def test_has_no_solutions(self):
m = [
[2, 4, 6],
[2, 4, 7],
]
solution = solve(m)
self.assertFalse(solution)
def test_yields_correct_solution(self):
m = [
[2, 2, 8],
[2, -2, 0],
]
solution = solve(m)
s = solution()
self.assertEqual(s, (2, 2))
def test_has_many_solutions(self):
m = [
[2, 2, 8],
[1, 1, 4],
]
solution = solve(m)
self.assertTrue(solution)
self.assertFalse(solution.exact)
def test_has_exact_solution(self):
m = [
[2, 2, 8],
[2, -2, 0],
]
solution = solve(m)
self.assertTrue(solution)
self.assertTrue(solution.exact)
def test_yields_different_solutions_for_different_input(self):
m = [
[2, 2, 8],
[1, 1, 4],
]
solution = solve(m)
s1 = solution(1)
s2 = solution(2)
self.assertNotEqual(s1, s2)