add unit tests for 'isEmpty'

ThrawnCA · ThrawnCA · commit f120730ba7ef · 2026-05-08T15:09:12.000+10:00
diff --git a/src/test/java/org/owasp/esapi/StringUtilitiesTest.java b/src/test/java/org/owasp/esapi/StringUtilitiesTest.java
@@ -98,4 +98,11 @@ public void testStripControls() {
         assertEquals( "     ", StringUtilities.stripControls( "     " ) );
         assertEquals( null, StringUtilities.stripControls( null ) );
     }
+
+    public void testIsEmpty() {
+        assertTrue(StringUtilities.isEmpty(null));
+        assertTrue(StringUtilities.isEmpty(""));
+        assertFalse(StringUtilities.isEmpty(" "));
+        assertFalse(StringUtilities.isEmpty("foo"));
+    }
 }

Original file line number	Diff line number	Diff line change
`@@ -98,4 +98,11 @@ public void testStripControls() {`
`98`	`98`	`assertEquals( " ", StringUtilities.stripControls( " " ) );`
`99`	`99`	`assertEquals( null, StringUtilities.stripControls( null ) );`
`100`	`100`	`}`
	`101`	`+`
	`102`	`+ public void testIsEmpty() {`
	`103`	`+ assertTrue(StringUtilities.isEmpty(null));`
	`104`	`+ assertTrue(StringUtilities.isEmpty(""));`
	`105`	`+ assertFalse(StringUtilities.isEmpty(" "));`
	`106`	`+ assertFalse(StringUtilities.isEmpty("foo"));`
	`107`	`+ }`
`101`	`108`	`}`