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IssueId #222311 feat: Writing Test Cases for LoginPage Component in ALL #104
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IssueId #222311 Writing Test Cases for LoginPage Component in ALL
ajinkyapandetekdi 56f2c4e
IssueId #222311 Writing Test Cases for LoginPage Component in ALL
ajinkyapandetekdi 28813cd
IssueId #222311 Writing Test Cases for LoginPage Component in ALL
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IssueId #222311 Writing Test Cases for LoginPage Component in ALL
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IssueId #222311 Writing Test Cases for LoginPage Component in ALL
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IssueId #222311 Writing Test Cases for LoginPage Component in ALL
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,193 @@ | ||
| import React from "react"; | ||
| import { render, fireEvent, screen, waitFor } from "@testing-library/react"; | ||
| import axios from "axios"; | ||
| import MockAdapter from "axios-mock-adapter"; | ||
| import { BrowserRouter } from "react-router-dom"; | ||
| import LoginPage from "./LoginPage"; | ||
| import config from "../../utils/urlConstants.json"; | ||
| import { useNavigate } from "react-router-dom"; | ||
|
|
||
| jest.spyOn(window, "alert").mockImplementation(() => {}); | ||
|
|
||
| jest.mock("react-router-dom", () => ({ | ||
| ...jest.requireActual("react-router-dom"), | ||
| useNavigate: jest.fn(), | ||
| })); | ||
|
|
||
| describe("LoginPage", () => { | ||
| let mockNavigate; | ||
| let mockAxios; | ||
|
|
||
| beforeEach(() => { | ||
| mockNavigate = jest.fn(); | ||
| useNavigate.mockReturnValue(mockNavigate); | ||
| mockAxios = new MockAdapter(axios); | ||
| }); | ||
|
|
||
| afterEach(() => { | ||
| mockAxios.reset(); | ||
| jest.clearAllMocks(); | ||
| }); | ||
|
|
||
| test("shows alert when fields are empty", () => { | ||
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|
||
| // Given the LoginPage is rendered | ||
| render( | ||
| <BrowserRouter> | ||
| <LoginPage /> | ||
| </BrowserRouter> | ||
| ); | ||
|
|
||
| // When the login button is clicked | ||
| fireEvent.click(screen.getByRole("button", { name: "Login" })); | ||
|
|
||
| // Then an alert should be shown indicating fields are empty | ||
| expect(window.alert).toHaveBeenCalledWith("Please fill in all fields"); | ||
| }); | ||
|
|
||
| test("navigates to /discover-start on successful login", async () => { | ||
| // Given the LoginPage is rendered | ||
| mockAxios | ||
| .onPost( | ||
| `${process.env.REACT_APP_VIRTUAL_ID_HOST}/${config.URLS.GET_VIRTUAL_ID}?username=testuser` | ||
| ) | ||
| .reply(200, { result: { virtualID: "12345" } }); | ||
|
|
||
| render( | ||
| <BrowserRouter> | ||
| <LoginPage /> | ||
| </BrowserRouter> | ||
| ); | ||
|
|
||
| // When the user enters a valid username and password and clicks login | ||
| fireEvent.change(screen.getByLabelText("Username"), { | ||
| target: { value: "testuser" }, | ||
| }); | ||
| fireEvent.change(screen.getByLabelText("Password"), { | ||
| target: { value: "testpassword" }, | ||
| }); | ||
| fireEvent.click(screen.getByRole("button", { name: "Login" })); | ||
|
|
||
| // Then localStorage should be set with the username and virtualId | ||
| await waitFor(() => | ||
| expect(localStorage.getItem("profileName")).toBe("testuser") | ||
| ); | ||
| await waitFor(() => | ||
| expect(localStorage.getItem("virtualId")).toBe("12345") | ||
| ); | ||
|
|
||
| // And the user should be navigated to /discover-start | ||
| expect(mockNavigate).toHaveBeenCalledWith("/discover-start"); | ||
| }); | ||
|
|
||
| test("displays entered username", () => { | ||
| // Given the LoginPage is rendered | ||
| render( | ||
| <BrowserRouter> | ||
| <LoginPage /> | ||
| </BrowserRouter> | ||
| ); | ||
|
|
||
| // When the user enters a username | ||
| const usernameInput = screen.getByLabelText("Username"); | ||
| fireEvent.change(usernameInput, { target: { value: "testuser" } }); | ||
|
|
||
| // Then the username input should display the entered value | ||
| expect(usernameInput.value).toBe("testuser"); | ||
| }); | ||
|
|
||
| test("displays entered password", () => { | ||
| // Given the LoginPage is rendered | ||
| render( | ||
| <BrowserRouter> | ||
| <LoginPage /> | ||
| </BrowserRouter> | ||
| ); | ||
|
|
||
| // When the user enters a password | ||
| const passwordInput = screen.getByLabelText("Password"); | ||
| fireEvent.change(passwordInput, { target: { value: "testpassword" } }); | ||
|
|
||
| // Then the password input should display the entered value | ||
| expect(passwordInput.value).toBe("testpassword"); | ||
| }); | ||
|
|
||
| test("shows alert on API error", async () => { | ||
| // Given the LoginPage is rendered | ||
| mockAxios | ||
| .onPost( | ||
| `${process.env.REACT_APP_VIRTUAL_ID_HOST}/${config.URLS.GET_VIRTUAL_ID}?username=testuser` | ||
| ) | ||
| .networkError(); | ||
|
|
||
| render( | ||
| <BrowserRouter> | ||
| <LoginPage /> | ||
| </BrowserRouter> | ||
| ); | ||
|
|
||
| // When the user enters a valid username and password and clicks login | ||
| fireEvent.change(screen.getByLabelText("Username"), { | ||
| target: { value: "testuser" }, | ||
| }); | ||
| fireEvent.change(screen.getByLabelText("Password"), { | ||
| target: { value: "testpassword" }, | ||
| }); | ||
| fireEvent.click(screen.getByRole("button", { name: "Login" })); | ||
|
|
||
| // Then an alert should be shown indicating an API error | ||
| await waitFor(() => | ||
| expect(window.alert).toHaveBeenCalledWith( | ||
| "An error occurred. Please try again later." | ||
| ) | ||
| ); | ||
| }); | ||
|
|
||
| test("Set localStorage on form submission", async () => { | ||
| // Given the LoginPage is rendered and localStorage has initial values | ||
| mockAxios | ||
| .onPost( | ||
| `${process.env.REACT_APP_VIRTUAL_ID_HOST}/${config.URLS.GET_VIRTUAL_ID}?username=testuser` | ||
| ) | ||
| .reply(200, { result: { virtualID: "12345" } }); | ||
|
|
||
| localStorage.setItem("profileName", "oldProfileName"); | ||
| localStorage.setItem("virtualId", "oldVirtualId"); | ||
|
|
||
| render( | ||
| <BrowserRouter> | ||
| <LoginPage /> | ||
| </BrowserRouter> | ||
| ); | ||
|
|
||
| // When the user enters a valid username and password and clicks login | ||
| fireEvent.change(screen.getByLabelText("Username"), { | ||
| target: { value: "testuser" }, | ||
| }); | ||
| fireEvent.change(screen.getByLabelText("Password"), { | ||
| target: { value: "testpassword" }, | ||
| }); | ||
| fireEvent.click(screen.getByRole("button", { name: "Login" })); | ||
|
|
||
| // Then localStorage should be updated with the new values | ||
| await waitFor(() => | ||
| expect(localStorage.getItem("profileName")).toBe("testuser") | ||
| ); | ||
| await waitFor(() => | ||
| expect(localStorage.getItem("virtualId")).toBe("12345") | ||
| ); | ||
| }); | ||
|
|
||
| test("renders form fields correctly", () => { | ||
| // Given the LoginPage is rendered | ||
| render( | ||
| <BrowserRouter> | ||
| <LoginPage /> | ||
| </BrowserRouter> | ||
| ); | ||
|
|
||
| // Then the username, password fields and login button should be in the document | ||
| expect(screen.getByLabelText("Username")).toBeInTheDocument(); | ||
| expect(screen.getByLabelText("Password")).toBeInTheDocument(); | ||
| expect(screen.getByRole("button", { name: "Login" })).toBeInTheDocument(); | ||
| }); | ||
| }); | ||
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why this is removed from dev dependencies?