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      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/resources/tile_priority.h"
      6 
      7 #include "testing/gtest/include/gtest/gtest.h"
      8 
      9 namespace cc {
     10 namespace {
     11 
     12 TEST(TilePriorityTest, TimeForBoundsToIntersectWithScroll) {
     13   const float inf = std::numeric_limits<float>::infinity();
     14   gfx::Rect target(0, 0, 800, 600);
     15   gfx::Rect current(100, 100, 100, 100);
     16   EXPECT_EQ(0, TilePriority::TimeForBoundsToIntersect(
     17       gfx::Rect(-200, 0, 100, 100), current, 1, target));
     18   EXPECT_EQ(0, TilePriority::TimeForBoundsToIntersect(
     19       gfx::Rect(-100, 0, 100, 100), current, 1, target));
     20   EXPECT_EQ(0, TilePriority::TimeForBoundsToIntersect(
     21       gfx::Rect(400, 400, 100, 100), current, 1, target));
     22 
     23   current = gfx::Rect(-300, -300, 100, 100);
     24   EXPECT_EQ(inf, TilePriority::TimeForBoundsToIntersect(
     25       gfx::Rect(0, 0, 100, 100), current, 1, target));
     26   EXPECT_EQ(inf, TilePriority::TimeForBoundsToIntersect(
     27       gfx::Rect(-200, -200, 100, 100), current, 1, target));
     28   EXPECT_EQ(2, TilePriority::TimeForBoundsToIntersect(
     29       gfx::Rect(-400, -400, 100, 100), current, 1, target));
     30 }
     31 
     32 TEST(TilePriorityTest, TimeForBoundsToIntersectWithScale) {
     33   const float inf = std::numeric_limits<float>::infinity();
     34   gfx::Rect target(0, 0, 800, 600);
     35   gfx::Rect current(100, 100, 100, 100);
     36   EXPECT_EQ(0, TilePriority::TimeForBoundsToIntersect(
     37       gfx::Rect(-200, 0, 200, 200), current, 1, target));
     38   EXPECT_EQ(0, TilePriority::TimeForBoundsToIntersect(
     39       gfx::Rect(-100, 0, 50, 50), current, 1, target));
     40   EXPECT_EQ(0, TilePriority::TimeForBoundsToIntersect(
     41       gfx::Rect(400, 400, 400, 400), current, 1, target));
     42 
     43   current = gfx::Rect(-300, -300, 100, 100);
     44   EXPECT_EQ(inf, TilePriority::TimeForBoundsToIntersect(
     45       gfx::Rect(-400, -400, 300, 300), current, 1, target));
     46   EXPECT_EQ(8, TilePriority::TimeForBoundsToIntersect(
     47       gfx::Rect(-275, -275, 50, 50), current, 1, target));
     48   EXPECT_EQ(1, TilePriority::TimeForBoundsToIntersect(
     49       gfx::Rect(-450, -450, 50, 50), current, 1, target));
     50 }
     51 
     52 }  // namespace
     53 }  // namespace cc
     54