def test_item():
e = html.div(range(10))
assert str(misc.item(e[xsc.Text], 0)) == "0"
assert str(misc.item(e[xsc.Text], 9)) == "9"
assert str(misc.item(e[xsc.Text], -1)) == "9"
assert str(misc.item(e[xsc.Text], -10)) == "0"
misc.item(e[xsc.Text], 10) is None
misc.item(e[xsc.Text], -11) is None
assert str(misc.item(e[xsc.Text], 10, "x")) == "x"
assert str(misc.item(e[xsc.Text], -11, "x")) == "x"
def test_walkgetitem():
e = html.div(1, html.div(2, html.div(3)))
isdiv = xfind.selector(html.div)
# Test ``walknodes``
assert str(misc.first(e.walknodes(isdiv))) == "123"
assert str(misc.last(e.walknodes(isdiv))) == "3"
misc.item(e.walknodes(isdiv), 3) is None
misc.item(e.walknodes(isdiv), -4) is None
# Test ``walkpaths``
assert str(misc.item(e.walkpaths(isdiv), (0, -1))) == "123"
assert str(misc.item(e.walkpaths(isdiv), (-1, -1))) == "3"
misc.item(e.walkpaths(isdiv), 3) is None
misc.item(e.walkpaths(isdiv), -4) is None
def __contains__(self, path):
if len(path) > 1:
if self.index in ("even", "odd"):
for (i, child) in enumerate(self._find(path)):
if child is path[-1]:
return (i % 2) == (self.index == "odd")
else:
try:
return misc.item(self._find(path), self.index) is path[-1]
except IndexError:
return False
return False
def test_walkgetitem(): e = html.div( 1, html.div( 2, html.div( 3 ) ) ) isdiv = xfind.selector(html.div) # Test ``walknodes`` assert str(misc.first(e.walknodes(isdiv))) == "123" assert str(misc.last(e.walknodes(isdiv))) == "3" misc.item(e.walknodes(isdiv), 3) is None misc.item(e.walknodes(isdiv), -4) is None # Test ``walkpaths`` assert str(misc.item(e.walkpaths(isdiv), (0, -1))) == "123" assert str(misc.item(e.walkpaths(isdiv), (-1, -1))) == "3" misc.item(e.walkpaths(isdiv), 3) is None misc.item(e.walkpaths(isdiv), -4) is None
def test_item():
def err(n):
yield from range(n)
raise SyntaxError
e = iter(range(10))
assert misc.item(e, 0) == 0
assert misc.item(e, 0) == 1
assert misc.item(e, -1) == 9
assert misc.item(e, -1) is None
assert misc.item(e, -1, 42) == 42
e = iter(range(10))
assert misc.item(e, 4) == 4
e = iter(range(10))
assert misc.item(e, 10) is None
e = iter(range(10))
assert misc.item(e, 10, 42) == 42
e = iter(range(10))
assert misc.item(e, -1) == 9
e = iter(range(10))
assert misc.item(e, -10) == 0
e = iter(range(10))
assert misc.item(e, -11) is None
e = iter(range(10))
assert misc.item(e, -11, 42) == 42
iterable = [17, 23, 37]
# Wrong arguments
with pytest.raises(TypeError):
misc.item()
with pytest.raises(TypeError):
misc.item([])
with pytest.raises(TypeError):
misc.item(42, 42)
# Non-negative index
assert misc.item(iterable, 0) == 17
assert misc.item(iterable, 2) == 37
assert misc.item(iterable, 3) is None
assert misc.item(iterable, 3, 42) == 42
assert misc.item(err(10), 9) == 9
with pytest.raises(SyntaxError):
misc.item(err(10), 10)
# Negative index
assert misc.item(iterable, -1) == 37
assert misc.item(iterable, -3) == 17
assert misc.item(iterable, -4) is None
assert misc.item(iterable, -4, 42) == 42
# iterator is always exhausted
with pytest.raises(SyntaxError):
misc.item(err(10), -1)
# Check index lists
assert misc.item(["foo", "bar"], (1, -1)) == "r"