src/test/org/apache/commons/lang/math/FloatRangeTest.java

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package org.apache.commons.lang.math;

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

/**
 * Test cases for the {@link FloatRange} class.
 *
 * @author Stephen Colebourne
 * @version $Id: FloatRangeTest.java,v 1.3 2003/08/04 01:14:02 scolebourne Exp $
 */
public final class FloatRangeTest extends AbstractRangeTest {

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

    public static Test suite() {
        TestSuite suite = new TestSuite(FloatRangeTest.class);
        suite.setName("FloatRange Tests");
        return suite;
    }
    
    public void setUp() {
        super.setUp();
        tenToTwenty = new FloatRange(float10, float20);
        otherRange = new NumberRange(ten, twenty);
    }

    protected Range createRange(Integer integer1, Integer integer2) {
        return new FloatRange(integer1, integer2);
    }
    protected Range createRange(Integer integer) {
        return new NumberRange(integer);
    }
    
    //--------------------------------------------------------------------------

    public void testConstructor1a() {
        FloatRange nr = new FloatRange(8f);
        assertEquals(float8, nr.getMinimumNumber());
        assertEquals(float8, nr.getMaximumNumber());
        
        try {
            new FloatRange(Float.NaN);
            fail();
        } catch (IllegalArgumentException ex) {}
    }
    
    public void testConstructor1b() {
        FloatRange nr = new FloatRange(float8);
        assertSame(float8, nr.getMinimumNumber());
        assertSame(float8, nr.getMaximumNumber());
        
        Range r = new FloatRange(nonComparable);
        
        try {
            new FloatRange(null);
            fail();
        } catch (IllegalArgumentException ex) {}
        try {
            new FloatRange(new Double(Double.NaN));
            fail();
        } catch (IllegalArgumentException ex) {}
    }
    
    public void testConstructor2a() {
        FloatRange nr = new FloatRange(8f, 10f);
        assertEquals(float8, nr.getMinimumNumber());
        assertEquals(float10, nr.getMaximumNumber());
        
        nr = new FloatRange(10f, 8f);
        assertEquals(float8, nr.getMinimumNumber());
        assertEquals(float10, nr.getMaximumNumber());
        
        try {
            new FloatRange(Float.NaN, 8f);
            fail();
        } catch (IllegalArgumentException ex) {}
    }

    public void testConstructor2b() {
        FloatRange nr = new FloatRange(float8, float10);
        assertSame(float8, nr.getMinimumNumber());
        assertSame(float10, nr.getMaximumNumber());
        
        nr = new FloatRange(float10, float8);
        assertSame(float8, nr.getMinimumNumber());
        assertSame(float10, nr.getMaximumNumber());
        
        nr = new FloatRange(float8, float10);
        assertSame(float8, nr.getMinimumNumber());
        assertEquals(float10, nr.getMaximumNumber());
        
        // not null
        try {
            new FloatRange(float8, null);
            fail();
        } catch (IllegalArgumentException ex) {}
        try {
            new FloatRange(null, float8);
            fail();
        } catch (IllegalArgumentException ex) {}
        try {
            new FloatRange(null, null);
            fail();
        } catch (IllegalArgumentException ex) {}
        
        try {
            new FloatRange(new Double(Double.NaN), float10);
            fail();
        } catch (IllegalArgumentException ex) {}
    }

    //--------------------------------------------------------------------------

    public void testContainsNumber() {
        assertEquals(false, tenToTwenty.containsNumber(null));
        assertEquals(true, tenToTwenty.containsNumber(nonComparable));
        
        assertEquals(false, tenToTwenty.containsNumber(five));
        assertEquals(true, tenToTwenty.containsNumber(ten));
        assertEquals(true, tenToTwenty.containsNumber(fifteen));
        assertEquals(true, tenToTwenty.containsNumber(twenty));
        assertEquals(false, tenToTwenty.containsNumber(twentyFive));
        
        assertEquals(false, tenToTwenty.containsNumber(long8));
        assertEquals(true, tenToTwenty.containsNumber(long10));
        assertEquals(true, tenToTwenty.containsNumber(long12));
        assertEquals(true, tenToTwenty.containsNumber(long20));
        assertEquals(false, tenToTwenty.containsNumber(long21));
        
        assertEquals(false, tenToTwenty.containsNumber(double8));
        assertEquals(true, tenToTwenty.containsNumber(double10));
        assertEquals(true, tenToTwenty.containsNumber(double12));
        assertEquals(true, tenToTwenty.containsNumber(double20));
        assertEquals(false, tenToTwenty.containsNumber(double21));
        
        assertEquals(false, tenToTwenty.containsNumber(float8));
        assertEquals(true, tenToTwenty.containsNumber(float10));
        assertEquals(true, tenToTwenty.containsNumber(float12));
        assertEquals(true, tenToTwenty.containsNumber(float20));
        assertEquals(false, tenToTwenty.containsNumber(float21));
    }

    public void testToString() {
        assertEquals("Range[10.0,20.0]", tenToTwenty.toString());
        assertEquals("Range[-20.0,-10.0]", createRange(new Integer(-20), new Integer(-10)).toString());
    }
    
    //--------------------------------------------------------------------------
    
}