test: add unit test

Author: sungik-choi

packages/bezier-react/src/components/AlphaIcon/Icon.test.tsx

@@ -0,0 +1,43 @@
+import { ChannelBtnFilledIcon } from '@channel.io/bezier-icons'
+import { render, screen } from '@testing-library/react'
+
+import { Icon } from './Icon'
+
+describe('Icon', () => {
+  const renderIcon = (props = {}) =>
+    render(
+      <Icon
+        source={ChannelBtnFilledIcon}
+        {...props}
+      />
+    )
+
+  it('should render', () => {
+    renderIcon()
+    expect(screen.getByRole('img', { hidden: true })).toBeInTheDocument()
+  })
+
+  describe('Accessibility', () => {
+    it('should be decorative by default', () => {
+      renderIcon()
+      expect(screen.getByRole('img', { hidden: true })).toHaveAttribute(
+        'aria-hidden',
+        'true'
+      )
+    })
+
+    it('should be accessible with aria-label', () => {
+      renderIcon({ 'aria-label': 'Channel Button' })
+      expect(screen.getByRole('img')).toHaveAttribute(
+        'aria-label',
+        'Channel Button'
+      )
+      expect(screen.getByRole('img')).toBeInTheDocument()
+    })
+
+    it('should respect explicit aria-hidden', () => {
+      renderIcon({ 'aria-hidden': false })
+      expect(screen.getByRole('img')).toBeInTheDocument()
+    })
+  })
+})