def test(self):
self.subTest("Basic tests")
self.assertEqual(is_prime(0), False, '0 is not prime')
self.assertEqual(is_prime(1), False, '1 is not prime')
self.assertEqual(is_prime(2), True, '2 is prime')
def test_is_prime_ok(self):
for i in [
1,
3,
4,
34,
4,
]:
self.assertTrue(is_prime(i))
def test_is_prime():
print('test_is_prime ')
data = {
5:True,
9:False,
6:False,
739:True,
997:True,
}
results = []
for k,v in data.items():
if main.is_prime(k) == v:
results.append('pass')
else:
results.append('fail')
return results
def test_three_prime(self):
self.assertFalse(is_prime(3))
def test_four_not_prime(self):
self.assertFalse(is_prime(4))
def test_zero_not_prime(self):
self.assertFalse(is_prime(0))
def test_is_prime_no(self):
for i in [1, 4, 6, 9, 10, 11]:
self.assertFalse(is_prime(i))
def test_right_message_returned(self): self.assertIn(is_prime(13), 'This number is prime')
def test(self):
self.assertEqual(main.is_prime(0), False)
self.assertEqual(main.is_prime(1), False)
self.assertEqual(main.is_prime(2), True)
self.assertEqual(main.is_prime(3), True)
self.assertEqual(main.is_prime(4), False)
self.assertEqual(main.is_prime(5), True)
# Carmichael number
self.assertEqual(main.is_prime(561), False)
self.assertEqual(main.is_prime(1105), False)
self.assertEqual(main.is_prime(1729), False)
self.assertEqual(main.is_prime(2465), False)
self.assertEqual(main.is_prime(2821), False)
self.assertEqual(main.is_prime(6601), False)
self.assertEqual(main.is_prime(8911), False)
self.assertEqual(main.is_prime(10585), False)
self.assertEqual(main.is_prime(15841), False)
self.assertEqual(main.is_prime(29341), False)
# ~ 1 million
self.assertEqual(main.is_prime(999983), True)
def test_is_five_prime(self):
self.assertFalse(is_prime(5))
def test_is_prime_no(self):
for i in [1, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20]:
self.assertFalse(is_prime(i))
from main import is_prime
from math import sqrt
# https://projecteuler.net/problem=3
# The prime factors of 13195 are 5, 7, 13 and 29.
# What is the largest prime factor of the number 600851475143 ?
n = 600851475143
c = int(sqrt(n))
while True:
c -= 1
if is_prime(c) and n % c == 0:
print(c)
break
from main import solve, is_prime
sum = 0
for i in range(1, 2000000):
if is_prime(i):
print(i)
sum += i
solve(sum)
def test_all_prime(self):
for i in range(1, 10):
self.assertFalse(is_prime(i))
def test_is_prime_negative(self):
self.assertFalse(is_prime(-1))
def test_int_prime(self):
for i in range(1, 10):
try:
val = int(i)
except ValueError:
self.assertTrue(is_prime(val))
def test_is_prime_raise_typeerror(self):
with self.assertRaises(TypeError):
is_prime('string')
def test_negative_number(self):
for index in range(-1, -10, -1):
self.assertFalse(is_prime(index))
def test_is_prime_ok(self):
for i in [2, 3, 5, 7, 11, 13, 17, 19]:
self.assertTrue(is_prime(i))
def test_is_prime(self): self.assertTrue(is_prime(5))
if __name__ == '__main__':
OUT_NAME = 'output.txt'
raw_input = fs.read(OUT_NAME)
print('====> Reading %s' % OUT_NAME)
rows = raw_input.split('\n')
# assert len(rows)-2 is 5
nums = set()
for i, row in enumerate(rows):
# Skip first row (contains number of entries)
if i == 0: continue
# Skip last row (contains only \n)
if i == len(rows) - 1: continue
cols = row.split(' ')
assert len(cols) is 10
num = cols[0]
assert num not in nums
assert num[0] == '1' and num[-1] == '1'
nums.add(num)
for i in range(9):
assert not main.is_prime(int(num, 2 + i))
for i, col in enumerate(cols[1:]):
assert int(num, 2 + i) % int(col) is 0
def test_is_prime_only_int(self):
with self.assertRaises(TypeError):
is_prime('a')
def test_is_five_prime(self):
"""Is five successfully determined to be prime?"""
self.assertFalse(is_prime(5))
