def test4(self):
self.assertEqual(
ciphertext("Hello!").frequency(), {
'W': 0.0,
'E': 0.2,
'Z': 0.0,
'L': 0.4,
'J': 0.0,
'Y': 0.0,
'A': 0.0,
'U': 0.0,
'P': 0.0,
'T': 0.0,
'Q': 0.0,
'I': 0.0,
'S': 0.0,
'N': 0.0,
'K': 0.0,
'R': 0.0,
'G': 0.0,
'H': 0.2,
'D': 0.0,
'V': 0.0,
'X': 0.0,
'M': 0.0,
'O': 0.2,
'C': 0.0,
'F': 0.0,
'B': 0.0
})
def test2(self):
self.assertEqual(
ciphertext("Hello!").occurences(), {
'A': 0,
'C': 0,
'B': 0,
'E': 1,
'D': 0,
'G': 0,
'F': 0,
'I': 0,
'H': 1,
'K': 0,
'J': 0,
'M': 0,
'L': 2,
'O': 1,
'N': 0,
'Q': 0,
'P': 0,
'S': 0,
'R': 0,
'U': 0,
'T': 0,
'W': 0,
'V': 0,
'Y': 0,
'X': 0,
'Z': 0
})
def test5(self):
self.assertEqual(
ciphertext("Hello!").nfreq(2), {
'LO': 0.25,
'EL': 0.25,
'LL': 0.25,
'HE': 0.25
})
def test3(self):
self.assertEqual(
ciphertext("Hello!").nocc(2), {
'EL': 1,
'LL': 1,
'LO': 1,
'HE': 1
})
def test10(self):
with open('english_quadgrams.txt') as f:
lines = f.read().splitlines()
stdQuadOcc = {}
for line in lines:
stdQuadOcc[line.split()[0]] = int(line.split()[1])
self.assertEqual(
ciphertext("Hello!").fitness(stdQuadOcc), -8.393753565159919)
def test6(self):
self.assertEqual(
ciphertext("Helllo!").sortedfreq(), [('L', 0.5), ('E', 0.167),
('H', 0.167), ('O', 0.167),
('A', 0.0), ('C', 0.0),
('B', 0.0), ('D', 0.0),
('G', 0.0), ('F', 0.0),
('I', 0.0), ('K', 0.0),
('J', 0.0), ('M', 0.0),
('N', 0.0), ('Q', 0.0),
('P', 0.0), ('S', 0.0),
('R', 0.0), ('U', 0.0),
('T', 0.0), ('W', 0.0),
('V', 0.0), ('Y', 0.0),
('X', 0.0), ('Z', 0.0)])
def test1(self):
self.assertEqual(repr(ciphertext("Hello!")), "HELLO")
def test9(self):
self.assertEqual(
ciphertext("Helllo!").sortednfreq(2), [('LL', 0.4), ('EL', 0.2),
('HE', 0.2), ('LO', 0.2)])
def test8(self):
self.assertEqual(ciphertext("Hello!").ioc(), 0.1)