Macro dtt_assert

macro_rules! dtt_assert {
    ($cond:expr $(, $msg:expr)?) => { ... };
}

Asserts that the given expression is true.

If the expression is false, the macro panics with the message “Assertion failed!”.

Arguments

• $cond:expr: The condition to be asserted.
• $msg:expr (optional): The message to display if the assertion fails.

Example

use dtt::dtt_parse;
use dtt::dtt_assert;

let is_valid = dtt_parse!("2020-02-29").is_ok();
dtt_assert!(is_valid, "The date must be valid.");