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Another unit test.

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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@1067018 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Gilles Sadowski 2011-02-03 22:45:06 +00:00
parent 719fc75901
commit 95080b966f
1 changed files with 14 additions and 0 deletions
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14
src/test/java/org/apache/commons/math/analysis/function/StepFunctionTest.java
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@ -78,4 +78,18 @@ public class StepFunctionTest {
Assert.assertEquals(51.2, f.value(30), EPS);
Assert.assertEquals(51.2, f.value(Double.POSITIVE_INFINITY), EPS);
}
@Test
public void testHeaviside() {
final UnivariateRealFunction h = new StepFunction(new double[] {-1, 0},
new double[] {0, 1});
Assert.assertEquals(0, h.value(Double.NEGATIVE_INFINITY), 0);
Assert.assertEquals(0, h.value(-Double.MAX_VALUE), 0);
Assert.assertEquals(0, h.value(-2), 0);
Assert.assertEquals(0, h.value(-Double.MIN_VALUE), 0);
Assert.assertEquals(1, h.value(0), 0);
Assert.assertEquals(1, h.value(2), 0);
Assert.assertEquals(1, h.value(Double.POSITIVE_INFINITY), 0);
}
}