'); });  test('function expression with displayName assigned to a variable', () => {   const Foo = function() {};   Foo.displayName = 'Bar';   expect(getDisplayName(Foo)).toBe('Bar'); });  test('function expression with displayName assigned to a variable', () => {   const Foo = function() {};   Foo.displayName = 'Bar';   expect(getDisplayName(Foo)).toBe('Bar'); });  test('