test: removed preview test flakiness

Author: nickytonline

cypress/integration/default/preview.spec.ts

@@ -4,18 +4,18 @@ describe('Preview Mode', () => {
     cy.getCookies().then((cookie) => cy.log('cookies', cookie))
     // preview mode is off by default
     cy.visit('/previewTest')
-    cy.findByText('Is preview? No', { selector: 'h1' })
+    cy.findByRole('heading', { name: 'Is preview? No' })
 
     // enter preview mode
     cy.request('/api/enterPreview').then((response) => {
       expect(response.body).to.have.property('name', 'preview mode')
     })
     cy.visit('/previewTest')
-    cy.findByText('Is preview? Yes!', { selector: 'h1' })
+    cy.findByRole('heading', { name: 'Is preview? Yes!' })
 
     // exit preview mode
     cy.request('/api/exitPreview')
     cy.visit('/previewTest')
-    cy.findByText('Is preview? No', { selector: 'h1' })
+    cy.findByRole('heading', { name: 'Is preview? No' })
   })
 })