nav test file

squarenotsquare/__tests__/Nav-test.js

@@ -0,0 +1,6 @@
+import { squareRef, navigate } from "../src/navigation/SquareNav";
+
+test('SquareNav calls navigation ref', () => {
+  let postNav = navigate('notascreen', {});
+  expect(postNav).toEqual(true);
+});