Add e2e test of swapping choices

cypress/e2e/spec.cy.js

@@ -27,4 +27,38 @@ describe('End to end tests', () => {
     cy.contains('Answer 1')
     cy.contains('Answer 2')
   })
+
+  it('should swap the choices of question set after submit', () => {
+    cy.visit('/')
+    cy.contains('Add New Question Set').click()
+
+    // Adding question set
+
+    cy.contains('Question Set Name').type('Test Question Set')
+    cy.contains('Question 1').type('Test Question 1')
+
+    // choice 1
+    cy.findByLabelText('answer of question 1 choice 1').type('Answer 1')
+    cy.findByLabelText('question 1 choice 1 is correct answer').click()
+
+    // choice 2
+    cy.findByLabelText('answer of question 1 choice 2').type('Answer 2')
+
+    cy.contains('Save').click()
+
+    cy.visit('/')
+    cy.contains('Take Quiz').click()
+    cy.contains('Submit').click()
+
+    cy.visit('/')
+    cy.contains('Take Quiz').click()
+
+    cy.findByText('Answer 1').then(($el1) => {
+      cy.findByText('Answer 2').then(($el2) => {
+        expect($el2[0].compareDocumentPosition($el1[0])).to.eq(
+          Node.DOCUMENT_POSITION_FOLLOWING,
+        )
+      })
+    })
+  })
 })