public async Task DeleteAllPoints_Should_ReturnOk()
{
// Arrange
var adapterMock = new Mock <ITodoPointAdapter>();
var loggerMock = new Mock <ILogger <PointController> >();
var todoIdForDeletePoints = 1;
var testPoints = GetTestPoints();
var testTodos = GetTestTodos(testPoints);
int countPointsBeforeDelete = testPoints.Count;
adapterMock.Setup(x => x.DeletePointsByTodoId(todoIdForDeletePoints))
.Callback(() => testPoints.Clear());
var controller = new PointController(adapterMock.Object, loggerMock.Object);
// Act
var result = await controller.DeleteAllPoints(todoIdForDeletePoints);
var todo = testTodos.Where(x => x.TodoId == todoIdForDeletePoints).FirstOrDefault();
// Assert
var actionResult = Assert.IsAssignableFrom <IActionResult>(result);
Assert.IsAssignableFrom <OkResult>(actionResult);
Assert.Equal(2, countPointsBeforeDelete);
Assert.Empty(todo.Points);
}