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Refactor e2e test infrastruction to allow easier way to lookup REST API info and generate CSRF tokens

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This commit is contained in:
Tim Donohue
2023-09-01 11:29:05 -05:00
parent 5dad8bec39
commit a581219df5
3 changed files with 139 additions and 113 deletions
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24
cypress/plugins/index.ts
View File

@@ -1,5 +1,11 @@
const fs = require('fs');
// These two global variables are used to store information about the REST API used
// by these e2e tests. They are filled out prior to running any tests in the before()
// method of e2e.ts. They can then be accessed by any tests via the getters below.
let REST_BASE_URL: string;
let REST_DOMAIN: string;
// Plugins enable you to tap into, modify, or extend the internal behavior of Cypress
// For more info, visit https://on.cypress.io/plugins-api
module.exports = (on, config) => {
@@ -30,6 +36,24 @@ module.exports = (on, config) => {
}
return null;
},
// Save value of REST Base URL, looked up before all tests.
// This allows other tests to use it easily via getRestBaseURL() below.
saveRestBaseURL(url: string) {
return (REST_BASE_URL = url);
},
// Retrieve currently saved value of REST Base URL
getRestBaseURL() {
return REST_BASE_URL ;
},
// Save value of REST Domain, looked up before all tests.
// This allows other tests to use it easily via getRestBaseDomain() below.
saveRestBaseDomain(domain: string) {
return (REST_DOMAIN = domain);
},
// Retrieve currently saved value of REST Domain
getRestBaseDomain() {
return REST_DOMAIN ;
}
});
};

109
cypress/support/commands.ts
View File

@@ -5,11 +5,7 @@
import { AuthTokenInfo, TOKENITEM } from 'src/app/core/auth/models/auth-token-info.model';
import { DSPACE_XSRF_COOKIE, XSRF_REQUEST_HEADER } from 'src/app/core/xsrf/xsrf.constants';
// NOTE: FALLBACK_TEST_REST_BASE_URL is only used if Cypress cannot read the REST API BaseURL
// from the Angular UI's config.json. See 'login()'.
export const FALLBACK_TEST_REST_BASE_URL = 'http://localhost:8080/server';
export const FALLBACK_TEST_REST_DOMAIN = 'localhost';
import { v4 as uuidv4 } from 'uuid';
// Declare Cypress namespace to help with Intellisense & code completion in IDEs
// ALL custom commands MUST be listed here for code completion to work
@@ -41,6 +37,13 @@ declare global {
* @param dsoType type of DSpace Object (e.g. "item", "collection", "community")
*/
generateViewEvent(uuid: string, dsoType: string): typeof generateViewEvent;
/**
* Create a new CSRF token and add to required Cookie. CSRF Token is returned
* in chainable in order to allow it to be sent also in required CSRF header.
* @returns Chainable reference to allow CSRF token to also be sent in header.
*/
createCSRFCookie(): Chainable<any>;
}
}
}
@@ -54,35 +57,10 @@ declare global {
* @param password password to login as
*/
function login(email: string, password: string): void {
// Cypress doesn't have access to the running application in Node.js.
// So, it's not possible to inject or load the AppConfig or environment of the Angular UI.
// Instead, we'll read our running application's config.json, which contains the configs &
// is regenerated at runtime each time the Angular UI application starts up.
cy.task('readUIConfig').then((str: string) => {
// Parse config into a JSON object
const config = JSON.parse(str);
// Find the URL of our REST API. Have a fallback ready, just in case 'rest.baseUrl' cannot be found.
let baseRestUrl = FALLBACK_TEST_REST_BASE_URL;
if (!config.rest.baseUrl) {
console.warn("Could not load 'rest.baseUrl' from config.json. Falling back to " + FALLBACK_TEST_REST_BASE_URL);
} else {
//console.log("Found 'rest.baseUrl' in config.json. Using this REST API for login: ".concat(config.rest.baseUrl));
baseRestUrl = config.rest.baseUrl;
}
// Now find domain of our REST API, again with a fallback.
let baseDomain = FALLBACK_TEST_REST_DOMAIN;
if (!config.rest.host) {
console.warn("Could not load 'rest.host' from config.json. Falling back to " + FALLBACK_TEST_REST_DOMAIN);
} else {
baseDomain = config.rest.host;
}
// Create a fake CSRF Token. Set it in the required server-side cookie
const csrfToken = 'fakeLoginCSRFToken';
cy.setCookie(DSPACE_XSRF_COOKIE, csrfToken, { 'domain': baseDomain });
// Create a fake CSRF cookie/token to use in POST
cy.createCSRFCookie().then((csrfToken: string) => {
// get our REST API's base URL, also needed for POST
cy.task('getRestBaseURL').then((baseRestUrl: string) => {
// Now, send login POST request including that CSRF token
cy.request({
method: 'POST',
@@ -104,9 +82,7 @@ function login(email: string, password: string): void {
// This ensures the UI will recognize we are logged in on next "visit()"
cy.setCookie(TOKENITEM, JSON.stringify(authinfo));
});
// Remove cookie with fake CSRF token, as it's no longer needed
cy.clearCookie(DSPACE_XSRF_COOKIE);
});
});
}
// Add as a Cypress command (i.e. assign to 'cy.login')
@@ -141,34 +117,10 @@ Cypress.Commands.add('loginViaForm', loginViaForm);
* @param dsoType type of DSpace Object (e.g. "item", "collection", "community")
*/
function generateViewEvent(uuid: string, dsoType: string): void {
// Cypress doesn't have access to the running application in Node.js.
// So, it's not possible to inject or load the AppConfig or environment of the Angular UI.
// Instead, we'll read our running application's config.json, which contains the configs &
// is regenerated at runtime each time the Angular UI application starts up.
cy.task('readUIConfig').then((str: string) => {
// Parse config into a JSON object
const config = JSON.parse(str);
// Find the URL of our REST API. Have a fallback ready, just in case 'rest.baseUrl' cannot be found.
let baseRestUrl = FALLBACK_TEST_REST_BASE_URL;
if (!config.rest.baseUrl) {
console.warn("Could not load 'rest.baseUrl' from config.json. Falling back to " + FALLBACK_TEST_REST_BASE_URL);
} else {
baseRestUrl = config.rest.baseUrl;
}
// Now find domain of our REST API, again with a fallback.
let baseDomain = FALLBACK_TEST_REST_DOMAIN;
if (!config.rest.host) {
console.warn("Could not load 'rest.host' from config.json. Falling back to " + FALLBACK_TEST_REST_DOMAIN);
} else {
baseDomain = config.rest.host;
}
// Create a fake CSRF Token. Set it in the required server-side cookie
const csrfToken = 'fakeGenerateViewEventCSRFToken';
cy.setCookie(DSPACE_XSRF_COOKIE, csrfToken, { 'domain': baseDomain });
// Create a fake CSRF cookie/token to use in POST
cy.createCSRFCookie().then((csrfToken: string) => {
// get our REST API's base URL, also needed for POST
cy.task('getRestBaseURL').then((baseRestUrl: string) => {
// Now, send 'statistics/viewevents' POST request including that fake CSRF token in required header
cy.request({
method: 'POST',
@@ -186,11 +138,32 @@ function generateViewEvent(uuid: string, dsoType: string): void {
// We expect a 201 (which means statistics event was created)
expect(resp.status).to.eq(201);
});
// Remove cookie with fake CSRF token, as it's no longer needed
cy.clearCookie(DSPACE_XSRF_COOKIE);
});
});
}
// Add as a Cypress command (i.e. assign to 'cy.generateViewEvent')
Cypress.Commands.add('generateViewEvent', generateViewEvent);
/**
* Can be used by tests to generate a random XSRF/CSRF token and save it to
* the required XSRF/CSRF cookie for usage when sending POST requests or similar.
* The generated CSRF token is returned in a Chainable to allow it to be also sent
* in the CSRF HTTP Header.
* @returns a Cypress Chainable which can be used to get the generated CSRF Token
*/
function createCSRFCookie(): Cypress.Chainable {
// Generate a new token which is a random UUID
const csrfToken: string = uuidv4();
// Save it to our required cookie
cy.task('getRestBaseDomain').then((baseDomain: string) => {
// Create a fake CSRF Token. Set it in the required server-side cookie
cy.setCookie(DSPACE_XSRF_COOKIE, csrfToken, { 'domain': baseDomain });
});
// return the generated token wrapped in a chainable
return cy.wrap(csrfToken);
}
// Add as a Cypress command (i.e. assign to 'cy.createCSRFCookie')
Cypress.Commands.add('createCSRFCookie', createCSRFCookie);

49
cypress/support/e2e.ts
View File

@@ -19,23 +19,49 @@ import './commands';
// Import Cypress Axe tools for all tests
// https://github.com/component-driven/cypress-axe
import 'cypress-axe';
import { DSPACE_XSRF_COOKIE } from 'src/app/core/xsrf/xsrf.constants';
// Runs once before all tests
before(() => {
// Cypress doesn't have access to the running application in Node.js.
// So, it's not possible to inject or load the AppConfig or environment of the Angular UI.
// Instead, we'll read our running application's config.json, which contains the configs &
// is regenerated at runtime each time the Angular UI application starts up.
cy.task('readUIConfig').then((str: string) => {
// Parse config into a JSON object
const config = JSON.parse(str);
// Find URL of our REST API & save to global variable via task
let baseRestUrl = FALLBACK_TEST_REST_BASE_URL;
if (!config.rest.baseUrl) {
console.warn("Could not load 'rest.baseUrl' from config.json. Falling back to " + FALLBACK_TEST_REST_BASE_URL);
} else {
baseRestUrl = config.rest.baseUrl;
}
cy.task('saveRestBaseURL', baseRestUrl);
// Find domain of our REST API & save to global variable via task.
let baseDomain = FALLBACK_TEST_REST_DOMAIN;
if (!config.rest.host) {
console.warn("Could not load 'rest.host' from config.json. Falling back to " + FALLBACK_TEST_REST_DOMAIN);
} else {
baseDomain = config.rest.host;
}
cy.task('saveRestBaseDomain', baseDomain);
});
});
// Runs once before the first test in each "block"
beforeEach(() => {
// Pre-agree to all Klaro cookies by setting the klaro-anonymous cookie
// This just ensures it doesn't get in the way of matching other objects in the page.
cy.setCookie('klaro-anonymous', '{%22authentication%22:true%2C%22preferences%22:true%2C%22acknowledgement%22:true%2C%22google-analytics%22:true%2C%22google-recaptcha%22:true}');
});
// For better stability between tests, we visit "about:blank" (i.e. blank page) after each test.
// This ensures any remaining/outstanding XHR requests are killed, so they don't affect the next test.
// Borrowed from: https://glebbahmutov.com/blog/visit-blank-page-between-tests/
/*afterEach(() => {
cy.window().then((win) => {
win.location.href = 'about:blank';
// Remove any CSRF cookies saved from prior tests
cy.clearCookie(DSPACE_XSRF_COOKIE);
});
});*/
// Global constants used in tests
// May be overridden in our cypress.json config file using specified environment variables.
@@ -57,7 +83,10 @@ export const TEST_SUBMIT_COLLECTION_NAME = Cypress.env('DSPACE_TEST_SUBMIT_COLLE
export const TEST_SUBMIT_COLLECTION_UUID = Cypress.env('DSPACE_TEST_SUBMIT_COLLECTION_UUID') || '9d8334e9-25d3-4a67-9cea-3dffdef80144';
export const TEST_SUBMIT_USER = Cypress.env('DSPACE_TEST_SUBMIT_USER') || 'dspacedemo+submit@gmail.com';
export const TEST_SUBMIT_USER_PASSWORD = Cypress.env('DSPACE_TEST_SUBMIT_USER_PASSWORD') || 'dspace';
// NOTE: FALLBACK_TEST_REST_BASE_URL is only used if Cypress cannot read the REST API BaseURL
// from the Angular UI's config.json. See 'before()' above.
const FALLBACK_TEST_REST_BASE_URL = 'http://localhost:8080/server';
const FALLBACK_TEST_REST_DOMAIN = 'localhost';
// USEFUL REGEX for testing