add test and file containing 'standard' axis names

to reproduce #1020

fontc/src/lib.rs

@@ -1729,6 +1729,51 @@ mod tests {
         })
     }
 
+    #[test]
+    fn standard_axis_names() {
+        // test that we match fonttools' naming of standard axes
+        // https://github.com/googlefonts/fontc/issues/1020
+        let result = TestCompile::compile_source("glyphs3/StandardAxisNames.glyphs");
+        let static_metadata = result.fe_context.static_metadata.get();
+
+        assert_eq!(
+            vec![
+                "weight".to_string(),
+                "width".to_string(),
+                "italic".to_string(),
+                "slant".to_string(),
+                "optical".to_string(),
+                "foobarbaz".to_string(),
+            ],
+            static_metadata
+            .axes
+            .iter()
+            .map(|axis| axis.name.clone())
+            .collect::<Vec<_>>()
+        );
+
+        let font = result.font();
+        let name = font.name().unwrap();
+        let fvar = font.fvar().unwrap();
+
+        assert_eq!(
+            vec![
+                "Weight".to_string(),
+                "Width".to_string(),
+                "Italic".to_string(),
+                "Slant".to_string(),
+                "Optical Size".to_string(),
+                // This axis is not 'standard' so its UI label was not renamed
+                "foobarbaz".to_string(),
+            ],
+            fvar.axes()
+                .unwrap()
+                .iter()
+                .map(|axis| resolve_name(&name, axis.axis_name_id()).unwrap())
+                .collect::<Vec<_>>()
+        )
+    }
+
     fn assert_named_instances(source: &str, expected: Vec<(String, Vec<(&str, f32)>)>) {
         let result = TestCompile::compile_source(source);
         let font = result.font();

resources/testdata/glyphs3/StandardAxisNames.glyphs

@@ -0,0 +1,193 @@
+{
+.appVersion = "3324";
+.formatVersion = 3;
+axes = (
+{
+name = weight;
+tag = wght;
+},
+{
+name = width;
+tag = wdth;
+},
+{
+name = italic;
+tag = ital;
+},
+{
+name = slant;
+tag = slnt;
+},
+{
+name = optical;
+tag = opsz;
+},
+{
+name = foobarbaz;
+tag = FOOB;
+}
+);
+date = "2024-10-10 14:11:11 +0000";
+familyName = "New Font";
+fontMaster = (
+{
+axesValues = (
+0,
+0,
+0,
+0,
+0,
+0
+);
+id = m01;
+metricValues = (
+{
+}
+);
+name = Regular;
+},
+{
+axesValues = (
+0,
+0,
+0,
+0,
+10,
+0
+);
+id = "1FD21B2D-09AF-4981-B811-2D872E70C4D7";
+metricValues = (
+{
+}
+);
+name = Display;
+},
+{
+axesValues = (
+10,
+0,
+0,
+0,
+0,
+0
+);
+id = "FEF7F46C-F4CB-4286-8DAB-0F5B4E3112C4";
+metricValues = (
+{
+}
+);
+name = Bold;
+},
+{
+axesValues = (
+0,
+10,
+0,
+0,
+0,
+0
+);
+id = "35AAE790-B0B9-4EC3-B9E7-BFB27ABD6F7D";
+metricValues = (
+{
+}
+);
+name = Expanded;
+},
+{
+axesValues = (
+0,
+0,
+1,
+0,
+0,
+0
+);
+id = "19C9E9CF-9763-4DDF-A379-0445DCA72D4F";
+metricValues = (
+{
+pos = 10;
+}
+);
+name = Italic;
+},
+{
+axesValues = (
+0,
+0,
+0,
+10,
+0,
+0
+);
+id = "AD527805-E4EB-47AA-92AC-2C0C755E4536";
+metricValues = (
+{
+pos = 10;
+}
+);
+name = Slanted;
+},
+{
+axesValues = (
+0,
+0,
+0,
+0,
+0,
+10
+);
+id = "A4969238-40F2-4056-9F02-70F1E4A1FE86";
+metricValues = (
+{
+}
+);
+name = "Foo Bar Baz";
+}
+);
+glyphs = (
+{
+glyphname = space;
+lastChange = "2024-10-14 10:45:18 +0000";
+layers = (
+{
+layerId = m01;
+width = 200;
+},
+{
+layerId = "1FD21B2D-09AF-4981-B811-2D872E70C4D7";
+width = 600;
+},
+{
+layerId = "FEF7F46C-F4CB-4286-8DAB-0F5B4E3112C4";
+width = 600;
+},
+{
+layerId = "35AAE790-B0B9-4EC3-B9E7-BFB27ABD6F7D";
+width = 600;
+},
+{
+layerId = "19C9E9CF-9763-4DDF-A379-0445DCA72D4F";
+width = 600;
+},
+{
+layerId = "AD527805-E4EB-47AA-92AC-2C0C755E4536";
+width = 600;
+},
+{
+layerId = "A4969238-40F2-4056-9F02-70F1E4A1FE86";
+width = 600;
+}
+);
+unicode = 32;
+}
+);
+metrics = (
+{
+type = "italic angle";
+}
+);
+unitsPerEm = 1000;
+versionMajor = 1;
+versionMinor = 0;
+}