使用SystemWrapper和Rhino mock进行单元测试
本文关键字:单元测试 mock Rhino SystemWrapper 使用 | 更新日期: 2023-09-27 18:01:48
我有一个方法来备份一些文件:
public void MakeBackup(IFileWrap file, string path)
{
if (path == null)
throw new ArgumentNullException();
Console.WriteLine();
string backups = Environment.CurrentDirectory + @"'Backups'";
if (!Directory.Exists(backups))
Directory.CreateDirectory(backups);
if (file.Exists(path))
{
file.Copy(path,backups + Path.GetFileName(path),overwrite: true);
Console.WriteLine("Backup of the " + Path.GetFileName(path) + " lies in the " + backups);
}
}
我试图通过使用SystemWrapper和Rhino mock来测试它:
[TestMethod]
public void MakeBackupTest()
{
IFileWrap fileRepository = MockRepository.GenerateMock<IFileWrap>();
fileRepository.Expect(x => x.Exists(@"G:'1.txt"));
fileRepository.Expect(x => x.Copy(@"G:'1.txt", Environment.CurrentDirectory + @"'Backups'1.txt", overwrite: true));
new Windows().MakeBackup(fileRepository,@"G:'1.txt");
fileRepository.VerifyAllExpectations();
}
上面的测试失败。我做错了什么?
您没有为fileRepository.Exists
设置返回值-默认值将是false
。它应该是这样的:
fileRepository.Expect(x => x.Exists(@"G:'1.txt")).Return(true);