feat:add watermark test case

cypress/integration/menus/watermark.spec.ts

@@ -0,0 +1,60 @@
+import Editor from '../../../src/editor'
+
+describe('菜单-水印', () => {
+
+  beforeEach(() => {
+    cy.visit('http://localhost:3000/canvas-editor/')
+
+    cy.get('canvas').first().as('canvas').should('have.length', 1)
+  })
+
+  const text = 'canvas-editor'
+  const size = 80
+
+  it('添加水印', () => {
+    cy.getEditor().then((editor: Editor) => {
+      editor.listener.saved = function (payload) {
+        const { watermark } = payload
+
+        expect(watermark?.data).to.eq(text)
+
+        expect(watermark?.size).to.eq(size)
+      }
+
+      cy.get('.menu-item__watermark').click()
+
+      cy.get('.menu-item__watermark li').eq(0).click()
+
+      cy.get('.dialog-option [name="data"]').type(text)
+
+      cy.get('.dialog-option [name="size"]').as('size')
+
+      cy.get('@size').clear()
+
+      cy.get('@size').type(`${size}`)
+
+      cy.get('.dialog-menu button').eq(1).click()
+
+      cy.get('@canvas').type('{ctrl}s')
+    })
+  })
+
+  it('删除水印', () => {
+    cy.getEditor().then((editor: Editor) => {
+      editor.listener.saved = function (payload) {
+        const { watermark } = payload
+
+        expect(watermark?.data).to.eq(undefined)
+
+        expect(watermark?.size).to.eq(undefined)
+      }
+
+      cy.get('.menu-item__watermark').click()
+
+      cy.get('.menu-item__watermark li').eq(1).click()
+
+      cy.get('@canvas').type('{ctrl}s')
+    })
+  })
+
+})