diff --git a/api/src/test/java/org/openmrs/util/DoubleRangeTest.java b/api/src/test/java/org/openmrs/util/DoubleRangeTest.java
index df7c0622d91c..86e34edf4293 100644
--- a/api/src/test/java/org/openmrs/util/DoubleRangeTest.java
+++ b/api/src/test/java/org/openmrs/util/DoubleRangeTest.java
@@ -215,6 +215,16 @@ public void contains_shouldReturnFalseIfParameterIsLowerThanLow() {
 		assertFalse(r1.contains(d));
 	}
 	
+	/**
+	 * @see DoubleRange#contains(double)
+	 */
+	@Test
+	void contains_shouldReturnTrueWhenLowIsNullAndValueIsWithinRange() {
+	    DoubleRange r = new DoubleRange(null, 10.0);
+	    Double d = 5.0;
+	    assertTrue(r.contains(d));
+	}
+	
 	/**
 	 * @see DoubleRange#toString()
 	 */
@@ -269,4 +279,13 @@ public void toString_shouldPrintEmptyLowIfLowIsNull() {
 		DoubleRange r = new DoubleRange(null, 1.0);
 		assertEquals("< 1.0", r.toString());
 	}
+	
+	/**
+	 * Verifies that contains() returns true when the upper bound is unbounded (null).
+	 */
+	@Test
+	void contains_shouldReturnTrueWhenUpperBoundIsUnbounded() {
+	    DoubleRange r = new DoubleRange(5.0, null);
+	    assertTrue(r.contains(10.0));
+	}
 }