Testament Demo: "Running a single test" is not working

[Clavismax]

Step by step I follow this: 
<http://nim-lang.github.io/Nim/testament.html#running-a-single-test>

It's not working. I got this output:

Any Ideas for helping me?
    
    
    PS K:\40-Nim\Projects> testament run test0.nim
    fatal.nim(53)            sysFatal
    Error: unhandled exception: specialpaths.nim(49, 12) `false` file must 
match this pattern: '/pathto/tests/dir/**/tfile.nim', got: 'test0.nim' 
[AssertionDefect]
    PS K:\40-Nim\Projects>
    
    
    Run