1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/jsapi-tests/testGCHooks.cpp b/js/src/jsapi-tests/testGCHooks.cpp
new file mode 100644
index 000000000..2c6cc0b1f
--- /dev/null
+++ b/js/src/jsapi-tests/testGCHooks.cpp
@@ -0,0 +1,36 @@
+/* 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 "mozilla/UniquePtr.h"
+
+#include "js/GCAPI.h"
+
+#include "jsapi-tests/tests.h"
+
+static unsigned gSliceCallbackCount = 0;
+
+static void
+NonIncrementalGCSliceCallback(JSContext* cx, JS::GCProgress progress, const JS::GCDescription& desc)
+{
+    ++gSliceCallbackCount;
+    MOZ_RELEASE_ASSERT(progress == JS::GC_CYCLE_BEGIN || progress == JS::GC_CYCLE_END);
+    MOZ_RELEASE_ASSERT(desc.isZone_ == false);
+    MOZ_RELEASE_ASSERT(desc.invocationKind_ == GC_NORMAL);
+    MOZ_RELEASE_ASSERT(desc.reason_ == JS::gcreason::API);
+    if (progress == JS::GC_CYCLE_END) {
+        mozilla::UniquePtr<char16_t> summary(desc.formatSummaryMessage(cx));
+        mozilla::UniquePtr<char16_t> message(desc.formatSliceMessage(cx));
+        mozilla::UniquePtr<char16_t> json(desc.formatJSON(cx, 0));
+    }
+}
+
+BEGIN_TEST(testGCSliceCallback)
+{
+    JS::SetGCSliceCallback(cx, NonIncrementalGCSliceCallback);
+    JS_GC(cx);
+    JS::SetGCSliceCallback(cx, nullptr);
+    CHECK(gSliceCallbackCount == 2);
+    return true;
+}
+END_TEST(testGCSliceCallback)