def test_local_binding():
fl = fluid()
assert not boundp(fl)
with fluids((fl, 2)):
assert boundp(fl)
assert fl() == 2
with fluids((fl, 3)):
assert fl() == 3
assert fl() == 2
@raises(Unbound)
def unbound():
return fl()
unbound()
def test_unhashable():
@memoizable
def f(a):
return a
with fluids((memos, Memos())):
f([])
def test_global_utf_binding():
assert utf() == 1
utf(2)
assert utf() == 2
with fluids((utf, 3)):
assert utf() == 3
utf(4)
assert utf() == 4
assert utf() == 2
def test_fib70_memoized():
prev_handler = signal(SIGALRM, timeout)
try:
with fluids((memos, Memos())):
alarm(120) # this is absurdly too long
assert fib(70) == f70
finally:
alarm(0)
signal(SIGALRM, prev_handler)
def test_key_extraction():
@memoizable(key=lambda a: a[0])
def silly_fact(a):
return 1 if a[0] == 1 else a[0] * silly_fact([a[0] - 1])
fact10 = 3628800
assert silly_fact([10]) == fact10
with fluids((memos, Memos())):
assert silly_fact([10]) == fact10
def test_simple_memoized_spread():
@memoizable(spread=True)
def addup(x, y):
return x + y
assert addup(1, 2) == 3
assert addup(2, 2) == 4
with fluids((memos, Memos())):
assert addup(1, 2) == 3
assert addup(2, 3) == 5
def test_thr_binding():
def set_tf_3():
assert tf() == 1
tf(3)
assert tf() == 3
set_tf_3()
assert tf() == 3
with fluids((tf, 12)):
thr = Thread(target=set_tf_3)
thr.start()
thr.join()
assert tf() == 12
assert tf() == 3
def test_fib30_memoized():
with fluids((memos, Memos())):
assert fib(30) == f30
def test_fiblike30_memoized():
with fluids((memos, Memos())):
assert fiblike(30, 1, 1) == f30