我正在使用C#和.NET Core 2.0开发ASP.NET Core 2 web api。
我已经更改了一个方法来添加try-catch以允许我返回状态代码。
public IEnumerable<GS1AIPresentation> Get()
{
return _context
.GS1AI
.Select(g => _mapper.CreatePresentation(g))
.ToList();
}
更改为:
public IActionResult Get()
{
try
{
return Ok(_context
.GS1AI
.Select(g => _mapper.CreatePresentation(g))
.ToList());
}
catch (Exception)
{
return StatusCode(500);
}
}
但是现在我的Test方法存在问题,因为它现在返回IActionResult
而不是IEnumerable<GS1AIPresentation>
:
[Test]
public void ShouldReturnGS1Available()
{
// Arrange
MockGS1(mockContext, gs1Data);
GS1AIController controller =
new GS1AIController(mockContext.Object, mockMapper.Object);
// Act
IEnumerable<Models.GS1AIPresentation> presentations = controller.Get();
// Arrange
Assert.AreEqual(presentations.Select(g => g.Id).Intersect(gs1Data.Select(d => d.Id)).Count(),
presentations.Count());
}
我的问题在于:IEnumerable<Models.GS1AIPresentation> presentations = controller.Get();
。
我是否需要重构一个新方法来测试Select
?
此选择:
return _context
.GS1AI
.Select(g => _mapper.CreatePresentation(g))
.ToList();
或者我可以在IEnumerable<Models.GS1AIPresentation>
IActionResult
答案 0 :(得分:6)
控制器中调用的return Ok(...)
返回OkObjectResult
,该Asp.Net Core Action Results Explained派生自IActionResult
,因此您需要转换为该类型,然后访问其中的值。
[Test]
public void ShouldReturnGS1Available() {
// Arrange
MockGS1(mockContext, gs1Data);
var controller = new GS1AIController(mockContext.Object, mockMapper.Object);
// Act
IActionResult result = controller.Get();
// Assert
var okObjectResult = result as OkObjectResult;
Assert.IsNotNull(okObjectResult);
var presentations = okObjectResult.Value as IEnumerable<Models.GS1AIPresentation>;
Assert.IsNotNull(presentations);
Assert.AreEqual(presentations.Select(g => g.Id).Intersect(gs1Data.Select(d => d.Id)).Count(),
presentations.Count());
}