add test coverage for union type props

Signed-off-by: Winner95 <Winner95@users.noreply.github.com>

Author: Winner95

__tests__/handler.test.js

@@ -59,6 +59,15 @@ describe('typescript-react-function-component-props-handler', () => {
         );
     });
 
+    test('handles React.FC<Props> components with union type props', () => {
+        const doc = parseFixture('Icon.tsx');
+
+        expect(doc.props).toHaveProperty('size');
+        expect(doc.props.size.tsType).toMatchObject({ name: 'union' });
+        expect(doc.props.size.tsType).toHaveProperty('raw');
+        expect(doc.props.size.tsType.raw).toBe("'small' | 'medium' | 'big'");
+    });
+
     // Line 31 in index.js without type - can't be tested directly because of early return
     test('handles components without type', () => {
         const doc = parseFixture('ComponentWithoutType.tsx');

fixtures/Icon.tsx

@@ -0,0 +1,13 @@
+import React from 'react';
+
+type IconProps = Omit<
+  React.SVGProps<SVGSVGElement>,
+  'width' | 'height' | 'focusable'
+> & {
+  size?: 'small' | 'medium' | 'big';
+  color?: 'solid' | 'neutral' | 'warning';
+};
+
+export const Icon: React.FC<IconProps> = ({ size }) => {
+  return <span>{size}</span>;
+};