Update README.md (#120)

* Update README.md

Update "If you only need the Hyvä tests" section.

* Add emptyCart() function to the cart page-object.

README.md

@@ -180,6 +180,7 @@ If you only need the Hyvä tests:
 
 ```
 rm -rf cypress/{fixtures,page-objects,integration}/luma
+rm -rf cypress/{integration}/luma-accessibility
 ```
 
 If you only need the Luma tests;

cypress/page-objects/luma/cart.js

@@ -16,5 +16,19 @@ export class Cart {
         cy.get(cart.addCouponButton).click()
         cy.wait(3000)
     }
+
+    static emptyCart() {
+        cy.visit(cart.url.cartUrl)
+        cy.wait(3000)
+
+        cy.log('Check of the cart is already empty.')
+
+        cy.get('body').then((body) => {
+            if (body.find(cart.emptyCartTextField).length === 0) {
+                cy.get(cart.deleteProductButton).as('btn').should('be.visible')
+                cy.get('@btn').click({force: true, multiple: true})
+            }
+        });
+    }
 }