Struct DetectorGuard 

pub struct DetectorGuard { /* private fields */ }

RAII guard that calls reset_detectors when dropped.

Install at the start of a test to guarantee the overrides are torn down on normal exit and on panic-induced unwind, so a failing assertion doesn’t leak state into the next serial test.

use standout_render::environment::{DetectorGuard, set_terminal_width_detector, detect_terminal_width};

let _guard = DetectorGuard::new();
set_terminal_width_detector(|| Some(80));
assert_eq!(detect_terminal_width(), Some(80));
// `_guard` resets everything when it goes out of scope.

Implementations

impl DetectorGuard

pub fn new() -> Self

Creates a guard that will reset all environment detectors on drop.

Trait Implementations

impl Default for DetectorGuard

fn default() -> Self

Returns the “default value” for a type.

impl Drop for DetectorGuard

fn drop(&mut self)

Executes the destructor for this type.