Vendor things

third-party/vendor/owned_ttf_parser/tests/preparse.rs

@@ -0,0 +1,56 @@
+use owned_ttf_parser::{AsFaceRef, GlyphId, PreParsedSubtables};
+
+const FONT: &[u8] = include_bytes!("../fonts/font.ttf");
+const EMOJI_FONT: &[u8] = include_bytes!("../fonts/NotoColorEmoji-Partial.ttf");
+
+#[test]
+fn preparse_glyph_index() {
+    let face = owned_ttf_parser::Face::parse(FONT, 0).unwrap();
+
+    let pre_parse = PreParsedSubtables::from(face.clone());
+
+    assert_eq!(pre_parse.glyph_index('x'), face.glyph_index('x'));
+
+    assert_eq!(
+        pre_parse.as_face_ref().glyph_index('x'),
+        face.glyph_index('x')
+    );
+}
+
+#[test]
+fn preparse_glyph_variation_index() {
+    let face = owned_ttf_parser::Face::parse(EMOJI_FONT, 0).unwrap();
+
+    let pre_parse = PreParsedSubtables::from(face.clone());
+
+    assert_eq!(
+        pre_parse.glyph_variation_index('#', '\u{FE0F}'),
+        face.glyph_variation_index('#', '\u{FE0F}')
+    );
+
+    assert_eq!(
+        pre_parse
+            .as_face_ref()
+            .glyph_variation_index('#', '\u{FE0F}'),
+        face.glyph_variation_index('#', '\u{FE0F}')
+    );
+}
+
+#[test]
+fn preparse_glyphs_kerning() {
+    let face = owned_ttf_parser::Face::parse(FONT, 0).unwrap();
+
+    let pre_parse = PreParsedSubtables::from(face.clone());
+
+    let (a, b) = (GlyphId(92), GlyphId(93));
+
+    assert_eq!(
+        pre_parse.glyphs_hor_kerning(a, b),
+        face.tables()
+            .kern
+            .iter()
+            .flat_map(|c| c.subtables)
+            .filter(|st| st.horizontal && !st.variable)
+            .find_map(|st| st.glyphs_kerning(a, b))
+    );
+}