-import unittest
+import pytest
import string
-from cipher.enigma import *
-from cipher.bombe import *
-
-class ScramblerTest(unittest.TestCase):
- def setUp(self):
- self.scrambler = Scrambler(wheel_i_spec, wheel_ii_spec,
- wheel_iii_spec, reflector_b_spec)
-
- def test_attributes(self):
- self.assertEqual(self.scrambler.wheel_positions, (0, 0, 0))
- self.assertEqual(self.scrambler.wheel_positions_l, ('a', 'a', 'a'))
-
- def test_set_positions(self):
- self.scrambler.set_positions(1, 2, 3)
- self.assertEqual(self.scrambler.wheel_positions, (1, 2, 3))
- self.assertEqual(self.scrambler.wheel_positions_l, ('b', 'c', 'd'))
- self.scrambler.set_positions('p', 'q', 'r')
- self.assertEqual(self.scrambler.wheel_positions, (15, 16, 17))
- self.assertEqual(self.scrambler.wheel_positions_l, ('p', 'q', 'r'))
-
- def test_advance(self):
- self.assertEqual(self.scrambler.wheel_positions, (0, 0, 0))
- self.scrambler.advance()
- self.assertEqual(self.scrambler.wheel_positions, (0, 0, 1))
- self.scrambler.advance()
- self.assertEqual(self.scrambler.wheel_positions, (0, 0, 2))
- self.scrambler.set_positions(0, 0, 25)
- self.assertEqual(self.scrambler.wheel_positions, (0, 0, 25))
- self.scrambler.advance()
- self.assertEqual(self.scrambler.wheel_positions, (0, 0, 0))
- self.scrambler.set_positions(0, 0, 25)
- self.scrambler.advance(wheel3=False)
- self.assertEqual(self.scrambler.wheel_positions, (0, 0, 25))
- self.scrambler.set_positions(0, 0, 25)
- self.scrambler.advance(wheel2=True)
- self.assertEqual(self.scrambler.wheel_positions, (0, 1, 0))
- self.scrambler.set_positions(0, 0, 25)
- self.scrambler.advance(wheel1=True, wheel2=True)
- self.assertEqual(self.scrambler.wheel_positions, (1, 1, 0))
-
- def test_lookups(self):
- self.scrambler.set_positions(0, 0, 0)
- self.assertEqual(cat(self.scrambler.lookup(l)
- for l in string.ascii_lowercase),
- 'uejobtpzwcnsrkdgvmlfaqiyxh')
- self.assertEqual(cat(self.scrambler.lookup(l)
- for l in 'uejobtpzwcnsrkdgvmlfaqiyxh'),
- 'abcdefghijklmnopqrstuvwxyz')
- self.scrambler.set_positions('p', 'q', 'r')
- self.assertEqual(cat(self.scrambler.lookup(l)
- for l in string.ascii_lowercase),
- 'jgqmnwbtvaurdezxclyhkifpso')
- self.assertEqual(cat(self.scrambler.lookup(l)
- for l in 'jgqmnwbtvaurdezxclyhkifpso'),
- 'abcdefghijklmnopqrstuvwxyz')
-
-class BombeTest(unittest.TestCase):
- def setUp(self):
- self.bombe = Bombe(wheel_i_spec, wheel_ii_spec,
- wheel_iii_spec, reflector_b_spec)
- self.plaintext = 'thisisatestmessage'
- self.ciphertext = 'opgndxcrwomnlnecjz'
- self.menu = make_menu(self.plaintext, self.ciphertext)
- self.bombe.read_menu(self.menu)
-
- def test_menu(self):
- self.assertEqual(len(self.bombe.connections), 18)
- self.assertEqual(':'.join(sorted(cat(sorted(c.banks))
- for c in self.bombe.connections)),
- 'ac:ac:di:el:es:ew:ez:gi:gj:hp:mn:mt:ns:ns:os:ot:rt:sx')
- self.assertEqual(':'.join(sorted(cat(c.scrambler.wheel_positions_l)
- for c in self.bombe.connections)),
- 'aaa:aab:aac:aad:aae:aaf:aag:aah:aai:aaj:aak:aal:aam:aan:aao:aap:aaq:aar')
-
- self.bombe.read_menu(self.menu)
- self.assertEqual(len(self.bombe.connections), 18)
-
- def test_signal(self):
- self.bombe.test(Signal('t', 't'))
- self.assertEqual(len(self.bombe.banks['t']), 26)
- self.assertTrue(all(self.bombe.banks['t'].values()))
- self.assertEqual(sum(1 for s in self.bombe.banks['u'].values() if s), 18)
-
- self.bombe.set_positions('a', 'a', 'b')
- self.bombe.test()
- self.assertEqual(sum(1 for b in self.bombe.banks
- for s in self.bombe.banks[b].values() if s),
- 11)
-
- def test_valid_with_rings(self):
- pt31 = 'someplaintext'
- ct31 = 'dhnpforeeimgg'
- menu31 = make_menu(pt31, ct31)
- b31 = Bombe(wheel_i_spec, wheel_v_spec, wheel_iii_spec, reflector_b_spec)
- b31.read_menu(menu31)
- b31.set_positions('e', 'l', 'f')
-
- b31.test(Signal('s', 'o'))
- self.assertEqual(sum(1 for b in b31.banks
- for s in b31.banks[b].values() if s),
- 5)
- self.assertEqual(':'.join(sorted(cat(sorted(p))
- for p in b31.possible_plugboards())),
- 'd:hl:os')
-
- b31.test(Signal('o', 'o'))
- self.assertEqual(sum(1 for b in b31.banks
- for s in b31.banks[b].values() if s),
- 507)
- self.assertEqual(':'.join(sorted(cat(sorted(p))
- for p in b31.possible_plugboards())),
- 'bg:ey:fp:in:m:tx')
-
- def test_invalid_with_rings(self):
- pt31 = 'someplaintext'
- ct31 = 'dhnpforeeimgg'
- menu31 = make_menu(pt31, ct31)
- b31 = Bombe(wheel_i_spec, wheel_v_spec, wheel_iii_spec, reflector_b_spec)
- b31.read_menu(menu31)
- b31.set_positions('a', 'a', 'a')
-
- b31.test(Signal('a', 'o'))
- self.assertEqual(sum(1 for b in b31.banks
- for s in b31.banks[b].values() if s),
- 514)
- self.assertEqual(':'.join(sorted(cat(sorted(p))
- for p in b31.possible_plugboards())),
- '')
-
-if __name__ == '__main__':
- unittest.main()
+from szyfrow.enigma import *
+from szyfrow.bombe import *
+
+@pytest.fixture
+def sample_scrambler():
+ return Scrambler(wheel_i_spec, wheel_ii_spec,
+ wheel_iii_spec, reflector_b_spec)
+
+def test_attributes(sample_scrambler):
+ assert sample_scrambler.wheel_positions == (0, 0, 0)
+ assert sample_scrambler.wheel_positions_l == ('a', 'a', 'a')
+
+def test_set_positions(sample_scrambler):
+ sample_scrambler.set_positions(1, 2, 3)
+ assert sample_scrambler.wheel_positions == (1, 2, 3)
+ assert sample_scrambler.wheel_positions_l == ('b', 'c', 'd')
+ sample_scrambler.set_positions('p', 'q', 'r')
+ assert sample_scrambler.wheel_positions == (15, 16, 17)
+ assert sample_scrambler.wheel_positions_l == ('p', 'q', 'r')
+
+def test_advance(sample_scrambler):
+ assert sample_scrambler.wheel_positions == (0, 0, 0)
+ sample_scrambler.advance()
+ assert sample_scrambler.wheel_positions == (0, 0, 1)
+ sample_scrambler.advance()
+ assert sample_scrambler.wheel_positions == (0, 0, 2)
+ sample_scrambler.set_positions(0, 0, 25)
+ assert sample_scrambler.wheel_positions == (0, 0, 25)
+ sample_scrambler.advance()
+ assert sample_scrambler.wheel_positions == (0, 0, 0)
+ sample_scrambler.set_positions(0, 0, 25)
+ sample_scrambler.advance(wheel3=False)
+ assert sample_scrambler.wheel_positions == (0, 0, 25)
+ sample_scrambler.set_positions(0, 0, 25)
+ sample_scrambler.advance(wheel2=True)
+ assert sample_scrambler.wheel_positions == (0, 1, 0)
+ sample_scrambler.set_positions(0, 0, 25)
+ sample_scrambler.advance(wheel1=True, wheel2=True)
+ assert sample_scrambler.wheel_positions == (1, 1, 0)
+
+def test_lookups(sample_scrambler):
+ sample_scrambler.set_positions(0, 0, 0)
+ lookups = cat(sample_scrambler.lookup(l) for l in string.ascii_lowercase)
+ assert lookups == 'uejobtpzwcnsrkdgvmlfaqiyxh'
+ lookups = cat(sample_scrambler.lookup(l) for l in 'uejobtpzwcnsrkdgvmlfaqiyxh')
+ assert lookups == 'abcdefghijklmnopqrstuvwxyz'
+ sample_scrambler.set_positions('p', 'q', 'r')
+ lookups = cat(sample_scrambler.lookup(l) for l in string.ascii_lowercase)
+ assert lookups == 'jgqmnwbtvaurdezxclyhkifpso'
+ lookups = cat(sample_scrambler.lookup(l) for l in 'jgqmnwbtvaurdezxclyhkifpso')
+ assert lookups == 'abcdefghijklmnopqrstuvwxyz'
+
+
+@pytest.fixture
+def sample_bombe():
+ bombe = Bombe(wheel_i_spec, wheel_ii_spec, wheel_iii_spec, reflector_b_spec)
+ plaintext = 'thisisatestmessage'
+ ciphertext = 'opgndxcrwomnlnecjz'
+ menu = make_menu(plaintext, ciphertext)
+ bombe.read_menu(menu)
+ return bombe
+
+def test_menu(sample_bombe):
+ assert len(sample_bombe.connections) == 18
+ banks = ':'.join(sorted(cat(sorted(c.banks))
+ for c in sample_bombe.connections))
+ assert banks == 'ac:ac:di:el:es:ew:ez:gi:gj:hp:mn:mt:ns:ns:os:ot:rt:sx'
+ wheel_pos = ':'.join(sorted(cat(c.scrambler.wheel_positions_l)
+ for c in sample_bombe.connections))
+ assert wheel_pos == 'aaa:aab:aac:aad:aae:aaf:aag:aah:aai:aaj:aak:aal:aam:aan:aao:aap:aaq:aar'
+
+ assert len(sample_bombe.connections) == 18
+
+def test_signal(sample_bombe):
+ sample_bombe.test(Signal('t', 't'))
+ assert len(sample_bombe.banks['t']) == 26
+ assert all(sample_bombe.banks['t'].values()) == True
+ assert sum(1 for s in sample_bombe.banks['u'].values() if s) == 18
+
+ sample_bombe.set_positions('a', 'a', 'b')
+ sample_bombe.test()
+ n_active_banks = sum(1 for b in sample_bombe.banks
+ for s in sample_bombe.banks[b].values() if s)
+ assert n_active_banks == 11
+
+def test_valid_with_rings():
+ pt31 = 'someplaintext'
+ ct31 = 'dhnpforeeimgg'
+ menu31 = make_menu(pt31, ct31)
+ b31 = Bombe(wheel_i_spec, wheel_v_spec, wheel_iii_spec, reflector_b_spec)
+ b31.read_menu(menu31)
+ b31.set_positions('e', 'l', 'f')
+
+ b31.test(Signal('s', 'o'))
+ n_active_banks = sum(1 for b in b31.banks
+ for s in b31.banks[b].values() if s)
+ plugboards = ':'.join(sorted(cat(sorted(p))
+ for p in b31.possible_plugboards()))
+ assert n_active_banks == 5
+ assert plugboards == 'd:hl:os'
+
+ b31.test(Signal('o', 'o'))
+ n_active_banks = sum(1 for b in b31.banks
+ for s in b31.banks[b].values() if s)
+ plugboards = ':'.join(sorted(cat(sorted(p))
+ for p in b31.possible_plugboards()))
+ assert n_active_banks == 507
+ assert plugboards == 'bg:ey:fp:in:m:tx'
+
+def test_invalid_with_rings():
+ pt31 = 'someplaintext'
+ ct31 = 'dhnpforeeimgg'
+ menu31 = make_menu(pt31, ct31)
+ b31 = Bombe(wheel_i_spec, wheel_v_spec, wheel_iii_spec, reflector_b_spec)
+ b31.read_menu(menu31)
+ b31.set_positions('a', 'a', 'a')
+
+ b31.test(Signal('a', 'o'))
+ n_active_banks = sum(1 for b in b31.banks
+ for s in b31.banks[b].values() if s)
+ plugboards = ':'.join(sorted(cat(sorted(p))
+ for p in b31.possible_plugboards()))
+ assert n_active_banks == 514
+ assert plugboards == ''
+
projects / szyfrow.git / blobdiff