summaryrefslogtreecommitdiffstats
path: root/devtools/shared/heapsnapshot/tests/gtest/DoesntCrossCompartmentBoundaries.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'devtools/shared/heapsnapshot/tests/gtest/DoesntCrossCompartmentBoundaries.cpp')
-rw-r--r--devtools/shared/heapsnapshot/tests/gtest/DoesntCrossCompartmentBoundaries.cpp64
1 files changed, 64 insertions, 0 deletions
diff --git a/devtools/shared/heapsnapshot/tests/gtest/DoesntCrossCompartmentBoundaries.cpp b/devtools/shared/heapsnapshot/tests/gtest/DoesntCrossCompartmentBoundaries.cpp
new file mode 100644
index 000000000..2fe5e6ace
--- /dev/null
+++ b/devtools/shared/heapsnapshot/tests/gtest/DoesntCrossCompartmentBoundaries.cpp
@@ -0,0 +1,64 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
+/* 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/. */
+
+// Test that heap snapshots walk the compartment boundaries correctly.
+
+#include "DevTools.h"
+
+DEF_TEST(DoesntCrossCompartmentBoundaries, {
+ // Create a new global to get a new compartment.
+ JS::CompartmentOptions options;
+ JS::RootedObject newGlobal(cx, JS_NewGlobalObject(cx,
+ getGlobalClass(),
+ nullptr,
+ JS::FireOnNewGlobalHook,
+ options));
+ ASSERT_TRUE(newGlobal);
+ JSCompartment* newCompartment = nullptr;
+ {
+ JSAutoCompartment ac(cx, newGlobal);
+ ASSERT_TRUE(JS_InitStandardClasses(cx, newGlobal));
+ newCompartment = js::GetContextCompartment(cx);
+ }
+ ASSERT_TRUE(newCompartment);
+ ASSERT_NE(newCompartment, compartment);
+
+ // Our set of target compartments is only the pre-existing compartment and
+ // does not include the new compartment.
+ JS::CompartmentSet targetCompartments;
+ ASSERT_TRUE(targetCompartments.init());
+ ASSERT_TRUE(targetCompartments.put(compartment));
+
+ FakeNode nodeA;
+ FakeNode nodeB;
+ FakeNode nodeC;
+
+ nodeA.compartment = compartment;
+ nodeB.compartment = nullptr;
+ nodeC.compartment = newCompartment;
+
+ AddEdge(nodeA, nodeB);
+ AddEdge(nodeB, nodeC);
+
+ ::testing::NiceMock<MockWriter> writer;
+
+ // Should serialize nodeA, because it is in our target compartments.
+ ExpectWriteNode(writer, nodeA);
+
+ // Should serialize nodeB, because it doesn't belong to a compartment and is
+ // therefore assumed to be shared.
+ ExpectWriteNode(writer, nodeB);
+
+ // But we shouldn't ever serialize nodeC.
+
+ JS::AutoCheckCannotGC noGC(cx);
+
+ ASSERT_TRUE(WriteHeapGraph(cx,
+ JS::ubi::Node(&nodeA),
+ writer,
+ /* wantNames = */ false,
+ &targetCompartments,
+ noGC));
+ });