[Backport 2.x] add test cases for assistant feedback

cypress/integration/plugins/dashboards-assistant/feedback_spec.js

@@ -0,0 +1,60 @@
+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+import { BASE_PATH } from '../../../utils/constants';
+
+if (Cypress.env('DASHBOARDS_ASSISTANT_ENABLED')) {
+  describe('Assistant feedback spec', () => {
+    before(() => {
+      // Set welcome screen tracking to false
+      localStorage.setItem('home:welcome:show', 'false');
+      // Set new theme modal to false
+      localStorage.setItem('home:newThemeModal:show', 'false');
+    });
+
+    beforeEach(() => {
+      // Visit ISM OSD
+      cy.visit(`${BASE_PATH}/app/home`);
+
+      // Common text to wait for to confirm page loaded, give up to 60 seconds for initial load
+      cy.get(`input[placeholder="Ask question"]`, { timeout: 60000 }).should(
+        'be.length',
+        1
+      );
+    });
+
+    // clean up localStorage items
+    after(() => {
+      localStorage.removeItem('home:welcome:show');
+      localStorage.removeItem('home:newThemeModal:show');
+    });
+
+    describe('conversation feedback', () => {
+      it('display feedback button and able to interact', () => {
+        // input question
+        cy.wait(1000);
+        cy.get(`input[placeholder="Ask question"]`)
+          .click()
+          .type('What are the indices in my cluster?{enter}');
+
+        // should have a LLM Response
+        cy.contains('The indices in your cluster');
+
+        // should have a thumb up and a thumb down feedback button
+        cy.get(`[aria-label="feedback thumbs up"]`).should('be.length', 1);
+        cy.get(`[aria-label="feedback thumbs down"]`).should('be.length', 1);
+        // click thumb up button to feedback
+        cy.get(`[aria-label="feedback thumbs up"]`).click();
+        // only thumb up button displays and thumb down button is hidden
+        cy.get(`[aria-label="feedback thumbs down"]`).should('be.length', 0);
+        cy.get(`[aria-label="feedback thumbs up"]`).should('be.length', 1);
+        // The type of clicked button should be primary.
+        cy.get(`[aria-label="feedback thumbs up"]`).should(
+          'have.class',
+          'euiButtonIcon--primary'
+        );
+      });
+    });
+  });
+}