ui/gfx/display_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ui/gfx/display.h"
   6
   7 #include "base/command_line.h"
   8 #include "testing/gtest/include/gtest/gtest.h"
   9 #include "ui/gfx/geometry/insets.h"
  10 #include "ui/gfx/switches.h"
  11
  12 namespace gfx {
  13
  14 namespace {
  15
  16 TEST(DisplayTest, WorkArea) {
  17   Display display(0, Rect(0, 0, 100, 100));
  18   EXPECT_EQ("0,0 100x100", display.bounds().ToString());
  19   EXPECT_EQ("0,0 100x100", display.work_area().ToString());
  20
  21   display.set_work_area(Rect(3, 4, 90, 80));
  22   EXPECT_EQ("0,0 100x100", display.bounds().ToString());
  23   EXPECT_EQ("3,4 90x80", display.work_area().ToString());
  24
  25   display.SetScaleAndBounds(1.0f, Rect(10, 20, 50, 50));
  26   EXPECT_EQ("10,20 50x50", display.bounds().ToString());
  27   EXPECT_EQ("13,24 40x30", display.work_area().ToString());
  28
  29   display.SetSize(Size(200, 200));
  30   EXPECT_EQ("13,24 190x180", display.work_area().ToString());
  31
  32   display.UpdateWorkAreaFromInsets(Insets(3, 4, 5, 6));
  33   EXPECT_EQ("14,23 190x192", display.work_area().ToString());
  34 }
  35
  36 TEST(DisplayTest, Scale) {
  37   Display display(0, Rect(0, 0, 100, 100));
  38   display.set_work_area(Rect(10, 10, 80, 80));
  39   EXPECT_EQ("0,0 100x100", display.bounds().ToString());
  40   EXPECT_EQ("10,10 80x80", display.work_area().ToString());
  41
  42   // Scale it back to 2x
  43   display.SetScaleAndBounds(2.0f, Rect(0, 0, 140, 140));
  44   EXPECT_EQ("0,0 70x70", display.bounds().ToString());
  45   EXPECT_EQ("10,10 50x50", display.work_area().ToString());
  46
  47   // Scale it back to 1x
  48   display.SetScaleAndBounds(1.0f, Rect(0, 0, 100, 100));
  49   EXPECT_EQ("0,0 100x100", display.bounds().ToString());
  50   EXPECT_EQ("10,10 80x80", display.work_area().ToString());
  51 }
  52
  53 // https://crbug.com/517944
  54 TEST(DisplayTest, ForcedDeviceScaleFactorByCommandLine) {
  55   Display::ResetForceDeviceScaleFactorForTesting();
  56
  57   // Look ma, no value!
  58   base::CommandLine::ForCurrentProcess()->AppendSwitch(
  59       switches::kForceDeviceScaleFactor);
  60
  61   EXPECT_EQ(1, Display::GetForcedDeviceScaleFactor());
  62   Display::ResetForceDeviceScaleFactorForTesting();
  63 }
  64
  65 }  // namespace
  66
  67 }  // namespace gfx