Changes made as per the review

Author: dcostaprakash

Sprint-1/implement/dedupe.test.js

@@ -23,9 +23,11 @@ test("given an empty array, it returns an empty array", () => {
 // Given an array with no duplicates
 // When passed to the dedupe function
 // Then it should return a copy of the original array
-test("returns original array if there are no duplicates", () => {
-  expect(dedupe([10, 45, 85, 20])).toEqual([10, 45, 85, 20]);
-  expect(dedupe(["hello", "a", "hi", "b"])).toEqual(["hello", "a", "hi", "b"]);
+test("returns copy of the original array if there are no duplicates", () => {
+  const input = [10, 45, 85, 20];
+  const result = dedupe(input);
+  expect(result).toEqual(input);
+  expect(result).not.toBe(input);
 });
 
 // Given an array with strings or numbers

Sprint-1/implement/max.test.js

@@ -51,8 +51,8 @@ test("returns the largest decimal number", () => {
 // Given an array with non-number values
 // When passed to the max function
 // Then it should return the max and ignore non-numeric values
-test("returnes max and ignores non numeric values", () => {
-  expect(findMax(["stay", 3, "quiet", -32, 5])).toBe(5);
+test("returns max and ignores non number values", () => {
+  expect(findMax(["stay", "300", "quiet", -32, 5])).toBe(5);
 });
 
 // Given an array with only non-number values

Sprint-1/implement/sum.test.js

@@ -34,7 +34,7 @@ test("given an array with negative numbers, returns correct sum", () => {
 // When passed to the sum function
 // Then it should return the correct total sum
 test("given an array with decimal/float numbers, returns correct sum", () => {
-  expect(sum([2.8, 4.2, 7.7])).toBe(14.7);
+  expect(sum([2.8, 4.2, 7.7])).toBeCloseTo(14.7);
 });
 // Given an array containing non-number values
 // When passed to the sum function