def test_length(self):
default_length = 8
assert_equal(len(generate_verification_code()), default_length,
"Verification code length does not match default expected length of %d." % default_length)
assert_equal(len(generate_verification_code(length=10)), 10,
"Verification code length does not match expected length.")
assert_raises(ValueError, generate_verification_code, 33)
assert_raises(ValueError, generate_verification_code, 0)
assert_raises(ValueError, generate_verification_code, -1)
assert_raises(ValueError, generate_verification_code, 33)
assert_raises(TypeError, generate_verification_code, None)
assert_raises(TypeError, generate_verification_code, "")
def test_is_string(self):
assert_true(isinstance(generate_verification_code(), bytes),
"Verification code is not a bytestring.")
def test_uniqueness(self):
assert_not_equal(generate_verification_code(),
generate_verification_code(),
"Verification code is not unique.")
