unit test: d2-count-up d2-icon

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tests/unit/d2-count-up.spec.js

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+import { mount } from '@vue/test-utils'
+import D2CountUp from '@/components/d2-count-up/index.vue'
+
+describe('d2-count-up.vue', () => {
+  // 存在且是Vue组件实例
+  it('is a vue instance', () => {
+    const wrapper = mount(D2CountUp, {
+      propsData: {
+        end: 100
+      }
+    })
+
+    expect(wrapper.exists()).toBeTruthy()
+    expect(wrapper.isVueInstance()).toBeTruthy()
+  })
+})

tests/unit/d2-icon.spec.js

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+import { mount } from '@vue/test-utils'
+import D2Icon from '@/components/d2-icon/index.vue'
+
+describe('d2-icon.vue', () => {
+  // 存在且是Vue组件实例
+  it('is a vue instance', () => {
+    const wrapper = mount(D2Icon)
+
+    expect(wrapper.exists()).toBeTruthy()
+    expect(wrapper.isVueInstance()).toBeTruthy()
+  })
+
+  // 包含特定类名
+  it('contains specific classnames', () => {
+    const wrapper = mount(D2Icon)
+
+    expect(wrapper.is('.fa')).toBeTruthy()
+    expect(wrapper.contains('.fa-font-awesome')).toBeTruthy()
+  })
+
+  // name prop
+  it('has a property named \'name\'', () => {
+    const wrapper = mount(D2Icon, {
+      propsData: {
+        name: 'font-awesome'
+      }
+    })
+
+    expect(wrapper.props().name).toEqual('font-awesome')
+  })
+})