test: add unit tests and additional story for as property

Author: rmartins90

src/text-link/text-link.stories.mdx

@@ -26,6 +26,14 @@ A component used to create text-based hyperlinks.
             <TextLink href="https://www.doist.com/" openInNewTab={true}>
                 open in new tab
             </TextLink>
+            <TextLink
+                as="button"
+                onClick={() => {
+                    alert('clicked')
+                }}
+            >
+                button link
+            </TextLink>
         </Stack>
     </Story>
 </Canvas>

src/text-link/text-link.test.tsx

@@ -0,0 +1,65 @@
+import { render, screen } from '@testing-library/react'
+import * as React from 'react'
+import { TextLink } from './text-link'
+
+describe('TextLink', () => {
+    it('renders a link with the provided href', () => {
+        render(<TextLink href="https://example.com">Click me</TextLink>)
+
+        const link = screen.getByText('Click me')
+        expect(link).toHaveAttribute('href', 'https://example.com')
+    })
+
+    it('opens in new tab when openInNewTab is true', () => {
+        render(
+            <TextLink href="https://example.com" openInNewTab>
+                External link
+            </TextLink>,
+        )
+
+        const link = screen.getByText('External link')
+        expect(link).toHaveAttribute('target', '_blank')
+        expect(link).toHaveAttribute('rel', 'noopener noreferrer')
+    })
+
+    it('does not add target or rel attributes when openInNewTab is false', () => {
+        render(
+            <TextLink href="https://example.com" openInNewTab={false}>
+                Internal link
+            </TextLink>,
+        )
+
+        const link = screen.getByText('Internal link')
+        expect(link).not.toHaveAttribute('target')
+        expect(link).not.toHaveAttribute('rel')
+    })
+
+    it('can be rendered as a different element using the as prop', () => {
+        render(
+            <TextLink
+                as="button"
+                onClick={() => {
+                    // noop
+                }}
+            >
+                Button link
+            </TextLink>,
+        )
+
+        const button = screen.getByText('Button link')
+        expect(button.tagName).toBe('BUTTON')
+    })
+
+    it('applies custom className while preserving default styles', () => {
+        render(
+            <TextLink href="#" exceptionallySetClassName="custom-class">
+                Styled link
+            </TextLink>,
+        )
+
+        const link = screen.getByText('Styled link')
+        expect(link).toHaveClass('custom-class')
+        // Verify it still has the default container class
+        expect(link).toHaveClass('container')
+    })
+})