Macro block_cipher_test 

macro_rules! block_cipher_test {
    ($name:ident, $cipher:ty $(,)?) => { ... };
    ($test_name:ident, $file_name:expr, $cipher:ty $(,)?) => { ... };
    ($name:ident, $cipher:ty, $test_fn:ident $(,)?) => { ... };
    ($test_name:ident, $file_name:expr, $cipher:ty, $test_fn:ident $(,)?) => { ... };
}

Define block cipher test