def test_capture_out():
""" A simple test to see if we can execute a process and get the output.
"""
s = StringIO()
p = PipedProcess('echo 1', out_callback=s.write, )
p.start()
p.join()
result = s.getvalue().rstrip()
assert result == '1'
def test_io():
""" Checks that we can send characters on stdin to the process.
"""
s = StringIO()
p = PipedProcess(sys.executable + ' -c "a = raw_input(); print a"',
out_callback=s.write, )
p.start()
test_string = '12345\n'
while not hasattr(p, 'process'):
sleep(0.1)
p.process.stdin.write(test_string)
p.join()
result = s.getvalue()
assert result == test_string