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-rw-r--r--js/xpconnect/tests/chrome/file_expandosharing.jsm10
1 files changed, 10 insertions, 0 deletions
diff --git a/js/xpconnect/tests/chrome/file_expandosharing.jsm b/js/xpconnect/tests/chrome/file_expandosharing.jsm
new file mode 100644
index 0000000000..2e7ffe5416
--- /dev/null
+++ b/js/xpconnect/tests/chrome/file_expandosharing.jsm
@@ -0,0 +1,10 @@
+this.EXPORTED_SYMBOLS = ['checkFromJSM'];
+
+this.checkFromJSM = function checkFromJSM(target, is_op) {
+ is_op(target.numProp, 42, "Number expando works");
+ is_op(target.strProp, "foo", "String expando works");
+ // If is_op is todo_is, target.objProp will be undefined.
+ try {
+ is_op(target.objProp.bar, "baz", "Object expando works");
+ } catch(e) { is_op(0, 1, "No object expando"); }
+}