Add unit tests

Author: noahwillcrow

src/functions/ReverseArray.spec.ts

@@ -0,0 +1,34 @@
+/* eslint-disable @typescript-eslint/no-non-null-assertion */
+/* eslint-disable @typescript-eslint/consistent-type-assertions */
+/// <reference types="@rbxts/testez/globals" />
+
+import { reverseArray } from "./ReverseArray";
+
+export = () => {
+	it("should return an empty array for an empty array input", () => {
+		const inputArray = new Array<defined>();
+		const result = reverseArray(inputArray);
+		expect(result.size()).to.equal(0);
+	});
+
+	it("should return an array of the same one item for a single element array input", () => {
+		const inputArray = [1];
+		const result = reverseArray(inputArray);
+		expect(result.size()).to.equal(1);
+		expect(result[0]).to.equal(inputArray[0]);
+	});
+
+	it("should return a reversed array for an array of length > 1", () => {
+		const inputArray = [0];
+		for (let i = 1; i <= 25; i++) {
+			inputArray.push(i);
+
+			const result = reverseArray(inputArray);
+			expect(result.size()).to.equal(inputArray.size());
+
+			for (let j = i; j >= 0; j--) {
+				expect(result[i - j]).to.equal(inputArray[j]);
+			}
+		}
+	});
+};