test:add test cases for Alert (#444)

* test:add test cases for Alert

packages/veui/test/unit/specs/components/Alert.spec.js

@@ -0,0 +1,116 @@
+import { mount } from '@vue/test-utils'
+import Alert from '@/components/Alert'
+import { wait } from '../../../utils'
+
+describe('components/Alert', function () {
+  it('shoule render right type for Alert', () => {
+    let wrapper = mount({
+      components: {
+        'veui-alert': Alert
+      },
+      template: '<veui-alert type="success" message="content" closable />'
+    })
+    expect(wrapper.contains('.veui-alert-success')).to.be.equal(true)
+    wrapper.destroy()
+  })
+
+  it('should render slot successfully for Alert', () => {
+    let wrapper = mount({
+      components: {
+        'veui-alert': Alert
+      },
+      data () {
+        return {
+          message: 'default slot content'
+        }
+      },
+      template: `
+        <veui-alert type="warning" :message="message" closable>
+          <div slot-scope="{message}">{{ message }}</div>
+        </veui-alert>
+      `
+    })
+    expect(wrapper.text()).to.be.equal('default slot content')
+    wrapper.destroy()
+  })
+
+  it('should close the message successfully for Alert', async () => {
+    let wrapper = mount({
+      components: {
+        'veui-alert': Alert
+      },
+      data () {
+        return {
+          open: true,
+          closed: false
+        }
+      },
+      methods: {
+        close () {
+          this.closed = true
+        }
+      },
+      template: `
+        <veui-alert 
+          type="info" 
+          message="content" 
+          closable 
+          close-label="close"
+          @update:open="val => open = val"
+          @close="close"
+          :open="open"
+          />
+      `
+    })
+    wrapper.find('.veui-alert-close-text').trigger('click')
+    await wait(500)
+    expect(wrapper.find('.veui-alert').exists()).to.be.equal(false)
+    expect(wrapper.vm.open).to.be.equal(false)
+    expect(wrapper.vm.closed).to.be.equal(true)
+    wrapper.destroy()
+  })
+
+  it('should render multiple message successfully for Alert', () => {
+    let wrapper = mount({
+      components: {
+        'veui-alert': Alert
+      },
+      data () {
+        return {
+          message: ['message one', 'message two', 'message three']
+        }
+      },
+      template: '<veui-alert type="error" :message="message" closable />'
+    })
+    expect(wrapper.find('.veui-alert-nav').exists()).to.be.equal(true)
+    wrapper.destroy()
+  })
+
+  it('should switch message correctly for Alert', () => {
+    let wrapper = mount({
+      components: {
+        'veui-alert': Alert
+      },
+      data () {
+        return {
+          message: ['message one', 'message two', 'message three']
+        }
+      },
+      template: '<veui-alert type="error" :message="message" closable :index="1" />'
+    })
+    let nav = wrapper.find('.veui-alert-nav')
+    let prev = nav.findAll('.veui-button').at(0)
+    let next = nav.findAll('.veui-button').at(1)
+    prev.trigger('click')
+    expect(wrapper.text()).to.be.equal('message one  1/3')
+    prev.trigger('click')
+    expect(wrapper.text()).to.be.equal('message one  1/3')
+    next.trigger('click')
+    expect(wrapper.text()).to.be.equal('message two  2/3')
+    next.trigger('click')
+    expect(wrapper.text()).to.be.equal('message three  3/3')
+    next.trigger('click')
+    expect(wrapper.text()).to.be.equal('message three  3/3')
+    wrapper.destroy()
+  })
+})