fixed the test for given an array as input return false.

Author: ahmadehsas

Sprint-2/implement/contains.test.js

@@ -48,3 +48,7 @@ test("contains on an array returns false", () => {
 test("contains on an array of length returns true", () => {
   expect(contains([1, 2, 3, 4], "length")).toBe(true);
 }); // the test returns true because 'length' is a property of the array object
+
+test("contains given on array as input return false", () => {
+  expect(contains([1, 2, 3], "a")).toBe(false);
+});