1 files changed, 38 insertions, 0 deletions
diff --git a/browser/base/content/test/forms/browser_selectpopup_minFontSize.js b/browser/base/content/test/forms/browser_selectpopup_minFontSize.js
new file mode 100644
index 0000000000..d240c2d2d0
--- /dev/null
+++ b/browser/base/content/test/forms/browser_selectpopup_minFontSize.js
@@ -0,0 +1,38 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// NOTE that this test expects "font.minimum-size.x-western=9" to be set
+// in the manifest.
+
+const PAGE = `
+<!doctype html>
+<body lang="en-US">
+<select>
+  <option style="font-size:24px">A</option>
+  <option style="font-size:6px">BCD</option>
+</select>
+`;
+
+add_task(async function () {
+  const url = "data:text/html," + encodeURI(PAGE);
+  await BrowserTestUtils.withNewTab(
+    {
+      gBrowser,
+      url,
+    },
+    async function (browser) {
+      let popup = await openSelectPopup("click");
+      let menuitems = popup.querySelectorAll("menuitem");
+      is(
+        getComputedStyle(menuitems[0]).fontSize,
+        "24px",
+        "font-size should be honored"
+      );
+      is(
+        getComputedStyle(menuitems[1]).fontSize,
+        "9px",
+        "minimum font-size should be honored"
+      );
+    }
+  );
+});