forked from budang/collatz-tests
/
ror279-TestCollatz.py
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/
ror279-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
# -------
"""
This file is a test suite for collatz
"""
from io import StringIO
from unittest import main, TestCase
from Collatz import collatz_read, collatz_eval, collatz_print, collatz_solve
from Collatz import collatz_run, eval_first_range, eval_second_range, eval_mid_range
from Collatz import order_first_second
# -----------
# TestCollatz
# -----------
class TestCollatz(TestCase):
# pylint: disable=R0904
"""
Test Suite
"""
# ----
# read
# ----
def test_read_1(self):
"""
test read
"""
string = "1 10\n"
first_number, second_number = collatz_read(string)
self.assertEqual(first_number, 1)
self.assertEqual(second_number, 10)
def test_read_2(self):
"""
test read
"""
string = "111 11\n"
first_number, second_number = collatz_read(string)
self.assertEqual(first_number, 111)
self.assertEqual(second_number, 11)
def test_read_3(self):
"""
test read
"""
string = "0 00000\n"
first_number, second_number = collatz_read(string)
self.assertEqual(first_number, 0)
self.assertEqual(second_number, 00000)
# ----
# first range
# ----
def test_eval_first_1(self):
"""
test first 1
"""
value = eval_first_range(22)
self.assertEqual(value[0], 0)
def test_eval_first_2(self):
"""
test first 2
"""
value = eval_first_range(522)
self.assertEqual(value[1], 22)
def test_eval_first_3(self):
"""
test first 3
"""
value = eval_first_range(22)
self.assertEqual(value[2], 499)
# ----
# second range
# ----
def test_eval_second_1(self):
"""
test second 1
"""
value = eval_second_range(22)
self.assertEqual(value[0], 0)
def test_eval_second_2(self):
"""
test second 2
"""
value = eval_second_range(522)
self.assertEqual(value[1], 22)
def test_eval_second_3(self):
"""
test second 3
"""
value = eval_second_range(500)
self.assertEqual(value[2], 500)
# ----
# mid range
# ----
def test_mid_1(self):
"""
test mid 1
"""
max_values = []
eval_mid_range(0, 3, max_values)
self.assertEqual(len(max_values), 2)
def test_mid_2(self):
"""
test mid 2
"""
max_values = []
eval_mid_range(1, 3, max_values)
self.assertEqual(max_values[0], 182)
def test_mid_3(self):
"""
test mid 3
"""
max_values = []
eval_mid_range(0, 5, max_values)
self.assertEqual(max(max_values), 209)
# ----
# order
# ----
def test_order_1(self):
"""
test order 1
"""
value = order_first_second(2, 1)
self.assertEqual(value[0], 1)
def test_order_2(self):
"""
test order 2
"""
value = order_first_second(2, 1)
self.assertEqual(value[1], 2)
def test_order_3(self):
"""
test order 3
"""
value = order_first_second(2, 3)
self.assertEqual(value[1], 3)
# ----
# run
# ----
def test_run_1(self):
"""
test 1
"""
value = collatz_run(1, 10)
self.assertEqual(value, 20)
def test_run_2(self):
"""
test 2
"""
value = collatz_run(100, 200)
self.assertEqual(value, 125)
def test_run_3(self):
"""
test 3
"""
value = collatz_run(201, 210)
self.assertEqual(value, 89)
def test_run_4(self):
"""
test 4
"""
value = collatz_run(900, 1000)
self.assertEqual(value, 174)
# ----
# eval
# ----
def test_eval_1(self):
"""
test 1
"""
value = collatz_eval(0, 1)
self.assertEqual(value, 0)
def test_eval_2(self):
"""
test 2
"""
value = collatz_eval(1, 0)
self.assertEqual(value, 0)
def test_eval_3(self):
"""
test 3
"""
value = collatz_eval(0, 0)
self.assertEqual(value, 0)
def test_eval_4(self):
"""
test 4
"""
value = collatz_eval(10, 1)
self.assertEqual(value, 20)
# -----
# print
# -----
def test_print_1(self):
"""
test
"""
word = StringIO()
collatz_print(word, 1, 10, 20)
self.assertEqual(word.getvalue(), "1 10 20\n")
def test_print_2(self):
"""
test
"""
word = StringIO()
collatz_print(word, 100, 200, 125)
self.assertEqual(word.getvalue(), "100 200 125\n")
def test_print_3(self):
"""
test
"""
word = StringIO()
collatz_print(word, 201, 210, 89)
self.assertEqual(word.getvalue(), "201 210 89\n")
# -----
# solve
# -----
def test_solve(self):
"""
test solve
"""
read = StringIO("1 10\n100 200\n201 210\n900 1000\n")
word = StringIO()
collatz_solve(read, word)
self.assertEqual(word.getvalue(), "1 10 20\n100 200 125\n201 210 89\n900 1000 174\n")
# ----
# main
# ----
if __name__ == "__main__":
main()