Separate auth0 users depending on tenants

front/src/hooks/tenant/__tests__/useGetTenantByDomain.test.tsx

@@ -0,0 +1,25 @@
+import { renderHook } from '@testing-library/react';
+import { useQuery, QueryResult } from '@apollo/client';
+import { useGetTenantByDomain } from '../useGetTenantByDomain';
+
+jest.mock('@apollo/client', () => ({
+  useQuery: jest.fn(),
+}));
+
+describe('useGetTenantByDomain', () => {
+  beforeEach(() => {
+    const result: Partial<QueryResult<any>> = {
+      data: { tenants: [{ domain: 'pilot.twenty.com' }] },
+      loading: false,
+      error: undefined,
+    };
+    (useQuery as jest.Mock).mockImplementation(() => result as QueryResult);
+  });
+
+  it('returns tenant by domain', () => {
+    const { result } = renderHook(() => useGetTenantByDomain());
+    const domain = result.current.tenant?.domain;
+    expect(domain).toEqual(result.current.tenant?.domain);
+    expect(useQuery).toHaveBeenCalledTimes(1);
+  });
+});