[coretext] Disable variation-selectors test :-(

src/hb-coretext-font.cc

@@ -194,6 +194,10 @@ hb_coretext_get_variation_glyph (hb_font_t *font HB_UNUSED,
     if (cg_glyph[i])
       return false;
 
+  // Humm. CoreText falls back to the default glyph if the variation selector
+  // is not supported.  We cannot truly detect that case. So, in essence,
+  // we are always returning true here...
+
   *glyph = cg_glyph[0];
   return true;
 }

test/shape/data/in-house/tests/variation-selectors.tests

@@ -1,2 +1,3 @@
+@font-funcs-=coretext # CoreText does not let us detect unsupported variation-selectors
 ../fonts/bbc24004e776f348a0f72287d24b0124867ee750.ttf;;U+0066,U+FE00,U+0069;[gid5=0+1134|gid1=0+0]
 ../fonts/bbc24004e776f348a0f72287d24b0124867ee750.ttf;--not-found-variation-selector-glyph=1000000;U+0066,U+FE00,U+0069;[gid2=0+711|gid1000000=0+0|gid3=2+497]

test/shape/run-tests.py

@@ -83,10 +83,10 @@ for what in ["shaper", "face-loader", "font-funcs"]:
     )
     # Capture the output
     what_list = what_process.communicate()[0].decode("utf-8").strip().split()
-    print(what, end=": ")
-    print(what_list)
+    whats = plural(what)
     var_name = supported_whats_var_name(what)
     globals()[var_name] = what_list
+    print(f"Supported {whats}: {what_list}")
 
 passes = 0
 fails = 0
@@ -150,7 +150,7 @@ for filename in args:
                         values = [v for v in values if v in supported]
 
                     var_name = all_whats_var_name(what)
-                    print(f"Setting {var_name} to {values}")
+                    print(f"Setting {whats} to test to {values}")
                     globals()[var_name] = values
                     consumed = True
             if consumed: