Add unit tests.

src/hooks/use-auth.test.tsx

@@ -0,0 +1,69 @@
+import keycloak from '@src/utils/keycloak';
+import { act, renderHook } from '@testing-library/react';
+import { AuthProvider } from 'react-oidc-context';
+import { RecoilRoot } from 'recoil';
+import useAuth from './use-auth';
+
+interface ContextWrapperProps {
+  children: React.ReactNode;
+}
+
+describe('useAuth', () => {
+  const OLD_ENV = process.env;
+  beforeEach(() => {
+    process.env = { ...OLD_ENV };
+  });
+
+  const contextWrapper = ({ children }: ContextWrapperProps) => (
+    <AuthProvider {...keycloak}>
+      <RecoilRoot>{children}</RecoilRoot>
+    </AuthProvider>
+  );
+
+  test('should call signIn successfully', () => {
+    const { result } = renderHook(() => useAuth(), {
+      wrapper: contextWrapper,
+    });
+
+    act(() => {
+      result.current.signIn(false);
+    });
+    expect(result.current.signIn).toBeTruthy();
+  });
+
+  test('should call signIn with SSO and no configs', () => {
+    const { result } = renderHook(() => useAuth(), {
+      wrapper: contextWrapper,
+    });
+
+    act(() => {
+      result.current.signIn(true);
+    });
+    expect(result.current.signIn).toBeTruthy();
+  });
+
+  test('should call signIn with SSO and available configs', () => {
+    process.env.SSO_AUTHORITY = 'http://localhost';
+    process.env.SSO_CLIENT_ID = 'dev-client';
+
+    const { result } = renderHook(() => useAuth(), {
+      wrapper: contextWrapper,
+    });
+
+    act(() => {
+      result.current.signIn(true);
+    });
+    expect(result.current.signIn).toBeTruthy();
+  });
+
+  test('should call signOut successfully', () => {
+    const { result } = renderHook(() => useAuth(), {
+      wrapper: contextWrapper,
+    });
+
+    act(() => {
+      result.current.signOut();
+    });
+    expect(result.current.signOut).toBeTruthy();
+  });
+});