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import pytest
import math
import os
import sys
# can't import app_math anymore due to 3isms, so hack
app_math_file = os.path.join(os.path.dirname(os.path.dirname(__file__)), "app_math.py")
with open(app_math_file) as f:
s = f.read()
start = s.find("def factorial")
source = s[start:s.find("\ndef", start+1)]
exec(source)
def test_factorial_extra():
for x in range(1000):
r1 = factorial(x)
r2 = math.factorial(x)
assert r1 == r2
assert type(r1) == type(r2)
def test_timing():
import time
x = 5000
repeat = 1000
r1 = factorial(x)
r2 = math.factorial(x)
assert r1 == r2
t1 = time.time()
for i in range(repeat):
factorial(x)
t2 = time.time()
for i in range(repeat):
math.factorial(x)
t3 = time.time()
assert r1 == r2
print (t2 - t1) / repeat
print (t3 - t2) / repeat
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