Increase GeometricDistribution test coverage.
diff --git a/commons-statistics-distribution/src/test/java/org/apache/commons/statistics/distribution/GeometricDistributionTest.java b/commons-statistics-distribution/src/test/java/org/apache/commons/statistics/distribution/GeometricDistributionTest.java
index 2820ee4..fbc94f2 100644
--- a/commons-statistics-distribution/src/test/java/org/apache/commons/statistics/distribution/GeometricDistributionTest.java
+++ b/commons-statistics-distribution/src/test/java/org/apache/commons/statistics/distribution/GeometricDistributionTest.java
@@ -156,6 +156,16 @@
// ----------------- Additional test cases ---------------------------------
@Test
+ public void testConstructorPrecondition1() {
+ Assertions.assertThrows(IllegalArgumentException.class, () -> new GeometricDistribution(-0.1));
+ }
+
+ @Test
+ public void testConstructorPrecondition2() {
+ Assertions.assertThrows(IllegalArgumentException.class, () -> new GeometricDistribution(1.1));
+ }
+
+ @Test
public void testMoments() {
final double tol = 1e-9;
GeometricDistribution dist;
@@ -168,4 +178,12 @@
Assertions.assertEquals((1.0d - 0.3d) / 0.3d, dist.getMean(), tol);
Assertions.assertEquals((1.0d - 0.3d) / (0.3d * 0.3d), dist.getVariance(), tol);
}
+
+ @Test
+ public void testGetProbabilityOfSuccess() {
+ for (final double x : new double[] {0.1, 0.456, 0.999}) {
+ final GeometricDistribution dist = new GeometricDistribution(x);
+ Assertions.assertEquals(x, dist.getProbabilityOfSuccess());
+ }
+ }
}
