Adding test file for bitwise operators

core-java/src/main/java/com/baeldung/bitwiseoperator/BitwiseOperatorExample.java

@@ -1,56 +0,0 @@
-package com.baeldung.bitwiseoperator;
-
-public class BitwiseOperatorExample {
-
-    public static void main(String[] args) {
-
-        int value1 = 6;
-        int value2 = 5;
-
-        // Bitwise AND Operator
-        int result = value1 & value2;
-        System.out.println("result : " + result);
-
-        // Bitwise OR Operator
-        result = value1 | value2;
-        System.out.println("result : " + result);
-
-        // Bitwise Exclusive OR Operator
-        result = value1 ^ value2;
-        System.out.println("result : " + result);
-
-        // Bitwise NOT operator
-        result = ~value1;
-        System.out.println("result : " + result);
-
-        // Right Shift Operator with positive number
-        int value = 12;
-        int rightShift = value >> 2;
-        System.out.println("rightShift result with positive number : " + rightShift);
-
-        // Right Shift Operator with negative number
-        value = -12;
-        rightShift = value >> 2;
-        System.out.println("rightShift result with negative number : " + rightShift);
-
-        // Left Shift Operator with positive number
-        value = 1;
-        int leftShift = value << 1;
-        System.out.println("leftShift result with positive number : " + leftShift);
-
-        // Left Shift Operator with negative number
-        value = -12;
-        leftShift = value << 2;
-        System.out.println("leftShift result with negative number : " + leftShift);
-
-        // Unsigned Right Shift Operator with positive number
-        value = 12;
-        int unsignedRightShift = value >>> 2;
-        System.out.println("unsignedRightShift result with positive number : " + unsignedRightShift);
-
-        // Unsigned Right Shift Operator with negative number
-        value = -12;
-        unsignedRightShift = value >>> 2;
-        System.out.println("unsignedRightShift result with negative number : " + unsignedRightShift);
-    }
-}

core-java/src/test/java/com/baeldung/bitwiseoperator/test/BitwiseOperatorUnitTest.java

@@ -0,0 +1,81 @@
+package com.baeldung.bitwiseoperator.test;
+
+import org.junit.Assert;
+import org.junit.jupiter.api.Test;
+
+public class BitwiseOperatorUnitTest {
+
+    @Test
+    public void givenTwoIntegers_whenAndOperator_thenNewDecimalNumber() {
+        int value1 = 6;
+        int value2 = 5;
+        int result = value1 & value2;
+        Assert.assertEquals(result, 4);
+    }
+
+    @Test
+    public void givenTwoIntegers_whenOrOperator_thenNewDecimalNumber() {
+        int value1 = 6;
+        int value2 = 5;
+        int result = value1 | value2;
+        Assert.assertEquals(result, 7);
+    }
+
+    @Test
+    public void givenTwoIntegers_whenXorOperator_thenNewDecimalNumber() {
+        int value1 = 6;
+        int value2 = 5;
+        int result = value1 ^ value2;
+        Assert.assertEquals(result, 3);
+    }
+
+    @Test
+    public void givenOneInteger_whenNotOperator_thenNewDecimalNumber() {
+        int value1 = 6;
+        int result = ~value1;
+        Assert.assertEquals(result, -7);
+    }
+
+    @Test
+    public void givenOnePositiveInteger_whenSignedRightShiftOperator_thenNewDecimalNumber() {
+        int value = 12;
+        int rightShift = value >> 2;
+        Assert.assertEquals(rightShift, 3);
+    }
+
+    @Test
+    public void givenOneNegativeInteger_whenSignedRightShiftOperator_thenNewDecimalNumber() {
+        int value = -12;
+        int rightShift = value >> 2;
+        Assert.assertEquals(rightShift, -3);
+    }
+
+    @Test
+    public void givenOnePositiveInteger_whenLeftShiftOperator_thenNewDecimalNumber() {
+        int value = 12;
+        int leftShift = value << 2;
+        Assert.assertEquals(leftShift, 48);
+    }
+
+    @Test
+    public void givenOneNegativeInteger_whenLeftShiftOperator_thenNewDecimalNumber() {
+        int value = -12;
+        int leftShift = value << 2;
+        Assert.assertEquals(leftShift, -48);
+    }
+
+    @Test
+    public void givenOnePositiveInteger_whenUnsignedRightShiftOperator_thenNewDecimalNumber() {
+        int value = 12;
+        int unsignedRightShift = value >>> 2;
+        Assert.assertEquals(unsignedRightShift, 3);
+    }
+
+    @Test
+    public void givenOneNegativeInteger_whenUnsignedRightShiftOperator_thenNewDecimalNumber() {
+        int value = -12;
+        int unsignedRightShift = value >>> 2;
+        Assert.assertEquals(unsignedRightShift, 1073741821);
+    }
+
+}