hsncaptcha/test/test.js

An NPM package to generate captcha images that can be used in Discord bots or various other projects

"use strict";
const assert = require("assert");
const Canvas = require("canvas");
const Captcha = require("../");

describe("src/index.ts", function () {
	describe("Captcha", function () {
		it("should export function 'captcha'", function () {
			assert.strictEqual(typeof Captcha, "function");
		});

		const captcha = new Captcha();
		describe("captcha", function () {
			it("should export an object", function () {
				assert.strictEqual(typeof captcha, "object");
			});

			describe("value", function () {
				it("should be a string", function () {
					assert.strictEqual(typeof captcha.value, "string");
				});
				it("should be 6 characters long", function () {
					assert.strictEqual(captcha.value.length, 6);
				});
				it("should only contain letters", function () {
					assert.match(captcha.value, /^[a-z]+$/i);
				});
			});

			describe("PNGStream", function () {
				it("should be an instance of canvas PNG Stream", function () {
					assert.strictEqual(captcha.PNGStream instanceof Canvas.PNGStream, true);
				});
			});

			describe("JPEGStream", function () {
				it("should be an instance of canvas JPEG Stream", function () {
					assert.strictEqual(captcha.JPEGStream instanceof Canvas.JPEGStream, true);
				});
			});

			describe("dataURL", function () {
				it("should be a string", function () {
					assert.strictEqual(typeof captcha.dataURL, "string");
				});
			});
		});
	});
});

const fs = require("fs");
const path = require("path");
require("../examples/writeToFiles");
describe("examples/writeToFiles.js", function () {
	const files = fs
		.readdirSync(path.join(__dirname, "..", "examples"))
		.filter(f => ["png", "jpeg"].includes(f.split(".")[1]));
	it("should create a new PNG file", function () {
		assert.strictEqual(Boolean(files.filter(f => f.endsWith(".png")).length), true);
	});
	it("should create a new JPEG file", function () {
		assert.strictEqual(Boolean(files.filter(f => f.endsWith(".jpeg")).length), true);
	});
	for (const file of files) {
		fs.unlinkSync(path.join(__dirname, "..", "examples", file));
	}
});