Merge pull request #2648 from cdr/e2e-test-go-home

feat(testing): add e2e test for 'Go Home' button

Author: jsjoeio

.github/workflows/ci.yaml

@@ -24,6 +24,9 @@ jobs:
   test:
     needs: linux-amd64
     runs-on: ubuntu-latest
+    env:
+      PASSWORD: e45432jklfdsab
+      CODE_SERVER_ADDRESS: http://localhost:8080
     steps:
       - uses: actions/checkout@v1
       - name: Download release packages
@@ -37,9 +40,14 @@ jobs:
       - uses: microsoft/playwright-github-action@v1
       - name: Install dependencies and run tests
         run: |
-          node ./release-packages/code-server*-linux-amd64 &
+          ./release-packages/code-server*-linux-amd64/bin/code-server --home $CODE_SERVER_ADDRESS/healthz &
           yarn --frozen-lockfile
           yarn test
+      - name: Upload test artifacts
+        uses: actions/upload-artifact@v2
+        with:
+          name: test-videos
+          path: ./test/videos
 
   release:
     runs-on: ubuntu-latest

.gitignore

@@ -15,4 +15,6 @@ node-*
 /lib/coder-cloud-agent
 .home
 coverage
-**/.DS_Store
+**/.DS_Store
+test/videos
+test/screenshots

ci/dev/test.sh

@@ -9,6 +9,18 @@ main() {
   # information. We must also run it from the root otherwise coverage will not
   # include our source files.
   cd "$OLDPWD"
+  if [[ -z ${PASSWORD-} ]] || [[ -z ${CODE_SERVER_ADDRESS-} ]]; then
+    echo "The end-to-end testing suites rely on your local environment"
+    echo -e "\n"
+    echo "Please set the following environment variables locally:"
+    echo "  \$PASSWORD"
+    echo "  \$CODE_SERVER_ADDRESS"
+    echo -e "\n"
+    echo "Please make sure you have code-server running locally with the flag:"
+    echo "  --home \$CODE_SERVER_ADDRESS/healthz "
+    echo -e "\n"
+    exit 1
+  fi
   CS_DISABLE_PLUGINS=true ./test/node_modules/.bin/jest "$@"
 }
 

package.json

@@ -143,8 +143,16 @@
         "lines": 40
       }
     },
+    "testTimeout": 30000,
+    "globalSetup": "<rootDir>/test/globalSetup.ts",
     "modulePathIgnorePatterns": [
-      "<rootDir>/release"
+      "<rootDir>/lib/vscode",
+      "<rootDir>/release-packages",
+      "<rootDir>/release",
+      "<rootDir>/release-standalone",
+      "<rootDir>/release-npm-package",
+      "<rootDir>/release-gcp",
+      "<rootDir>/release-images"
     ]
   }
 }

src/node/routes/login.ts

@@ -7,7 +7,7 @@ import { rootPath } from "../constants"
 import { authenticated, getCookieDomain, redirect, replaceTemplates } from "../http"
 import { hash, humanPath } from "../util"
 
-enum Cookie {
+export enum Cookie {
   Key = "key",
 }
 

test/constants.ts

@@ -0,0 +1,3 @@
+export const CODE_SERVER_ADDRESS = process.env.CODE_SERVER_ADDRESS || "http://localhost:8080"
+export const PASSWORD = process.env.PASSWORD || "e45432jklfdsab"
+export const STORAGE = process.env.STORAGE || ""

test/e2e.test.ts

@@ -1,4 +1,5 @@
 import { chromium, Page, Browser } from "playwright"
+import { CODE_SERVER_ADDRESS } from "./constants"
 
 let browser: Browser
 let page: Page
@@ -17,7 +18,7 @@ afterEach(async () => {
 })
 
 it("should see the login page", async () => {
-  await page.goto("http://localhost:8080")
+  await page.goto(CODE_SERVER_ADDRESS)
   // It should send us to the login page
   expect(await page.title()).toBe("code-server login")
 })

test/globalSetup.ts

@@ -0,0 +1,34 @@
+// This setup runs before our e2e tests
+// so that it authenticates us into code-server
+// ensuring that we're logged in before we run any tests
+import { chromium } from "playwright"
+import { CODE_SERVER_ADDRESS, PASSWORD } from "./constants"
+import * as wtfnode from "./wtfnode"
+
+module.exports = async () => {
+  console.log("\n🚨 Running Global Setup for Jest Tests")
+  console.log("     Please hang tight...")
+  const browser = await chromium.launch()
+  const context = await browser.newContext()
+  const page = await context.newPage()
+
+  if (process.env.WTF_NODE) {
+    wtfnode.setup()
+  }
+
+  await page.goto(CODE_SERVER_ADDRESS, { waitUntil: "domcontentloaded" })
+  // Type in password
+  await page.fill(".password", PASSWORD)
+  // Click the submit button and login
+  await page.click(".submit")
+
+  // Save storage state and store as an env variable
+  // More info: https://playwright.dev/docs/auth?_highlight=authe#reuse-authentication-state
+  const storage = await context.storageState()
+  process.env.STORAGE = JSON.stringify(storage)
+
+  await page.close()
+  await browser.close()
+  await context.close()
+  console.log("✅ Global Setup for Jest Tests is now complete.")
+}

test/goHome.test.ts

@@ -0,0 +1,88 @@
+import { chromium, Page, Browser, BrowserContext, Cookie } from "playwright"
+import { hash } from "../src/node/util"
+import { CODE_SERVER_ADDRESS, PASSWORD, STORAGE } from "./constants"
+import { createCookieIfDoesntExist } from "./helpers"
+
+describe("go home", () => {
+  let browser: Browser
+  let page: Page
+  let context: BrowserContext
+
+  beforeAll(async () => {
+    browser = await chromium.launch()
+    // Create a new context with the saved storage state
+    const storageState = JSON.parse(STORAGE) || {}
+
+    const cookieToStore = {
+      sameSite: "Lax" as const,
+      name: "key",
+      value: hash(PASSWORD),
+      domain: "localhost",
+      path: "/",
+      expires: -1,
+      httpOnly: false,
+      secure: false,
+    }
+
+    // For some odd reason, the login method used in globalSetup.ts doesn't always work
+    // I don't know if it's on playwright clearing our cookies by accident
+    // or if it's our cookies disappearing.
+    // This means we need an additional check to make sure we're logged in.
+    // We do this by manually adding the cookie to the browser environment
+    // if it's not there at the time the test starts
+    const cookies: Cookie[] = storageState.cookies || []
+    // If the cookie exists in cookies then
+    // this will return the cookies with no changes
+    // otherwise if it doesn't exist, it will create it
+    // hence the name maybeUpdatedCookies
+    //
+    // TODO(@jsjoeio)
+    // The playwright storage thing sometimes works and sometimes doesn't. We should investigate this further
+    // at some point.
+    // See discussion: https://github.com/cdr/code-server/pull/2648#discussion_r575434946
+
+    const maybeUpdatedCookies = createCookieIfDoesntExist(cookies, cookieToStore)
+
+    context = await browser.newContext({
+      storageState: { cookies: maybeUpdatedCookies },
+      recordVideo: { dir: "./test/videos/" },
+    })
+  })
+
+  afterAll(async () => {
+    // Remove password from local storage
+    await context.clearCookies()
+
+    await context.close()
+    await browser.close()
+  })
+
+  beforeEach(async () => {
+    page = await context.newPage()
+  })
+
+  // NOTE: this test will fail if you do not run code-server with --home $CODE_SERVER_ADDRESS/healthz
+  it("should see a 'Go Home' button in the Application Menu that goes to /healthz", async () => {
+    const GO_HOME_URL = `${CODE_SERVER_ADDRESS}/healthz`
+    // Sometimes a dialog shows up when you navigate
+    // asking if you're sure you want to leave
+    // so we listen if it comes, we accept it
+    page.on("dialog", (dialog) => dialog.accept())
+
+    // waitUntil: "domcontentloaded"
+    // In case the page takes a long time to load
+    await page.goto(CODE_SERVER_ADDRESS, { waitUntil: "domcontentloaded" })
+
+    // Click the Home menu
+    await page.click(".home-bar ul[aria-label='Home'] li")
+    // See the Go Home button
+    const goHomeButton = "a.action-menu-item span[aria-label='Go Home']"
+    expect(await page.isVisible(goHomeButton))
+
+    // Click it and navigate to /healthz
+    // NOTE: ran into issues of it failing intermittently
+    // without having button: "middle"
+    await Promise.all([page.waitForNavigation(), page.click(goHomeButton, { button: "middle" })])
+    expect(page.url()).toBe(GO_HOME_URL)
+  })
+})

test/helpers.ts

@@ -0,0 +1,35 @@
+// Borrowed from playwright
+export interface Cookie {
+  name: string
+  value: string
+  domain: string
+  path: string
+  /**
+   * Unix time in seconds.
+   */
+  expires: number
+  httpOnly: boolean
+  secure: boolean
+  sameSite: "Strict" | "Lax" | "None"
+}
+
+/**
+ * Checks if a cookie exists in array of cookies
+ */
+export function checkForCookie(cookies: Array<Cookie>, key: string): boolean {
+  // Check for a cookie where the name is equal to key
+  return Boolean(cookies.find((cookie) => cookie.name === key))
+}
+
+/**
+ * Creates a login cookie if one doesn't already exist
+ */
+export function createCookieIfDoesntExist(cookies: Array<Cookie>, cookieToStore: Cookie): Array<Cookie> {
+  const cookieName = cookieToStore.name
+  const doesCookieExist = checkForCookie(cookies, cookieName)
+  if (!doesCookieExist) {
+    const updatedCookies = [...cookies, cookieToStore]
+    return updatedCookies
+  }
+  return cookies
+}