from testutils import *
from tempfile import mkstemp

setup_tests()

expect_prompt()
    
message = '''Test very simple pipe application:
echo hello |& rev'''

sendline('echo hello |& rev')
expect('olleh', message)

expect_prompt()

_, tmpfile = mkstemp()

try:
    exe = make_test_program(open(os.path.dirname(__file__) + "/writetostderr.c").read())
    sendline('{0} |& cat > {1}'.format(exe, tmpfile))
    expect_prompt()

    with open(tmpfile) as fd:
        content = fd.read()
        assert 'stderr\nstdout\n' == content
finally:
    removefile(exe)
    removefile(tmpfile)

test_success()