forked from Kyrucho/collatz-tests
/
crm3595-TestCollatz.py
168 lines (133 loc) · 3.97 KB
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crm3595-TestCollatz.py
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#!/usr/bin/env python3
# -------------------------------
# projects/collatz/TestCollatz.py
# Copyright (C) 2016
# Glenn P. Downing
# -------------------------------
# https://docs.python.org/3.4/reference/simple_stmts.html#grammar-token-assert_stmt
# -------
# imports
# -------
from io import StringIO
from unittest import main, TestCase
from Collatz import collatz_read, collatz_eval, collatz_print, collatz_solve , recursive_cycle_length
# -----------
# TestCollatz
# -----------
class TestCollatz (TestCase):
# ----
# read
# ----
def test_read1(self):
s = "1 10\n"
i, j = collatz_read(s)
self.assertEqual(i, 1)
self.assertEqual(j, 10)
def test_read2(self):
s= "1\n"
i = collatz_read(s)
self.assertEqual(i,"Error with string length")
def test_read3(self):
s = "10 1\n"
i, j = collatz_read(s)
self.assertEqual(i, 10)
self.assertEqual(j, 1)
def test_read4(self):
s = " \n"
i= collatz_read(s)
self.assertEqual(i , "Error with string length")
# ----
# eval
# ----
def test_eval_1(self):
v = collatz_eval(1, 10)
self.assertEqual(v, 20)
def test_eval_2(self):
v = collatz_eval(100, 200)
self.assertEqual(v, 125)
def test_eval_3(self):
v = collatz_eval(201, 210)
self.assertEqual(v, 89)
def test_eval_4(self):
v = collatz_eval(900, 1000)
self.assertEqual(v, 174)
def test_recursive_cycle_length1(self):
d = {}
d[2] = 2
v = recursive_cycle_length(5 , d )
self.assertEqual(v , 6)
def test_recursive_cycle_length2(self):
d = {}
v = recursive_cycle_length(6 , d )
self.assertEqual(v , 9)
def test_recursive_cycle_length3(self):
d = {}
v = recursive_cycle_length(4 , d )
self.assertEqual(v , 3)
# -----
# print
# -----
def test_print1(self):
w = StringIO()
collatz_print(w, 1, 10, 20)
self.assertEqual(w.getvalue(), "1 10 20\n")
def test_print2(self):
w = StringIO()
collatz_print(w, 201, 210, 89)
self.assertEqual(w.getvalue(), "201 210 89\n")
def test_print3(self):
w = StringIO()
collatz_print(w, 900, 1000, 174)
self.assertEqual(w.getvalue(), "900 1000 174\n")
# -----
# solve
# -----
def test_solve1(self):
r = StringIO("1 10\n100 200\n201 210\n900 1000\n")
w = StringIO()
collatz_solve(r, w)
self.assertEqual(
w.getvalue(), "1 10 20\n100 200 125\n201 210 89\n900 1000 174\n")
def test_solve2(self):
r = StringIO("10 1\n200 100\n210 201\n1000 900\n")
w = StringIO()
collatz_solve(r, w)
self.assertEqual(
w.getvalue(), "10 1 20\n200 100 125\n210 201 89\n1000 900 174\n")
def test_solve3(self):
r = StringIO( "1 2\n")
w = StringIO()
collatz_solve(r, w)
self.assertEqual(
w.getvalue(), "1 2 2\n")
def test_solve4(self):
r = StringIO( "")
w = StringIO()
collatz_solve(r, w)
self.assertEqual(
w.getvalue(), "")
# ----
# main
# ----
if __name__ == "__main__":
main()
""" #pragma: no cover
% coverage-3.5 run --branch TestCollatz.py > TestCollatz.out 2>&1
% cat TestCollatz.out
.......
----------------------------------------------------------------------
Ran 7 tests in 0.000s
OK
% coverage-3.5 report -m >> TestCollatz.out
% cat TestCollatz.out
.......
----------------------------------------------------------------------
Ran 7 tests in 0.000s
OK
Name Stmts Miss Branch BrPart Cover Missing
------------------------------------------------------------
Collatz.py 12 0 2 0 100%
TestCollatz.py 32 0 0 0 100%
------------------------------------------------------------
TOTAL 44 0 2 0 100%
"""