Add initial button tests

src/components/__tests__/button.test.tsx

@@ -0,0 +1,20 @@
+import { render, screen } from '@testing-library/react'
+import React from 'react'
+
+import { Button } from '@/components/button'
+
+describe('Rendering', () => {
+  describe('Button', () => {
+    it('should render a button', async () => {
+      render(<Button aria-label="test button">My Button</Button>)
+
+      expect(screen.getByRole('button')).toBeInTheDocument()
+    })
+
+    it('should default to `type="button"`', async () => {
+      render(<Button aria-label="test-button">My Button</Button>)
+
+      expect(screen.getByRole('button')).toHaveAttribute('type', 'button')
+    })
+  })
+})