macro_rules! assert_fn_eq_as_result { ($a_function:path, $a_param:expr, $b_function:path, $b_param:expr $(,)?) => { ... }; ($a_function:path, $b_function:path) => { ... }; }
Expand description
Assert a function output is equal to another function output.
Pseudocode:
function1(a) == function2(b)
-
If true, return Result
Ok(())
. -
Otherwise, return Result
Err
with a diagnostic message.
This macro provides the same statements as assert_
,
except this macro returns a Result, rather than doing a panic.
This macro is useful for runtime checks, such as checking parameters, or sanitizing inputs, or handling different results in different ways.