Add first accessibility tests

test/__helpers__/accessibility.ts

@@ -0,0 +1,14 @@
+import { screen } from '@testing-library/react';
+import { run } from 'axe-core';
+
+type ContainerWrapper = { container: HTMLElement };
+
+type AccessibilityTestSubject = ContainerWrapper | Promise<ContainerWrapper>;
+
+export const checkAccessibility = async (subject: AccessibilityTestSubject) => {
+  const { container } = await subject;
+  screen.debug(container);
+  const { violations } = await run(container);
+
+  expect(violations).toStrictEqual([]);
+};