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improved test coverage 

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@797791 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Luc Maisonobe 2009-07-25 16:26:23 +00:00
parent afb42aaf58
commit cfd7b30418
1 changed files with 14 additions and 0 deletions
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14
src/test/org/apache/commons/math/optimization/univariate/BrentMinimizerTest.java
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@ -20,6 +20,7 @@ import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import org.apache.commons.math.FunctionEvaluationException;
import org.apache.commons.math.MathException;
import org.apache.commons.math.analysis.QuinticFunction;
import org.apache.commons.math.analysis.SinFunction;
@ -37,6 +38,8 @@ public final class BrentMinimizerTest {
public void testSinMin() throws MathException {
UnivariateRealFunction f = new SinFunction();
UnivariateRealOptimizer minimizer = new BrentOptimizer();
minimizer.setMaxEvaluations(200);
assertEquals(200, minimizer.getMaxEvaluations());
try {
minimizer.getResult();
fail("an exception should have been thrown");
@ -49,6 +52,17 @@ public final class BrentMinimizerTest {
assertTrue(minimizer.getIterationCount() <= 50);
assertEquals(3 * Math.PI / 2, minimizer.optimize(f, GoalType.MINIMIZE, 1, 5), 70 * minimizer.getAbsoluteAccuracy());
assertTrue(minimizer.getIterationCount() <= 50);
assertTrue(minimizer.getEvaluations() <= 100);
assertTrue(minimizer.getEvaluations() >= 90);
minimizer.setMaxEvaluations(50);
try {
minimizer.optimize(f, GoalType.MINIMIZE, 4, 5);
fail("an exception should have been thrown");
} catch (FunctionEvaluationException fee) {
// expected
} catch (Exception e) {
fail("wrong exception caught");
}
}
@Test