def test_cmd_call_error_bad_commadn(trace):
cmd = Interpreter()
cmd.trace = trace
cmd.stdin = io.StringIO("fun 2 3 5\n")
cmd.stdout = io.StringIO()
cmd.stderr = io.StringIO()
cmd.run()
debug_cmd(cmd)
assert cmd.stdout.getvalue() == ""
assert cmd.stderr.getvalue() == """\
def test_cmd_shortcut():
cmd = Interpreter(content={"$": "fun"})
@cmd.command(has_arguments=False)
def fun(interpreter, *args):
interpreter.output("+".join(args))
cmd.stdin = io.StringIO("$a b cd e\n $ ab cd e")
cmd.stdout = io.StringIO()
cmd.stderr = io.StringIO()
cmd.run()
assert cmd.stdout.getvalue() == """\
def test_cmd_call_error_bad_arg(trace):
cmd = Interpreter()
cmd.trace = trace
@argument("args", type=int, nargs='+')
@cmd.command
def fun(interpreter, args):
interpreter.output(sum(args))
cmd.stdin = io.StringIO("fun 2 3 5\nfun 2 t 5")
cmd.stdout = io.StringIO()
cmd.stderr = io.StringIO()
cmd.run()
debug_cmd(cmd)
assert cmd.stdout.getvalue() == """\
10
"""
assert cmd.stderr.getvalue() == """\