chore(test): add missing test cases

Author: nix6839

tests/lib/rules/require-default-props.js

@@ -337,6 +337,30 @@ ruleTester.run('require-default-props', rule, {
       `,
       options: [{ functions: 'defaultArguments' }],
     },
+    {
+      code: `
+        const NoPropsComponent = function() {
+          return <div>Hello, world!</div>;
+        }
+      `,
+      options: [{ functions: 'defaultArguments' }],
+    },
+    {
+      code: `
+        function NoPropsComponent() {
+          return <div>Hello, world!</div>;
+        }
+      `,
+      options: [{ functions: 'defaultArguments' }],
+    },
+    {
+      code: `
+        const NoPropsComponent = () => {
+          return <div>Hello, world!</div>;
+        }
+      `,
+      options: [{ functions: 'defaultArguments' }],
+    },
 
     // stateless components as arrow function expressions
     {