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 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
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 *
 * This software is distributed in the hope that it will be useful,
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
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 */
package org.richfaces.fragment.test.choicePicker;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;

import java.util.List;

import org.junit.Test;
import org.openqa.selenium.WebElement;
import org.richfaces.fragment.common.picker.ChoicePickerHelper;
import org.richfaces.fragment.common.picker.ChoicePickerHelper.ByIndexChoicePicker;

import com.google.common.collect.Lists;
import com.google.common.collect.Range;

public class TestChoicePickerByIndex extends AbstractChoicePickerTest {

    @Test
    public void testPickEvery2nd() {
        ByIndexChoicePicker picker = ChoicePickerHelper.byIndex().everyNth(2);
        List<WebElement> pickMultiple = picker.pickMultiple(myFragment.getDivs());
        assertEquals(Lists.newArrayList("1", "3", "5"), getStringsFromElements(pickMultiple));
    }

    @Test
    public void testPickEvery2ndFromSecond() {
        ByIndexChoicePicker picker = ChoicePickerHelper.byIndex().everyNth(2, 1);
        List<WebElement> pickMultiple = picker.pickMultiple(myFragment.getDivs());
        assertEquals(Lists.newArrayList("2", "4", "6"), getStringsFromElements(pickMultiple));
    }

    @Test
    public void testPickEvery2ndFromTooHighIndex() {
        ByIndexChoicePicker picker = ChoicePickerHelper.byIndex().everyNth(2, 6);
        List<WebElement> pickMultiple = picker.pickMultiple(myFragment.getDivs());
        assertTrue(pickMultiple.isEmpty());
    }

    @Test
    public void testPickFromRange() {
        ByIndexChoicePicker picker = ChoicePickerHelper.byIndex().fromRange(Range.closed(0, 2));
        List<WebElement> pickMultiple = picker.pickMultiple(myFragment.getDivs());
        assertEquals(Lists.newArrayList("1", "2", "3"), getStringsFromElements(pickMultiple));

        picker = ChoicePickerHelper.byIndex().fromRange(Range.open(0, 2));
        pickMultiple = picker.pickMultiple(myFragment.getDivs());
        assertEquals(Lists.newArrayList("2"), getStringsFromElements(pickMultiple));

        picker = ChoicePickerHelper.byIndex().fromRange(Range.atLeast(3));
        pickMultiple = picker.pickMultiple(myFragment.getDivs());
        assertEquals(Lists.newArrayList("4", "5", "6"), getStringsFromElements(pickMultiple));

        picker = ChoicePickerHelper.byIndex().fromRange(Range.<Integer>all());
        pickMultiple = picker.pickMultiple(myFragment.getDivs());
        assertEquals(Lists.newArrayList("1", "2", "3", "4", "5", "6"), getStringsFromElements(pickMultiple));
    }

    @Test
    public void testPickFromRanges() {
        ByIndexChoicePicker picker = ChoicePickerHelper.byIndex()
                .fromRange(Range.atLeast(5))
                .fromRange(Range.closed(1, 2));
        List<WebElement> pickMultiple = picker.pickMultiple(myFragment.getDivs());
        assertEquals(Lists.newArrayList("6", "2", "3"), getStringsFromElements(pickMultiple));
    }

    @Test
    public void testPickMultiple() {
        ByIndexChoicePicker picker = ChoicePickerHelper.byIndex().indexes(1, 2).first().last().beforeLast(1);
        List<WebElement> pickMultiple = picker.pickMultiple(myFragment.getDivs());
        assertEquals(Lists.newArrayList("2", "3", "1", "6", "5"), getStringsFromElements(pickMultiple));
    }

    @Test
    public void testPickMultipleTimesSameIndexes() {
        ByIndexChoicePicker picker = ChoicePickerHelper.byIndex()
                .first().index(0)// the first element
                .index(1).indexes(0, 1)// the first two elements
                .last().beforeLast(0).index(5);// the last element

        List<WebElement> pickMultiple = picker.pickMultiple(myFragment.getDivs());
        assertEquals(Lists.newArrayList("1", "2", "6"), getStringsFromElements(pickMultiple));
    }

    @Test
    public void testPickNotExistingElement() {
        ByIndexChoicePicker picker = ChoicePickerHelper.byIndex().index(15);
        assertNull(picker.pick(myFragment.getDivs()));

        picker = ChoicePickerHelper.byIndex().fromRange(Range.<Integer>atLeast(15));
        assertNull(picker.pick(myFragment.getDivs()));
    }

    @Test
    public void testPickingPreservesOrder() {
        ByIndexChoicePicker picker = ChoicePickerHelper.byIndex()
                .last().first().beforeLast(1).index(1);

        List<WebElement> pickMultiple = picker.pickMultiple(myFragment.getDivs());
        assertEquals(Lists.newArrayList("6", "1", "5", "2"), getStringsFromElements(pickMultiple));
    }
}
