mirui 0.43.0

A lightweight, no_std ECS-driven UI framework for embedded, desktop, and WebAssembly
Documentation 
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//! End-to-end checks for a generated MIRX coverage face.

use mirui::render::font::mirx::MirxFontProvider;
use mirui::render::font::{FontProvider, GlyphKind};
use mirx::{FontRepresentationKind, PayloadLimits};

const FONT_BYTES: &[u8] = include_bytes!("fixtures/misans_coverage_16_4bit.mirx");

fn open() -> MirxFontProvider {
    MirxFontProvider::from_mirx(FONT_BYTES, &PayloadLimits::HOST).expect("coverage face")
}

#[test]
fn face_retains_generation_geometry() {
    let provider = open();
    let record = provider.view().tables().representations().get(0).unwrap();
    assert_eq!(record.representation().design_ppem(), 16);
    assert!(matches!(
        record.representation().kind(),
        FontRepresentationKind::Coverage { bits: 4 }
    ));
    assert_eq!(provider.view().tables().glyph_count(), 69);
}

#[test]
fn resolves_ascii_through_strided_regions() {
    let provider = open();
    for ch in ['A', 'Z', 'a', 'z', '0', '9', '!', '?'] {
        let glyph = provider
            .glyph(ch, 16)
            .unwrap_or_else(|| panic!("missing glyph {ch:?}"));
        let GlyphKind::Raster {
            stride,
            region,
            representation,
            ..
        } = glyph.kind
        else {
            panic!("coverage glyph");
        };
        assert!(matches!(
            representation.kind(),
            FontRepresentationKind::Coverage { bits: 4 }
        ));
        assert_eq!(stride, 8);
        assert_eq!((region.width(), region.height()), (16, 16));
    }
}

#[test]
fn misses_codepoint_outside_charset() {
    assert!(open().glyph('δΈ­', 16).is_none());
}

#[test]
fn capital_a_contains_both_coverage_values() {
    let glyph = open().glyph('A', 16).unwrap();
    let GlyphKind::Raster { samples, .. } = glyph.kind else {
        panic!("coverage glyph");
    };
    assert!(samples.iter().any(|byte| *byte != 0));
    assert!(samples.iter().any(|byte| *byte != u8::MAX));
}