1 files changed, 35 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/realms/array-species-create.js b/js/src/jit-test/tests/realms/array-species-create.js
new file mode 100644
index 0000000000..e6bfd61c97
--- /dev/null
+++ b/js/src/jit-test/tests/realms/array-species-create.js
@@ -0,0 +1,35 @@
+function testSelfHosted() {
+    var g = newGlobal({sameCompartmentAs: this});
+    var arr = g.evaluate("[1, 2]");
+    for (var i = 0; i < 20; i++) {
+        var mapped = Array.prototype.map.call(arr, x => x + 1);
+        assertEq(mapped.constructor, Array);
+    }
+}
+testSelfHosted();
+
+function testNative() {
+    var g = newGlobal({sameCompartmentAs: this});
+    var arr = g.evaluate("[1, 2, 3, 4]");
+    for (var i = 0; i < 20; i++) {
+        var slice = Array.prototype.slice.call(arr, 0, 3);
+        assertEq(slice.constructor, Array);
+    }
+}
+testNative();
+
+function testIntrinsic() {
+    var g1 = newGlobal({sameCompartmentAs: this});
+    var g2 = newGlobal();
+    var IsCrossRealmArrayConstructor = getSelfHostedValue("IsCrossRealmArrayConstructor");
+    for (var i = 0; i < 20; i++) {
+        assertEq(IsCrossRealmArrayConstructor(Array), false);
+        assertEq(IsCrossRealmArrayConstructor(Math), false);
+        assertEq(IsCrossRealmArrayConstructor(() => 1), false);
+        assertEq(IsCrossRealmArrayConstructor(g1.Array), true);
+        assertEq(IsCrossRealmArrayConstructor(g2.Array), true);
+        assertEq(IsCrossRealmArrayConstructor(g1.assertEq), false);
+        assertEq(IsCrossRealmArrayConstructor(g2.assertEq), false);
+    }
+}
+testIntrinsic();