ui/base/touch/selection_bound_unittest.cc

   1 // Copyright 2014 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/base/touch/selection_bound.h"
   6
   7 #include "testing/gtest/include/gtest/gtest.h"
   8 #include "ui/gfx/geometry/rect.h"
   9
  10 namespace ui {
  11
  12 TEST(SelectionBoundTest, RectBetweenSelectionBounds) {
  13   SelectionBound b1, b2;
  14   // Simple case of aligned vertical bounds of equal height
  15   b1.SetEdge(gfx::Point(0, 20), gfx::Point(0, 25));
  16   b2.SetEdge(gfx::Point(110, 20), gfx::Point(110, 25));
  17   gfx::Rect expected_rect(
  18       b1.edge_top_rounded().x(),
  19       b1.edge_top_rounded().y(),
  20       b2.edge_top_rounded().x() - b1.edge_top_rounded().x(),
  21       b2.edge_bottom_rounded().y() - b2.edge_top_rounded().y());
  22   EXPECT_EQ(expected_rect, RectBetweenSelectionBounds(b1, b2));
  23   EXPECT_EQ(expected_rect, RectBetweenSelectionBounds(b2, b1));
  24
  25   // Parallel vertical bounds of different heights
  26   b1.SetEdge(gfx::Point(10, 20), gfx::Point(10, 25));
  27   b2.SetEdge(gfx::Point(110, 0), gfx::Point(110, 35));
  28   expected_rect = gfx::Rect(
  29       b1.edge_top_rounded().x(),
  30       b2.edge_top_rounded().y(),
  31       b2.edge_top_rounded().x() - b1.edge_top_rounded().x(),
  32       b2.edge_bottom_rounded().y() - b2.edge_top_rounded().y());
  33   EXPECT_EQ(expected_rect, RectBetweenSelectionBounds(b1, b2));
  34   EXPECT_EQ(expected_rect, RectBetweenSelectionBounds(b2, b1));
  35
  36   b1.SetEdge(gfx::Point(10, 20), gfx::Point(10, 30));
  37   b2.SetEdge(gfx::Point(110, 25), gfx::Point(110, 45));
  38   expected_rect = gfx::Rect(
  39       b1.edge_top_rounded().x(),
  40       b1.edge_top_rounded().y(),
  41       b2.edge_top_rounded().x() - b1.edge_top_rounded().x(),
  42       b2.edge_bottom_rounded().y() - b1.edge_top_rounded().y());
  43   EXPECT_EQ(expected_rect, RectBetweenSelectionBounds(b1, b2));
  44   EXPECT_EQ(expected_rect, RectBetweenSelectionBounds(b2, b1));
  45
  46   b1.SetEdge(gfx::Point(10, 20), gfx::Point(10, 30));
  47   b2.SetEdge(gfx::Point(110, 40), gfx::Point(110, 60));
  48   expected_rect = gfx::Rect(
  49       b1.edge_top_rounded().x(),
  50       b1.edge_top_rounded().y(),
  51       b2.edge_top_rounded().x() - b1.edge_top_rounded().x(),
  52       b2.edge_bottom_rounded().y() - b1.edge_top_rounded().y());
  53   EXPECT_EQ(expected_rect, RectBetweenSelectionBounds(b1, b2));
  54   EXPECT_EQ(expected_rect, RectBetweenSelectionBounds(b2, b1));
  55
  56   // Overlapping vertical bounds
  57   b1.SetEdge(gfx::Point(10, 20), gfx::Point(10, 30));
  58   b2.SetEdge(gfx::Point(10, 25), gfx::Point(10, 40));
  59   expected_rect = gfx::Rect(
  60       b1.edge_top_rounded().x(),
  61       b1.edge_top_rounded().y(),
  62       0,
  63       b2.edge_bottom_rounded().y() - b1.edge_top_rounded().y());
  64   EXPECT_EQ(expected_rect, RectBetweenSelectionBounds(b1, b2));
  65   EXPECT_EQ(expected_rect, RectBetweenSelectionBounds(b2, b1));
  66
  67   // Non-vertical bounds: "\ \"
  68   b1.SetEdge(gfx::Point(10, 20), gfx::Point(20, 30));
  69   b2.SetEdge(gfx::Point(110, 40), gfx::Point(120, 60));
  70   expected_rect = gfx::Rect(
  71       b1.edge_top_rounded().x(),
  72       b1.edge_top_rounded().y(),
  73       b2.edge_bottom_rounded().x() - b1.edge_top_rounded().x(),
  74       b2.edge_bottom_rounded().y() - b1.edge_top_rounded().y());
  75   EXPECT_EQ(expected_rect, RectBetweenSelectionBounds(b1, b2));
  76   EXPECT_EQ(expected_rect, RectBetweenSelectionBounds(b2, b1));
  77
  78   // Non-vertical bounds: "/ \"
  79   b1.SetEdge(gfx::Point(20, 30), gfx::Point(0, 40));
  80   b2.SetEdge(gfx::Point(110, 30), gfx::Point(120, 40));
  81   expected_rect = gfx::Rect(
  82       b1.edge_bottom_rounded().x(),
  83       b1.edge_top_rounded().y(),
  84       b2.edge_bottom_rounded().x() - b1.edge_bottom_rounded().x(),
  85       b2.edge_bottom_rounded().y() - b2.edge_top_rounded().y());
  86   EXPECT_EQ(expected_rect, RectBetweenSelectionBounds(b1, b2));
  87   EXPECT_EQ(expected_rect, RectBetweenSelectionBounds(b2, b1));
  88 }
  89
  90 }  // namespace ui