Gavin said:
I'll personally award three kudos points to anyone who implements a patch
to apply some level of highlighting to the console output of a unit test.
It should try to load the 'text/highlight' package available on the RAA
(or some other package if appropriate) and continue gracefully without
highlighting if that library is not available.
I have spend some time this morning.. attempting to replace the $stdout
and $stderr filedescriptors with a pipe. Whenever something is outputted
to stdout it could be colored green, and red output if stderr.
I have done it before.. but no success today.
If you read this, then it means I never made it.
Earlier I have used fork, where the childprocess writes into one end of
the pipe, and where the parentprocess reads from the other end.
However there is no forking here, so what matters is correct replacement
of filedescriptor#1... however its behaving weird.
server> expand -t2 col.rb
BLACK = "\x1b[30m"
RED = "\x1b[31m"
GREEN = "\x1b[32m"
#puts "#{RED}hello#{BLACK} world"
def capture(&block)
x = $stdout.dup
p x, x.isatty
p $stdout, $stdout.isatty
r1, w1 = IO.pipe # stdout
fdes = [r1]
thread = Thread.new do
loop do
res = select(fdes, nil, nil, 0.1)[0]
if res.include?(r1)
unless r1.eof
x.print "#{GREEN} #{r1.read} #{BLACK}"
else
fdes.delete r1
thread.kill if fdes == []
end
end
end
end
#$stdout.reopen(w1)
$stdout = w1
op = [$stdout.inspect, $stdout.isatty.inspect]
block.call
w1.flush
#w1.close
$stdout.reopen(x)
sleep(0.5) # r1.eof?
thread.kill
r1.close
#$stdout.reopen(x)
#$stdout = STDOUT
puts op.join("\n")
end
puts "before"
capture do
puts "stdout"
$stderr.puts "stderr"
puts "stdout"
end
puts "after"
server>
