Add cypress

.github/workflows/e2e.yml

@@ -0,0 +1,23 @@
+name: Test
+
+on:
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.issue.pull_request.url }}
+  cancel-in-progress: true
+
+jobs:
+  e2e:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Cypress run
+        uses: cypress-io/github-action@v6
+
+        with:
+          browser: "chrome"
+          build: npm run build
+          start: npm run start
+          wait-on: "http://localhost:3000"

cypress.config.ts

@@ -0,0 +1,9 @@
+import { defineConfig } from "cypress";
+
+export default defineConfig({
+  e2e: {
+    setupNodeEvents(on, config) {
+      // implement node event listeners here
+    },
+  },
+});

cypress/e2e/spec.cy.ts

@@ -0,0 +1,30 @@
+describe("spec", () => {
+  it("subscribes to a custom feed", () => {
+    cy.visit("http://localhost:3000");
+    cy.contains("New feed").click({ force: true });
+
+    cy.contains("Subscribe");
+    cy.get("#url").type("https://www.mikefrancis.dev/rss.xml");
+    cy.get("button").contains("Subscribe").click({ force: true });
+    cy.get("#feed-items li", { timeout: 10000 }).first().click({ force: true });
+  });
+
+  it("subscribes to a random feed", () => {
+    cy.visit("http://localhost:3000");
+    cy.contains("New feed").click({ force: true });
+
+    cy.contains("Subscribe");
+    cy.get("button").contains("Add random feed").click({ force: true });
+    cy.get("#feed-items li", { timeout: 10000 }).first().click({ force: true });
+  });
+
+  it("displays an error when trying to subscribe to an invalid feed", () => {
+    cy.visit("http://localhost:3000");
+    cy.contains("New feed").click({ force: true });
+
+    cy.contains("Subscribe");
+    cy.get("#url").type("lol");
+    cy.get("button").contains("Subscribe").click({ force: true });
+    cy.contains("Error", { timeout: 10000 });
+  });
+});

cypress/fixtures/example.json

@@ -0,0 +1,5 @@
+{
+  "name": "Using fixtures to represent data",
+  "email": "[email protected]",
+  "body": "Fixtures are a great way to mock data for responses to routes"
+}

cypress/support/commands.ts

@@ -0,0 +1,37 @@
+/// <reference types="cypress" />
+// ***********************************************
+// This example commands.ts shows you how to
+// create various custom commands and overwrite
+// existing commands.
+//
+// For more comprehensive examples of custom
+// commands please read more here:
+// https://on.cypress.io/custom-commands
+// ***********************************************
+//
+//
+// -- This is a parent command --
+// Cypress.Commands.add('login', (email, password) => { ... })
+//
+//
+// -- This is a child command --
+// Cypress.Commands.add('drag', { prevSubject: 'element'}, (subject, options) => { ... })
+//
+//
+// -- This is a dual command --
+// Cypress.Commands.add('dismiss', { prevSubject: 'optional'}, (subject, options) => { ... })
+//
+//
+// -- This will overwrite an existing command --
+// Cypress.Commands.overwrite('visit', (originalFn, url, options) => { ... })
+//
+// declare global {
+//   namespace Cypress {
+//     interface Chainable {
+//       login(email: string, password: string): Chainable<void>
+//       drag(subject: string, options?: Partial<TypeOptions>): Chainable<Element>
+//       dismiss(subject: string, options?: Partial<TypeOptions>): Chainable<Element>
+//       visit(originalFn: CommandOriginalFn, url: string, options: Partial<VisitOptions>): Chainable<Element>
+//     }
+//   }
+// }

cypress/support/e2e.ts

@@ -0,0 +1,20 @@
+// ***********************************************************
+// This example support/e2e.ts is processed and
+// loaded automatically before your test files.
+//
+// This is a great place to put global configuration and
+// behavior that modifies Cypress.
+//
+// You can change the location of this file or turn off
+// automatically serving support files with the
+// 'supportFile' configuration option.
+//
+// You can read more here:
+// https://on.cypress.io/configuration
+// ***********************************************************
+
+// Import commands.js using ES2015 syntax:
+import './commands'
+
+// Alternatively you can use CommonJS syntax:
+// require('./commands')