public void GetCredentialByAppointmentType_Success()
        {
            // Act
            var response = controller.GetCredentialByAppointmentType(appointmentTypeID);

            // Assert
            Assert.IsTrue(response != null, "Response can't be null");
            Assert.IsTrue(response.DataItems != null, "Data items can't be null");
            Assert.IsTrue(response.DataItems.Count > 0, "Atleast one credential must exists.");
        }