I figured it out.  In 0.7.3, Rake forked the process to run the ruby 
binary, e.g. "c:\ruby\bin\ruby.exe ...", whereas in 0.8.7 it uses the 
windows 'call' command, e.g. "call c:\ruby\bin\ruby.exe ...".

Not backward compatible at all.

Brian Hartin wrote:
> Hi all,
> 
> I'm having a problem running tests with rake 0.8.7 on Windows.  My
> 'rake:test' can't find the test files, e.g. '/test/unit/xxx_test.rb'.  I
> traced the problem to Rake::TestTask, where it forks a new ruby process
> to run the rake_test_loader.rb script.  The 'current directory', from
> which I ran 'rake:test', is lost.  The new ruby process thinks it's
> running in my user home directory.  For rake 0.7.3, this does not occur,
> and the tests run find.  However, I can't see any code change that would
> explain this difference?
> 
> Does anyone know of a workaround, or why this happens?  Rolling back to
> rake 0.7.3 works, but is clunky since our version of Rails (1.2.5) will
> install the Rake 0.8.7 by default.
> 
> Thanks,
> 
> Brian

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