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import os
import sys
import unittest
from osrf_pycommon.process_utils import execute_process_nopty
this_dir = os.path.dirname(os.path.abspath(__file__))
test_script = os.path.join(
this_dir,
'fixtures',
'execute_process',
'stdout_stderr_ordering.py')
python = sys.executable
file_nl = b"""
"""
nl = os.linesep.encode()
class TestProcessUtilsExecuteNoPty(unittest.TestCase):
def test__process_incomming_lines(self):
pil = execute_process_nopty._process_incoming_lines
# Test with no left overs and no new incoming
left_overs = b''
incoming = b''
self.assertEqual((None, left_overs), pil(incoming, left_overs))
# Test with left overs, but no new incoming
left_overs = b'something'
incoming = b''
self.assertEqual((b'', left_overs), pil(incoming, left_overs))
# Test with no left overs, but new incoming
left_overs = b''
incoming = nl.join([b'one', b'two'])
self.assertEqual((b'one' + nl, b'two'), pil(incoming, left_overs))
# Test with left overs and new incoming with prefixed nl
left_overs = b'something'
incoming = (nl + b'else')
expected = (b'something' + nl, b'else')
self.assertEqual(expected, pil(incoming, left_overs))
def test__execute_process_nopty_combined_unbuffered(self):
exc_nopty = execute_process_nopty._execute_process_nopty
# Test ordering with stdout and stderr combined and Python unbuffered
cmd = [python, "-u", test_script]
result = b""
for out, err, ret in exc_nopty(cmd, None, None, False, True):
if out is not None:
result += out
if err is not None:
result += err
if ret is not None:
break
expected = b"""\
out 1
err 1
out 2
"""
expected = expected.replace(file_nl, nl)
expected = sorted(expected.splitlines(True))
result = sorted(result.splitlines(True))
self.assertEqual(expected, result)
def test__execute_process_nopty_unbuffered(self):
exc_nopty = execute_process_nopty._execute_process_nopty
# Test ordering with stdout and stderr combined and Python unbuffered
cmd = [python, "-u", test_script]
result = b""
for out, err, ret in exc_nopty(cmd, None, None, False, False):
if out is not None:
result += out
if err is not None:
result += err
if ret is not None:
break
expected = b"""\
out 1
err 1
out 2
"""
expected = expected.replace(file_nl, nl)
expected = sorted(expected.splitlines(True))
result = sorted(result.splitlines(True))
self.assertEqual(expected, result)
def test__execute_process_nopty_combined(self):
exc_nopty = execute_process_nopty._execute_process_nopty
# Test ordering with stdout and stderr combined
cmd = [python, test_script]
result = b""
for out, err, ret in exc_nopty(cmd, None, None, False, True):
if out is not None:
result += out
if err is not None:
result += err
if ret is not None:
break
expected = b"""\
out 1
err 1
out 2
"""
expected = expected.replace(file_nl, nl)
expected = sorted(expected.splitlines(True))
result = sorted(result.splitlines(True))
self.assertEqual(expected, result)
def test__execute_process_nopty(self):
exc_nopty = execute_process_nopty._execute_process_nopty
# Test ordering with stdout and stderr separate
cmd = [python, test_script]
result = b""
for out, err, ret in exc_nopty(cmd, None, None, False, False):
if out is not None:
result += out
if err is not None:
result += err
if ret is not None:
break
expected = b"""\
out 1
err 1
out 2
"""
expected = expected.replace(file_nl, nl)
expected = sorted(expected.splitlines(True))
result = sorted(result.splitlines(True))
self.assertEqual(expected, result)
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