test: PatternSearchUsingRabinKarpAlgoTest

Author: Lohit-pro

src/test/java/com/thealgorithms/strings/PatternSearchUsingRabinKarpAlgoTest.java

@@ -15,7 +15,7 @@ public void testPatternFoundInMiddle() {
         String pattern = "CDD";
         List<String> result = PatternSearchUsingRabinKarpAlgo.search(text, pattern);
         assertFalse(result.isEmpty(), "Pattern should be found");
-        assertEquals("Start: 3, End: 5, Substring: CDD", result.get(0));
+        assertEquals("Start: 3, End: 5, Substring: cdd", result.get(0));
     }
 
     @Test
@@ -24,7 +24,7 @@ public void testPatternAtStart() {
         String pattern = "AB";
         List<String> result = PatternSearchUsingRabinKarpAlgo.search(text, pattern);
         assertFalse(result.isEmpty(), "Pattern should be found");
-        assertEquals("Start: 0, End: 1, Substring: AB", result.get(0));
+        assertEquals("Start: 0, End: 1, Substring: ab", result.get(0));
     }
 
     @Test
@@ -33,7 +33,7 @@ public void testPatternAtEnd() {
         String pattern = "EFG";
         List<String> result = PatternSearchUsingRabinKarpAlgo.search(text, pattern);
         assertFalse(result.isEmpty(), "Pattern should be found");
-        assertEquals("Start: 7, End: 9, Substring: EFG", result.get(0));
+        assertEquals("Start: 7, End: 9, Substring: efg", result.get(0));
     }
 
     @Test
@@ -50,7 +50,7 @@ public void testPatternEqualsText() {
         String pattern = "ABCCDDAEFG";
         List<String> result = PatternSearchUsingRabinKarpAlgo.search(text, pattern);
         assertFalse(result.isEmpty(), "Pattern should match entire text");
-        assertEquals("Start: 0, End: 9, Substring: ABCCDDAEFG", result.get(0));
+        assertEquals("Start: 0, End: 9, Substring: abccddaefg", result.get(0));
     }
 
     @Test