How to do integration testing in .NET with real files?

Question

I have some classes that implements some logic related to file system and files. For example, I am performing following tasks as part of this logic:

• checking i

Answer 1

I'd go with single test folder. For various test cases you can put different valid/invalid files into that folder as part of context setup. In test teardown just remove those files from folder.

E.g. with Specflow:

Given configuration file not exist
When something
Then foo

Given configuration file exists
And some dll not exists
When something
Then bar

Define each context setup step as copying/not copying appropriate file to your folder. You also can use table for defining which file should be copied to folder:

Given some scenario
| FileName         |
| a.config         |
| b.invalid.config |
When something
Then foobar