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1 package JSci.tests;
2
3 import JSci.GlobalSettings;
4 import JSci.maths.Complex;
5 import JSci.maths.ExtraMath;
6 import junit.framework.*;
7
8
12 public class ComplexTest extends junitx.extensions.EqualsHashCodeTestCase {
13 private double x, y;
14 private double u, v;
15
16 public static void main(String  arg[]) {
17 junit.textui.TestRunner.run(suite());
18 }
19 public static Test suite() {
20 return new junit.extensions.RepeatedTest(new TestSuite(ComplexTest.class), 5);
21 }
22 public ComplexTest(String name) {
23 super(name);
24 }
25 protected void setUp() throws Exception {
26 GlobalSettings.ZERO_TOL=1.0e-9;
27 x = ExtraMath.random(-1.0, 1.0);
28 y = ExtraMath.random(-1.0, 1.0);
29 u = ExtraMath.random(-1.0, 1.0);
30 v = ExtraMath.random(-1.0, 1.0);
31 super.setUp();
32 }
33 protected Object createInstance() {
34 return new Complex(x, y);
35 }
36 protected Object createNotEqualInstance() {
37 return new Complex(u, v);
38 }
39 public void testParseString() {
40 Complex expected = (Complex) createInstance();
41 Complex actual = new Complex(expected.toString());
42 assertEquals(expected, actual);
43 expected = new Complex(0.0, Double.MAX_VALUE);
44 actual = new Complex(expected.toString());
45 assertEquals(expected, actual);
46 expected = new Complex(Double.MIN_VALUE, 0.0);
47 actual = new Complex(expected.toString());
48 assertEquals(expected, actual);
49 }
50 public void testZero() {
51 assertTrue("0 is zero", Complex.ZERO.isZero());
52 Complex delta = (Complex) createInstance();
53 delta = delta.multiply(Math.random()*GlobalSettings.ZERO_TOL/delta.mod());
54 assertTrue("delta is zero", delta.isZero());
55 assertTrue("delta == zero", delta.equals(Complex.ZERO));
56 Complex z = (Complex) createNotEqualInstance();
57 assertTrue("z == z + delta", z.equals(z.add(delta)));
58 }
59 public void testSin() {
60 Complex expected = (Complex) createInstance();
61 Complex actual=Complex.sin(Complex.asin(expected));
62 assertEquals(expected, actual);
63 }
64 public void testCos() {
65 Complex expected = (Complex) createInstance();
66 Complex actual=Complex.cos(Complex.acos(expected));
67 assertEquals(expected, actual);
68 }
69 public void testTan() {
70 Complex expected = (Complex) createInstance();
71 Complex actual=Complex.tan(Complex.atan(expected));
72 assertEquals(expected, actual);
73 }
74 public void testSinh() {
75 Complex expected = (Complex) createInstance();
76 Complex actual=Complex.sinh(Complex.asinh(expected));
77 assertEquals(expected, actual);
78 }
79 public void testCosh() {
80 Complex expected = (Complex) createInstance();
81 Complex actual=Complex.cosh(Complex.acosh(expected));
82 assertEquals(expected, actual);
83 }
84 public void testTanh() {
85 Complex expected = (Complex) createInstance();
86 Complex actual=Complex.tanh(Complex.atanh(expected));
87 assertEquals(expected, actual);
88 }
89 }
90
91 |
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