Unit tests for FigureQrCode

frontend/src/components/QrCode/FigureQrCode.spec.js

@@ -22,12 +22,62 @@ describe('FigureQrCode', () => {
       wrapper = Wrapper()
     })
 
-    it('renders the Div Element ".figure-qr-code"', () => {
-      expect(wrapper.find('div.figure-qr-code').exists()).toBeTruthy()
+    afterEach(() => {
+      jest.clearAllMocks()
     })
 
-    it('renders the Div Element "q-r-canvas"', () => {
-      expect(wrapper.find('q-r-canvas'))
+    it('has options filled', () => {
+      expect(wrapper.vm.options).toEqual({
+        cellSize: 8,
+        correctLevel: 'H',
+        data: '',
+      })
+    })
+
+    it('renders the Div Element ".figure-qr-code"', () => {
+      expect(wrapper.find('div.figure-qr-code').exists()).toBe(true)
+    })
+
+    it('renders the Div Element "qrbox"', () => {
+      expect(wrapper.find('div.qrbox').exists()).toBe(true)
+    })
+
+    it('renders the Canvas Element "#qrcanvas"', () => {
+      const canvas = wrapper.find('#qrcanvas')
+
+      // console.log(canvas.html())
+      expect(canvas.exists()).toBe(true)
+
+      // Hier können Sie weitere Tests für das Canvas-Element durchführen
+      // z.B. überprüfen Sie die Breite und Höhe des Canvas-Elements oder den Canvas-Kontext
+
+      const canvasEl = canvas.element
+      const canvasWidth = canvasEl.width
+      const canvasHeight = canvasEl.height
+
+      expect(canvasWidth).toBeGreaterThan(0)
+      expect(canvasHeight).toBeGreaterThan(0)
+
+      const canvasContext = canvasEl.getContext('2d')
+      expect(canvasContext).not.toBeNull()
+    })
+
+    it('renders the A Element "#download"', () => {
+      const downloadLink = wrapper.find('#download')
+      expect(downloadLink.exists()).toBe(true)
+    })
+
+    describe('Download QR-Code link', () => {
+      beforeEach(() => {
+        const downloadLink = wrapper.find('#download')
+        downloadLink.trigger('click')
+        // await wrapper.vm.$nextTick()
+      })
+
+      it('click the A Element "#download" set an href', () => {
+        // expect(toDataURLStub).toHaveBeenCalledWith('image/png')
+        expect(wrapper.find('#download').attributes('href')).toEqual('')
+      })
     })
   })
 })