1 files changed, 196 insertions, 0 deletions
diff --git a/src/3rdparty/v8/test/cctest/test-object-observe.cc b/src/3rdparty/v8/test/cctest/test-object-observe.cc
new file mode 100644
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+++ b/src/3rdparty/v8/test/cctest/test-object-observe.cc
@@ -0,0 +1,196 @@
+// Copyright 2012 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "v8.h"
+
+#include "cctest.h"
+
+using namespace v8;
+
+namespace {
+// Need to create a new isolate when FLAG_harmony_observation is on.
+class HarmonyIsolate {
+ public:
+  HarmonyIsolate() {
+    i::FLAG_harmony_observation = true;
+    isolate_ = Isolate::New();
+    isolate_->Enter();
+  }
+
+  ~HarmonyIsolate() {
+    isolate_->Exit();
+    isolate_->Dispose();
+  }
+
+ private:
+  Isolate* isolate_;
+};
+}
+
+TEST(PerIsolateState) {
+  HarmonyIsolate isolate;
+  HandleScope scope;
+  LocalContext context1;
+  CompileRun(
+      "var count = 0;"
+      "var calls = 0;"
+      "var observer = function(records) { count = records.length; calls++ };"
+      "var obj = {};"
+      "Object.observe(obj, observer);");
+  Handle<Value> observer = CompileRun("observer");
+  Handle<Value> obj = CompileRun("obj");
+  Handle<Value> notify_fun1 = CompileRun(
+      "(function() { obj.foo = 'bar'; })");
+  Handle<Value> notify_fun2;
+  {
+    LocalContext context2;
+    context2->Global()->Set(String::New("obj"), obj);
+    notify_fun2 = CompileRun(
+        "(function() { obj.foo = 'baz'; })");
+  }
+  Handle<Value> notify_fun3;
+  {
+    LocalContext context3;
+    context3->Global()->Set(String::New("obj"), obj);
+    notify_fun3 = CompileRun(
+        "(function() { obj.foo = 'bat'; })");
+  }
+  {
+    LocalContext context4;
+    context4->Global()->Set(String::New("observer"), observer);
+    context4->Global()->Set(String::New("fun1"), notify_fun1);
+    context4->Global()->Set(String::New("fun2"), notify_fun2);
+    context4->Global()->Set(String::New("fun3"), notify_fun3);
+    CompileRun("fun1(); fun2(); fun3(); Object.deliverChangeRecords(observer)");
+  }
+  CHECK_EQ(1, CompileRun("calls")->Int32Value());
+  CHECK_EQ(3, CompileRun("count")->Int32Value());
+}
+
+TEST(EndOfMicrotaskDelivery) {
+  HarmonyIsolate isolate;
+  HandleScope scope;
+  LocalContext context;
+  CompileRun(
+      "var obj = {};"
+      "var count = 0;"
+      "var observer = function(records) { count = records.length };"
+      "Object.observe(obj, observer);"
+      "obj.foo = 'bar';");
+  CHECK_EQ(1, CompileRun("count")->Int32Value());
+}
+
+TEST(DeliveryOrdering) {
+  HarmonyIsolate isolate;
+  HandleScope scope;
+  LocalContext context;
+  CompileRun(
+      "var obj1 = {};"
+      "var obj2 = {};"
+      "var ordering = [];"
+      "function observer2() { ordering.push(2); };"
+      "function observer1() { ordering.push(1); };"
+      "function observer3() { ordering.push(3); };"
+      "Object.observe(obj1, observer1);"
+      "Object.observe(obj1, observer2);"
+      "Object.observe(obj1, observer3);"
+      "obj1.foo = 'bar';");
+  CHECK_EQ(3, CompileRun("ordering.length")->Int32Value());
+  CHECK_EQ(1, CompileRun("ordering[0]")->Int32Value());
+  CHECK_EQ(2, CompileRun("ordering[1]")->Int32Value());
+  CHECK_EQ(3, CompileRun("ordering[2]")->Int32Value());
+  CompileRun(
+      "ordering = [];"
+      "Object.observe(obj2, observer3);"
+      "Object.observe(obj2, observer2);"
+      "Object.observe(obj2, observer1);"
+      "obj2.foo = 'baz'");
+  CHECK_EQ(3, CompileRun("ordering.length")->Int32Value());
+  CHECK_EQ(1, CompileRun("ordering[0]")->Int32Value());
+  CHECK_EQ(2, CompileRun("ordering[1]")->Int32Value());
+  CHECK_EQ(3, CompileRun("ordering[2]")->Int32Value());
+}
+
+TEST(DeliveryOrderingReentrant) {
+  HarmonyIsolate isolate;
+  HandleScope scope;
+  LocalContext context;
+  CompileRun(
+      "var obj = {};"
+      "var reentered = false;"
+      "var ordering = [];"
+      "function observer1() { ordering.push(1); };"
+      "function observer2() {"
+      "  if (!reentered) {"
+      "    obj.foo = 'baz';"
+      "    reentered = true;"
+      "  }"
+      "  ordering.push(2);"
+      "};"
+      "function observer3() { ordering.push(3); };"
+      "Object.observe(obj, observer1);"
+      "Object.observe(obj, observer2);"
+      "Object.observe(obj, observer3);"
+      "obj.foo = 'bar';");
+  CHECK_EQ(5, CompileRun("ordering.length")->Int32Value());
+  CHECK_EQ(1, CompileRun("ordering[0]")->Int32Value());
+  CHECK_EQ(2, CompileRun("ordering[1]")->Int32Value());
+  CHECK_EQ(3, CompileRun("ordering[2]")->Int32Value());
+  // Note that we re-deliver to observers 1 and 2, while observer3
+  // already received the second record during the first round.
+  CHECK_EQ(1, CompileRun("ordering[3]")->Int32Value());
+  CHECK_EQ(2, CompileRun("ordering[1]")->Int32Value());
+}
+
+TEST(ObjectHashTableGrowth) {
+  HarmonyIsolate isolate;
+  HandleScope scope;
+  // Initializing this context sets up initial hash tables.
+  LocalContext context;
+  Handle<Value> obj = CompileRun("obj = {};");
+  Handle<Value> observer = CompileRun(
+      "var ran = false;"
+      "(function() { ran = true })");
+  {
+    // As does initializing this context.
+    LocalContext context2;
+    context2->Global()->Set(String::New("obj"), obj);
+    context2->Global()->Set(String::New("observer"), observer);
+    CompileRun(
+        "var objArr = [];"
+        // 100 objects should be enough to make the hash table grow
+        // (and thus relocate).
+        "for (var i = 0; i < 100; ++i) {"
+        "  objArr.push({});"
+        "  Object.observe(objArr[objArr.length-1], function(){});"
+        "}"
+        "Object.observe(obj, observer);");
+  }
+  // obj is now marked "is_observed", but our map has moved.
+  CompileRun("obj.foo = 'bar'");
+  CHECK(CompileRun("ran")->BooleanValue());
+}