c# - 单元测试任务<IActionResult>

Question

我正在开发 .Net Core Web API 应用程序。我的 Controller 上有以下方法:

[HttpGet]
public async Task<IActionResult> GetArtists()
{
  var permissions = await _permissionsService.GetPermissionsAsync(HttpContext);
  var artists = _artistsService.GetAllArtists(permissions.UserId, permissions.IsAdministrator);
  return Ok( new { artists });
}

我想编写一个测试来断言我确实得到了 200好的结果。

我试过以下方法:

[TestMethod]
public void GetArtists_ReturnsOKStatusCode()
{
  // arrange
  var artistsController = new ArtistsController(_mockPermissionsService.Object, _mockArtistsService.Object, _mockLogger.Object);
  // act
  var getArtistsResult = artistsController.GetArtists();
  var okResult = getArtistsResult as OkObjectResult;

  Assert.IsInstanceOfType(okResult, OkObjectResult)
}

但是我在转换到 OkObjectResult 的行中遇到错误.它说我无法转换类型 Task<IActionResult>至 OkObjectResult

Answer 1

调用异步方法时需要使用await:

var getArtistsResult = await artistsController.GetArtists();

这反过来使您的测试方法async Task:

[TestMethod]
public async Task GetArtists_ReturnsOKStatusCode()
{
  ...
}