diff --git a/__tests__/Login.test.tsx b/__tests__/Login.test.tsx new file mode 100644 index 00000000..8b0b45c3 --- /dev/null +++ b/__tests__/Login.test.tsx @@ -0,0 +1,157 @@ +import React from 'react'; +import { render, fireEvent, waitFor, screen } from '@testing-library/react'; +import LoginPage from '../src/pages/login'; +import { useRouter } from 'next/router'; +import { login } from '../src/services/LoginService'; +import { getUserId } from '../src/services/ProfileService'; +import { showToastMessage } from '@/components/Toastify'; +import { serverSideTranslations } from 'next-i18next/serverSideTranslations'; + +// Mock necessary modules +jest.mock('next/router', () => ({ + useRouter: jest.fn(), +})); +jest.mock('../src/services/LoginService', () => ({ + login: jest.fn(), +})); +jest.mock('../src/services/ProfileService', () => ({ + getUserId: jest.fn(), +})); +jest.mock('@/components/Toastify', () => ({ + showToastMessage: jest.fn(), +})); +jest.mock('next-i18next/serverSideTranslations', () => ({ + serverSideTranslations: jest.fn().mockResolvedValue({}), +})); + +describe('LoginPage', () => { + const mockedUseRouter = useRouter as jest.Mock; + const mockedLogin = login as jest.Mock; + const mockedGetUserId = getUserId as jest.Mock; + const mockedShowToastMessage = showToastMessage as jest.Mock; + + beforeEach(() => { + mockedUseRouter.mockReturnValue({ + push: jest.fn(), + }); + }); + + afterEach(() => { + jest.clearAllMocks(); + }); + + fit('should render the login page correctly', () => { + render(); + + expect(screen.getByLabelText(/LOGIN_PAGE.USERNAME/i)).toBeInTheDocument(); + expect(screen.getByLabelText(/LOGIN_PAGE.PASSWORD/i)).toBeInTheDocument(); + expect(screen.getByText(/LOGIN_PAGE.LOGIN/i)).toBeInTheDocument(); + }); + + it('should handle username change and error state', () => { + render(); + + const usernameInput = screen.getByLabelText(/username/i); + fireEvent.change(usernameInput, { target: { value: 'test user' } }); + + expect(usernameInput).toHaveValue('testuser'); // Username is trimmed and no spaces are allowed + expect(screen.getByText(/login/i)).toBeDisabled(); + }); + + it('should handle password change', () => { + render(); + + const passwordInput = screen.getByLabelText(/password/i); + fireEvent.change(passwordInput, { target: { value: 'password123' } }); + + expect(passwordInput).toHaveValue('password123'); + }); + + it('should toggle password visibility', () => { + render(); + + const toggleButton = screen.getByLabelText(/toggle password visibility/i); + const passwordInput = screen.getByLabelText(/password/i); + + fireEvent.click(toggleButton); + expect(passwordInput).toHaveAttribute('type', 'text'); + + fireEvent.click(toggleButton); + expect(passwordInput).toHaveAttribute('type', 'password'); + }); + + it('should handle form submission successfully', async () => { + mockedLogin.mockResolvedValue({ + result: { + access_token: 'mocked_access_token', + refresh_token: 'mocked_refresh_token', + }, + }); + mockedGetUserId.mockResolvedValue({ userId: 'mocked_user_id' }); + + render(); + + const usernameInput = screen.getByLabelText(/username/i); + const passwordInput = screen.getByLabelText(/password/i); + const loginButton = screen.getByText(/login/i); + + fireEvent.change(usernameInput, { target: { value: 'testuser' } }); + fireEvent.change(passwordInput, { target: { value: 'password123' } }); + fireEvent.click(loginButton); + + await waitFor(() => { + expect(mockedLogin).toHaveBeenCalledWith({ + username: 'testuser', + password: 'password123', + }); + expect(mockedGetUserId).toHaveBeenCalled(); + }); + + const router = useRouter(); + expect(router.push).toHaveBeenCalledWith('/dashboard'); + }); + + it('should handle form submission with errors', async () => { + mockedLogin.mockRejectedValue({ response: { status: 404 } }); + + render(); + + const usernameInput = screen.getByLabelText(/username/i); + const passwordInput = screen.getByLabelText(/password/i); + const loginButton = screen.getByText(/login/i); + + fireEvent.change(usernameInput, { target: { value: 'testuser' } }); + fireEvent.change(passwordInput, { target: { value: 'password123' } }); + fireEvent.click(loginButton); + + await waitFor(() => { + expect(mockedShowToastMessage).toHaveBeenCalledWith( + 'LOGIN_PAGE.USERNAME_PASSWORD_NOT_CORRECT', + 'error' + ); + }); + + expect(screen.getByText(/login/i)).not.toBeDisabled(); + }); + + it('should handle language change', () => { + render(); + + const selectLanguage = screen.getByDisplayValue('en'); + fireEvent.change(selectLanguage, { target: { value: 'fr' } }); + + expect(localStorage.getItem('preferredLanguage')).toBe('fr'); + }); + + it('should handle "remember me" checkbox click', () => { + render(); + + const rememberMeCheckbox = screen.getByRole('checkbox'); + fireEvent.click(rememberMeCheckbox); + + expect(rememberMeCheckbox).toBeChecked(); + + fireEvent.click(rememberMeCheckbox); + expect(rememberMeCheckbox).not.toBeChecked(); + }); +}); diff --git a/cypress.config.ts b/cypress.config.ts new file mode 100644 index 00000000..17161e32 --- /dev/null +++ b/cypress.config.ts @@ -0,0 +1,9 @@ +import { defineConfig } from "cypress"; + +export default defineConfig({ + e2e: { + setupNodeEvents(on, config) { + // implement node event listeners here + }, + }, +}); diff --git a/cypress/e2e/1-getting-started/todo.cy.js b/cypress/e2e/1-getting-started/todo.cy.js new file mode 100644 index 00000000..4768ff92 --- /dev/null +++ b/cypress/e2e/1-getting-started/todo.cy.js @@ -0,0 +1,143 @@ +/// + +// Welcome to Cypress! +// +// This spec file contains a variety of sample tests +// for a todo list app that are designed to demonstrate +// the power of writing tests in Cypress. +// +// To learn more about how Cypress works and +// what makes it such an awesome testing tool, +// please read our getting started guide: +// https://on.cypress.io/introduction-to-cypress + +describe('example to-do app', () => { + beforeEach(() => { + // Cypress starts out with a blank slate for each test + // so we must tell it to visit our website with the `cy.visit()` command. + // Since we want to visit the same URL at the start of all our tests, + // we include it in our beforeEach function so that it runs before each test + cy.visit('https://example.cypress.io/todo') + }) + + it('displays two todo items by default', () => { + // We use the `cy.get()` command to get all elements that match the selector. + // Then, we use `should` to assert that there are two matched items, + // which are the two default items. + cy.get('.todo-list li').should('have.length', 2) + + // We can go even further and check that the default todos each contain + // the correct text. We use the `first` and `last` functions + // to get just the first and last matched elements individually, + // and then perform an assertion with `should`. + cy.get('.todo-list li').first().should('have.text', 'Pay electric bill') + cy.get('.todo-list li').last().should('have.text', 'Walk the dog') + }) + + it('can add new todo items', () => { + // We'll store our item text in a variable so we can reuse it + const newItem = 'Feed the cat' + + // Let's get the input element and use the `type` command to + // input our new list item. After typing the content of our item, + // we need to type the enter key as well in order to submit the input. + // This input has a data-test attribute so we'll use that to select the + // element in accordance with best practices: + // https://on.cypress.io/selecting-elements + cy.get('[data-test=new-todo]').type(`${newItem}{enter}`) + + // Now that we've typed our new item, let's check that it actually was added to the list. + // Since it's the newest item, it should exist as the last element in the list. + // In addition, with the two default items, we should have a total of 3 elements in the list. + // Since assertions yield the element that was asserted on, + // we can chain both of these assertions together into a single statement. + cy.get('.todo-list li') + .should('have.length', 3) + .last() + .should('have.text', newItem) + }) + + it('can check off an item as completed', () => { + // In addition to using the `get` command to get an element by selector, + // we can also use the `contains` command to get an element by its contents. + // However, this will yield the