add test to the italic extension demo

docs/src/demos/Extensions/Italic/index.spec.js

@@ -0,0 +1,26 @@
+context('/api/extensions/italic', () => {
+  beforeEach(() => {
+    cy.visit('/api/extensions/italic')
+
+    cy.get('.ProseMirror').window().then(window => {
+      const { editor } = window
+      editor.setContent('<p>Example Text</p>')
+      editor.focus().selectAll()
+    })
+  })
+
+  describe('italic', () => {
+    it('should make the selected text italic', () => {
+      cy.get('.demo__preview button:first').click({ force: true })
+      cy.get('.ProseMirror').contains('em', 'Example Text')
+
+      cy.get('.demo__preview button:first').click({ force: true })
+      cy.get('.ProseMirror em').should('not.exist')
+    })
+
+    it('should toggle the selected text italic', () => {
+      cy.get('.demo__preview button:first').dblclick({ force: true })
+      cy.get('.ProseMirror em').should('not.exist')
+    })
+  })
+})

docs/src/demos/Extensions/Italic/index.vue

@@ -42,6 +42,8 @@ export default {
         <p style="font-style: italic">This as well.</p>
       `,
     })
+
+    window.editor = this.editor
   },
 
   beforeDestroy() {