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import pytest
from sqlalchemy_utils import Ltree
class TestLtree:
def test_init(self):
assert Ltree('path.path') == Ltree(Ltree('path.path'))
def test_constructor_with_wrong_type(self):
with pytest.raises(TypeError) as e:
Ltree(None)
assert str(e.value) == (
"Ltree() argument must be a string or an Ltree, not 'NoneType'"
)
def test_constructor_with_invalid_code(self):
with pytest.raises(ValueError) as e:
Ltree('..')
assert str(e.value) == "'..' is not a valid ltree path."
@pytest.mark.parametrize(
'code',
(
'path',
'path.path',
'1_.2',
'_._',
)
)
def test_validate_with_valid_codes(self, code):
Ltree.validate(code)
@pytest.mark.parametrize(
'path',
(
'',
'.',
'path.',
'path..path',
'path.path..path',
'path.path..',
'path.รครถ',
)
)
def test_validate_with_invalid_path(self, path):
with pytest.raises(ValueError) as e:
Ltree.validate(path)
assert str(e.value) == (
f"'{path}' is not a valid ltree path."
)
@pytest.mark.parametrize(
('path', 'length'),
(
('path', 1),
('1.1', 2),
('1.2.3', 3)
)
)
def test_length(self, path, length):
assert len(Ltree(path)) == length
@pytest.mark.parametrize(
('path', 'subpath', 'index'),
(
('path.path', 'path', 0),
('1.2.3', '2.3', 1),
('1.2.3.4', '2.3', 1),
('1.2.3.4', '3.4', 2)
)
)
def test_index(self, path, subpath, index):
assert Ltree(path).index(subpath) == index
@pytest.mark.parametrize(
('path', 'item_slice', 'result'),
(
('path.path', 0, 'path'),
('1.1.2.3', slice(1, 3), '1.2'),
('1.1.2.3', slice(1, None), '1.2.3'),
)
)
def test_getitem(self, path, item_slice, result):
assert Ltree(path)[item_slice] == result
@pytest.mark.parametrize(
('path', 'others', 'result'),
(
('1.2.3', ['1.2.3', '1.2'], '1'),
('1.2.3.4.5', ['1.2.3', '1.2.3.4'], '1.2'),
('1.2.3.4.5', ['3.4', '1.2.3.4'], None),
('1.2', ['1.2.3', '1.2.4'], '1')
)
)
def test_lca(self, path, others, result):
assert Ltree(path).lca(*others) == result
@pytest.mark.parametrize(
('path', 'other', 'result'),
(
('1.2.3', '4.5', '1.2.3.4.5'),
('1', '1', '1.1'),
)
)
def test_add(self, path, other, result):
assert Ltree(path) + other == result
@pytest.mark.parametrize(
('path', 'other', 'result'),
(
('1.2.3', '4.5', '4.5.1.2.3'),
('1', '1', '1.1'),
)
)
def test_radd(self, path, other, result):
assert other + Ltree(path) == result
@pytest.mark.parametrize(
('path', 'other', 'result'),
(
('1.2.3', '4.5', '1.2.3.4.5'),
('1', '1', '1.1'),
)
)
def test_iadd(self, path, other, result):
ltree = Ltree(path)
ltree += other
assert ltree == result
@pytest.mark.parametrize(
('path', 'other', 'result'),
(
('1.2.3', '2', True),
('1.2.3', '3', True),
('1', '1', True),
('1', '2', False),
)
)
def test_contains(self, path, other, result):
assert (other in Ltree(path)) == result
@pytest.mark.parametrize(
('path', 'other', 'result'),
(
('1', '1.2.3', True),
('1.2', '1.2.3', True),
('1.2.3', '1.2.3', True),
('1.2.3', '1', False),
('1.2.3', '1.2', False),
('1', '1', True),
('1', '2', False),
)
)
def test_ancestor_of(self, path, other, result):
assert Ltree(path).ancestor_of(other) == result
@pytest.mark.parametrize(
('path', 'other', 'result'),
(
('1', '1.2.3', False),
('1.2', '1.2.3', False),
('1.2', '1.2.3', False),
('1.2.3', '1', True),
('1.2.3', '1.2', True),
('1.2.3', '1.2.3', True),
('1', '1', True),
('1', '2', False),
)
)
def test_descendant_of(self, path, other, result):
assert Ltree(path).descendant_of(other) == result
def test_getitem_with_other_than_slice_or_in(self):
with pytest.raises(TypeError):
Ltree('1.2')['something']
def test_index_raises_value_error_if_subpath_not_found(self):
with pytest.raises(ValueError):
Ltree('1.2').index('3')
def test_equality_operator(self):
assert Ltree('path.path') == 'path.path'
assert 'path.path' == Ltree('path.path')
assert Ltree('path.path') == Ltree('path.path')
def test_non_equality_operator(self):
assert Ltree('path.path') != 'path.'
assert not (Ltree('path.path') != 'path.path')
def test_hash(self):
assert hash(Ltree('path')) == hash('path')
def test_repr(self):
assert repr(Ltree('path')) == "Ltree('path')"
def test_str(self):
ltree = Ltree('path.path')
assert str(ltree) == 'path.path'
def test_lt(self):
assert Ltree('1') < Ltree('2')
assert Ltree('1.2.3') < Ltree('1.2.4')
assert Ltree('1.2.3') < Ltree('1.2.3.4')
def test_lte(self):
assert Ltree('1.2.3') <= Ltree('1.2.4')
assert Ltree('1') <= Ltree('1')
def test_gt(self):
assert Ltree('2') > Ltree('1')
assert Ltree('1.2.3') > Ltree('1.2.2')
assert Ltree('1.2.3.4') > Ltree('1.2.3')
def test_gte(self):
assert Ltree('1.2.3') >= Ltree('1.2.2')
assert Ltree('1') >= Ltree('1')
|
