1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/realms/nuking.js b/js/src/jit-test/tests/realms/nuking.js
new file mode 100644
index 0000000000..1d0656a716
--- /dev/null
+++ b/js/src/jit-test/tests/realms/nuking.js
@@ -0,0 +1,49 @@
+// Ensure nuking happens on a single target realm instead of compartment.
+
+var g1 = newGlobal({newCompartment: true});
+var g2 = newGlobal({sameCompartmentAs: g1});
+g2.other = g1;
+
+var o1 = g1.Math;
+var o2 = g2.Math;
+
+g1.nukeAllCCWs();
+
+// o1 is now dead.
+ex = null;
+try {
+    assertEq(o1.abs(1), 1);
+} catch (e) {
+    ex = e;
+}
+assertEq(ex.toString().includes("dead object"), true);
+
+// o2 still works.
+assertEq(o2.abs(1), 1);
+
+// g2 can still access g1 because they're same-compartment.
+assertEq(g2.evaluate("other.Math.abs(-2)"), 2);
+
+// Attempting to create a new wrapper targeting nuked realm g1 should return a
+// dead wrapper now. Note that we can't use g1 directly because that's now a
+// dead object, so we try to get to g1 via g2.
+ex = null;
+try {
+    g2.other.toString();
+} catch (e) {
+    ex = e;
+}
+assertEq(ex.toString().includes("dead object"), true);
+
+// Nuke g2 too. We have nuked all realms in its compartment so we should now
+// throw if we try to create a new outgoing wrapper.
+g2.evaluate("(" + function() {
+    nukeAllCCWs();
+    var ex = null;
+    try {
+        newGlobal({newCompartment: true}).Array();
+    } catch (e) {
+        ex = e;
+    }
+    assertEq(ex.toString().includes('dead object'), true);
+} + ")()");