feat(contains): add a more exhaustive test for reference in the object

Author: nik-rev

14_contains/solution/contains-solution.spec.js

@@ -1,6 +1,7 @@
 const contains = require("./contains-solution");
 
 describe("contains", () => {
+  const meaningOfLifeArray = [42]
   const object = {
     data: {
       duplicate: "e",
@@ -9,7 +10,7 @@ describe("contains", () => {
           banana: NaN,
           moreStuff: {
             something: "foo",
-            answer: [42],
+            answer: meaningOfLifeArray,
           },
         },
       },
@@ -41,10 +42,14 @@ describe("contains", () => {
     expect(contains(object, "e")).toBe(true);
   });
 
-  test("false if the provided value exists but is not a primitive", () => {
+  test("false if the provided array has the same structure as an array within the object, however the reference is not the same", () => {
     expect(contains(object, [42])).toBe(false);
   });
 
+  test("true if the provided array is a reference to an array that exists within the object", () => {
+    expect(contains(object, meaningOfLifeArray)).toBe(true);
+  });
+
   test("true if NaN is a value within the object", () => {
     expect(contains(object, NaN)).toBe(true);
   });