Update HammingDistanceTest.java

Author: TusharNaugain

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

@@ -4,18 +4,12 @@
 import java.util.stream.Stream;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Nested;
-import org.junit.jupiter.api.Test;
-import org.junit.jupiter.params.ParameterizedTest;
-import org.junit.jupiter.params.provider.Arguments;
+	@@ -14,104 +10,62 @@
 import org.junit.jupiter.params.provider.CsvSource;
 import org.junit.jupiter.params.provider.MethodSource;
 
-/**
- * HammingDistanceTest performs unit tests on the HammingDistance class.
- */
 class HammingDistanceTest {
 
-    // Valid Input Tests
     @Nested
     @DisplayName("Valid Input Tests")
     class ValidInputTests {
@@ -30,7 +24,6 @@ class ValidInputTests {
             "'10101', '10100', 1"
         })
         void testHammingDistance(String s1, String s2, int expected) {
-            // Assert that the calculated distance matches the expected result
             assertEquals(
                 expected,
                 HammingDistance.calculateHammingDistance(s1, s2),
@@ -39,15 +32,13 @@ void testHammingDistance(String s1, String s2, int expected) {
         }
     }
 
-    // Invalid Input Tests
     @Nested
     @DisplayName("Invalid Input Tests")
     class InvalidInputTests {
 
-        @ParameterizedTest(name = "Expect exception for null inputs: \"{0}\", \"{1}\"")
+        @ParameterizedTest(name = "Hamming distance should throw exception for null inputs: \"{0}\", \"{1}\"")
         @MethodSource("provideNullInputs")
         void testHammingDistanceWithNullInputs(String input1, String input2) {
-            // Check for IllegalArgumentException when inputs are null
             IllegalArgumentException exception = assertThrows(
                 IllegalArgumentException.class,
                 () -> HammingDistance.calculateHammingDistance(input1, input2),
@@ -56,7 +47,6 @@ void testHammingDistanceWithNullInputs(String input1, String input2) {
             assertEquals("Input strings cannot be null", exception.getMessage());
         }
 
-        // Provide null input test cases
         private static Stream<Arguments> provideNullInputs() {
             return Stream.of(
                 Arguments.of(null, "abc"),
@@ -68,7 +58,6 @@ private static Stream<Arguments> provideNullInputs() {
         @Test
         @DisplayName("Should throw exception for unequal string lengths")
         void testNotEqualStringLengths() {
-            // Check for IllegalArgumentException when string lengths are unequal
             IllegalArgumentException exception = assertThrows(
                 IllegalArgumentException.class,
                 () -> HammingDistance.calculateHammingDistance("ab", "abc"),