Add WPT checking the lang attribute affects the rendering of the second text run

mbrodesser-Igalia · web-flow · commit 57c0ecb89c95 · 2025-03-04T11:54:55.000+01:00
diff --git a/css/css-fonts/lang-attribute-affects-rendering-of-second-text-run-ref.html b/css/css-fonts/lang-attribute-affects-rendering-of-second-text-run-ref.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <style>
+    * { font-size: 50px }
+
+    @font-face {
+      font-family: test-font-family;
+      /* <Lato-Medium.ttf> provides different ligatures for English and
+         Turkish. */
+      src: url(support/fonts/Lato-Medium.ttf);
+    }
+
+    div { font-family: test-font-family; }
+  </style>
+</head>
+<body>
+  `lang="en"` should render ligatures, `lang="tr"` not.
+  Different scripts should correspond to different text runs.
+  <div lang="tr">αβ fi</div>
+</body>
+</html>
+
diff --git a/css/css-fonts/lang-attribute-affects-rendering-of-second-text-run.html b/css/css-fonts/lang-attribute-affects-rendering-of-second-text-run.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <link rel="help" href="https://html.spec.whatwg.org/#attr-lang">
+  <link rel="mismatch" href="lang-attribute-affects-rendering-of-second-text-run.html">
+  <style>
+    * { font-size: 50px }
+
+    @font-face {
+      font-family: test-font-family;
+      /* <Lato-Medium.ttf> provides different ligatures for English and
+         Turkish. */
+      src: url(support/fonts/Lato-Medium.ttf);
+    }
+
+    div { font-family: test-font-family; }
+  </style>
+</head>
+<body>
+  `lang="en"` should render ligatures, `lang="tr"` not.
+  Different scripts should correspond to different text runs.
+  <div lang="en">αβ fi</div>
+</body>
+</html>
