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package org.apache.commons.lang;

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

/**
 * Test cases for the {@link NumberRange} class.
 *
 * @author <a href="mailto:chrise@esha.com">Christopher Elkins</a>
 * @author <a href="mailto:ridesmet@users.sourceforge.net">Ringo De Smet</a>
 * @version $Revision: 1.5 $ $Date: 2003/08/18 02:22:25 $
 */

public final class NumberRangeTest extends TestCase {


    private NumberRange tenToTwenty;
    private Number five;
    private Number ten;
    private Number fifteen;
    private Number twenty;
    private Number twentyFive;


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


    public void setUp() {
        five       = new Integer(5);
        ten        = new Integer(10);
        fifteen    = new Integer(15);
        twenty     = new Integer(20);
        twentyFive = new Integer(25);

        tenToTwenty = new NumberRange(ten, twenty);
    }


    public static Test suite() {
        TestSuite suite = new TestSuite(NumberRangeTest.class);
        suite.setName("NumberRange Tests");
        return suite;
    }

    public void testMaxMin() {
        boolean expected = true;
        boolean result = tenToTwenty.getMaximum().equals(twenty);
        assertEquals(expected, result);

        expected = true;
        result = tenToTwenty.getMinimum().equals(ten);
        assertEquals(expected, result);
    }

    public void testEquals() {
        boolean expected = false;
        boolean result = tenToTwenty.equals(new NumberRange(five, ten));
        assertEquals(expected, result);

        expected = true;
        result = tenToTwenty.equals(new NumberRange(ten, twenty));
        assertEquals(expected, result);

        expected = false;
        result = tenToTwenty.equals(new NumberRange(ten, fifteen));
        assertEquals(expected, result);

        expected = false;
        result = tenToTwenty.equals(new NumberRange(fifteen, twenty));
        assertEquals(expected, result);
    }


    public void testIncludesNumber() {
        boolean expected = false;
        boolean result = tenToTwenty.includesNumber(five);
        assertEquals(expected, result);

        expected = true;
        result = tenToTwenty.includesNumber(ten);
        assertEquals(expected, result);

        expected = true;
        result = tenToTwenty.includesNumber(fifteen);
        assertEquals(expected, result);

        expected = true;
        result = tenToTwenty.includesNumber(twenty);
        assertEquals(expected, result);

        expected = false;
        result = tenToTwenty.includesNumber(twentyFive);
        assertEquals(expected, result);
    }


    public void testIncludesRange() {
        boolean expected = false;
        boolean result = tenToTwenty.includesRange(new NumberRange(five, ten));
        assertEquals(expected, result);

        expected = false;
        result = tenToTwenty.includesRange(new NumberRange(five, fifteen));
        assertEquals(expected, result);

        expected = true;
        result = tenToTwenty.includesRange(new NumberRange(ten, fifteen));
        assertEquals(expected, result);

        expected = true;
        result = tenToTwenty.includesRange(new NumberRange(ten, twenty));
        assertEquals(expected, result);

        expected = true;
        result = tenToTwenty.includesRange(new NumberRange(fifteen, twenty));
        assertEquals(expected, result);

        expected = false;
        result = 
            tenToTwenty.includesRange(new NumberRange(fifteen, twentyFive));
        assertEquals(expected, result);

        expected = false;
        result = 
            tenToTwenty.includesRange(new NumberRange(twenty, twentyFive));
        assertEquals(expected, result);
    }

	public void testConstructorNullParameters()
	{
		try
		{
			NumberRange nr = new NumberRange(null);
			fail("NumberRange(null) did not throw an exception.");
		}
		catch (Exception e)
		{
			assertTrue(
				"NumberRange(null)",
				e instanceof NullPointerException);
		}

		try
		{
			NumberRange nr = new NumberRange(five, null);
			fail("NumberRange(five, null) did not throw an exception.");
		}
		catch (Exception e)
		{
			assertTrue(
				"NumberRange(five, null)",
				e instanceof NullPointerException);
		}

		try
		{
			NumberRange nr = new NumberRange(null, five);
			fail("NumberRange(null, five) did not throw an exception.");
		}
		catch (Exception e)
		{
			assertTrue(
				"NumberRange(null, five)",
				e instanceof NullPointerException);
		}

	}

    public void testToString() {
        String expected = "10-20";
        String result = tenToTwenty.toString();
        assertEquals(expected, result);
    }


}