source: trunk/java-utils-test/src/test/java/de/ugoe/cs/util/ArrayToolsTest.java @ 1830

//   Copyright 2012 Georg-August-Universität Göttingen, Germany
//
//   Licensed 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 de.ugoe.cs.util;

import org.junit.*;
import static org.junit.Assert.*;

/**
 * The class <code>ArrayToolsTest</code> contains tests for the class
 * <code>{@link ArrayTools}</code>.
 * 
 * @author Steffen Herbold
 * @version 1.0
 */
public class ArrayToolsTest {

        Integer array[];

        @Test
        public void testFindIndex_1() throws Exception {
                Integer target = 3;
                int expected = 3;

                int result = ArrayTools.findIndex(array, target);

                assertEquals(expected, result);
        }

        @Test
        public void testFindIndex_2() throws Exception {
                Integer target = 4;
                int expected = 4;

                int result = ArrayTools.findIndex(array, target);

                assertEquals(expected, result);
        }

        @Test
        public void testFindIndex_3() throws Exception {
                Integer target = 7;

                int result = ArrayTools.findIndex(array, target);
                int expected = -1;
                
                assertEquals(expected, result);
        }

        @Test
        public void testFindIndex_4() throws Exception {
                Integer target = null;
                int result = ArrayTools.findIndex(array, target);
                int expected = 7;
                assertEquals(expected, result);
        }

        @Test
        public void testFindIndex_5() throws Exception {
                Object[] array = new Object[0];
                Object other = new Object();

                int result = ArrayTools.findIndex(array, other);

                assertEquals(-1, result);
        }
        
        @Test
        public void testFindMax_1() throws Exception {
                int expected = 8;
                
                int result = ArrayTools.findMax(array);
                
                assertEquals(expected, result);
        }
        
        @Test
        public void testFindMax_2() throws Exception {
                Integer[] arrayUnsorted = new Integer[]{2,3,6,1,8,9,1,1,3,15,4,0,-1};
                int expected = 9;
                
                int result = ArrayTools.findMax(arrayUnsorted);
                
                assertEquals(expected, result);
        }
        
        @Test
        public void testFindMax_3() throws Exception {
                Integer[] arrayUnsorted = new Integer[]{2,3,6,1,8,9,1,1,3,15,4,15,-1};
                int expected = 9;
                
                int result = ArrayTools.findMax(arrayUnsorted);
                
                assertEquals(expected, result);
        }
        
        @Test
        public void testFindMax_4() throws Exception {
                Integer[] arrayNoLenght = new Integer[]{};
                int expected = -1;
                
                int result = ArrayTools.findMax(arrayNoLenght);
                
                assertEquals(expected, result);
        }
        
        @Test
        public void testFindMax_5() throws Exception {
                Integer[] arrayNulls = new Integer[]{null, null};
                int expected = -1;
                
                int result = ArrayTools.findMax(arrayNulls);
                
                assertEquals(expected, result);
        }
        
        @Test
        public void testFindMax_6() throws Exception {
                int expected = 9;
                
                double[] array = {2,3,6,1,8,9,1,1,3,15,4,15,-1};
                
                int result = ArrayTools.findMax(array);
                
                assertEquals(expected, result);
        }
        
        @Test
        public void testFindMin_1() throws Exception {
                int expected = 0;
                
                int result = ArrayTools.findMin(array);
                
                assertEquals(expected, result);
        }
        
        @Test
        public void testFindMin_2() throws Exception {
                Integer[] arrayUnsorted = new Integer[]{2,3,6,1,8,9,1,1,-3,15,4,0,-1};
                int expected = 8;
                
                int result = ArrayTools.findMin(arrayUnsorted);
                
                assertEquals(expected, result);
        }
        
        @Test
        public void testFindMin_3() throws Exception {
                Integer[] arrayUnsorted = new Integer[]{2,3,6,1,8,9,1,-1,3,15,4,15,-1};
                int expected = 7;
                
                int result = ArrayTools.findMin(arrayUnsorted);
                
                assertEquals(expected, result);
        }
        
        @Test
        public void testFindMin_4() throws Exception {
                Integer[] arrayNoLenght = new Integer[]{};
                int expected = -1;
                
                int result = ArrayTools.findMin(arrayNoLenght);
                
                assertEquals(expected, result);
        }
        
        @Test
        public void testFindMin_5() throws Exception {
                Integer[] arrayNulls = new Integer[]{null, null};
                int expected = -1;
                
                int result = ArrayTools.findMin(arrayNulls);
                
                assertEquals(expected, result);
        }
        
        @Test
        public void testFindMin_6() throws Exception {
                int expected = -1;
                
                int result = ArrayTools.findMin(null);
                
                assertEquals(expected, result);
        }

        @Before
        public void setUp() throws Exception {
                array = new Integer[] { 0, 1, 2, 3, 4, 4, 5, null, 6 };
        }

        public static void main(String[] args) {
                new org.junit.runner.JUnitCore().run(ArrayToolsTest.class);
        }
}