cc/tile_priority_unittest.cc

   1 // Copyright 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 "cc/tile_priority.h"
   6
   7 #include "testing/gtest/include/gtest/gtest.h"
   8
   9 namespace cc {
  10 namespace {
  11
  12 TEST(TilePriorityTest, TimeForBoundsToIntersectWithScroll) {
  13   gfx::Rect target(0, 0, 800, 600);
  14   gfx::Rect current(100, 100, 100, 100);
  15   EXPECT_EQ(0, TilePriority::TimeForBoundsToIntersect(
  16       gfx::Rect(-200, 0, 100, 100), current, 1, target));
  17   EXPECT_EQ(0, TilePriority::TimeForBoundsToIntersect(
  18       gfx::Rect(-100, 0, 100, 100), current, 1, target));
  19   EXPECT_EQ(0, TilePriority::TimeForBoundsToIntersect(
  20       gfx::Rect(400, 400, 100, 100), current, 1, target));
  21
  22   current = gfx::Rect(-300, -300, 100, 100);
  23   EXPECT_EQ(1000, TilePriority::TimeForBoundsToIntersect(
  24       gfx::Rect(0, 0, 100, 100), current, 1, target));
  25   EXPECT_EQ(1000, TilePriority::TimeForBoundsToIntersect(
  26       gfx::Rect(-200, -200, 100, 100), current, 1, target));
  27   EXPECT_EQ(2, TilePriority::TimeForBoundsToIntersect(
  28       gfx::Rect(-400, -400, 100, 100), current, 1, target));
  29 }
  30
  31 TEST(TilePriorityTest, TimeForBoundsToIntersectWithScale) {
  32   gfx::Rect target(0, 0, 800, 600);
  33   gfx::Rect current(100, 100, 100, 100);
  34   EXPECT_EQ(0, TilePriority::TimeForBoundsToIntersect(
  35       gfx::Rect(-200, 0, 200, 200), current, 1, target));
  36   EXPECT_EQ(0, TilePriority::TimeForBoundsToIntersect(
  37       gfx::Rect(-100, 0, 50, 50), current, 1, target));
  38   EXPECT_EQ(0, TilePriority::TimeForBoundsToIntersect(
  39       gfx::Rect(400, 400, 400, 400), current, 1, target));
  40
  41   current = gfx::Rect(-300, -300, 100, 100);
  42   EXPECT_EQ(1000, TilePriority::TimeForBoundsToIntersect(
  43       gfx::Rect(-400, -400, 300, 300), current, 1, target));
  44   EXPECT_EQ(8, TilePriority::TimeForBoundsToIntersect(
  45       gfx::Rect(-275, -275, 50, 50), current, 1, target));
  46   EXPECT_EQ(1, TilePriority::TimeForBoundsToIntersect(
  47       gfx::Rect(-450, -450, 50, 50), current, 1, target));
  48 }
  49
  50 TEST(TilePriorityTest, ManhattanDistanceBetweenRects) {
  51   EXPECT_EQ(0, TilePriority::manhattanDistance(
  52       gfx::RectF(0, 0, 400, 400), gfx::RectF(0, 0, 100, 100)));
  53
  54   EXPECT_EQ(2, TilePriority::manhattanDistance(
  55       gfx::Rect(0, 0, 400, 400), gfx::Rect(-100, -100, 100, 100)));
  56
  57   EXPECT_EQ(1, TilePriority::manhattanDistance(
  58       gfx::Rect(0, 0, 400, 400), gfx::Rect(0, -100, 100, 100)));
  59
  60   EXPECT_EQ(202, TilePriority::manhattanDistance(
  61       gfx::Rect(0, 0, 100, 100), gfx::Rect(200, 200, 100, 100)));
  62 }
  63
  64 }  // namespace
  65 }  // namespace cc