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18 package org.apache.commons.math4.legacy.ode.nonstiff;
19
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21 import org.apache.commons.math4.legacy.core.Field;
22 import org.apache.commons.math4.legacy.core.RealFieldElement;
23 import org.apache.commons.math4.legacy.exception.MathIllegalStateException;
24 import org.apache.commons.math4.legacy.exception.MaxCountExceededException;
25 import org.apache.commons.math4.legacy.exception.NumberIsTooSmallException;
26 import org.junit.Test;
27
28 public class AdamsBashforthFieldIntegratorTest extends AdamsFieldIntegratorAbstractTest {
29
30 @Override
31 protected <T extends RealFieldElement<T>> AdamsFieldIntegrator<T>
32 createIntegrator(Field<T> field, final int nSteps, final double minStep, final double maxStep,
33 final double scalAbsoluteTolerance, final double scalRelativeTolerance) {
34 return new AdamsBashforthFieldIntegrator<>(field, nSteps, minStep, maxStep,
35 scalAbsoluteTolerance, scalRelativeTolerance);
36 }
37
38 @Override
39 protected <T extends RealFieldElement<T>> AdamsFieldIntegrator<T>
40 createIntegrator(Field<T> field, final int nSteps, final double minStep, final double maxStep,
41 final double[] vecAbsoluteTolerance, final double[] vecRelativeTolerance) {
42 return new AdamsBashforthFieldIntegrator<>(field, nSteps, minStep, maxStep,
43 vecAbsoluteTolerance, vecRelativeTolerance);
44 }
45
46 @Override
47 @Test(expected=NumberIsTooSmallException.class)
48 public void testMinStep() {
49 doDimensionCheck(Decimal64Field.getInstance());
50 }
51
52 @Override
53 @Test
54 public void testIncreasingTolerance() {
55
56
57
58 doTestIncreasingTolerance(Decimal64Field.getInstance(), 2.6, 122);
59 }
60
61 @Override
62 @Test(expected = MaxCountExceededException.class)
63 public void exceedMaxEvaluations() {
64 doExceedMaxEvaluations(Decimal64Field.getInstance(), 650);
65 }
66
67 @Override
68 @Test
69 public void backward() {
70 doBackward(Decimal64Field.getInstance(), 4.3e-8, 4.3e-8, 1.0e-16, "Adams-Bashforth");
71 }
72
73 @Override
74 @Test
75 public void polynomial() {
76 doPolynomial(Decimal64Field.getInstance(), 5, 0.004, 6.0e-10);
77 }
78
79 @Override
80 @Test(expected=MathIllegalStateException.class)
81 public void testStartFailure() {
82 doTestStartFailure(Decimal64Field.getInstance());
83 }
84 }