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|
"""
Unit Tests For Utility Functions
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"""
from argparse import ArgumentParser, _SubParsersAction
import pytest
from argh.utils import SubparsersNotDefinedError, get_subparsers, unindent
def test_util_unindent():
"Self-test the unindent() helper function"
# target case
one = """
a
b
c
"""
assert (
unindent(one)
== """
a
b
c
"""
)
# edge case: lack of indentation on first non-empty line
two = """
a
b
c
"""
assert unindent(two) == two
# edge case: unexpectedly unindented in between
three = """
a
b
c
"""
assert (
unindent(three)
== """
a
b
c
"""
)
def test_get_subparsers_existing() -> None:
parser = ArgumentParser()
parser.add_subparsers(help="hello")
sub_parsers_action = get_subparsers(parser)
assert isinstance(sub_parsers_action, _SubParsersAction)
assert sub_parsers_action.help == "hello"
def test_get_subparsers_create() -> None:
parser = ArgumentParser()
sub_parsers_action = get_subparsers(parser, create=True)
assert isinstance(sub_parsers_action, _SubParsersAction)
def test_get_subparsers_error() -> None:
parser = ArgumentParser()
with pytest.raises(SubparsersNotDefinedError):
get_subparsers(parser)
|
