Merge branch 'LANG-1402' of https://github.com/MarkDacek/commons-lang

1 files changed, 15 insertions, 0 deletions

diff --git a/src/test/java/org/apache/commons/lang3/ArrayUtilsTest.java b/src/test/java/org/apache/commons/lang3/ArrayUtilsTest.java
index a853642e1..335b9a4a5 100644
--- a/src/test/java/org/apache/commons/lang3/ArrayUtilsTest.java
+++ b/src/test/java/org/apache/commons/lang3/ArrayUtilsTest.java
@@ -5111,4 +5111,19 @@ public class ArrayUtilsTest {
             assertTrue("Element " + element + " not found", ArrayUtils.contains(array1, element));
         }
     }
+
+    @Test
+    public void testIsArrayIndexValid(){
+        assertFalse(ArrayUtils.isArrayIndexValid(null, 0));
+        String[] array = new String[1];
+
+        //too big
+        assertFalse(ArrayUtils.isArrayIndexValid(array, 1));
+
+        //negative index
+        assertFalse(ArrayUtils.isArrayIndexValid(array, -1));
+
+        //good to go
+        assertTrue(ArrayUtils.isArrayIndexValid(array, 0));
+    }
 }