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"""
Unit/functional testing for argparse customizations in cmd2
Copyright 2018 Eric Lin <anselor@gmail.com>
Released under MIT license, see LICENSE file
"""
import pytest
from cmd2.argparse_completer import ACArgumentParser
def test_acarg_narg_empty_tuple():
with pytest.raises(ValueError) as excinfo:
parser = ACArgumentParser(prog='test')
parser.add_argument('invalid_tuple', nargs=())
assert 'Ranged values for nargs must be a tuple of 2 integers' in str(excinfo.value)
def test_acarg_narg_single_tuple():
with pytest.raises(ValueError) as excinfo:
parser = ACArgumentParser(prog='test')
parser.add_argument('invalid_tuple', nargs=(1,))
assert 'Ranged values for nargs must be a tuple of 2 integers' in str(excinfo.value)
def test_acarg_narg_tuple_triple():
with pytest.raises(ValueError) as excinfo:
parser = ACArgumentParser(prog='test')
parser.add_argument('invalid_tuple', nargs=(1, 2, 3))
assert 'Ranged values for nargs must be a tuple of 2 integers' in str(excinfo.value)
def test_acarg_narg_tuple_order():
with pytest.raises(ValueError) as excinfo:
parser = ACArgumentParser(prog='test')
parser.add_argument('invalid_tuple', nargs=(2, 1))
assert 'Invalid nargs range. The first value must be less than the second' in str(excinfo.value)
def test_acarg_narg_tuple_negative():
with pytest.raises(ValueError) as excinfo:
parser = ACArgumentParser(prog='test')
parser.add_argument('invalid_tuple', nargs=(-1, 1))
assert 'Negative numbers are invalid for nargs range' in str(excinfo.value)
def test_acarg_narg_tuple_zero_base():
parser = ACArgumentParser(prog='test')
parser.add_argument('tuple', nargs=(0, 3))
def test_acarg_narg_tuple_zero_to_one():
parser = ACArgumentParser(prog='test')
parser.add_argument('tuple', nargs=(0, 1))
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