Re: [Haskell-cafe] How to Hijack stdin,err,out, thread safely?

On 2015/07/01 4:00, Brandon Allbery wrote:

Handles are process level, not thread level, in all supported operating systems. If something is writing to stderr then it is writing to a process level entity and there is no way to capture it at the level of a thread.

Oh, yes. I get it. So the way I wanted to take in is completely wrong.

On 2015/07/01 4:02, Roman Cheplyaka wrote:

It's not clear from your email whether you are concerned about the output of QuickCheck itself or the functions you're testing.

Sorry for my bad writing. I need the former.

In the former case, there is a way to get the output of QuickCheck as a String without printing it. Take a look at tasty-quickcheck's code for an example.

It seems I can work it out in the same way with tasty-qc. Thanks! -- Hiromi ISHII konn.jinro@gmail.com