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1 package JSci.tests;
2
3 import java.util.Map  ;
4 import java.util.HashMap ;
5 import junit.framework.*;
6 import JSci.maths.*;
7
8
12 public class EngineerTest extends TestCase {
13 private static final int N=127;
14 private double[] signal = FourierTest.gaussian(N, 1.0, 8.0);
15
16 public static void main(String arg[]) {
17 junit.textui.TestRunner.run(EngineerTest.class);
18 }
19 public EngineerTest(String name) {
20 super(name);
21 }
22 protected void setUp() throws Exception {
23 JSci.GlobalSettings.ZERO_TOL=1.0e-10;
24 }
25 public void testResample() {
26 double[] resample = EngineerMath.resample(signal, N);
27 for(int i=0; i<N; i++)
28 assertEquals(signal[i], resample[i], JSci.GlobalSettings.ZERO_TOL);
29
30 resample = EngineerMath.resample(signal, (N+1)/2);
31 for(int i=0; i<(N+1)/2; i++)
32 assertEquals(signal[2*i], resample[i], JSci.GlobalSettings.ZERO_TOL);
33
34 resample = EngineerMath.resample(signal, 2*N-1);
35 for(int i=0; i<N; i++)
36 assertEquals(signal[i], resample[2*i], JSci.GlobalSettings.ZERO_TOL);
37 }
38 }
39 |
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