Macro assertables::assert_not_contains_as_result

source · 
macro_rules! assert_not_contains_as_result {
    ($container:expr, $containee:expr $(,)?) => { ... };
}
Expand description

Assert an expression (such as a string) does not contain an expression (such as a substring).

Pseudocode:
¬ a.contains(b)

  • If true, return Result Ok(()).

  • Otherwise, return Result Err with a diagnostic message.

This macro provides the same statements as assert_not_contains, 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.

§Module macros