diff --git a/Bit-Manipulation/test/FlipBitTest.js b/Bit-Manipulation/test/FlipBitTest.js
new file mode 100644
index 0000000000..30da41549b
--- /dev/null
+++ b/Bit-Manipulation/test/FlipBitTest.js
@@ -0,0 +1,21 @@
+import { FlipBit } from '../SetBit'
+
+test('Flip bit number 0 in 1:', () => {
+  const setBitPos = setBit(1, 0)
+  expect(setBitPos).toBe(0)
+})
+
+test('Flip bit number 0 in 2:', () => {
+  const setBitPos = setBit(2, 0)
+  expect(setBitPos).toBe(3)
+})
+
+test('Flip bit number 1 in 10:', () => {
+  const setBitPos = setBit(10, 1)
+  expect(setBitPos).toBe(8)
+})
+
+test('Flip bit number 2 in 10:', () => {
+  const setBitPos = setBit(10, 2)
+  expect(setBitPos).toBe(14)
+})