FloatConverterTestCase.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.commons.beanutils.converters;

import junit.framework.TestSuite;

import org.apache.commons.beanutils.Converter;


/**
 * Test Case for the FloatConverter class.
 *
 * @author Rodney Waldhoff
 * @version $Revision: 471348 $ $Date: 2006-11-05 02:59:26 +0000 (Sun, 05 Nov 2006) $
 */

public class FloatConverterTestCase extends NumberConverterTestBase {

    private Converter converter = null;

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

    public FloatConverterTestCase(String name) {
        super(name);
    }
    
    // ------------------------------------------------------------------------

    public void setUp() throws Exception {
        converter = makeConverter();
        numbers[0] = new Float("-12");
        numbers[1] = new Float("13");
        numbers[2] = new Float("-22");
        numbers[3] = new Float("23");
    }

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

    public void tearDown() throws Exception {
        converter = null;
    }

    // ------------------------------------------------------------------------
    
    protected NumberConverter makeConverter() {
        return new FloatConverter();
    }
    
    protected NumberConverter makeConverter(Object defaultValue) {
        return new FloatConverter(defaultValue);
    }
    
    protected Class getExpectedType() {
        return Float.class;
    }

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

    public void testSimpleConversion() throws Exception {
        String[] message= { 
            "from String",
            "from String",
            "from String",
            "from String",
            "from String",
            "from String",
            "from String",
            "from Byte",
            "from Short",
            "from Integer",
            "from Long",
            "from Float",
            "from Double"
        };
        
        Object[] input = { 
            String.valueOf(Float.MIN_VALUE),
            "-17.2",
            "-1.1",
            "0.0",
            "1.1",
            "17.2",
            String.valueOf(Float.MAX_VALUE),
            new Byte((byte)7),
            new Short((short)8),
            new Integer(9),
            new Long(10),
            new Float(11.1),
            new Double(12.2),
        };
        
        Float[] expected = { 
            new Float(Float.MIN_VALUE),
            new Float(-17.2),
            new Float(-1.1),
            new Float(0.0),
            new Float(1.1),
            new Float(17.2),
            new Float(Float.MAX_VALUE),
            new Float(7),
            new Float(8),
            new Float(9),
            new Float(10),
            new Float(11.1),
            new Float(12.2)
        };
        
        for(int i=0;i<expected.length;i++) {
            assertEquals(
                message[i] + " to Float",
                expected[i].floatValue(),
                ((Float)(converter.convert(Float.class,input[i]))).floatValue(),
                0.00001);
            assertEquals(
                message[i] + " to float",
                expected[i].floatValue(),
                ((Float)(converter.convert(Float.TYPE,input[i]))).floatValue(),
                0.00001);
            assertEquals(
                message[i] + " to null type",
                expected[i].floatValue(),
                ((Float)(converter.convert(null,input[i]))).floatValue(),
                0.00001);
        }
    }


    /**
     * Test Invalid Amounts (too big/small)
     */
    public void testInvalidAmount() {
        Converter converter = makeConverter();
        Class clazz = Float.class;

        Double max     = new Double(Float.MAX_VALUE);
        Double tooBig  = new Double(Double.MAX_VALUE);

        // Maximum
        assertEquals("Maximum", new Float(Float.MAX_VALUE), converter.convert(clazz, max));

        // Too Large
        try {
            assertEquals("Too Big", null, converter.convert(clazz, tooBig));
            fail("More than maximum, expected ConversionException");
        } catch (Exception e) {
            // expected result
        }
    }
}