diff --git a/packages/react-test-renderer/src/__tests__/ReactTestRenderer-test.internal.js b/packages/react-test-renderer/src/__tests__/ReactTestRenderer-test.internal.js
index d9c8d5b1c520..06f7131f2bd5 100644
--- a/packages/react-test-renderer/src/__tests__/ReactTestRenderer-test.internal.js
+++ b/packages/react-test-renderer/src/__tests__/ReactTestRenderer-test.internal.js
@@ -1022,4 +1022,14 @@ describe('ReactTestRenderer', () => {
expect(Scheduler).toFlushWithoutYielding();
ReactTestRenderer.create();
});
+
+ it('calling findByType() with an invalid component will fall back to "Unknown" for component name', () => {
+ const App = () => null;
+ const renderer = ReactTestRenderer.create();
+ const NonComponent = {};
+
+ expect(() => {
+ renderer.root.findByType(NonComponent);
+ }).toThrowError(`No instances found with node type: "Unknown"`);
+ });
});