UT fix

Author: deepikaSingh2711

sdm/src/main/java/com/sap/cds/sdm/utilities/SDMUtils.java

@@ -164,6 +164,9 @@ public static boolean hasFileExtensionChanged(String originalFileName, String ne
     }
     String originalExtension = getFileExtension(originalFileName);
     String newExtension = getFileExtension(newFileName);
+    if (originalExtension.isEmpty() || newExtension.isEmpty()) {
+      return false;
+    }
     return !originalExtension.equals(newExtension);
   }
 

sdm/src/test/java/unit/com/sap/cds/sdm/utilities/SDMUtilsTest.java

@@ -156,6 +156,8 @@ public void testHasFileExtensionChanged() {
     assertFalse(SDMUtils.hasFileExtensionChanged("sample.pdf", "renamed.pdf"));
     assertFalse(SDMUtils.hasFileExtensionChanged(null, "file.txt"));
     assertFalse(SDMUtils.hasFileExtensionChanged("file.txt", null));
+    assertFalse(SDMUtils.hasFileExtensionChanged("sample.pdf", "sample123"));
+    assertFalse(SDMUtils.hasFileExtensionChanged("sample", "sample123"));
   }
 
   @Test