public void AddDiagnosysReturnsPatientDiagnosys()
{
//Arrange
repository.Setup(r => r.Exists(It.IsAny <object[]>())).ReturnsAsync(true);
diagnosysRepository.Setup(dr => dr.Exists(It.IsAny <object[]>())).ReturnsAsync(false);
diagnosysRepository.Setup(dr => dr.Post(It.IsAny <PatientDiagnosys>())).ReturnsAsync((PatientDiagnosys d) =>
{ return(d); });
long patientId = 1;
//Act
var result = (controller.AddDiagnosys(patientId, new PatientDiagnosys()).Result as OkObjectResult).Value;
//Assert
Assert.IsInstanceOfType(result, typeof(PatientDiagnosys));
Assert.AreEqual(patientId, (result as PatientDiagnosys).PatientId);
}