(true, testB.equals(testB));
        assertEquals(true, testA.hashCode() == testB.hashCode());
        assertEquals(true, testA.hashCode() == testA.hashCode());
        assertEquals(true, testB.hashCode() == testB.hashCode());
        
        Single testC = new Single(30);
        assertEquals(false, testA.equals(testC));
        assertEquals(false, testB.equals(testC));
        assertEquals(false, testC.equals(testA));
        assertEquals(false, testC.equals(testB));
        assertEquals(false, testA.hashCode() == testC.hashCode());
        assertEquals(false, testB.hashCode() == testC.hashCode());
        
        assertEquals(true, testA.equals(Days.days(20)));
        assertEquals(true, testA.equals(new Period(0, 0, 0, 20, 0, 0, 0, 0, PeriodType.days())));
        assertEquals(false, testA.equals(Period.days(2)));
        assertEquals(false, testA.equals("Hello"));
        assertEquals(false, testA.equals(Hours.hours(2)));
        assertEquals(false, testA.equals(null));
    }

    public void testCompareTo() {
        Single test1 = new Single(21);
        Single test2 = new Single(22);
        Single test3 = new Single(23);
        assertEquals(true, test1.compareTo(test1) == 0);
        assertEquals(true, test1.compareTo(test2) < 0);
        assertEquals(true, test1.compareTo(test3) < 0);
        assertEquals(true, test2.compareTo(test1) > 0);
        assertEquals(true, test2.compareTo(test2) == 0);
        assertEquals(true, test2.compareTo(test3) < 0);
        assertEquals(true, test3.compareTo(test1) > 0);
        assertEquals(true, test3.compareTo(test2) > 0);
        assertEquals(true, test3.compareTo(test3) == 0);
        
//        try {
//            test1.compareTo("Hello");
//            fail();
//        } catch (ClassCastException ex) {
//            // expected
//        }
//        try {
//            test1.compareTo(new Period(0, 0, 0, 21, 0, 0, 0, 0, PeriodType.days()));
//            fail();
//        } catch (ClassCastException ex) {
//            // expected
//        }
        try {
            test1.compareTo(null);
            fail();
        } catch (NullPointerException ex) {
            // expected
        }
    }

    //-----------------------------------------------------------------------
    public void testToPeriod() {
        Single test = new Single(20);
        Period expected = Period.days(20);
        assertEquals(expected, test.toPeriod());
    }

    public void testToMutablePeriod() {
        Single test = new Single(20);
        MutablePeriod expected = new MutablePeriod(0, 0, 0, 20, 0, 0, 0, 0);
        assertEquals(expected, test.toMutablePeriod());
    }

//    public void testToDurationFrom() {
//        Period test = new Period(123L);
//        assertEquals(new Duration(123L), test.toDurationFrom(new Instant(0L)));
//    }
//
//    public void testToDurationTo() {
//        Period test = new Period(123L);
//        assertEquals(new Duration(123L), test.toDurationTo(new Instant(123L)));
//    }
//

    //-----------------------------------------------------------------------
    public void testGetSetValue() {
        Single test = new Single(20);
        assertEquals(20, test.getValue());
        test.setValue(10);
        assertEquals(10, test.getValue());
    }

    //-----------------------------------------------------------------------
    /** Test class. */
    static class Single extends BaseSingleFieldPeriod {

        public Single(int period) {
            super(period);
        }
        
        public static int between(ReadableInstant start, ReadableInstant end, DurationFieldType field) {
            return BaseSingleFieldPeriod.between(start, end, field);
        }
        
        public static int between(ReadablePartial start, ReadablePartial end, ReadablePeriod zeroInstance) {
            return BaseSingleFieldPeriod.between(start, end, zeroInstance);
        }
        
        public static int standardPeriodIn(ReadablePeriod period, long millisPerUnit) {
            return BaseSingleFieldPeriod.standardPeriodIn(period, millisPerUnit);
        }
        
        @Override
        public DurationFieldType getFieldType() {
            return DurationFieldType.days();
        }

        @Override
        public PeriodType getPeriodType() {
            return PeriodType.days();
        }
        
        @Override
        public int getValue() {
            return super.getValue();
        }
        
        @Override
        public void setValue(int value) {
            super.setValue(value);
        }
    }

}
