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calvins-TestCollatz.py
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calvins-TestCollatz.py
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#!/usr/bin/env python
# -------------------------------
# projects/collatz/TestCollatz.py
# Copyright (C) 2011
# Glenn P. Downing
# -------------------------------
"""
To test the program:
% python TestCollatz.py > TestCollatz.py.out
% chmod ugo+x TestCollatz.py
% TestCollatz.py > TestCollatz.py.out
"""
# -------
# imports
# -------
import StringIO
import unittest
from Collatz import collatz_read, collatz_eval, collatz_print, collatz_solve, collatz_calc, collatz_cache, collatz_range_cache, collatz_cache_calc, collatz_range_eval
# -----------
# TestCollatz
# -----------
class TestCollatz (unittest.TestCase) :
# ----
# read
# ----
def test_read (self) :
r = StringIO.StringIO("1 10\n")
a = [0, 0]
b = collatz_read(r, a)
self.assert_(b == True)
self.assert_(a[0] == 1)
self.assert_(a[1] == 10)
# ----
# eval
# ----
def test_eval_1 (self) :
v = collatz_eval(1, 10, None,None)
self.assert_(v == 20)
def test_eval_2 (self) :
v = collatz_eval(100, 200, None,None)
self.assert_(v == 125)
def test_eval_3 (self) :
v = collatz_eval(201, 210, None,None)
self.assert_(v == 89)
def test_eval_4 (self) :
v = collatz_eval(900, 1000, None,None)
self.assert_(v == 174)
"""
# eager cache
def test_eval_1b (self) :
cache = []
collatz_cache(cache)
v = collatz_eval(1, 10, cache)
self.assert_(v == 20)
def test_eval_2b (self) :
cache = []
collatz_cache(cache)
v = collatz_eval(100, 200, cache)
self.assert_(v == 125)
def test_eval_3b (self) :
cache = []
collatz_cache(cache)
v = collatz_eval(201, 210, cache)
self.assert_(v == 89)
def test_eval_4b (self) :
cache = []
collatz_cache(cache)
v = collatz_eval(900, 1000, cache)
self.assert_(v == 174)
"""
# eager range cache
def test_eval_1c (self) :
cache = []
lazy_cache = [0]*1000000
collatz_range_cache(lazy_cache, cache, 99)
v = collatz_eval(1, 10, lazy_cache, cache, 99)
self.assert_(v == 20)
def test_eval_2c (self) :
cache = []
lazy_cache = [0]*1000000
collatz_range_cache(lazy_cache, cache, 99)
v = collatz_eval(10100, 15150, lazy_cache, cache, 99)
self.assert_(v == 276)
def test_eval_3c (self) :
cache = []
lazy_cache = [0]*1000000
collatz_range_cache(lazy_cache, cache, 99)
v = collatz_eval(10101, 668811, lazy_cache, cache, 99)
self.assert_(v == 509)
def test_eval_4c (self) :
cache = []
lazy_cache = [0]*1000000
collatz_range_cache(lazy_cache, cache, 99)
v = collatz_eval(545455, 636363, lazy_cache, cache, 99)
self.assert_(v == 509)
# ----------
# range_eval
# ----------
def test_range_eval_1 (self) :
cache = []
lazy_cache = [0]*1000000
collatz_range_cache(lazy_cache, cache, 111111)
v = collatz_range_eval(16, 39, lazy_cache, cache, 111111)
self.assert_(v == 112)
def test_range_eval_2 (self) :
cache = []
lazy_cache = [0]*1000000
collatz_range_cache(lazy_cache, cache, 111111)
v = collatz_range_eval(19, 39, lazy_cache, cache, 111111)
self.assert_(v == 112)
def test_range_eval_3 (self) :
cache = []
lazy_cache = [0]*1000000
collatz_range_cache(lazy_cache, cache, 111111)
v = collatz_range_eval(16, 36, lazy_cache, cache, 111111)
self.assert_(v == 112)
def test_range_eval_4 (self) :
cache = []
lazy_cache = [0]*1000000
collatz_range_cache(lazy_cache, cache, 111111)
v = collatz_range_eval(19, 36, lazy_cache, cache, 111111)
self.assert_(v == 112)
# ----
# calc
# ----
def test_calc_1 (self) :
n = collatz_calc(5)
self.assert_(n == 6)
def test_calc_2 (self) :
n = collatz_calc(1)
self.assert_(n == 1)
def test_calc_3 (self) :
n = collatz_calc(7)
self.assert_(n == 17)
# --------------
# cache_calc
# --------------
def test_cache_calc_1 (self) :
cache = [0]*1000000
n = collatz_cache_calc(5, cache)
self.assert_(n == 6)
self.assert_(cache[5] == 6)
def test_cache_calc_2 (self) :
cache = [0]*1000000
n = collatz_cache_calc(1, cache)
self.assert_(n == 1)
self.assert_(cache[5] == 0)
def test_cache_calc_3 (self) :
cache = [0]*1000000
n = collatz_cache_calc(7, cache)
self.assert_(n == 17)
self.assert_(cache[5] == 6)
# -----
# cache
# -----
"""
def test_cache_1 (self) :
cache = []
collatz_cache(cache)
self.assert_(cache[5] == 6)
def test_cache_2 (self) :
cache = []
collatz_cache(cache)
self.assert_(cache[1] == 1)
def test_cache_3 (self) :
cache = []
collatz_cache(cache)
self.assert_(cache[7] == 17)
"""
# -----------
# range_cache
# -----------
def test_range_cache_1 (self) :
cache = []
lazy_cache = [0]*1000000
collatz_range_cache(lazy_cache, cache, 99)
self.assert_(len(cache) == 99)
def test_range_cache_2 (self) :
cache = []
lazy_cache = [0]*1000000
collatz_range_cache(lazy_cache, cache, 99)
self.assert_(cache[0] == 262)
def test_range_cache_3 (self) :
cache = []
lazy_cache = [0]*1000000
collatz_range_cache(lazy_cache, cache, 99)
self.assert_(cache[7] == 351)
def test_range_cache_4 (self) :
cache = []
lazy_cache = [0]*1000000
collatz_range_cache(lazy_cache, cache, 111111)
self.assert_(len(cache) == 111111)
def test_range_cache_5 (self) :
cache = []
lazy_cache = [0]*1000000
collatz_range_cache(lazy_cache, cache, 111111)
self.assert_(cache[0] == 20)
def test_range_cache_6 (self) :
cache = []
lazy_cache = [0]*1000000
collatz_range_cache(lazy_cache, cache, 111111)
self.assert_(cache[2] == 112)
# -----
# print
# -----
def test_print (self) :
w = StringIO.StringIO()
collatz_print(w, 1, 10, 20)
self.assert_(w.getvalue() == "1 10 20\n")
# -----
# solve
# -----
def test_solve (self) :
r = StringIO.StringIO("1 10\n100 200\n201 210\n900 1000\n")
w = StringIO.StringIO()
collatz_solve(r, w)
self.assert_(w.getvalue() == "1 10 20\n100 200 125\n201 210 89\n900 1000 174\n")
# ----
# main
# ----
print "TestCollatz.py"
unittest.main()
print "Done."