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import subprocess
def assertEqual(a, b):
if a != b:
raise Exception(
'expected {!r} == {!r}, but was disappointed'.format(a, b))
def _run_echo(ctx, args):
cmd = '/bin/echo'
p = subprocess.Popen(
[cmd] + args, stdout=subprocess.PIPE, stderr=subprocess.PIPE,
text=True)
out, err = p.communicate()
ctx["stdout"] = out
ctx["stderr"] = err
ctx["exit_code"] = p.returncode
def run_echo_without_args(ctx):
_run_echo(ctx, [])
def run_echo_with_args(ctx, args=None):
_run_echo(ctx, args.split())
def exit_code_is_zero(ctx, exit_code=None):
exit_code = int(exit_code)
assertEqual(ctx['exit_code'], exit_code)
def stdout_is_a_newline(ctx):
assertEqual(ctx['stdout'], '\n')
def stdout_is_text(ctx, text=None):
assertEqual(ctx['stdout'], text + '\n')
def stderr_is_empty(ctx):
assertEqual(ctx['stderr'], '')
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