1 files changed, 19 insertions, 0 deletions
diff --git a/dom/file/tests/create_file_objects.js b/dom/file/tests/create_file_objects.js
new file mode 100644
index 0000000000..cf016b239d
--- /dev/null
+++ b/dom/file/tests/create_file_objects.js
@@ -0,0 +1,19 @@
+/* eslint-env mozilla/chrome-script */
+
+Cu.importGlobalProperties(["File"]);
+
+addMessageListener("create-file-objects", function (message) {
+  let files = [];
+  let promises = [];
+  for (fileName of message.fileNames) {
+    promises.push(
+      File.createFromFileName(fileName).then(function (file) {
+        files.push(file);
+      })
+    );
+  }
+
+  Promise.all(promises).then(function () {
+    sendAsyncMessage("created-file-objects", files);
+  });
+});