1 files changed, 25 insertions, 0 deletions
diff --git a/devtools/client/inspector/fonts/test/browser_fontinspector_no-fonts.js b/devtools/client/inspector/fonts/test/browser_fontinspector_no-fonts.js
new file mode 100644
index 0000000000..454cabdf92
--- /dev/null
+++ b/devtools/client/inspector/fonts/test/browser_fontinspector_no-fonts.js
@@ -0,0 +1,25 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+// Check that the warning message for no fonts found shows up when selecting a node
+// that does not have any used fonts.
+// Ensure that no used fonts are listed.
+
+const TEST_URI = URL_ROOT + "doc_browser_fontinspector.html";
+
+add_task(async function () {
+  const { view, inspector } = await openFontInspectorForURL(TEST_URI);
+  const viewDoc = view.document;
+  await selectNode(".empty", inspector);
+
+  info("Test the warning message for no fonts found on empty element");
+  const warning = viewDoc.querySelector(
+    "#font-editor .devtools-sidepanel-no-result"
+  );
+  ok(warning, "The warning for no fonts found is shown for the empty element");
+
+  info("Test that no fonts are listed for the empty element");
+  const fontsEls = getUsedFontsEls(viewDoc);
+  is(fontsEls.length, 0, "There are no used fonts listed");
+});