disambiguation_popup_helper_unittest.cc revision f2477e01787aa58f445919b809d89e252beef54f 
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 "content/renderer/disambiguation_popup_helper.h"
6
7#include "testing/gtest/include/gtest/gtest.h"
8#include "third_party/WebKit/public/platform/WebRect.h"
9#include "third_party/WebKit/public/platform/WebVector.h"
10#include "ui/gfx/rect.h"
11#include "ui/gfx/size.h"
12#include "ui/gfx/size_conversions.h"
13
14// these constants are copied from the implementation class
15namespace {
16const float kDisambiguationPopupMaxScale = 5.0;
17const float kDisambiguationPopupMinScale = 2.0;
18}  // unnamed namespace
19
20namespace content {
21
22class DisambiguationPopupHelperUnittest : public testing::Test {
23 public:
24  DisambiguationPopupHelperUnittest()
25      : kScreenSize_(640, 480)
26      , kVisibleContentSize_(640, 480)
27      , kImplScale_(1) { }
28 protected:
29  const gfx::Size kScreenSize_;
30  const gfx::Size kVisibleContentSize_;
31  const float kImplScale_;
32};
33
34TEST_F(DisambiguationPopupHelperUnittest, ClipByViewport) {
35  gfx::Rect tap_rect(1000, 1000, 10, 10);
36  blink::WebVector<blink::WebRect> target_rects(static_cast<size_t>(1));
37  target_rects[0] = gfx::Rect(-20, -20, 10, 10);
38
39  gfx::Rect zoom_rect;
40  float scale = DisambiguationPopupHelper::ComputeZoomAreaAndScaleFactor(
41      tap_rect, target_rects, kScreenSize_, kVisibleContentSize_, kImplScale_,
42      &zoom_rect);
43
44  EXPECT_TRUE(gfx::Rect(kVisibleContentSize_).Contains(zoom_rect));
45  EXPECT_LE(kDisambiguationPopupMinScale, scale);
46
47  gfx::Size scaled_size = ToCeiledSize(ScaleSize(zoom_rect.size(), scale));
48  EXPECT_TRUE(gfx::Rect(kScreenSize_).Contains(gfx::Rect(scaled_size)));
49}
50
51TEST_F(DisambiguationPopupHelperUnittest, MiniTarget) {
52  gfx::Rect tap_rect(-5, -5, 20, 20);
53  blink::WebVector<blink::WebRect> target_rects(static_cast<size_t>(1));
54  target_rects[0] = gfx::Rect(10, 10, 1, 1);
55
56  gfx::Rect zoom_rect;
57  float scale = DisambiguationPopupHelper::ComputeZoomAreaAndScaleFactor(
58      tap_rect, target_rects, kScreenSize_, kVisibleContentSize_, kImplScale_,
59      &zoom_rect);
60
61  EXPECT_TRUE(gfx::Rect(kVisibleContentSize_).Contains(zoom_rect));
62  EXPECT_EQ(kDisambiguationPopupMaxScale, scale);
63  EXPECT_TRUE(zoom_rect.Contains(target_rects[0]));
64
65  gfx::Size scaled_size = ToCeiledSize(ScaleSize(zoom_rect.size(), scale));
66  EXPECT_TRUE(gfx::Rect(kScreenSize_).Contains(gfx::Rect(scaled_size)));
67}
68
69TEST_F(DisambiguationPopupHelperUnittest, LongLinks) {
70  gfx::Rect tap_rect(10, 10, 20, 20);
71  blink::WebVector<blink::WebRect> target_rects(static_cast<size_t>(2));
72  target_rects[0] = gfx::Rect(15, 15, 1000, 5);
73  target_rects[1] = gfx::Rect(15, 25, 1000, 5);
74
75  gfx::Rect zoom_rect;
76  float scale = DisambiguationPopupHelper::ComputeZoomAreaAndScaleFactor(
77      tap_rect, target_rects, kScreenSize_, kVisibleContentSize_, kImplScale_,
78      &zoom_rect);
79
80  EXPECT_TRUE(gfx::Rect(kVisibleContentSize_).Contains(zoom_rect));
81  EXPECT_EQ(kDisambiguationPopupMaxScale, scale);
82  EXPECT_TRUE(zoom_rect.Contains(tap_rect));
83
84  gfx::Size scaled_size = ToCeiledSize(ScaleSize(zoom_rect.size(), scale));
85  EXPECT_TRUE(gfx::Rect(kScreenSize_).Contains(gfx::Rect(scaled_size)));
86}
87
88}  // namespace content
89