MM-63669 E2E/Playwright: Move "e2e-tests/playwright/test" to "e2e-tests/playwright" folder (#30647)

* move "e2e-tests/playwright/test" to  "e2e-tests/playwright/test" and expose "ensurePluginsLoaded"

* add test setup, and expose ensurePluginsLoaded and ensureServerDeployment to pw

e2e-tests/playwright/specs/accessibility/common/signup_user_complete.spec.ts

@@ -0,0 +1,115 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import {expect, test} from '@mattermost/playwright-lib';
+
+test('/signup_user_complete accessibility quick check', async ({pw, axe}) => {
+    // Set up the page not to redirect to the landing page
+    await pw.hasSeenLandingPage();
+
+    // # Go to reset password page
+    await pw.signupPage.goto();
+    await pw.signupPage.toBeVisible();
+
+    // # Analyze the page
+    const accessibilityScanResults = await axe
+        .builder(pw.signupPage.page, {disableColorContrast: true, disableLinkInTextBlock: true})
+        .analyze();
+
+    // * Should have no violation
+    expect(accessibilityScanResults.violations).toHaveLength(0);
+});
+
+test('/signup_user_complete accessibility tab support', async ({pw}, testInfo) => {
+    // Set up the page not to redirect to the landing page
+    await pw.hasSeenLandingPage();
+
+    // # Go to reset password page
+    await pw.signupPage.goto();
+    await pw.signupPage.toBeVisible();
+
+    // * Should have focused at email input on page load
+    expect(await pw.signupPage.emailInput).toBeFocused();
+
+    // * Should move focus to username input after tab
+    await pw.signupPage.emailInput.press('Tab');
+    expect(await pw.signupPage.usernameInput).toBeFocused();
+
+    // * Should move focus to password input after tab
+    await pw.signupPage.usernameInput.press('Tab');
+    expect(await pw.signupPage.passwordInput).toBeFocused();
+
+    // * Should move focus to password toggle button after tab
+    await pw.signupPage.passwordInput.press('Tab');
+    expect(await pw.signupPage.passwordToggleButton).toBeFocused();
+
+    // * Should move focus to newsletter checkbox after tab
+    await pw.signupPage.passwordToggleButton.press('Tab');
+    expect(await pw.signupPage.newsLetterCheckBox).toBeFocused();
+
+    // * Should move focus to newsletter privacy policy link after tab
+    await pw.signupPage.newsLetterCheckBox.press('Tab');
+    expect(await pw.signupPage.newsLetterPrivacyPolicyLink).toBeFocused();
+
+    // * Should move focus to newsletter unsubscribe link after tab
+    await pw.signupPage.newsLetterPrivacyPolicyLink.press('Tab');
+    expect(await pw.signupPage.newsLetterUnsubscribeLink).toBeFocused();
+
+    // * Should move focus to agreement terms of use link after tab
+    await pw.signupPage.newsLetterUnsubscribeLink.press('Tab');
+    expect(await pw.signupPage.agreementTermsOfUseLink).toBeFocused();
+
+    // * Should move focus to agreement privacy policy link after tab
+    await pw.signupPage.agreementTermsOfUseLink.press('Tab');
+    expect(await pw.signupPage.agreementPrivacyPolicyLink).toBeFocused();
+
+    // * Should move focus to privacy policy link after tab
+    await pw.signupPage.footer.aboutLink.press('Tab');
+    expect(await pw.signupPage.footer.privacyPolicyLink).toBeFocused();
+
+    // * Should move focus to terms link after tab
+    await pw.signupPage.footer.privacyPolicyLink.press('Tab');
+    expect(await pw.signupPage.footer.termsLink).toBeFocused();
+
+    // * Should move focus to help link after tab
+    await pw.signupPage.footer.termsLink.press('Tab');
+    expect(await pw.signupPage.footer.helpLink).toBeFocused();
+
+    // # Move focus to email input
+    await pw.signupPage.emailInput.focus();
+    expect(await pw.signupPage.emailInput).toBeFocused();
+
+    // * Should move focus to sign up body after shift+tab
+    await pw.signupPage.emailInput.press('Shift+Tab');
+    expect(await pw.signupPage.bodyCard).toBeFocused();
+
+    // * Should move focus to sign up body after shift+tab
+    await pw.signupPage.emailInput.press('Shift+Tab');
+    expect(await pw.signupPage.bodyCard).toBeFocused();
+
+    if (testInfo.project.name === 'ipad') {
+        // * Should move focus to header back button after shift+tab
+        await pw.signupPage.bodyCard.press('Shift+Tab');
+        expect(await pw.signupPage.header.backButton).toBeFocused();
+
+        // * Should move focus to log in link after shift+tab
+        await pw.signupPage.header.backButton.press('Shift+Tab');
+        expect(await pw.signupPage.loginLink).toBeFocused();
+
+        // * Should move focus to header logo after shift+tab
+        await pw.signupPage.loginLink.press('Shift+Tab');
+        expect(await pw.signupPage.header.logo).toBeFocused();
+    } else {
+        // * Should move focus to log in link after shift+tab
+        await pw.signupPage.bodyCard.press('Shift+Tab');
+        expect(await pw.signupPage.loginLink).toBeFocused();
+
+        // * Should move focus to header back button after shift+tab
+        await pw.signupPage.loginLink.press('Shift+Tab');
+        expect(await pw.signupPage.header.backButton).toBeFocused();
+
+        // * Should move focus to header logo after shift+tab
+        await pw.signupPage.header.backButton.press('Shift+Tab');
+        expect(await pw.signupPage.header.logo).toBeFocused();
+    }
+});