def test_validate_pattern_double_ident():
"""A pattern with identifier used twice is incorrect"""
with pytest.raises(adventurelib.InvalidCommand) as exc:
Pattern("take I with I")
err = str(exc.value)
assert err == "Invalid command 'take I with I'"\
" Identifiers may only be used once"
def test_word_combinations_3():
combos = Pattern.word_combinations(have=4, placeholders=3)
assert list(combos) == [
(2, 1, 1),
(1, 2, 1),
(1, 1, 2)
]
def test_word_combinations_2():
combos = Pattern.word_combinations(have=4, placeholders=2)
assert list(combos) == [
(3, 1),
(2, 2),
(1, 3)
]
def test_word_combinations_4():
combos = Pattern.word_combinations(have=5, placeholders=3)
assert list(combos) == [
(3, 1, 1),
(2, 2, 1),
(2, 1, 2),
(1, 3, 1),
(1, 2, 2),
(1, 1, 3),
]
def test_multiple_multiword_captures():
pat = Pattern('give ITEM to PERSON')
matches = pat.match(['give', 'golden', 'apple', 'to', 'evil', 'wizard'])
assert matches == {'item': 'golden apple', 'person': 'evil wizard'}
def test_capturing_multiword():
matches = Pattern('take ITEM').match(['take', 'golden', 'apple'])
assert matches == {'item': 'golden apple'}
def test_capturing_match():
matches = Pattern('take ITEM').match(['take', 'apple'])
assert matches == {'item': 'apple'}
def test_multiple_words_mismatch_length():
matches = Pattern('take apple').match(['take', 'golden', 'apple'])
assert matches is None
def test_multiple_words_mismatch():
matches = Pattern('take apple').match(['take', 'tortoise'])
assert matches is None
def test_multiple_words():
pat = Pattern('take apple')
matches = pat.match(['take', 'apple'])
assert matches == {}
def test_match():
matches = Pattern('apple').match(['apple'])
assert matches == {}
def test_no_match_extra_words():
matches = Pattern('look').match(['look', 'at', 'butler'])
assert matches is None
def test_no_match_different_words():
matches = Pattern('look').match(['apple'])
assert matches is None
