test: [M3-7464] - Add Cypress test FW landing page empty state (#10000)

* test: [M3-7464] - Add Cypress test FW landing page empty state

* Add changeset

packages/manager/.changeset/pr-10000-tests-1702591069388.md

@@ -0,0 +1,5 @@
+---
+"@linode/manager": Tests
+---
+
+Introduce Cypress test for the Firewalls landing page empty state ([#10000](https://github.com/linode/manager/pull/10000))

packages/manager/cypress/e2e/core/firewalls/landing-page-empty-state.spec.ts

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+import { ui } from 'support/ui';
+import { mockGetFirewalls } from 'support/intercepts/firewalls';
+
+describe('confirms Firewalls landing page empty state is shown when no Firewalls exist', () => {
+  /*
+   * - Confirms that Getting Started Guides is listed on landing page.
+   * - Confirms that Video Playlist is listed on landing page.
+   * - Confirms that clicking on Create Firewall button navigates user to firewall create page.
+   */
+  it('shows the empty state when no Firewalls exist', () => {
+    mockGetFirewalls([]).as('getFirewalls');
+
+    cy.visitWithLogin('/firewalls');
+    cy.wait(['@getFirewalls']);
+
+    cy.findByText('Secure cloud-based firewall').should('be.visible');
+    cy.findByText(
+      'Control network traffic to and from Linode Compute Instances with a simple management interface'
+    ).should('be.visible');
+    cy.findByText('Getting Started Guides').should('be.visible');
+    cy.findByText('Video Playlist').should('be.visible');
+
+    // Create Firewall button exists and clicking it navigates user to create firewall page.
+    ui.button
+      .findByTitle('Create Firewall')
+      .should('be.visible')
+      .should('be.enabled')
+      .click();
+
+    cy.url().should('endWith', '/firewalls/create');
+  });
+});