feat:add checkbox test case

cypress/integration/menus/checkbox.spec.ts

@@ -0,0 +1,37 @@
+import Editor, { ElementType } from '../../../src/editor'
+
+describe('菜单-复选框', () => {
+
+  beforeEach(() => {
+    cy.visit('http://localhost:3000/canvas-editor/')
+
+    cy.get('canvas').first().as('canvas').should('have.length', 1)
+  })
+
+  const type: ElementType = <ElementType>'checkbox'
+
+  it('代码块', () => {
+    cy.getEditor().then((editor: Editor) => {
+      editor.listener.saved = function (payload) {
+        const data = payload.data[0]
+
+        expect(data.checkbox?.value).to.eq(true)
+      }
+
+      editor.command.executeSelectAll()
+
+      editor.command.executeBackspace()
+
+      editor.command.executeInsertElementList([{
+        type,
+        value: '',
+        checkbox: {
+          value: true
+        }
+      }])
+
+      cy.get('@canvas').type('{ctrl}s')
+    })
+  })
+
+})