Function check_decoder 

pub fn check_decoder<D: Decoder>(decoder: D, bytes: &[u8], expected: &D::Output)
where
    D::Output: Eq + Debug,
    D::Error: Debug,

Checks that the given decoder produces the expected value, panicking if it doesn’t.

This is intended for tests only.

Panics

If the decoder doesn’t produce the expected value or if decoding fails.