1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/jsapi-tests/testIsInsideNursery.cpp b/js/src/jsapi-tests/testIsInsideNursery.cpp
new file mode 100644
index 000000000..83957ef0e
--- /dev/null
+++ b/js/src/jsapi-tests/testIsInsideNursery.cpp
@@ -0,0 +1,30 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+* vim: set ts=8 sts=4 et sw=4 tw=99:
+*/
+/* 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"
+
+BEGIN_TEST(testIsInsideNursery)
+{
+    /* Non-GC things are never inside the nursery. */
+    CHECK(!cx->gc.nursery.isInside(cx));
+    CHECK(!cx->gc.nursery.isInside((void*)nullptr));
+
+    JS_GC(cx);
+
+    JS::RootedObject object(cx, JS_NewPlainObject(cx));
+
+    /* Objects are initially allocated in the nursery. */
+    CHECK(js::gc::IsInsideNursery(object));
+
+    JS_GC(cx);
+
+    /* And are tenured if still live after a GC. */
+    CHECK(!js::gc::IsInsideNursery(object));
+
+    return true;
+}
+END_TEST(testIsInsideNursery)