1 files changed, 52 insertions, 0 deletions
diff --git a/dom/system/tests/worker_constants.js b/dom/system/tests/worker_constants.js
new file mode 100644
index 0000000000..b55bb8d0fa
--- /dev/null
+++ b/dom/system/tests/worker_constants.js
@@ -0,0 +1,52 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+/* eslint-env mozilla/chrome-worker */
+/* global OS */
+
+function log(text) {
+  dump("WORKER " + text + "\n");
+}
+
+function send(message) {
+  self.postMessage(message);
+}
+
+self.onmessage = function (msg) {
+  self.onmessage = function (msgInner) {
+    log("ignored message " + JSON.stringify(msgInner.data));
+  };
+  let { umask } = msg.data;
+  try {
+    test_umaskWorkerThread(umask);
+  } catch (x) {
+    log("Catching error: " + x);
+    log("Stack: " + x.stack);
+    log("Source: " + x.toSource());
+    ok(false, x.toString() + "\n" + x.stack);
+  }
+  finish();
+};
+
+function finish() {
+  send({ kind: "finish" });
+}
+
+function ok(condition, description) {
+  send({ kind: "ok", condition, description });
+}
+function is(a, b, description) {
+  send({ kind: "is", a, b, description });
+}
+function isnot(a, b, description) {
+  send({ kind: "isnot", a, b, description });
+}
+
+// Test that OS.Constants.Sys.umask is set properly in ChromeWorker thread
+function test_umaskWorkerThread(umask) {
+  is(
+    umask,
+    OS.Constants.Sys.umask,
+    "OS.Constants.Sys.umask is set properly on worker thread: " +
+      ("0000" + umask.toString(8)).slice(-4)
+  );
+}