public async Task GetVehicleListAsync_WithAllVehicles_ReturnVehicleResponse()
        {
            // Arrange
            var vehicles = new List <Vehicle>
            {
                new Vehicle
                {
                    Id          = Guid.NewGuid(),
                    VehicleId   = 1,
                    Number      = "A-001",
                    Model       = "Honda City",
                    Description = "Blue Color"
                }
            };

            vehiclesRepository.GetVehicleListAsync().Returns(Task.FromResult(vehicles));

            // Act
            var responses = await vehiclesService.GetVehicleListAsync();

            // Assert
            Assert.NotNull(responses);
            Assert.True(responses.Count > 0);
            Assert.IsType <List <VehicleResponse> >(responses);
        }