1 files changed, 35 insertions, 0 deletions
diff --git a/toolkit/components/extensions/test/xpcshell/test_ext_manifest_themes.js b/toolkit/components/extensions/test/xpcshell/test_ext_manifest_themes.js
new file mode 100644
index 0000000000..8cd44f06dc
--- /dev/null
+++ b/toolkit/components/extensions/test/xpcshell/test_ext_manifest_themes.js
@@ -0,0 +1,35 @@
+/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set sts=2 sw=2 et tw=80: */
+"use strict";
+
+async function test_theme_property(property) {
+  let normalized = await ExtensionTestUtils.normalizeManifest(
+    {
+      theme: {
+        [property]: {},
+      },
+    },
+    "manifest.ThemeManifest"
+  );
+
+  if (property === "unrecognized_key") {
+    const expectedWarning = `Warning processing theme.${property}`;
+    ok(
+      normalized.errors[0].includes(expectedWarning),
+      `The manifest warning ${JSON.stringify(
+        normalized.errors[0]
+      )} must contain ${JSON.stringify(expectedWarning)}`
+    );
+  } else {
+    equal(normalized.errors.length, 0, "Should have a warning");
+  }
+  equal(normalized.error, undefined, "Should not have an error");
+}
+
+add_task(async function test_manifest_themes() {
+  await test_theme_property("images");
+  await test_theme_property("colors");
+  ExtensionTestUtils.failOnSchemaWarnings(false);
+  await test_theme_property("unrecognized_key");
+  ExtensionTestUtils.failOnSchemaWarnings(true);
+});