Add test to display numeric point value

Author: lulunac27a

src/App.test.js

@@ -6,3 +6,15 @@ test('displays title correctly', () => {
   const titleElement = screen.getByText(/endless simple idle game/i);
   expect(titleElement).toBeInTheDocument();
 });
+test('displays points value', () => {
+  render(<App />);
+  const pointsElement = screen.getByText((content, element) => {
+    const hasText = (node) => node.textContent.match(/points: \d+/i);
+    const elementHasText = hasText(element);
+    const childrenDontHaveText = Array.from(element.children).every(
+      (child) => !hasText(child),
+    );
+    return elementHasText && childrenDontHaveText;
+  });
+  expect(pointsElement).toBeInTheDocument();
+});