test: PatternSearchUsingRabinKarpAlgoTest

Author: Lohit-pro

src/main/java/com/thealgorithms/strings/PatternSearchUsingRabinKarpAlgo.java

@@ -1,7 +1,6 @@
 package com.thealgorithms.strings;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Scanner;
 
 /*
     @author Lohit M Kudlannavar (https://github.com/Lohit-pro)
@@ -70,26 +69,4 @@ public static List<String> search(String text, String pattern) {
 
         return result;
     }
-
-    public static void main(String[] args) {
-
-        Scanner in = new Scanner(System.in);
-        System.out.print("Enter the string: ");
-        String text = in.next();
-        //        String text = "ABCCDDAEFG";  test
-
-        System.out.print("Enter the searching string: ");
-        String pattern = in.next();
-        //        String pattern = "CDD";    testt
-
-        List<String> result = search(text.toLowerCase(), pattern.toLowerCase());
-
-        if (result.isEmpty()) {
-            System.out.println("Pattern not found in the given text.");
-        } else {
-            System.out.println("Pattern found: " + result);
-        }
-
-        in.close();
-    }
 }

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

@@ -13,51 +13,51 @@ public class PatternSearchUsingRabinKarpAlgoTest {
     public void testPatternFoundInMiddle() {
         String text = "ABCCDDAEFG";
         String pattern = "CDD";
-        List<String> result = PatternSearchUsingRabinKarpAlgo.search(text.toLowerCase(), pattern.toLowerCase());
+        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
     public void testPatternAtStart() {
         String text = "ABCCDDAEFG";
         String pattern = "AB";
-        List<String> result = PatternSearchUsingRabinKarpAlgo.search(text.toLowerCase(), pattern.toLowerCase());
+        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
     public void testPatternAtEnd() {
         String text = "ABCCDDAEFG";
         String pattern = "EFG";
-        List<String> result = PatternSearchUsingRabinKarpAlgo.search(text.toLowerCase(), pattern.toLowerCase());
+        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
     public void testPatternNotFound() {
         String text = "ABCCDDAEFG";
         String pattern = "XYZ";
-        List<String> result = PatternSearchUsingRabinKarpAlgo.search(text.toLowerCase(), pattern.toLowerCase());
+        List<String> result = PatternSearchUsingRabinKarpAlgo.search(text, pattern);
         assertTrue(result.isEmpty(), "Pattern should not be found");
     }
 
     @Test
     public void testPatternEqualsText() {
         String text = "ABCCDDAEFG";
         String pattern = "ABCCDDAEFG";
-        List<String> result = PatternSearchUsingRabinKarpAlgo.search(text.toLowerCase(), pattern.toLowerCase());
+        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
     public void testMultipleMatches() {
         String text = "AAAAAA";
         String pattern = "AA";
-        List<String> result = PatternSearchUsingRabinKarpAlgo.search(text.toLowerCase(), pattern.toLowerCase());
+        List<String> result = PatternSearchUsingRabinKarpAlgo.search(text, pattern);
         assertEquals(5, result.size(), "Pattern should appear multiple times");
     }