def test_traverse():
"""To test the traverse implementation we call gc.collect() while instances
of all the C objects are still valid."""
acc = iteration_utilities.accumulate([])
app = iteration_utilities.applyfunc(lambda x: x, 1)
cha = iteration_utilities.chained(int, float)
cla = iteration_utilities.clamp([], 0, 1)
com = iteration_utilities.complement(int)
con = iteration_utilities.constant(1)
dee = iteration_utilities.deepflatten([])
dup = iteration_utilities.duplicates([])
fli = iteration_utilities.flip(int)
gro = iteration_utilities.grouper([], 2)
ine = iteration_utilities.intersperse([], 1)
iik = iteration_utilities.ItemIdxKey(10, 2)
ite = iteration_utilities.iter_except(int, TypeError)
mer = iteration_utilities.merge([])
nth = iteration_utilities.nth(1)
pac = iteration_utilities.packed(int)
par = iteration_utilities.partial(int, 10)
rep = iteration_utilities.replicate([], 3)
rou = iteration_utilities.roundrobin([])
see = iteration_utilities.Seen()
sid = iteration_utilities.sideeffects([], lambda x: x)
spl = iteration_utilities.split([], lambda x: True)
sta = iteration_utilities.starfilter(lambda x: True, [])
suc = iteration_utilities.successive([])
tab = iteration_utilities.tabulate(int)
une = iteration_utilities.unique_everseen([])
unj = iteration_utilities.unique_justseen([])
gc.collect()
def test_constant_pickle1(protocol):
x = pickle.dumps(constant(T(10)), protocol=protocol)
assert pickle.loads(x)() == T(10)
def test_constant_failure1():
# Too few arguments
with pytest.raises(TypeError):
constant()
def test_constant_normal2():
one = constant(T(1))
assert one(10, a=2) == T(1)
def test_constant_normal1():
one = constant(T(1))
assert one() == T(1)
def test_constant_attributes1():
x = constant(T(2))
assert x.item == T(2)
def test_constant_repr1():
x = constant(2)
r = repr(x)
assert 'constant' in r
assert '2' in r
# Licensed under Apache License Version 2.0 - see LICENSE
from iteration_utilities import constant, nth
__all__ = [
"return_True", "return_False", "return_None", "first", "second", "third",
"last"
]
return_True = constant(True)
return_False = constant(False)
return_None = constant(None)
first = nth(0)
second = nth(1)
third = nth(2)
last = nth(-1)