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1 package JSci.tests;
2
3 import java.lang.reflect.Constructor  ;
4 import java.util.Map ;
5 import java.util.HashMap ;
6 import junit.framework.*;
7 import JSci.maths.*;
8 import JSci.maths.vectors.*;
9 import JSci.maths.polynomials.*;
10
11
15 public class VectorTest extends junitx.extensions.EqualsHashCodeTestCase {
16 private final int N = 10;
17 private Constructor constructor;
18 private double array[];
19 private double array2[];
20
21 public static void main(String arg[]) {
22 junit.textui.TestRunner.run(suite());
23 }
24 public static Test suite() {
25 Class [] classes = new Class [] {
26 DoubleVector.class, DoubleSparseVector.class
27 };
28 TestSuite suite = new TestSuite(VectorTest.class.toString());
29 for(int i=0; i<classes.length; i++) {
30 Map properties = new HashMap ();
31 properties.put("test.vector.class", classes[i]);
32 suite.addTest(new TestProperties(new TestSuite(VectorTest.class, classes[i].toString()), properties));
33 }
34 return suite;
35 }
36 public VectorTest(String name) {
37 super(name);
38 }
39 protected void setUp() throws Exception {
40 JSci.GlobalSettings.ZERO_TOL=1.0e-6;
41 array=new double[N];
42 array2=new double[N];
43 Class vectorClass = (Class ) TestProperties.getProperties().get("test.vector.class");
44 constructor = vectorClass.getConstructor(new Class [] {double[].class});
45 for(int i=0; i<N; i++) {
46 array[i]=Math.random();
47 array2[i]=Math.random();
48 }
49 super.setUp();
50 }
51 protected Object createInstance() {
52 try {
53 return constructor.newInstance(new Object [] {array});
54 } catch(Exception e) {
55 throw new RuntimeException (e);
56 }
57 }
58 protected Object createNotEqualInstance() {
59 try {
60 return constructor.newInstance(new Object [] {array2});
61 } catch(Exception e) {
62 throw new RuntimeException (e.getMessage());
63 }
64 }
65 public void testConstructor() {
66 AbstractDoubleVector vec = (AbstractDoubleVector) createInstance();
67 assertEquals(N, vec.dimension());
68 for(int i=0;i<vec.dimension();i++)
69 assertEquals(array[i], vec.getComponent(i), JSci.GlobalSettings.ZERO_TOL);
70 }
71 public void testSetGet() {
72 AbstractDoubleVector vec = (AbstractDoubleVector) createInstance();
73 for(int i=0;i<vec.dimension();i++) {
74 vec.setComponent(i,-1.0);
75 assertEquals(-1.0, vec.getComponent(i), JSci.GlobalSettings.ZERO_TOL);
76 vec.setComponent(i,array[i]);
77 }
78 }
79 public void testAdd() {
80 AbstractDoubleVector vec = (AbstractDoubleVector) createInstance();
81 AbstractDoubleVector ans=vec.add(vec);
82 for(int i=0;i<ans.dimension();i++) {
83 String msg = vec.getClass().toString()+": ("+i+")";
84 assertEquals(msg, array[i]+array[i], ans.getComponent(i), JSci.GlobalSettings.ZERO_TOL);
85 }
86 }
87 public void testSubtract() {
88 AbstractDoubleVector vec = (AbstractDoubleVector) createInstance();
89 AbstractDoubleVector ans=vec.subtract(vec);
90 for(int i=0;i<ans.dimension();i++) {
91 String msg = vec.getClass().toString()+": ("+i+")";
92 assertEquals(msg, array[i]-array[i], ans.getComponent(i), JSci.GlobalSettings.ZERO_TOL);
93 }
94 }
95 public void testScalarProduct() {
96 AbstractDoubleVector vec = (AbstractDoubleVector) createInstance();
97 double ans=vec.scalarProduct(vec);
98 double sp=ArrayMath.scalarProduct(array, array);
99 String msg = vec.getClass().toString();
100 assertEquals(msg, sp, ans, JSci.GlobalSettings.ZERO_TOL);
101 }
102 public void testMapComponents() {
103 AbstractDoubleVector vec = (AbstractDoubleVector) createInstance();
104 RealPolynomial map = new RealPolynomial(new double[] {2.0, 1.0});
105 AbstractDoubleVector ans = vec.mapComponents(map);
106 for(int i=0;i<ans.dimension();i++) {
107 String msg = vec.getClass().toString()+": ("+i+")";
108 assertEquals(msg, map.map(array[i]), ans.getComponent(i), JSci.GlobalSettings.ZERO_TOL);
109 }
110 }
111 }
112 |
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