public async Task GetVehicleOwners_WhenCalled_ReturnsOkResult()
{
// Arrange
_mockOwnerRepository.Setup(repo => repo.GetVehicleOwnersAsync())
.ReturnsAsync((new List <VehicleOwners>
{
new VehicleOwners(),
new VehicleOwners()
}));
// Act
var result = await _controller.GetVehicleOwners();
// Assert
Assert.NotNull(result);
Assert.IsType <OkObjectResult>(result.Result);
}