diff --git a/core-java-modules/core-java-numbers-10/src/test/java/com/baeldung/samesign/SameSignIntegersUnitTest.java b/core-java-modules/core-java-numbers-10/src/test/java/com/baeldung/samesign/SameSignIntegersUnitTest.java
new file mode 100644
index 000000000000..14ee9245d259
--- /dev/null
+++ b/core-java-modules/core-java-numbers-10/src/test/java/com/baeldung/samesign/SameSignIntegersUnitTest.java
@@ -0,0 +1,88 @@
+package com.baeldung.samesign;
+
+import org.junit.Test;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+public class SameSignIntegersUnitTest {
+
+    @Test
+    public void givenTwoPositiveNumbers_whenUsingConditionalChecks_thenReturnTrue() {
+        int a = 5;
+        int b = 3;
+        
+        boolean sameSign = (a >= 0 && b >= 0) || (a < 0 && b < 0);
+        
+        assertTrue(sameSign);
+    }
+
+    @Test
+    public void givenPositiveAndNegativeNumbers_whenUsingConditionalChecks_thenReturnFalse() {
+        int a = 5;
+        int b = -3;
+        
+        boolean sameSign = (a >= 0 && b >= 0) || (a < 0 && b < 0);
+        
+        assertFalse(sameSign);
+    }
+
+    @Test
+    public void givenTwoNegativeNumbers_whenUsingMultiplication_thenReturnTrue() {
+        int a = -5;
+        int b = -3;
+        
+        boolean sameSign = (a * b) > 0;
+        
+        assertTrue(sameSign);
+    }
+
+    @Test
+    public void givenZeroAndAnyNumber_whenUsingMultiplication_thenReturnFalse() {
+        int a = 0;
+        int b = 5;
+        
+        boolean sameSign = (a * b) > 0;
+        
+        assertFalse(sameSign);
+    }
+
+    @Test
+    public void givenTwoPositiveNumbers_whenUsingBitwiseXOR_thenReturnTrue() {
+        int a = 5;
+        int b = 3;
+        
+        boolean sameSign = (a ^ b) >= 0;
+        
+        assertTrue(sameSign);
+    }
+
+    @Test
+    public void givenPositiveAndNegativeNumbers_whenUsingBitwiseXOR_thenReturnFalse() {
+        int a = 5;
+        int b = -3;
+        
+        boolean sameSign = (a ^ b) >= 0;
+        
+        assertFalse(sameSign);
+    }
+
+    @Test
+    public void givenTwoNegativeNumbers_whenUsingMathSignum_thenReturnTrue() {
+        int a = -5;
+        int b = -3;
+        
+        boolean sameSign = Math.signum(a) == Math.signum(b);
+        
+        assertTrue(sameSign);
+    }
+
+    @Test
+    public void givenZeroAndPositiveNumber_whenUsingMathSignum_thenReturnFalse() {
+        int a = 0;
+        int b = 5;
+        
+        boolean sameSign = Math.signum(a) == Math.signum(b);
+        
+        assertFalse(sameSign);
+    }
+}