Macro assert_eq_log 

macro_rules! assert_eq_log {
    ($logger:expr, $left:expr, $right:expr) => { ... };
    ($logger:expr, $left:expr, $right:expr, $($arg:tt)*) => { ... };
}

Assert equality, printing the full log on failure.

Example

assert_eq_log!(logger, actual, expected, "Values should match");