Macro test_toolbox::expect [−][src]
macro_rules! expect {
($var : ident = $rls : expr, $dgb : expr) => { ... };
($var : ident : $typ : ty = $rls : expr, $dgb : expr) => { ... };
}
Expand description
Macro to define different expected values for debug
and release
This is useful when testing logic with differing expected results based on build.
Basically erogonomifies the following …
cfg_if! {
if #[cfg(not(debug_assertions))] {
let expected = 42; // release build value
} else {
let expected = 0; // debug build value
}
}
with …
expect! { expected = 42, 0 }
Features
- lets you define both
release
anddebug
initialization values for expected variable - lets you optionally provide an explicit
type
when defining an expected variable
* release
initialization value is defined first, followed by the debug
value
Examples
- implicit type
// 42 is the expected value for release
// default is the expected value for debug
expect! { expected = 42, 0 }
- explict type
// 42 is the expected value for release
// default is the expected value for debug
expect! { expected: usize = 42, Default::default() }