chore: adding valid dialog test coverage

src/features/Apiexplorer/ValidDialog/__tests__/ValidDialog.test.tsx

@@ -1,6 +1,7 @@
 import React from 'react';
 import ValidDialog from '..';
 import { screen, render } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
 
 describe('ValidDialog', () => {
   test('if correct test is rendered', () => {
@@ -13,4 +14,19 @@ describe('ValidDialog', () => {
 
     expect(text).toBeVisible();
   });
+  it('should close popup when clicking on close button', async () => {
+    const setIsNotValid = jest.fn();
+    const setToggleModal = jest.fn();
+
+    render(<ValidDialog setIsNotValid={setIsNotValid} setToggleModal={setToggleModal} />);
+    const modal = screen.getByText(
+      'Your JSON object is invalid. Please make sure you provide the correct syntax for your JSON object.',
+    );
+    const close_button = screen.getByTestId('close-button');
+    await userEvent.click(close_button);
+
+    expect(modal).not.toBeInTheDocument();
+    expect(setIsNotValid).toHaveBeenCalled();
+    expect(setToggleModal).toHaveBeenCalled();
+  });
 });