1 files changed, 91 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/global-proxy-globalThis.js b/deps/v8/test/mjsunit/global-proxy-globalThis.js
new file mode 100644
index 0000000000..3b53d74792
--- /dev/null
+++ b/deps/v8/test/mjsunit/global-proxy-globalThis.js
@@ -0,0 +1,91 @@
+// Copyright 2019 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --allow-natives-syntax
+
+{
+  const realm = Realm.createAllowCrossRealmAccess();
+  const foo = Realm.eval(realm, "function foo() { return globalThis.foo }; foo");
+
+  %PrepareFunctionForOptimization(foo);
+  assertSame(foo(), foo);
+  %OptimizeFunctionOnNextCall(foo);
+  assertSame(foo(), foo);
+}
+
+// detachGlobal, old map
+{
+  const realm = Realm.createAllowCrossRealmAccess();
+  const foo = Realm.eval(realm, "function foo() { return globalThis.foo }; foo");
+
+  %PrepareFunctionForOptimization(foo);
+  assertSame(foo(), foo);
+  Realm.detachGlobal(realm);
+  %OptimizeFunctionOnNextCall(foo);
+  assertThrows(foo);
+}
+
+// navigate, old map
+{
+  const realm = Realm.createAllowCrossRealmAccess();
+  const foo = Realm.eval(realm, "function foo() { return globalThis.foo }; foo");
+
+  %PrepareFunctionForOptimization(foo);
+  assertSame(foo(), foo);
+  Realm.navigate(realm);
+  %OptimizeFunctionOnNextCall(foo);
+  assertThrows(foo);
+}
+
+// detachGlobal, new map
+{
+  const realm = Realm.createAllowCrossRealmAccess();
+  const foo = Realm.eval(realm, "function foo() { return globalThis.foo }; foo");
+
+  assertSame(foo(), foo);
+  Realm.detachGlobal(realm);
+  %PrepareFunctionForOptimization(foo);
+  assertThrows(foo);
+  %OptimizeFunctionOnNextCall(foo);
+  assertThrows(foo);
+}
+
+// navigate, new map
+{
+  const realm = Realm.createAllowCrossRealmAccess();
+  const foo = Realm.eval(realm, "function foo() { return globalThis.foo }; foo");
+
+  assertSame(foo(), foo);
+  Realm.navigate(realm);
+  %PrepareFunctionForOptimization(foo);
+  assertThrows(foo);
+  %OptimizeFunctionOnNextCall(foo);
+  assertThrows(foo);
+}
+
+// detachGlobal, old and new map
+{
+  const realm = Realm.createAllowCrossRealmAccess();
+  const foo = Realm.eval(realm, "function foo() { return globalThis.foo }; foo");
+
+  %PrepareFunctionForOptimization(foo);
+  assertSame(foo(), foo);
+  Realm.detachGlobal(realm);
+  assertThrows(foo);
+  %OptimizeFunctionOnNextCall(foo);
+  assertThrows(foo);
+}
+
+// navigate, old and new map
+{
+  const realm = Realm.createAllowCrossRealmAccess();
+  const foo = Realm.eval(realm, "function foo() { return globalThis.foo }; foo");
+
+  %PrepareFunctionForOptimization(foo);
+  assertSame(foo(), foo);
+  Realm.navigate(realm);
+  assertThrows(foo);
+  %OptimizeFunctionOnNextCall(foo);
+  assertThrows(foo);
+}