This is a common problem that people will run into; not only from a
"mocking" perspective but more from a unit testing perspective.
There are many who would state that you are performing an integration test
versus a unit test and other who would tell you to not attempt to test
"infrastructure concern."
>From a mocking perspective... some classes just simply cannot be mocked or
(better phrased) don't lend themselves to being mocked.
For File and Directory concerns, I have seen some that will attempt to
create a wrapper around this functionality to enable (or promote) unit
testing. Your mileage will vary on this... personally I find it a bad
practice.
There are alternative options including allowing this concern to be handled
in an integration test and not a unit test.
The alternatives, however, are based on what it is that you are actually
hoping to achieve with the unit test. Are you trying to test GetWeekOfYear
or that the files/directories are handled correctly?
On Monday, August 5, 2013 5:01:00 AM UTC-4, Mitesh Agrawal wrote:
>
> Hi I have following method in my class and I want to write unit test for
> it using nunit and rhino mocks. My method moves all the folders from source
> path to destination path, I am new to NUnit and Rhinomocks and I dont know
> how to mock System.IO.Directory or System.IO.DirectoryInfo objects. I have
> tried everything on google.
>
> public void MoveDirectories()
> {
> var dirList = (from f in new
> DirectoryInfo(sourceDir).EnumerateDirectories("*")
> select f).ToList();
>
> destinationDir = destinationDir + "//" + newDir;
>
> foreach (var d in dirList)
> {
> if (GetWeekOfYear(d.CreationTime) == weekNo)
> {
> if (!Directory.Exists(destinationDir))
> {
> Directory.CreateDirectory(destinationDir);
> }
>
> if (!Directory.Exists(destinationDir + "//" + d.Name))
> {
> Console.WriteLine("Move Folder " + d.FullName + "
> TO " + destinationDir + "//" + d.Name);
> Directory.Move(d.FullName, destinationDir + "//" +
> d.Name);
> }
> }
> }
> }
>
> Here method GetWeekOfYear returns the Week number for a current date or
> date supplied.
> If any one can help me to achieve this.
>
> Thanks in advance,
> Mitz.
>
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