def parses_sys_argv_style_list_of_strings(self):
"parses sys.argv-style list of strings"
# Doesn't-blow-up tests FTL
mytask = Context(name="mytask")
mytask.add_arg("arg")
p = Parser(contexts=[mytask])
p.parse_argv(["mytask", "--arg", "value"])
class add_arg:
def setup(self):
self.c = Context()
def can_take_Argument_instance(self):
a = Argument(names=("foo",))
self.c.add_arg(a)
assert self.c.args["foo"] is a
def can_take_name_arg(self):
self.c.add_arg("foo")
assert "foo" in self.c.args
def can_take_kwargs_for_single_Argument(self):
self.c.add_arg(names=("foo", "bar"))
assert "foo" in self.c.args and "bar" in self.c.args
def raises_ValueError_on_duplicate(self):
self.c.add_arg(names=("foo", "bar"))
with raises(ValueError):
self.c.add_arg(name="bar")
def adds_flaglike_name_to_dot_flags(self):
"adds flaglike name to .flags"
self.c.add_arg("foo")
assert "--foo" in self.c.flags
def adds_all_names_to_dot_flags(self):
"adds all names to .flags"
self.c.add_arg(names=("foo", "bar"))
assert "--foo" in self.c.flags
assert "--bar" in self.c.flags
def adds_true_bools_to_inverse_flags(self):
self.c.add_arg(name="myflag", default=True, kind=bool)
assert "--myflag" in self.c.flags
assert "--no_myflag" in self.c.inverse_flags
assert self.c.inverse_flags["--no_myflag"] == "--myflag"
def inverse_flags_works_right_with_task_driven_underscored_names(self):
# Use a Task here instead of creating a raw argument, we're partly
# testing Task.get_arguments()' transform of underscored names
# here. Yes that makes this an integration test, but it's nice to
# test it here at this level & not just in cli tests.
@task
def mytask(c, underscored_option=True):
pass
self.c.add_arg(mytask.get_arguments()[0])
flags = self.c.inverse_flags["--no_underscored_option"]
assert flags == "--underscored_option"
def turns_single_character_names_into_short_flags(self):
self.c.add_arg("f")
assert "-f" in self.c.flags
assert "--f" not in self.c.flags
def adds_positional_args_to_positional_args(self):
self.c.add_arg(name="pos", positional=True)
assert self.c.positional_args[0].name == "pos"
def positional_args_empty_when_none_given(self):
assert len(self.c.positional_args) == 0
def positional_args_filled_in_order(self):
self.c.add_arg(name="pos1", positional=True)
assert self.c.positional_args[0].name == "pos1"
self.c.add_arg(name="abc", positional=True)
assert self.c.positional_args[1].name == "abc"
def positional_arg_modifications_affect_args_copy(self):
self.c.add_arg(name="hrm", positional=True)
assert self.c.args["hrm"].value == self.c.positional_args[0].value
self.c.positional_args[0].value = 17
assert self.c.args["hrm"].value == self.c.positional_args[0].value