iNaturalistReactNative/tests/integration/sharedHooks/useCurrentUser.test.js

import { renderHook } from "@testing-library/react-native";
import safeRealmWrite from "sharedHelpers/safeRealmWrite";
import { useCurrentUser } from "sharedHooks";
import factory from "tests/factory";

const mockUser = factory( "LocalUser", {
  login: "fake_login",
  signedIn: true
} );

describe( "useCurrentUser", () => {
  beforeEach( async ( ) => {
    // Write mock user to realm
    safeRealmWrite( global.realm, ( ) => {
      global.realm.create( "User", mockUser );
    }, "create current user, useCurrentUser test" );
  } );

  it( "should return current user", () => {
    const { result } = renderHook( () => useCurrentUser() );
    const user = global.realm.objects( "User" ).filtered( "signedIn == true" )[0];
    expect( user.login ).toEqual( result.current.login );
  } );
} );