1 files changed, 38 insertions, 0 deletions
diff --git a/dom/base/test/file_bug1198095.js b/dom/base/test/file_bug1198095.js
new file mode 100644
index 0000000000..2b8c018de7
--- /dev/null
+++ b/dom/base/test/file_bug1198095.js
@@ -0,0 +1,38 @@
+/* eslint-env mozilla/chrome-script */
+
+Cu.importGlobalProperties(["File"]);
+
+function createFileWithData(message) {
+  var dirSvc = Cc["@mozilla.org/file/directory_service;1"].getService(
+    Ci.nsIProperties
+  );
+  var testFile = dirSvc.get("ProfD", Ci.nsIFile);
+  testFile.append("fileAPItestfileBug1198095");
+
+  var outStream = Cc[
+    "@mozilla.org/network/file-output-stream;1"
+  ].createInstance(Ci.nsIFileOutputStream);
+  outStream.init(
+    testFile,
+    0x02 | 0x08 | 0x20, // write, create, truncate
+    0o666,
+    0
+  );
+
+  outStream.write(message, message.length);
+  outStream.close();
+
+  return File.createFromNsIFile(testFile);
+}
+
+addMessageListener("file.open", function (message) {
+  createFileWithData(message).then(function (file) {
+    sendAsyncMessage("file.opened", file);
+  });
+});
+
+addMessageListener("file.modify", function (message) {
+  createFileWithData(message).then(function (file) {
+    sendAsyncMessage("file.modified", file);
+  });
+});