Updates in flutter/testing for the shell refactor (Patch 11).

testing/BUILD.gn

@@ -9,9 +9,13 @@ source_set("testing") {
     "$flutter_root/testing/run_all_unittests.cc",
     "$flutter_root/testing/testing.cc",
     "$flutter_root/testing/testing.h",
+    "$flutter_root/testing/thread_test.cc",
+    "$flutter_root/testing/thread_test.h",
   ]
 
   public_deps = [
+    "$flutter_root/fml",
+    "//garnet/public/lib/fxl",
     "//third_party/googletest:gtest",
   ]
 

testing/thread_test.cc

@@ -0,0 +1,33 @@
+// Copyright 2017 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#define FML_USED_ON_EMBEDDER
+
+#include "flutter/testing/thread_test.h"
+
+namespace testing {
+
+void ThreadTest::SetUp() {
+  thread_ = std::make_unique<fml::Thread>();
+  thread_task_runner_ = thread_->GetTaskRunner();
+
+  fml::MessageLoop::EnsureInitializedForCurrentThread();
+  current_task_runner_ = fml::MessageLoop::GetCurrent().GetTaskRunner();
+}
+
+void ThreadTest::TearDown() {
+  thread_task_runner_ = nullptr;
+  thread_ = nullptr;
+  current_task_runner_ = nullptr;
+}
+
+fxl::RefPtr<fml::TaskRunner> ThreadTest::GetCurrentTaskRunner() {
+  return current_task_runner_;
+}
+
+fxl::RefPtr<fml::TaskRunner> ThreadTest::GetThreadTaskRunner() {
+  return thread_task_runner_;
+}
+
+}  // namespace testing

testing/thread_test.h

@@ -0,0 +1,37 @@
+// Copyright 2017 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef FLUTTER_TESTING_THREAD_TEST_H_
+#define FLUTTER_TESTING_THREAD_TEST_H_
+
+#include <memory>
+
+#include "flutter/fml/message_loop.h"
+#include "flutter/fml/task_runner.h"
+#include "flutter/fml/thread.h"
+#include "gtest/gtest.h"
+#include "lib/fxl/macros.h"
+
+namespace testing {
+
+class ThreadTest : public Test {
+ public:
+  fxl::RefPtr<fml::TaskRunner> GetCurrentTaskRunner();
+
+  fxl::RefPtr<fml::TaskRunner> GetThreadTaskRunner();
+
+ protected:
+  void SetUp() override;
+
+  void TearDown() override;
+
+ private:
+  std::unique_ptr<fml::Thread> thread_;
+  fxl::RefPtr<fml::TaskRunner> thread_task_runner_;
+  fxl::RefPtr<fml::TaskRunner> current_task_runner_;
+};
+
+}  // namespace testing
+
+#endif  // FLUTTER_TESTING_THREAD_TEST_H_