c# - 如何创建 IOptions 的模拟实例？

Question

我正在使用 IOptions<>根据 https://learn.microsoft.com/en-us/aspnet/core/fundamentals/configuration/options .

我有以下 Controller 。

using Microsoft.Extensions.Options;
public class MyController : Controller
{
    private readonly ILogger<SourceController> _logger;
    private readonly MyOptions _option;

    public SourceController(ILogger<SourceController> logger, IOptions<SyncOptions> optionAccessor)
    {
        _logger = logger;
        _option = optionAccessor.Value;
    }

现在我正在创建一个单元测试设置。如何模拟 IOptions()？

MyTest() { // Test constructor
    var loggerFactory = new LoggerFactory().AddConsole(LogLevel.Information).AddDebug().AddNLog();
    loggerFactory.ConfigureNLog("nlog.config");
    logger = loggerFactory.CreateLogger<MyController>();

    option = new Options<MyOptions>(); // Error! How to mock IOptions<MyOptions>()?

    app = new MyController(logger, option);

Answer 1

使用辅助类 Microsoft.Extensions.Options.Options

尝试替换

option = new Options<MyOptions>(); 

与

option = Options.Create(new MyOptions());