Added playwright tests. (#6212)

* Added playwright tests.

* Added clear authorship color.

* Ported enter ts.

* Ported more tests.

* Commented helper tests.

* Fixed admin tests.

* Fixed.

* Fixed admin pages not there.

* Fixed waiting.

* Upload playwright report.

* Remove saucelabs

* Fixed waiting.

* Fixed upload artifact.

* Also install deps.

* Added retry mechanism.

* Added timeout for restart etherpad server.

* Fixed tests.

* Added frontend playwright tests.

src/playwright.config.ts

@@ -0,0 +1,69 @@
+import {defineConfig, devices, test} from '@playwright/test';
+
+
+/**
+ * See https://playwright.dev/docs/test-configuration.
+ */
+export default defineConfig({
+    testDir: './tests/frontend-new/',
+    timeout: 90000,
+    /* Run tests in files in parallel */
+    fullyParallel: true,
+    /* Fail the build on CI if you accidentally left test.only in the source code. */
+    /* Reporter to use. See https://playwright.dev/docs/test-reporters */
+    reporter: 'html',
+    retries: 3,
+    /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */
+    use: {
+        /* Base URL to use in actions like `await page.goto('/')`. */
+        // baseURL: 'http://127.0.0.1:3000',
+        baseURL: "localhost:9001",
+        /* Collect trace when retrying the failed test. See https://playwright.dev/docs/trace-viewer */
+        trace: 'on-first-retry',
+    },
+
+    /* Configure projects for major browsers */
+    projects: [
+        {
+            name: 'chromium',
+            use: { ...devices['Desktop Chrome'] },
+        },
+
+        {
+            name: 'firefox',
+            use: { ...devices['Desktop Firefox'] },
+        },
+
+        {
+            name: 'webkit',
+            use: { ...devices['Desktop Safari'] },
+        },
+
+        /* Test against mobile viewports. */
+        // {
+        //   name: 'Mobile Chrome',
+        //   use: { ...devices['Pixel 5'] },
+        // },
+        // {
+        //   name: 'Mobile Safari',
+        //   use: { ...devices['iPhone 12'] },
+        // },
+
+        /* Test against branded browsers. */
+        // {
+        //   name: 'Microsoft Edge',
+        //   use: { ...devices['Desktop Edge'], channel: 'msedge' },
+        // },
+        // {
+        //   name: 'Google Chrome',
+        //   use: { ...devices['Desktop Chrome'], channel: 'chrome' },
+        // },
+    ],
+
+    /* Run your local dev server before starting the tests */
+    // webServer: {
+    //   command: 'npm run start',
+    //   url: 'http://127.0.0.1:3000',
+    //   reuseExistingServer: !process.env.CI,
+    // },
+});