public async void HttpGetAllPatient_HappyPath()
{
//ARRANGE
var expected = typeof(OkObjectResult);
var fakePageNumber = 1;
var fakeUserResult = A.Fake <List <PatientDTO> >();
var fakeService = A.Fake <PatientServices>();
var fakeHelper = A.Fake <IHelperValidationSSN>();
A.CallTo(() => fakeService.AllPatients(fakePageNumber)).Returns(fakeUserResult);
var sut = new PatientController(fakeService, fakeHelper);
//ACT
var result = await sut.AllPatients(1);
//ASSERT
Assert.IsType(expected, result);
}