Create mojom and StructTraits for ui/display/types/display_mode.cc

ui/ozone/common/mojo/display_mode_params_struct_traits_unittest.cc

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+#include "base/logging.h"
+#include "base/message_loop/message_loop.h"
+#include "mojo/public/cpp/bindings/binding.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/ozone/common/mojo/display_mode_params_test.mojom.h"
+
+namespace ui {
+
+class DisplayModeParamsTestImpl : public mojom::DisplayModeParamsTest {
+ public:
+  explicit DisplayModeParamsTestImpl(mojo::InterfaceRequest<mojom::DisplayModeParamsTest> request)
+      : binding_(this, std::move(request)) {
+  }
+
+  // DisplayModeParamsTest:
+  void BounceDisplayModeParams(const DisplayMode_Params& input, const BounceDisplayModeParamsCallback& callback) override {
+
+    LOG(ERROR) << "in function bouncing: in.is_interlaced:"  << input.is_interlaced;
+    LOG(ERROR) << "in function bouncing: in.refresh_rate:"  << input.refresh_rate;
+
+    callback.Run(input);
+  }
+
+ private:
+  mojo::Binding<DisplayModeParamsTest> binding_;
+};
+
+void EchoBack(const DisplayMode_Params& input) {
+
+    LOG(ERROR) << "echo: input.is_interlaced:"  << input.is_interlaced;
+    LOG(ERROR) << "echo: input.refresh_rate:"  << input.refresh_rate;
+  }
+
+TEST(MojoDisplayModeStructTraitsTest, Basic) {
+  base::MessageLoop message_loop;
+
+  mojom::DisplayModeParamsTestPtr proxy;
+  LOG(ERROR) << "before proxy";
+  DisplayModeParamsTestImpl impl(MakeRequest(&proxy));
+
+  LOG(ERROR) << "after proxy";
+  //sample random data
+  gfx::Size size(15,29);
+  bool is_interlaced = true;
+  float refresh_rate = 61;
+
+  DisplayMode_Params input;
+  input.size = size;
+  input.is_interlaced = is_interlaced;
+  input.refresh_rate = refresh_rate;
+  DisplayMode_Params output;
+
+  EchoBack(input);
+
+  LOG(ERROR) << "before bouncing: input.is_interlaced:"  << input.is_interlaced;
+  LOG(ERROR) << "before bouncing: input.refresh_rate:"  << input.refresh_rate;
+  EXPECT_TRUE(proxy->BounceDisplayModeParams(input, &output));
+
+  // We want to test each component individually to make sure each data member
+  // was correctly serialized and deserialized, not just the spec.
+  // EXPECT_EQ(input.size, output.size);
+  EXPECT_EQ(input.is_interlaced, output.is_interlaced);
+  EXPECT_EQ(input.refresh_rate, output.refresh_rate);
+}
+
+}