AddAsync 方法總是回傳 null
我模擬資料的代碼：
var mockFileService = new Mock<IFileService>();
var bytes = Encoding.UTF8.GetBytes("This is a dummy file");
IFormFile file = new FormFile(new MemoryStream(bytes), 0, bytes.Length, "Data", "dummy.pdf");
mockFileService.Setup(f => f.AddAsync(file, "pathToFolder", "nameFile")).ReturnsAsync("pathToFile");
_fileService = mockFileService.Object;
我模擬的界面：
public interface IFileService
{
Task<string> AddAsync(IFormFile file, string pathToFolder, string nameFile);
Task<string> AddAsync(byte[] file, string pathToFolder, string nameFile);
Task AddImagesJpegAsync(Image[] images, string path, string imagesPrefix);
Task<byte[]> GetAsync(string pathToFile);
void DeleteFolder(string path);
void CreateFolder(string path);
}
uj5u.com熱心網友回復：
在您的模擬設定中，您是這樣說的：
mockFileService.Setup(f => f.AddAsync(
file, "pathToFolder", "nameFile"))....
這就是說，只要AddAsync使用這些精確的引數值在您的模擬上呼叫該方法，并且對于物件參考，它也必須是您剛剛創建的同一個物件。相反，您應該使用It.AsAnyMoq 提供的方法，例如：
mockFileService.Setup(f => f.AddAsync(
It.AsAny<IFormFile>(), It.AsAny<string>(), It.AsAny<string>()))....
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