Rename PlatformScreen to ScreenManager.

services/ui/display/platform_screen_ozone_unittests.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 <memory>
-#include <vector>
-
-#include "base/command_line.h"
-#include "base/logging.h"
-#include "base/memory/ptr_util.h"
-#include "base/strings/string_number_conversions.h"
-#include "services/ui/display/platform_screen.h"
-#include "services/ui/display/platform_screen_ozone.h"
-#include "services/ui/display/viewport_metrics.h"
-#include "testing/gmock/include/gmock/gmock.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "ui/display/display_switches.h"
-#include "ui/display/fake_display_snapshot.h"
-#include "ui/display/types/display_constants.h"
-#include "ui/display/types/display_mode.h"
-#include "ui/display/types/display_snapshot.h"
-#include "ui/ozone/public/ozone_platform.h"
-
-namespace display {
-
-using ui::DisplayMode;
-using ui::DisplaySnapshot;
-using testing::IsEmpty;
-using testing::SizeIs;
-
-namespace {
-
-// Holds info about the display state we want to test.
-struct DisplayState {
-  int64_t id;
-  ViewportMetrics metrics;
-};
-
-// Matchers that operate on DisplayState.
-MATCHER_P(DisplayId, display_id, "") {
-  *result_listener << "has id " << arg.id;
-  return arg.id == display_id;
-}
-
-MATCHER_P(DisplaySize, size_string, "") {
-  *result_listener << "has size " << arg.metrics.bounds.size().ToString();
-  return arg.metrics.bounds.size().ToString() == size_string;
-}
-
-MATCHER_P(DisplayOrigin, origin_string, "") {
-  *result_listener << "has origin " << arg.metrics.bounds.origin().ToString();
-  return arg.metrics.bounds.origin().ToString() == origin_string;
-}
-
-// Make a DisplaySnapshot with specified id and size.
-std::unique_ptr<DisplaySnapshot> MakeSnapshot(int64_t id,
-                                              const gfx::Size& size) {
-  return FakeDisplaySnapshot::Builder()
-      .SetId(id)
-      .SetNativeMode(size)
-      .SetCurrentMode(size)
-      .Build();
-}
-
-// Test delegate to track what functions calls the delegate receives.
-class TestPlatformScreenDelegate : public PlatformScreenDelegate {
- public:
-  TestPlatformScreenDelegate() {}
-  ~TestPlatformScreenDelegate() override {}
-
-  const std::vector<DisplayState>& added() const { return added_; }
-  const std::vector<DisplayState>& modified() const { return modified_; }
-
-  // Returns a string containing the function calls that PlatformScreenDelegate
-  // has received in the order they occured. Each function call will be in the
-  // form "<action>(<id>)" and multiple function calls will be separated by ";".
-  // For example, if display 2 was added then display 1 was modified, changes()
-  // would return "Added(2);Modified(1)".
-  const std::string& changes() const { return changes_; }
-
-  void Reset() {
-    added_.clear();
-    modified_.clear();
-    changes_.clear();
-  }
-
- private:
-  void AddChange(const std::string& name, const std::string& value) {
-    if (!changes_.empty())
-      changes_ += ";";
-    changes_ += name + "(" + value + ")";
-  }
-
-  void OnDisplayAdded(int64_t id, const ViewportMetrics& metrics) override {
-    added_.push_back({id, metrics});
-    AddChange("Added", base::Int64ToString(id));
-  }
-
-  void OnDisplayRemoved(int64_t id) override {
-    AddChange("Removed", base::Int64ToString(id));
-  }
-
-  void OnDisplayModified(int64_t id, const ViewportMetrics& metrics) override {
-    modified_.push_back({id, metrics});
-    AddChange("Modified", base::Int64ToString(id));
-  }
-
-  void OnPrimaryDisplayChanged(int64_t primary_display_id) override {
-    AddChange("Primary", base::Int64ToString(primary_display_id));
-  }
-
-  std::vector<DisplayState> added_;
-  std::vector<DisplayState> modified_;
-  std::string changes_;
-
-  DISALLOW_COPY_AND_ASSIGN(TestPlatformScreenDelegate);
-};
-
-}  // namespace
-
-// Test fixture with helpers to act like ui::DisplayConfigurator and send
-// OnDisplayModeChanged() to PlatformScreenOzone.
-class PlatformScreenOzoneTest : public testing::Test {
- public:
-  PlatformScreenOzoneTest() {}
-  ~PlatformScreenOzoneTest() override {}
-
-  PlatformScreenOzone* platform_screen() { return platform_screen_.get(); }
-  TestPlatformScreenDelegate* delegate() { return &delegate_; }
-
-  // Adds a display snapshot with specified ID and default size.
-  void AddDisplay(int64_t id) { return AddDisplay(id, gfx::Size(1024, 768)); }
-
-  // Adds a display snapshot with specified ID and size to list of snapshots.
-  void AddDisplay(int64_t id, const gfx::Size& size) {
-    snapshots_.push_back(MakeSnapshot(id, size));
-    TriggerOnDisplayModeChanged();
-  }
-
-  // Removes display snapshot with specified ID.
-  void RemoveDisplay(int64_t id) {
-    snapshots_.erase(
-        std::remove_if(snapshots_.begin(), snapshots_.end(),
-                       [id](std::unique_ptr<DisplaySnapshot>& snapshot) {
-                         return snapshot->display_id() == id;
-                       }));
-    TriggerOnDisplayModeChanged();
-  }
-
-  // Modify the size of the display snapshot with specified ID.
-  void ModifyDisplay(int64_t id, const gfx::Size& size) {
-    DisplaySnapshot* snapshot = GetSnapshotById(id);
-
-    const DisplayMode* new_mode = nullptr;
-    for (auto& mode : snapshot->modes()) {
-      if (mode->size() == size) {
-        new_mode = mode.get();
-        break;
-      }
-    }
-
-    if (!new_mode) {
-      snapshot->add_mode(new DisplayMode(size, false, 30.0f));
-      new_mode = snapshot->modes().back().get();
-    }
-
-    snapshot->set_current_mode(new_mode);
-    TriggerOnDisplayModeChanged();
-  }
-
-  // Calls OnDisplayModeChanged with our list of display snapshots.
-  void TriggerOnDisplayModeChanged() {
-    std::vector<DisplaySnapshot*> snapshots_ptrs;
-    for (auto& snapshot : snapshots_) {
-      snapshots_ptrs.push_back(snapshot.get());
-    }
-    platform_screen_->OnDisplayModeChanged(snapshots_ptrs);
-  }
-
- private:
-  DisplaySnapshot* GetSnapshotById(int64_t id) {
-    for (auto& snapshot : snapshots_) {
-      if (snapshot->display_id() == id)
-        return snapshot.get();
-    }
-    return nullptr;
-  }
-
-  // testing::Test:
-  void SetUp() override {
-    base::CommandLine::ForCurrentProcess()->AppendSwitchNative(
-        switches::kScreenConfig, "none");
-
-    testing::Test::SetUp();
-    ui::OzonePlatform::InitializeForUI();
-    platform_screen_ = base::MakeUnique<PlatformScreenOzone>();
-    platform_screen_->Init(&delegate_);
-
-    // Have all tests start with a 1024x768 display by default.
-    AddDisplay(1, gfx::Size(1024, 768));
-    TriggerOnDisplayModeChanged();
-
-    // Double check the expected display exists and clear counters.
-    ASSERT_THAT(delegate()->added(), SizeIs(1));
-    ASSERT_THAT(delegate_.added()[0], DisplayId(1));
-    ASSERT_THAT(delegate_.added()[0], DisplayOrigin("0,0"));
-    ASSERT_THAT(delegate_.added()[0], DisplaySize("1024x768"));
-    ASSERT_EQ("Added(1);Primary(1)", delegate()->changes());
-    delegate_.Reset();
-  }
-
-  void TearDown() override {
-    snapshots_.clear();
-    delegate_.Reset();
-    platform_screen_.reset();
-  }
-
-  TestPlatformScreenDelegate delegate_;
-  std::unique_ptr<PlatformScreenOzone> platform_screen_;
-  std::vector<std::unique_ptr<DisplaySnapshot>> snapshots_;
-};
-
-TEST_F(PlatformScreenOzoneTest, AddDisplay) {
-  AddDisplay(2);
-
-  // Check that display 2 was added.
-  EXPECT_EQ("Added(2)", delegate()->changes());
-}
-
-TEST_F(PlatformScreenOzoneTest, RemoveDisplay) {
-  AddDisplay(2);
-  delegate()->Reset();
-
-  RemoveDisplay(2);
-
-  // Check that display 2 was removed.
-  EXPECT_EQ("Removed(2)", delegate()->changes());
-}
-
-TEST_F(PlatformScreenOzoneTest, RemoveFirstDisplay) {
-  AddDisplay(2);
-  delegate()->Reset();
-
-  RemoveDisplay(1);
-
-  // Check that display 1 was removed and display 2 was modified due to the
-  // origin changing.
-  EXPECT_EQ("Primary(2);Removed(1);Modified(2)", delegate()->changes());
-  ASSERT_THAT(delegate()->modified(), SizeIs(1));
-  EXPECT_THAT(delegate()->modified()[0], DisplayId(2));
-  EXPECT_THAT(delegate()->modified()[0], DisplayOrigin("0,0"));
-}
-
-TEST_F(PlatformScreenOzoneTest, RemoveMultipleDisplay) {
-  AddDisplay(2);
-  AddDisplay(3);
-  delegate()->Reset();
-
-  RemoveDisplay(2);
-  RemoveDisplay(3);
-
-  // Check that display 2 was removed and display 3 is modifed (origin change),
-  // then display 3 was removed.
-  EXPECT_EQ("Removed(2);Modified(3);Removed(3)", delegate()->changes());
-}
-
-TEST_F(PlatformScreenOzoneTest, ModifyDisplaySize) {
-  const gfx::Size size1(1920, 1200);
-  const gfx::Size size2(1680, 1050);
-
-  AddDisplay(2, size1);
-
-  // Check that display 2 was added with expected size.
-  ASSERT_THAT(delegate()->added(), SizeIs(1));
-  EXPECT_THAT(delegate()->added()[0], DisplayId(2));
-  EXPECT_THAT(delegate()->added()[0], DisplaySize(size1.ToString()));
-  EXPECT_EQ("Added(2)", delegate()->changes());
-  delegate()->Reset();
-
-  ModifyDisplay(2, size2);
-
-  // Check that display 2 was modified to have the new expected size.
-  ASSERT_THAT(delegate()->modified(), SizeIs(1));
-  EXPECT_THAT(delegate()->modified()[0], DisplayId(2));
-  EXPECT_THAT(delegate()->modified()[0], DisplaySize(size2.ToString()));
-  EXPECT_EQ("Modified(2)", delegate()->changes());
-}
-
-TEST_F(PlatformScreenOzoneTest, ModifyFirstDisplaySize) {
-  const gfx::Size size(1920, 1200);
-
-  AddDisplay(2, size);
-
-  // Check that display 2 has the expected initial origin.
-  EXPECT_EQ("Added(2)", delegate()->changes());
-  ASSERT_THAT(delegate()->added(), SizeIs(1));
-  EXPECT_THAT(delegate()->added()[0], DisplayOrigin("1024,0"));
-  delegate()->Reset();
-
-  ModifyDisplay(1, size);
-
-  // Check that display 1 was modified with a new size and display 2 origin was
-  // modified after.
-  EXPECT_EQ("Modified(1);Modified(2)", delegate()->changes());
-  ASSERT_THAT(delegate()->modified(), SizeIs(2));
-  EXPECT_THAT(delegate()->modified()[0], DisplayId(1));
-  EXPECT_THAT(delegate()->modified()[0], DisplaySize(size.ToString()));
-  EXPECT_THAT(delegate()->modified()[1], DisplayId(2));
-  EXPECT_THAT(delegate()->modified()[1], DisplayOrigin("1920,0"));
-}
-
-TEST_F(PlatformScreenOzoneTest, RemovePrimaryDisplay) {
-  AddDisplay(2);
-  delegate()->Reset();
-
-  RemoveDisplay(1);
-
-  // Check the primary display changed because the old primary was removed.
-  EXPECT_EQ("Primary(2);Removed(1);Modified(2)", delegate()->changes());
-}
-
-TEST_F(PlatformScreenOzoneTest, RemoveLastDisplay) {
-  RemoveDisplay(1);
-
-  // Check that display 1 is removed and no updates for the primary display are
-  // received.
-  EXPECT_EQ("Removed(1)", delegate()->changes());
-}
-
-TEST_F(PlatformScreenOzoneTest, SwapPrimaryDisplay) {
-  AddDisplay(2);
-  delegate()->Reset();
-
-  platform_screen()->SwapPrimaryDisplay();
-  EXPECT_EQ("Primary(2)", delegate()->changes());
-}
-
-TEST_F(PlatformScreenOzoneTest, SwapPrimaryThreeDisplays) {
-  AddDisplay(2);
-  AddDisplay(3);
-  EXPECT_EQ("Added(2);Added(3)", delegate()->changes());
-  delegate()->Reset();
-
-  platform_screen()->SwapPrimaryDisplay();
-  platform_screen()->SwapPrimaryDisplay();
-  platform_screen()->SwapPrimaryDisplay();
-  EXPECT_EQ("Primary(2);Primary(3);Primary(1)", delegate()->changes());
-}
-
-}  // namespace display