chore: increase code coverage

Author: mdjastrzebski

src/__tests__/waitFor.test.tsx

@@ -316,3 +316,12 @@ test.each([
     expect(onPress).toHaveBeenCalledWith('red');
   }
 );
+
+test('waitFor throws if expectation is not a function', async () => {
+  await expect(
+    // @ts-expect-error intentionally passing non-function
+    waitFor('not a function')
+  ).rejects.toThrowErrorMatchingInlineSnapshot(
+    `"Received \`expectation\` arg must be a function"`
+  );
+});

src/queries/__tests__/makeQueries.test.tsx

@@ -231,4 +231,13 @@ describe('printing element tree', () => {
       </View>"
     `);
   });
+
+  test('does not render element tree when toJSON() returns null', () => {
+    const view = render(<View />);
+
+    jest.spyOn(screen, 'toJSON').mockImplementation(() => null);
+    expect(() => view.getByText(/foo/)).toThrowErrorMatchingInlineSnapshot(
+      `"Unable to find an element with text: /foo/"`
+    );
+  });
 });