def test_Popen_non_zero_returncode(self, node_package_command):
command = Command(node_package_command)
process = command.Popen('--non-existent',
stdout=PIPE,
stderr=PIPE,
universal_newlines=True)
out, err = process.communicate()
assert process.returncode is not 0
assert not out and err
def test_Popen(self, node_package_command, node_package_command_args,
node_package_command_output_regex):
command = Command(node_package_command)
process = command.Popen(node_package_command_args,
stdout=PIPE,
stderr=PIPE,
universal_newlines=True)
out, err = process.communicate()
assert node_package_command_output_regex.match(out.strip())
assert not err