Port Moterm to Mozart.

apps/moterm/gl_helper_unittest.cc

-// Copyright 2015 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.
-
-// Note: This test depends on |GlHelper|, which depends on an implementation of
-// mojo:native_viewport_service and mojo:surfaces_service.
-
-#include "apps/moterm/gl_helper.h"
-
-#include <GLES2/gl2.h>
-
-#include "base/logging.h"
-#include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/message_loop/message_loop.h"
-#include "mojo/public/cpp/application/application_impl.h"
-#include "mojo/public/cpp/application/application_test_base.h"
-#include "mojo/services/surfaces/interfaces/surface_id.mojom.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace {
-
-class GlHelperTest : public mojo::test::ApplicationTestBase,
-                     public GlHelper::Client {
- public:
-  GlHelperTest()
-      : surface_id_changed_call_count_(0),
-        on_frame_displayed_call_count_(0),
-        last_frame_id_(0) {}
-  ~GlHelperTest() override {}
-
-  void SetUp() override {
-    mojo::test::ApplicationTestBase::SetUp();
-
-    initial_size_.width = 100;
-    initial_size_.height = 100;
-    gl_helper_.reset(new GlHelper(this, application_impl()->shell(), GL_RGBA,
-                                  false, initial_size_));
-  }
-
- protected:
-  const mojo::Size& initial_size() const { return initial_size_; }
-  GlHelper* gl_helper() { return gl_helper_.get(); }
-
-  unsigned surface_id_changed_call_count() const {
-    return surface_id_changed_call_count_;
-  }
-  const mojo::SurfaceId* last_surface_id() const {
-    return last_surface_id_.get();
-  }
-  unsigned on_frame_displayed_call_count() const {
-    return on_frame_displayed_call_count_;
-  }
-  uint32_t last_frame_id() const { return last_frame_id_; }
-
- private:
-  // |GlHelper::Client|:
-  void OnSurfaceIdChanged(mojo::SurfaceIdPtr surface_id) override {
-    surface_id_changed_call_count_++;
-    last_surface_id_ = surface_id.Pass();
-    base::MessageLoop::current()->Quit();
-  }
-
-  void OnContextLost() override {
-    // We don't currently test this, but we'll get it on teardown.
-    // TODO(vtl): We probably should figure out how to test this explicitly.
-  }
-
-  void OnFrameDisplayed(uint32_t frame_id) override {
-    on_frame_displayed_call_count_++;
-    last_frame_id_ = frame_id;
-    base::MessageLoop::current()->Quit();
-  }
-
-  mojo::Size initial_size_;
-  scoped_ptr<GlHelper> gl_helper_;
-
-  unsigned surface_id_changed_call_count_;
-  mojo::SurfaceIdPtr last_surface_id_;
-  unsigned on_frame_displayed_call_count_;
-  uint32_t last_frame_id_;
-
-  DISALLOW_COPY_AND_ASSIGN(GlHelperTest);
-};
-
-TEST_F(GlHelperTest, Basic) {
-  gl_helper()->StartFrame();
-  EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError());
-
-  scoped_ptr<unsigned char[]> bitmap(
-      new unsigned char[initial_size().width * initial_size().height * 4]);
-  memset(bitmap.get(), 123, initial_size().width * initial_size().height * 4);
-  glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, initial_size().width,
-                  initial_size().height, GL_RGBA, GL_UNSIGNED_BYTE,
-                  bitmap.get());
-  EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError());
-
-  uint32_t frame_id = gl_helper()->EndFrame();
-
-  // We should get |OnSurfaceIdChanged()| and then |OnFrameDisplayed()|.
-  while (surface_id_changed_call_count() < 1u ||
-         on_frame_displayed_call_count() < 1u)
-    base::MessageLoop::current()->Run();
-
-  EXPECT_EQ(1u, surface_id_changed_call_count());
-  EXPECT_TRUE(last_surface_id());
-  EXPECT_NE(last_surface_id()->local, 0u);
-  EXPECT_NE(last_surface_id()->id_namespace, 0u);
-  EXPECT_EQ(1u, on_frame_displayed_call_count());
-  EXPECT_EQ(frame_id, last_frame_id());
-}
-
-TEST_F(GlHelperTest, SetSurfaceSizeAndMakeCurrent) {
-  // It only creates surfaces lazily, so we have to start/end a frame.
-  gl_helper()->StartFrame();
-  GLuint frame_id = gl_helper()->EndFrame();
-  while (surface_id_changed_call_count() < 1u ||
-         on_frame_displayed_call_count() < 1u)
-    base::MessageLoop::current()->Run();
-  EXPECT_EQ(1u, surface_id_changed_call_count());
-  mojo::SurfaceId surface_id = *last_surface_id();
-  EXPECT_EQ(1u, on_frame_displayed_call_count());
-  EXPECT_EQ(frame_id, last_frame_id());
-
-  // Set a new surface size.
-  mojo::Size new_size;
-  new_size.width = initial_size().width * 2;
-  new_size.height = initial_size().height + 50;
-  gl_helper()->SetSurfaceSize(new_size);
-
-  gl_helper()->StartFrame();
-  EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError());
-
-  GLuint frame_texture = gl_helper()->GetFrameTexture();
-  EXPECT_NE(frame_texture, 0u);
-
-  // Binding it should be OK.
-  glBindTexture(GL_TEXTURE_2D, frame_texture);
-  EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError());
-
-  scoped_ptr<unsigned char[]> bitmap(
-      new unsigned char[new_size.width * new_size.height * 4]);
-  memset(bitmap.get(), 123, new_size.width * new_size.height * 4);
-  glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, new_size.width, new_size.height,
-                  GL_RGBA, GL_UNSIGNED_BYTE, bitmap.get());
-  EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError());
-
-  frame_id = gl_helper()->EndFrame();
-  EXPECT_NE(frame_id, last_frame_id());
-
-  // We should get another |OnSurfaceIdChanged()| and another
-  // |OnFrameDisplayed()|.
-  while (surface_id_changed_call_count() < 2u ||
-         on_frame_displayed_call_count() < 2u)
-    base::MessageLoop::current()->Run();
-  EXPECT_EQ(2u, surface_id_changed_call_count());
-  EXPECT_TRUE(last_surface_id());
-  // Only the local part of the surface ID should have changed.
-  EXPECT_NE(last_surface_id()->local, surface_id.local);
-  EXPECT_EQ(surface_id.id_namespace, last_surface_id()->id_namespace);
-  EXPECT_EQ(2u, on_frame_displayed_call_count());
-  EXPECT_EQ(frame_id, last_frame_id());
-
-  // An out-of-the-blue |MakeCurrent()| should work.
-  gl_helper()->MakeCurrent();
-  EXPECT_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError());
-}
-
-}  // namespace