1 files changed, 20 insertions, 0 deletions
diff --git a/xpcom/tests/unit/test_stringstream.js b/xpcom/tests/unit/test_stringstream.js
new file mode 100644
index 0000000000..0b9dcf3c5e
--- /dev/null
+++ b/xpcom/tests/unit/test_stringstream.js
@@ -0,0 +1,20 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+function run_test() {
+  var s = Cc["@mozilla.org/io/string-input-stream;1"].createInstance(
+    Ci.nsIStringInputStream
+  );
+  var body = "This is a test";
+  s.setData(body, body.length);
+  Assert.equal(s.available(), body.length);
+
+  var sis = Cc["@mozilla.org/scriptableinputstream;1"].createInstance(
+    Ci.nsIScriptableInputStream
+  );
+  sis.init(s);
+
+  Assert.equal(sis.read(body.length), body);
+}