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bdd465-TestCollatz.py
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bdd465-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, collatz_single_eval
# -----------
# TestCollatz
# -----------
class TestCollatz (TestCase):
# ----
# read
# ----
def test_read(self):
string = "1 10\n"
i, j = collatz_read(string)
self.assertEqual(i, 1)
self.assertEqual(j, 10)
def test_read_2(self):
string = "10 10"
input1, input2 = collatz_read(string)
self.assertEqual(input1, 10)
self.assertEqual(input2, 10)
self.assertEqual(input1, input2)
def test_read_3(self):
string = "1 999999"
input1, input2 = collatz_read(string)
self.assertEqual(input1, 1)
self.assertEqual(input2, 999999)
def test_read_4(self):
string = "\n"
input1, input2 = collatz_read(string)
self.assertEqual(input1, 0)
self.assertEqual(input2, 0)
# ----
# eval
# ----
def test_eval_1(self):
val = collatz_eval(999999, 999999)
self.assertEqual(val, 259)
def test_eval_2(self):
val = collatz_eval(1, 10)
self.assertEqual(val, 20)
def test_eval_3(self):
val = collatz_eval(100, 200)
self.assertEqual(val, 125)
def test_eval_4(self):
val = collatz_eval(201, 210)
self.assertEqual(val, 89)
def test_eval_5(self):
val = collatz_eval(900, 1000)
self.assertEqual(val, 174)
def test_eval_6(self):
value = collatz_eval(2, 2)
self.assertEqual(value, 2)
def test_eval_7(self):
value = collatz_eval(10, 10)
self.assertEqual(value, 7)
def test_eval_8(self):
value = collatz_eval(1024, 1024)
self.assertEqual(value, 11)
def test_eval_9(self):
self.assertRaises(AssertionError, collatz_eval, 0, 10)
def test_eval_10(self):
self.assertRaises(AssertionError, collatz_eval, -5, 20)
def test_eval_11(self):
val = collatz_eval(210, 200)
self.assertEqual(val, 89)
def test_eval_12(self):
val = collatz_eval(1, 1)
self.assertEqual(val, 1)
def test_eval_13(self):
val = collatz_eval(691, 707)
self.assertEqual(val, 171)
def test_eval_14(self):
val = collatz_eval(596310, 596349)
self.assertEqual(val, 98)
def test_eval_15(self):
val = collatz_eval(596309, 596349)
self.assertEqual(val, 160)
def test_eval_16(self):
val = collatz_eval(596310, 596350)
self.assertEqual(val, 266)
def test_eval_17(self):
val = collatz_eval(596309, 596350)
self.assertEqual(val, 266)
def test_eval_18(self):
val = collatz_eval(8, 228366)
self.assertEqual(val, 386)
# -----------
# single_eval
# -----------
def test_single_eval_1(self):
val = collatz_single_eval(1)
self.assertEqual(val, 1)
def test_single_eval_2(self):
val = collatz_single_eval(10)
self.assertEqual(val, 7)
def test_single_eval_3(self):
val = collatz_single_eval(837799)
self.assertEqual(val, 525)
# -----
# print
# -----
def test_print(self):
write_to = StringIO()
collatz_print(write_to, 1, 10, 20)
self.assertEqual(write_to.getvalue(), "1 10 20\n")
def test_print_2(self):
write_to = StringIO()
collatz_print(write_to, 100, 200, 125)
self.assertEqual(write_to.getvalue(), "100 200 125\n")
def test_print_3(self):
write_to = StringIO()
collatz_print(write_to, 900, 1000, 174)
self.assertEqual(write_to.getvalue(), "900 1000 174\n")
# -----
# solve
# -----
def test_solve(self):
read = StringIO("1 10\n100 200\n201 210\n900 1000\n")
write = StringIO()
collatz_solve(read, write)
self.assertEqual(
write.getvalue(), "1 10 20\n100 200 125\n201 210 89\n900 1000 174\n")
def test_solve_2(self):
read = StringIO("4331 4370\n8454 8517\n1275 1335\n868 893\n"
"5674 5732\n6157 6232\n6649 6694\n5837 5857\n"
"5646 5696\n12 26\n6072 6165\n")
write = StringIO()
collatz_solve(read, write)
self.assertEqual(
write.getvalue(), "4331 4370 184\n8454 8517 203\n1275 1335 177\n868 893 179\n"
"5674 5732 174\n6157 6232 262\n6649 6694 182\n5837 5857 218\n"
"5646 5696 205\n12 26 24\n6072 6165 187\n")
def test_solve_3(self):
read = StringIO("176 240\n459 519\n889 981\n642 668\n230 305\n\n")
write = StringIO()
collatz_solve(read, write)
self.assertEqual(
write.getvalue(), "176 240 128\n459 519 142\n889 981 174\n642 668 145\n230 305 128\n")
# ----
# main
# ----
if __name__ == "__main__":
main()
""" #pragma: no cover
% coverage3 run --branch TestCollatz.py > TestCollatz.out 2>&1
% coverage3 report -m >> TestCollatz.out
% cat TestCollatz.out
.......
----------------------------------------------------------------------
Ran 7 tests in 0.001s
OK
Name Stmts Miss Branch BrMiss Cover Missing
---------------------------------------------------------
Collatz 18 0 6 0 100%
TestCollatz 33 1 2 1 94% 79
---------------------------------------------------------
TOTAL 51 1 8 1 97%
"""