1 files changed, 27 insertions, 0 deletions
diff --git a/js/src/jsapi-tests/testStringBuffer.cpp b/js/src/jsapi-tests/testStringBuffer.cpp
new file mode 100644
index 0000000000..300524c310
--- /dev/null
+++ b/js/src/jsapi-tests/testStringBuffer.cpp
@@ -0,0 +1,27 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ */
+/* 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/. */
+
+#include "jsapi-tests/tests.h"
+#include "util/StringBuffer.h"
+#include "vm/JSAtom.h"
+
+BEGIN_TEST(testStringBuffer_finishString) {
+  JSString* str = JS_NewStringCopyZ(cx, "foopy");
+  CHECK(str);
+
+  JS::Rooted<JSAtom*> atom(cx, js::AtomizeString(cx, str));
+  CHECK(atom);
+
+  js::StringBuffer buffer(cx);
+  CHECK(buffer.append("foopy"));
+
+  JS::Rooted<JSAtom*> finishedAtom(cx, buffer.finishAtom());
+  CHECK(finishedAtom);
+  CHECK_EQUAL(atom, finishedAtom);
+  return true;
+}
+END_TEST(testStringBuffer_finishString)