Enhance docs, add more tests in ReverseBits (#5859)

src/test/java/com/thealgorithms/bitmanipulation/ReverseBitsTest.java

@@ -2,14 +2,40 @@ package com.thealgorithms.bitmanipulation;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
-import org.junit.jupiter.api.Test;
+import java.util.stream.Stream;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
 
 class ReverseBitsTest {
 
-    @Test
-    void testReverseBits() {
-        assertEquals(0, ReverseBits.reverseBits(0));
-        assertEquals(-1, ReverseBits.reverseBits(-1));
-        assertEquals(964176192, ReverseBits.reverseBits(43261596));
+    @ParameterizedTest
+    @MethodSource("provideTestCases")
+    void testReverseBits(int input, int expected) {
+        assertEquals(expected, ReverseBits.reverseBits(input));
+    }
+
+    private static Stream<Arguments> provideTestCases() {
+        return Stream.of(
+            // Edge case: All bits are 0
+            Arguments.of(0, 0),
+
+            // Edge case: All bits are 1 (Two’s complement representation of -1)
+            Arguments.of(-1, -1),
+
+            // Case with random number 43261596
+            Arguments.of(43261596, 964176192),
+
+            // Case with maximum positive value for 32-bit integer
+            Arguments.of(Integer.MAX_VALUE, -2),
+
+            // Case with minimum value (all bits 1 except the sign bit)
+            Arguments.of(Integer.MIN_VALUE, 1),
+
+            // Case with a single bit set (2^0 = 1)
+            Arguments.of(1, Integer.MIN_VALUE),
+
+            // Case with alternating bits: 0b101010...10 (in binary)
+            Arguments.of(0xAAAAAAAA, 0x55555555));
     }
 }