cranpose-ui 0.19.0

Composable widgets, text, layouts and input for Cranpose apps
Documentation 
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use std::rc::Rc;

use super::*;

#[test]
fn a_redrawn_string_reuses_the_annotated_copy_from_last_frame() {
    let first = shared_plain_annotated_string("SCORE 340");
    let second = shared_plain_annotated_string("SCORE 340");
    assert!(Rc::ptr_eq(&first, &second));
    assert_eq!(second.text, "SCORE 340");
    assert!(second.span_styles.is_empty());
}

#[test]
fn distinct_strings_never_share_an_annotated_copy() {
    let first = shared_plain_annotated_string("READY");
    let second = shared_plain_annotated_string("GO");
    assert!(!Rc::ptr_eq(&first, &second));
    assert_eq!(first.text, "READY");
    assert_eq!(second.text, "GO");
}

#[test]
fn the_pool_survives_overflowing_its_capacity() {
    for index in 0..600 {
        let text = format!("distinct-{index}");
        let shared = shared_plain_annotated_string(&text);
        assert_eq!(shared.text, text);
    }
    let after = shared_plain_annotated_string("still correct");
    assert_eq!(after.text, "still correct");
}

#[test]
fn a_redrawn_string_reuses_the_render_copy_from_last_frame() {
    let first = shared_plain_render_string("SCORE 341");
    let second = shared_plain_render_string("SCORE 341");
    assert!(std::sync::Arc::ptr_eq(&first, &second));
    assert_eq!(second.text(), "SCORE 341");
    assert_eq!(
        second.text(),
        shared_plain_annotated_string("SCORE 341").text,
        "both copies hold the same characters"
    );
}