1 files changed, 6 insertions, 0 deletions
diff --git a/js/xpconnect/tests/unit/test_getObjectPrincipal.js b/js/xpconnect/tests/unit/test_getObjectPrincipal.js
new file mode 100644
index 0000000000..03c6ffce3d
--- /dev/null
+++ b/js/xpconnect/tests/unit/test_getObjectPrincipal.js
@@ -0,0 +1,6 @@
+function run_test() {
+  Assert.ok(Cu.getObjectPrincipal({}).isSystemPrincipal);
+  var sb = new Cu.Sandbox('http://www.example.com');
+  Cu.evalInSandbox('var obj = { foo: 42 };', sb);
+  Assert.equal(Cu.getObjectPrincipal(sb.obj).origin, 'http://www.example.com');
+}