Testing of rb-readline (especially on Windows) about rb-readline

[Spakman]

For those following along at home, I have created a branch - "childprocess" - for implementing integration tests in rb-readline. I've not managed to get this working under Windows yet (although this should be possible, since ChildProcess is a platform independent process control library).

[rdp]

the kicker is rb-readline doesn't appear to have a comprehensive test suite
I was able to get some automation test working on it in windows by setting
$rb_readline_use_file_io_on_windows = true
before requiring it, in windows ( so that it would use read/write-able file handles ), I...think that would be good enough for windows' tests, as otherwise it calls straight into the windows api to read from the keyboard, so I suppose you could simulate it with windows API calls: https://github.com/ffi/ffi/wiki/Windows-Examples
that might work too.

[Spakman]

Hi rdp!

I've looked around, but can't see anything about $rb_readline_use_file_io_on_windows (other than in your repo - but it doesn't appear to do anything there).

We're hoping to create a test suite using ChildProcess[1], a platform independent abstraction layer for manipulating forked processes.

1 - https://github.com/jarib/childprocess

[rdp]

it's only in my repo, and on a line that raises an exception, which causes rb-readline to default to File based I/O (that's how it's used).

If you can get it working some other way that's cool, too, though may be difficult because it calls directly into msvcrt's _getch which is not pipable, that I'm aware.
Luis has some background on how mingw rubys at times hangs etc. when trying to redirect stdout, stderr, etc.
Good luck!
-r

[Spakman]

In #66, @luislavena wrote:

Perhaps we can abstract reading from terminal into vt100 compatible
adapters and build a simple adapter for testing, so reading from it would
be more easy.

[Spakman]

@luislavena I've been using a Windows XP VM for testing rb-readline. Do you know if there are any functional differences I should be aware of in later versions of Windows? Will Windows 8 change things from a Ruby developer point of view?

[luislavena]

@Spakman as long desktop API I'm aware of, the functionality is the same.

I recommend you test always using cmd.exe as console host process.