src/test/org/apache/commons/math/ConvergenceExceptionTest.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.math;

import junit.framework.TestCase;

import java.util.Locale;

/**
 * @version $Revision$ $Date$
 */
public class ConvergenceExceptionTest extends TestCase {

    public void testConstructor(){
        ConvergenceException ex = new ConvergenceException();
        assertNull(ex.getCause());
        assertNotNull(ex.getMessage());
        assertNotNull(ex.getMessage(Locale.FRENCH));
        assertFalse(ex.getMessage().equals(ex.getMessage(Locale.FRENCH)));
    }
    
    public void testConstructorPatternArguments(){
        String pattern = "a {0}x{1} matrix cannot be a rotation matrix";
        Object[] arguments = { Integer.valueOf(6), Integer.valueOf(4) };
        ConvergenceException ex = new ConvergenceException(pattern, arguments);
        assertNull(ex.getCause());
        assertEquals(pattern, ex.getPattern());
        assertEquals(arguments.length, ex.getArguments().length);
        for (int i = 0; i < arguments.length; ++i) {
            assertEquals(arguments[i], ex.getArguments()[i]);
        }
        assertFalse(pattern.equals(ex.getMessage()));
        assertFalse(ex.getMessage().equals(ex.getMessage(Locale.FRENCH)));
    }
    
    public void testConstructorCause(){
        String inMsg = "inner message";
        Exception cause = new Exception(inMsg);
        ConvergenceException ex = new ConvergenceException(cause);
        assertEquals(cause, ex.getCause());
    }

    public void testConstructorPatternArgumentsCause(){
        String pattern = "a {0}x{1} matrix cannot be a rotation matrix";
        Object[] arguments = { Integer.valueOf(6), Integer.valueOf(4) };
        String inMsg = "inner message";
        Exception cause = new Exception(inMsg);
        ConvergenceException ex = new ConvergenceException(pattern, arguments, cause);
        assertEquals(cause, ex.getCause());
        assertEquals(pattern, ex.getPattern());
        assertEquals(arguments.length, ex.getArguments().length);
        for (int i = 0; i < arguments.length; ++i) {
            assertEquals(arguments[i], ex.getArguments()[i]);
        }
        assertFalse(pattern.equals(ex.getMessage()));
        assertFalse(ex.getMessage().equals(ex.getMessage(Locale.FRENCH)));
    }
    
}