def test_valid_message_build(self):
"""
Test case for the build function. Build is the opposite of read, and the output
is a properly-formatted message body. Does not use encryption.
"""
message = pyspamsteg.create(test_pt00)
self.assertEqual(pyspamsteg.read(message), test_pt00)
def test_valid_read(self):
"""
Test case to ensure that a message can be read properly. This implicitly
tests the decode function as well. This tests just the read and decode
functions without testing the cipher suite.
"""
self.assertEqual(pyspamsteg.read(test_ct01), test_pt01)
def test_build(self):
"""
Test case to verify proper build and read of a steganograpic message with
PlayFair encryption.
"""
message = 'testing pyspamsteg'
passphrase = 'pyspamsteg'
ct = pyspamsteg.create( message, passphrase )
pt = pyspamsteg.read( ct, passphrase )
self.assertEquals( pt, message )
def test_steg_vector(self):
"""
Test case validating the test vector from the site. Uses PlayFair encryption.
"""
expected_pt = 'Programming Praxis'
passphrase = "President Obama's visit to a Chrysler plant in Toledo, "
passphrase += "Ohio, on Friday was the culmination of a campaign to "
passphrase += "portray the auto bailouts as a brilliant success with "
passphrase += "no unpleasant side effects."
vector = open('tests/spam_example_vector').read()
pyspamsteg.set_charsize( 7 )
pt = pyspamsteg.read( vector, passphrase )
self.assertEquals( pt, expected_pt )
def test_invalid_read(self):
"""
Test case to ensure proper handling of improperly-formatted messages. Does not
use the cipher suite.
"""
self.assertEqual(pyspamsteg.read(test_ct02), None)