public async Task TestAddImage_GetValidImage_EditImageSuccessfully()
{
// Arrange
imageService.Setup(i => i.EditImageAsync(imageModel));
AdminController controller = new AdminController(filmService.Object, mapper, imageService.Object);
// Act
var result = await controller.AddImage(editImageModel) as OkResult;
// Assert
Assert.NotNull(result);
Assert.Equal(200, result.StatusCode);
}