Function check_all 

pub fn check_all<E, D>(enc: E, dec: D) -> Conformance
where
    E: EncoderConfig,
    D: DecoderConfig,
    <E::Job as EncodeJob>::Enc: Encoder<Error = E::Error>,
    <E::Job as EncodeJob>::AnimationFrameEnc: AnimationFrameEncoder,

Run every conformance check with sensible default inputs, returning the first failure. The one-call entry point for a codec’s test suite; for control over image sizes or animation frames, call the individual check_* functions.