fix doc explorer tests by adding context provider

packages/graphiql/src/components/__tests__/DocExplorer.spec.tsx

@@ -6,24 +6,37 @@
  */
 import React from 'react';
 import { render } from '@testing-library/react';
-import { DocExplorer } from '../DocExplorer';
+import { ExplorerContextProvider } from '@graphiql/react';
 
+import { DocExplorer } from '../DocExplorer';
 import { ExampleSchema } from './ExampleSchema';
 
+function DocExplorerWithContext(
+  props: React.ComponentProps<typeof DocExplorer>,
+) {
+  return (
+    <ExplorerContextProvider>
+      <DocExplorer {...props} />
+    </ExplorerContextProvider>
+  );
+}
+
 describe('DocExplorer', () => {
   it('renders spinner when no schema prop is present', () => {
-    const { container } = render(<DocExplorer />);
+    const { container } = render(<DocExplorerWithContext />);
     const spinner = container.querySelectorAll('.spinner-container');
     expect(spinner).toHaveLength(1);
   });
   it('renders with null schema', () => {
-    const { container } = render(<DocExplorer schema={null} />);
+    const { container } = render(<DocExplorerWithContext schema={null} />);
     const error = container.querySelectorAll('.error-container');
     expect(error).toHaveLength(1);
     expect(error[0]).toHaveTextContent('No Schema Available');
   });
   it('renders with schema', () => {
-    const { container } = render(<DocExplorer schema={ExampleSchema} />);
+    const { container } = render(
+      <DocExplorerWithContext schema={ExampleSchema} />,
+    );
     const error = container.querySelectorAll('.error-container');
     expect(error).toHaveLength(0);
     expect(container.querySelector('.doc-type-description')).toHaveTextContent(