org.marketcetera.util.misc.CollectionUtilsTest.java Source code

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Here is the source code for org.marketcetera.util.misc.CollectionUtilsTest.java

Source

package org.marketcetera.util.misc;

import java.util.Arrays;
import org.apache.commons.lang.ArrayUtils;
import org.apache.commons.lang.math.NumberUtils;
import org.junit.Test;
import org.marketcetera.util.test.TestCaseBase;

import static org.junit.Assert.*;

/**
 * @author tlerios@marketcetera.com
 * @since 0.6.0
 * @version $Id$
 */

/* $License$ */

public class CollectionUtilsTest extends TestCaseBase {
    @Test
    public void getLastNonNull() {
        assertNull(CollectionUtils.getLastNonNull(null));
        assertNull(CollectionUtils.getLastNonNull(Arrays.asList(new Integer[] {})));
        assertNull(CollectionUtils.getLastNonNull(Arrays.asList(new Integer[] { null })));
        assertEquals(NumberUtils.INTEGER_ONE, CollectionUtils.getLastNonNull(Arrays.asList(1)));
        assertEquals(NumberUtils.INTEGER_ONE, CollectionUtils.getLastNonNull(Arrays.asList(2, null, 1, null)));
        assertEquals(NumberUtils.INTEGER_ONE, CollectionUtils.getLastNonNull(Arrays.asList(2, null, null, 1)));
        assertEquals(NumberUtils.INTEGER_ONE, CollectionUtils.getLastNonNull(Arrays.asList(1, null, null)));
    }

    @Test
    public void toArray() {
        assertNull(CollectionUtils.toArray(null));
        assertArrayEquals(ArrayUtils.EMPTY_INT_ARRAY, CollectionUtils.toArray(Arrays.asList(new Integer[] {})));
        assertArrayEquals(ArrayUtils.EMPTY_INT_ARRAY,
                CollectionUtils.toArray(Arrays.asList(new Integer[] { null })));
        assertArrayEquals(new int[] { 1 }, CollectionUtils.toArray(Arrays.asList(1)));
        assertArrayEquals(new int[] { 1, 2 }, CollectionUtils.toArray(Arrays.asList(null, 1, null, 2, null)));
    }
}