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