1 /*
2 * Copyright 2020 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <system/graphics.h>
18 #include <ui/FloatRect.h>
19 #include <ui/Point.h>
20 #include <ui/Rect.h>
21 #include <ui/Size.h>
22
23 #include <gtest/gtest.h>
24
25 namespace android::ui {
26
TEST(RectTest,constructDefault)27 TEST(RectTest, constructDefault) {
28 const Rect rect;
29 EXPECT_FALSE(rect.isValid());
30 EXPECT_TRUE(rect.isEmpty());
31 }
32
TEST(RectTest,constructFromWidthAndHeight)33 TEST(RectTest, constructFromWidthAndHeight) {
34 const Rect rect(100, 200);
35 EXPECT_TRUE(rect.isValid());
36 EXPECT_FALSE(rect.isEmpty());
37 EXPECT_EQ(0, rect.top);
38 EXPECT_EQ(0, rect.left);
39 EXPECT_EQ(100, rect.right);
40 EXPECT_EQ(200, rect.bottom);
41 EXPECT_EQ(100, rect.getWidth());
42 EXPECT_EQ(200, rect.getHeight());
43 }
44
TEST(RectTest,constructFromSize)45 TEST(RectTest, constructFromSize) {
46 const Rect rect(Size(100, 200));
47 EXPECT_TRUE(rect.isValid());
48 EXPECT_FALSE(rect.isEmpty());
49 EXPECT_EQ(0, rect.top);
50 EXPECT_EQ(0, rect.left);
51 EXPECT_EQ(100, rect.right);
52 EXPECT_EQ(200, rect.bottom);
53 EXPECT_EQ(100, rect.getWidth());
54 EXPECT_EQ(200, rect.getHeight());
55 }
56
TEST(RectTest,constructFromLTRB)57 TEST(RectTest, constructFromLTRB) {
58 const Rect rect(11, 12, 14, 14);
59 EXPECT_TRUE(rect.isValid());
60 EXPECT_FALSE(rect.isEmpty());
61 EXPECT_EQ(11, rect.left);
62 EXPECT_EQ(12, rect.top);
63 EXPECT_EQ(14, rect.right);
64 EXPECT_EQ(14, rect.bottom);
65 EXPECT_EQ(3, rect.getWidth());
66 EXPECT_EQ(2, rect.getHeight());
67 }
68
TEST(RectTest,constructFromPoints)69 TEST(RectTest, constructFromPoints) {
70 const Rect rect(Point(11, 12), Point(14, 14));
71 EXPECT_TRUE(rect.isValid());
72 EXPECT_FALSE(rect.isEmpty());
73 EXPECT_EQ(11, rect.left);
74 EXPECT_EQ(12, rect.top);
75 EXPECT_EQ(14, rect.right);
76 EXPECT_EQ(14, rect.bottom);
77 EXPECT_EQ(3, rect.getWidth());
78 EXPECT_EQ(2, rect.getHeight());
79 }
80
TEST(RectTest,constructFromFloatRect)81 TEST(RectTest, constructFromFloatRect) {
82 {
83 const Rect rect(FloatRect(10, 20, 30, 40));
84 EXPECT_TRUE(rect.isValid());
85 EXPECT_FALSE(rect.isEmpty());
86 EXPECT_EQ(10, rect.left);
87 EXPECT_EQ(20, rect.top);
88 EXPECT_EQ(30, rect.right);
89 EXPECT_EQ(40, rect.bottom);
90 }
91 // Construct with floating point error
92 {
93 constexpr float kError = 1e-3;
94 const Rect rect(FloatRect(10 - kError, 20 - kError, 30 - kError, 40 - kError));
95 EXPECT_TRUE(rect.isValid());
96 EXPECT_FALSE(rect.isEmpty());
97 EXPECT_EQ(10, rect.left);
98 EXPECT_EQ(20, rect.top);
99 EXPECT_EQ(30, rect.right);
100 EXPECT_EQ(40, rect.bottom);
101 }
102 }
103
TEST(RectTest,makeInvalid)104 TEST(RectTest, makeInvalid) {
105 Rect rect(10, 20, 60, 60);
106 EXPECT_TRUE(rect.isValid());
107 rect.makeInvalid();
108 EXPECT_FALSE(rect.isValid());
109 }
110
TEST(RectTest,clear)111 TEST(RectTest, clear) {
112 Rect rect(10, 20, 60, 60);
113 EXPECT_FALSE(rect.isEmpty());
114 rect.clear();
115 EXPECT_TRUE(rect.isEmpty());
116 }
117
TEST(RectTest,getSize)118 TEST(RectTest, getSize) {
119 const Rect rect(10, 20, 60, 60);
120 EXPECT_EQ(Size(50, 40), rect.getSize());
121 }
122
TEST(RectTest,getBounds)123 TEST(RectTest, getBounds) {
124 const Rect rect(10, 20, 60, 60);
125 const Rect bounds = rect.getBounds();
126 EXPECT_EQ(0, bounds.left);
127 EXPECT_EQ(0, bounds.top);
128 EXPECT_EQ(50, bounds.right);
129 EXPECT_EQ(40, bounds.bottom);
130 EXPECT_EQ(rect.getSize(), bounds.getSize());
131 }
132
TEST(RectTest,getCornerPoints)133 TEST(RectTest, getCornerPoints) {
134 const Rect rect(10, 20, 50, 60);
135 EXPECT_EQ(Point(10, 20), rect.leftTop());
136 EXPECT_EQ(Point(10, 60), rect.leftBottom());
137 EXPECT_EQ(Point(50, 20), rect.rightTop());
138 EXPECT_EQ(Point(50, 60), rect.rightBottom());
139 }
140
TEST(RectTest,operatorEquals)141 TEST(RectTest, operatorEquals) {
142 const Rect rect(10, 20, 50, 60);
143 EXPECT_EQ(rect, rect);
144 EXPECT_NE(Rect(0, 20, 50, 60), rect);
145 EXPECT_NE(Rect(10, 0, 50, 60), rect);
146 EXPECT_NE(Rect(10, 20, 0, 60), rect);
147 EXPECT_NE(Rect(10, 20, 50, 0), rect);
148 }
149
TEST(RectTest,operatorsPlusMinus)150 TEST(RectTest, operatorsPlusMinus) {
151 Rect rect = Rect(10, 20, 50, 60) + Point(1, 2);
152 EXPECT_EQ(Rect(11, 22, 51, 62), rect);
153 rect -= Point(1, 2);
154 EXPECT_EQ(Rect(10, 20, 50, 60), rect);
155
156 rect = Rect(10, 20, 50, 60) - Point(1, 2);
157 EXPECT_EQ(Rect(9, 18, 49, 58), rect);
158 rect += Point(1, 2);
159 EXPECT_EQ(Rect(10, 20, 50, 60), rect);
160 }
161
TEST(RectTest,scale)162 TEST(RectTest, scale) {
163 Rect rect(10, 20, 50, 60);
164 EXPECT_EQ(Rect(20, 60, 100, 180), rect.scale(2.f, 3.f));
165 rect.scaleSelf(2.f, 3.f);
166 EXPECT_EQ(Rect(20, 60, 100, 180), rect);
167
168 rect = Rect(10, 20, 50, 60);
169 constexpr float kError = 1e-3;
170 EXPECT_EQ(Rect(20, 60, 100, 180), rect.scale(2.f - kError, 3.f - kError));
171 rect.scaleSelf(2.f - kError, 3.f - kError);
172 EXPECT_EQ(Rect(20, 60, 100, 180), rect);
173 }
174
TEST(RectTest,inset)175 TEST(RectTest, inset) {
176 Rect rect(10, 20, 50, 60);
177 rect.inset(0, 0, 0, 0);
178 EXPECT_EQ(Rect(10, 20, 50, 60), rect);
179 rect.inset(1, 2, 3, 4);
180 EXPECT_EQ(Rect(11, 22, 47, 56), rect);
181 }
182
TEST(RectTest,intersect)183 TEST(RectTest, intersect) {
184 const Rect rect(10, 20, 50, 60);
185 Rect intersection;
186
187 // Intersect with self is self
188 intersection.makeInvalid();
189 EXPECT_TRUE(rect.intersect(rect, &intersection));
190 EXPECT_EQ(Rect(10, 20, 50, 60), intersection);
191
192 // Intersect with rect contained in us
193 const Rect insideRect(11, 21, 45, 55);
194 intersection.makeInvalid();
195 EXPECT_TRUE(rect.intersect(insideRect, &intersection));
196 EXPECT_EQ(insideRect, intersection);
197
198 // Intersect with rect we are contained in
199 intersection.makeInvalid();
200 EXPECT_TRUE(insideRect.intersect(rect, &intersection));
201 EXPECT_EQ(insideRect, intersection);
202
203 // Empty intersection
204 intersection.makeInvalid();
205 EXPECT_FALSE(rect.intersect(Rect(100, 202, 150, 260), &intersection));
206 EXPECT_TRUE(intersection.isEmpty());
207
208 // Partial intersection
209 const Rect other(30, 40, 70, 80);
210 intersection.makeInvalid();
211 EXPECT_TRUE(rect.intersect(other, &intersection));
212 EXPECT_EQ(Rect(30, 40, 50, 60), intersection);
213
214 // Intersetion is commutative
215 intersection.makeInvalid();
216 EXPECT_TRUE(other.intersect(rect, &intersection));
217 EXPECT_EQ(Rect(30, 40, 50, 60), intersection);
218 }
219
TEST(RectTest,reduce)220 TEST(RectTest, reduce) {
221 const Rect rect(10, 20, 50, 60);
222
223 // Reduce with self is empty
224 EXPECT_TRUE(rect.reduce(rect).isEmpty());
225
226 // Reduce with rect entirely inside is a noop
227 const Rect insideRect(11, 21, 45, 55);
228 EXPECT_EQ(rect, rect.reduce(insideRect));
229
230 // Reduce with rect entirely outside is empty
231 EXPECT_TRUE(insideRect.reduce(rect).isEmpty());
232
233 // Reduce with rect on the right
234 EXPECT_EQ(Rect(10, 20, 20, 60), rect.reduce(Rect(20, 0, 60, 70)));
235
236 // Reduce with rect on the left
237 EXPECT_EQ(Rect(40, 20, 50, 60), rect.reduce(Rect(0, 0, 40, 70)));
238
239 // Reduce with rect at the top
240 EXPECT_EQ(Rect(10, 40, 50, 60), rect.reduce(Rect(0, 0, 70, 40)));
241
242 // Reduce with rect at the bottom
243 EXPECT_EQ(Rect(10, 20, 50, 40), rect.reduce(Rect(0, 40, 70, 70)));
244 }
245
TEST(RectTest,transform)246 TEST(RectTest, transform) {
247 const int32_t width = 100, height = 200;
248 const Rect rect(1, 1, 2, 3);
249 EXPECT_EQ(Rect(98, 1, 99, 3), rect.transform(HAL_TRANSFORM_FLIP_H, width, height));
250 EXPECT_EQ(Rect(1, 197, 2, 199), rect.transform(HAL_TRANSFORM_FLIP_V, width, height));
251 EXPECT_EQ(Rect(197, 1, 199, 2), rect.transform(HAL_TRANSFORM_ROT_90, width, height));
252 EXPECT_EQ(Rect(98, 197, 99, 199), rect.transform(HAL_TRANSFORM_ROT_180, width, height));
253 EXPECT_EQ(Rect(1, 98, 3, 99), rect.transform(HAL_TRANSFORM_ROT_270, width, height));
254 }
255
TEST(RectTest,toFloatRect)256 TEST(RectTest, toFloatRect) {
257 const Rect rect(10, 20, 50, 60);
258 const FloatRect floatRect = rect.toFloatRect();
259 EXPECT_EQ(FloatRect(10.f, 20.f, 50.f, 60.f), floatRect);
260 }
261
TEST(RectTest,RectHash)262 TEST(RectTest, RectHash) {
263 const std::vector<Rect> rects = {
264 Rect(10, 20, 50, 60), Rect(11, 20, 50, 60), Rect(11, 21, 50, 60),
265 Rect(11, 21, 51, 60), Rect(11, 21, 51, 61),
266 };
267
268 for (const auto& a : rects) {
269 for (const auto& b : rects) {
270 const bool hashEq = std::hash<Rect>{}(a) == std::hash<Rect>{}(b);
271 EXPECT_EQ(a == b, hashEq);
272 }
273 }
274 }
275
TEST(RectTest,FloatRectHash)276 TEST(RectTest, FloatRectHash) {
277 const std::vector<FloatRect> floatRects = {
278 Rect(10, 20, 50, 60).toFloatRect(), Rect(11, 20, 50, 60).toFloatRect(),
279 Rect(11, 21, 50, 60).toFloatRect(), Rect(11, 21, 51, 60).toFloatRect(),
280 Rect(11, 21, 51, 61).toFloatRect(),
281 };
282
283 for (const auto& a : floatRects) {
284 for (const auto& b : floatRects) {
285 const bool hashEq = std::hash<FloatRect>{}(a) == std::hash<FloatRect>{}(b);
286 EXPECT_EQ(a == b, hashEq);
287 }
288 }
289 }
290
291 } // namespace android::ui
292