def test_require(self):
s = Scalar(3)
assert s.require(Q > 1) is s
with pytest.raises(NullValueError):
s.require(Q > 4)
def test_require(self):
s = Scalar(3)
assert s.require(Q > 1) is s
with pytest.raises(NullValueError):
s.require(Q > 4)
def test_dictzip(self):
c = Collection([Scalar(1), Scalar(2)])
result = c.dictzip(['a', 'b'])
expected = {'a': 1, 'b': 2}
assert result.val() == expected
lbls = Collection([Scalar('a'), Scalar('b')])
assert c.dictzip(lbls).val() == expected
def test_repr_unicode(self):
s = Scalar('∂ƒ')
print(s)
print(repr(s))
print(text_type(s))
assert repr(s)[0] != "'"
s = Scalar('∂ƒ'.encode('utf-8'))
print(s)
print(repr(s))
print(text_type(s))
s = Scalar(b'\xc2')
print(s)
print(repr(s))
print(text_type(s))
def test_arithmetic_with_null(self):
l, r = Scalar(1), Null()
assert isinstance(l + r, Null)
assert isinstance(l - r, Null)
assert isinstance(l * r, Null)
assert isinstance(l / r, Null)
assert isinstance(l // r, Null)
assert isinstance(l**r, Null)
assert isinstance(l % r, Null)
if not PY3:
assert isinstance(operator.div(l, r), Null)
def test_arithmetic(self):
c = Scalar(1)
assert (c + 1).val() == 2
assert (c - 1).val() == 0
assert (c * 2).val() == 2
assert (c / 1).val() == 1
assert operator.truediv(c, 2).val() == 0.5
if not PY3:
assert operator.div(c, 2).val() == 0.5
assert (c // 1).val() == 1
assert (c**2).val() == 1
assert (c % 2).val() == 1
assert (c + c).val() == 2
def test_bool(self):
assert Collection([Scalar(1)])
assert not Collection([])
def test_get_single_on_iterator(self):
c = Collection((Scalar(i) for i in range(5)))
assert c[2].val() == 2
def test_slice_on_iterator(self):
c = Collection((Scalar(i) for i in range(5)))
assert c[::2].val() == [0, 2, 4]
def test_apply(self):
assert Scalar(3).apply(lambda x: x.val() * 2).val() == 6
assert isinstance(Null().apply(lambda x: x), Null)
def test_wrap(self):
v = Scalar(3)
assert isinstance(Wrapper.wrap(3), Scalar)
assert Wrapper.wrap(v) is v
assert isinstance(Wrapper.wrap(BeautifulSoup('a')), Node)
def test_hash(self):
"""
wrappers are hashed by their content
"""
assert hash(Scalar(2)) == hash(Scalar(2))
assert hash(Some(2)) == hash(Some(2))
def test_len(self):
assert len(Scalar([1, 2, 3])) == 3
def test_lt(self):
assert (Scalar(3) < 4).val()
def test_ne(self):
assert (Scalar('test') != 'foo').val()
def test_gt(self):
assert (Scalar(3) > 2).val()
def test_isnull(self):
assert not Scalar(1).isnull()
def test_getkey(self):
assert Scalar({'a': 1})['a'].val() == 1
def test_slice(self):
assert Scalar('test')[1:-1].val() == 'es'
def test_count(self):
assert Collection([]).count().val() == 0
assert Collection([Scalar(1)]).count().val() == 1
assert NullCollection().count().val() == 0
def test_setitem(self):
s = Scalar({'a': 1})
s['b'] = 2
assert s.val() == {'a': 1, 'b': 2}
def test_ge(self):
assert (Scalar(3) >= 2).val()
def test_le(self):
assert (Scalar(3) <= 3).val()
def test_setitem(self):
s = Scalar({'a': 1})
s['b'] = 2
assert s.val() == {'a': 1, 'b': 2}
def test_eq(self):
assert (Scalar('test') == 'test').val()
