44 lines
2.1 KiB
Rust
44 lines
2.1 KiB
Rust
//! Two installed versions of one family and style (a font library keeps an old version beside a
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//! new one): both load, the family and style alone keep resolving to the first, and type that names
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//! the other version is set in it.
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use kurbo::Point;
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use vectorcraft_doc::CharStyle;
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use super::test_fonts::{TWIN_FAMILY as FAMILY, TWIN_VERSIONS as VERSIONS, twin_font};
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use super::*;
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/// A database of the bundled fonts, the newer version of the test family loaded first.
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fn db() -> FontDb {
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let db = FontDb::with_font_dirs(vec![]);
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assert_eq!(db.add_font(twin_font(true).expect("the newer test font builds")), 1);
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assert_eq!(db.add_font(twin_font(false).expect("the older test font builds")), 1, "another version is kept");
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assert_eq!(db.add_font(twin_font(false).expect("the older test font builds")), 0, "the same version isn't added twice");
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db
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}
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fn width(db: &FontDb, version: Option<&str>) -> f64 {
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let st = CharStyle { font_family: FAMILY.into(), font_version: version.map(Into::into), size: 100.0, ..CharStyle::default() };
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layout(db, &TextObject::point(Point::ZERO, "Hamburgefonstiv", st)).glyphs.iter().map(|g| g.advance).sum()
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}
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#[test]
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fn a_version_is_found_by_its_version_string() {
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let db = db();
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let face = |v: Option<&str>| db.face_version(FAMILY, "Regular", v).expect("a face");
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assert_eq!(db.face(FAMILY, "Regular").expect("a face").version, VERSIONS[1], "the first loaded stays the default");
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assert_eq!(face(None).version, VERSIONS[1]);
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assert_eq!(face(Some(VERSIONS[0])).version, VERSIONS[0]);
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assert_eq!(face(Some("Version 9.000")).version, VERSIONS[1], "a version not installed: the default");
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let all = db.versions(&face(None));
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assert_eq!(all.iter().map(|f| f.version.as_str()).collect::<Vec<_>>(), [VERSIONS[1], VERSIONS[0]]);
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}
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#[test]
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fn type_naming_a_version_is_set_in_it() {
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let db = db();
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let (newer, older) = (width(&db, None), width(&db, Some(VERSIONS[0])));
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assert!((newer - older).abs() > 50.0, "the two versions set the line differently: {newer} vs {older}");
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assert_eq!(width(&db, Some(VERSIONS[1])), newer);
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}
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