def test_encrypt_file(tmpdir):
secretfile = tmpdir.join("encrypt_file")
secretfile.write("secret")
assert secretfile.read() == "secret"
key = helpers.generate_256bit_key().decode('utf-8')
crypto.encrypt_file(jwd=secretfile.dirpath().strpath, filepath=secretfile.strpath, key=key)
assert secretfile.read() != "secret"
assert crypto.ENCRYPTED_BY_HEADER in secretfile.read()
def test_encrypt_and_decrypt_a_file(runner, tmpdir):
with runner.isolated_filesystem():
secretfile = tmpdir.mkdir("sub").join("hello")
secret_content = "supercalifragialisticexpialidocious"
secretfile.write(secret_content)
assert secretfile.read() == secret_content
key = helpers.generate_256bit_key().decode('utf-8')
crypto.encrypt_file(jwd=secretfile.dirpath().strpath, filepath=secretfile.strpath, key=key)
# File has changed
assert secretfile.read() != secret_content
# File has the header (which we now assume means it is encrypted,
# which might be presumptuous.)
assert crypto.ENCRYPTED_BY_HEADER in secretfile.read()
crypto.decrypt_file(jwd=secretfile.dirpath().strpath, filepath=secretfile.strpath, key=key)
# Back to original
assert secretfile.read() == secret_content
def test_generate_256bit_key():
key = helpers.generate_256bit_key()
assert len(key) == 64
assert isinstance(key, six.binary_type)