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improved test coverage 

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@588671 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Luc Maisonobe 2007-10-26 14:49:23 +00:00
parent 08939e1068
commit f1961ea622
1 changed files with 66 additions and 20 deletions
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86
src/test/org/apache/commons/math/ode/DummyStepInterpolatorTest.java
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@ -70,32 +70,78 @@ public class DummyStepInterpolatorTest
}
public void testSerialization()
throws DerivativeException, IntegratorException,
IOException, ClassNotFoundException {
throws DerivativeException, IntegratorException,
IOException, ClassNotFoundException {
double[] y = { 0.0, 1.0, -2.0 };
DummyStepInterpolator interpolator = new DummyStepInterpolator(y, true);
interpolator.storeTime(0);
interpolator.shift();
interpolator.storeTime(1);
double[] y = { 0.0, 1.0, -2.0 };
DummyStepInterpolator interpolator = new DummyStepInterpolator(y, true);
interpolator.storeTime(0);
interpolator.shift();
interpolator.storeTime(1);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(bos);
oos.writeObject(interpolator);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(bos);
oos.writeObject(interpolator);
assertTrue(bos.size () > 150);
assertTrue(bos.size () < 250);
assertTrue(bos.size () > 150);
assertTrue(bos.size () < 250);
ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
ObjectInputStream ois = new ObjectInputStream(bis);
DummyStepInterpolator dsi = (DummyStepInterpolator) ois.readObject();
ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
ObjectInputStream ois = new ObjectInputStream(bis);
DummyStepInterpolator dsi = (DummyStepInterpolator) ois.readObject();
dsi.setInterpolatedTime(0.5);
double[] result = dsi.getInterpolatedState();
for (int i = 0; i < result.length; ++i) {
assertTrue(Math.abs(result[i] - y[i]) < 1.0e-10);
dsi.setInterpolatedTime(0.5);
double[] result = dsi.getInterpolatedState();
for (int i = 0; i < result.length; ++i) {
assertTrue(Math.abs(result[i] - y[i]) < 1.0e-10);
}
}
public void testSerializationError()
throws DerivativeException, IntegratorException,
IOException, ClassNotFoundException {
double[] y = { 0.0, 1.0, -2.0 };
ErrorGeneratingInterpolator interpolator =
new ErrorGeneratingInterpolator(y, true);
interpolator.storeTime(0);
interpolator.shift();
interpolator.storeTime(1);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(bos);
oos.writeObject(interpolator);
assertTrue(bos.size () > 250);
assertTrue(bos.size () < 300);
ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
ObjectInputStream ois = new ObjectInputStream(bis);
try {
ois.readObject();
fail("an exception should have been thrown");
} catch (IOException ioe) {
// expected behavior
assertNull(ioe.getMessage());
} catch (Exception e) {
fail("wrong exception caught");
}
}
private static class ErrorGeneratingInterpolator extends DummyStepInterpolator {
public ErrorGeneratingInterpolator() {
super();
}
protected ErrorGeneratingInterpolator(double[] y, boolean forward) {
super(y, forward);
}
public void computeInterpolatedState(double theta, double oneMinusThetaH)
throws DerivativeException {
throw new DerivativeException(null);
}
private static final long serialVersionUID = 0x3f6ab636f0c93571L;
}
public static Test suite() {