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/*
* Copyright 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <system/graphics.h>
#include <ui/FloatRect.h>
#include <ui/Point.h>
#include <ui/Rect.h>
#include <ui/Size.h>
#include <gtest/gtest.h>
namespace android::ui {
TEST(RectTest, constructDefault) {
const Rect rect;
EXPECT_FALSE(rect.isValid());
EXPECT_TRUE(rect.isEmpty());
}
TEST(RectTest, constructFromWidthAndHeight) {
const Rect rect(100, 200);
EXPECT_TRUE(rect.isValid());
EXPECT_FALSE(rect.isEmpty());
EXPECT_EQ(0, rect.top);
EXPECT_EQ(0, rect.left);
EXPECT_EQ(100, rect.right);
EXPECT_EQ(200, rect.bottom);
EXPECT_EQ(100, rect.getWidth());
EXPECT_EQ(200, rect.getHeight());
}
TEST(RectTest, constructFromSize) {
const Rect rect(Size(100, 200));
EXPECT_TRUE(rect.isValid());
EXPECT_FALSE(rect.isEmpty());
EXPECT_EQ(0, rect.top);
EXPECT_EQ(0, rect.left);
EXPECT_EQ(100, rect.right);
EXPECT_EQ(200, rect.bottom);
EXPECT_EQ(100, rect.getWidth());
EXPECT_EQ(200, rect.getHeight());
}
TEST(RectTest, constructFromLTRB) {
const Rect rect(11, 12, 14, 14);
EXPECT_TRUE(rect.isValid());
EXPECT_FALSE(rect.isEmpty());
EXPECT_EQ(11, rect.left);
EXPECT_EQ(12, rect.top);
EXPECT_EQ(14, rect.right);
EXPECT_EQ(14, rect.bottom);
EXPECT_EQ(3, rect.getWidth());
EXPECT_EQ(2, rect.getHeight());
}
TEST(RectTest, constructFromPoints) {
const Rect rect(Point(11, 12), Point(14, 14));
EXPECT_TRUE(rect.isValid());
EXPECT_FALSE(rect.isEmpty());
EXPECT_EQ(11, rect.left);
EXPECT_EQ(12, rect.top);
EXPECT_EQ(14, rect.right);
EXPECT_EQ(14, rect.bottom);
EXPECT_EQ(3, rect.getWidth());
EXPECT_EQ(2, rect.getHeight());
}
TEST(RectTest, constructFromFloatRect) {
{
const Rect rect(FloatRect(10, 20, 30, 40));
EXPECT_TRUE(rect.isValid());
EXPECT_FALSE(rect.isEmpty());
EXPECT_EQ(10, rect.left);
EXPECT_EQ(20, rect.top);
EXPECT_EQ(30, rect.right);
EXPECT_EQ(40, rect.bottom);
}
// Construct with floating point error
{
constexpr float kError = 1e-3;
const Rect rect(FloatRect(10 - kError, 20 - kError, 30 - kError, 40 - kError));
EXPECT_TRUE(rect.isValid());
EXPECT_FALSE(rect.isEmpty());
EXPECT_EQ(10, rect.left);
EXPECT_EQ(20, rect.top);
EXPECT_EQ(30, rect.right);
EXPECT_EQ(40, rect.bottom);
}
}
TEST(RectTest, makeInvalid) {
Rect rect(10, 20, 60, 60);
EXPECT_TRUE(rect.isValid());
rect.makeInvalid();
EXPECT_FALSE(rect.isValid());
}
TEST(RectTest, clear) {
Rect rect(10, 20, 60, 60);
EXPECT_FALSE(rect.isEmpty());
rect.clear();
EXPECT_TRUE(rect.isEmpty());
}
TEST(RectTest, getSize) {
const Rect rect(10, 20, 60, 60);
EXPECT_EQ(Size(50, 40), rect.getSize());
}
TEST(RectTest, getBounds) {
const Rect rect(10, 20, 60, 60);
const Rect bounds = rect.getBounds();
EXPECT_EQ(0, bounds.left);
EXPECT_EQ(0, bounds.top);
EXPECT_EQ(50, bounds.right);
EXPECT_EQ(40, bounds.bottom);
EXPECT_EQ(rect.getSize(), bounds.getSize());
}
TEST(RectTest, getCornerPoints) {
const Rect rect(10, 20, 50, 60);
EXPECT_EQ(Point(10, 20), rect.leftTop());
EXPECT_EQ(Point(10, 60), rect.leftBottom());
EXPECT_EQ(Point(50, 20), rect.rightTop());
EXPECT_EQ(Point(50, 60), rect.rightBottom());
}
TEST(RectTest, operatorEquals) {
const Rect rect(10, 20, 50, 60);
EXPECT_EQ(rect, rect);
EXPECT_NE(Rect(0, 20, 50, 60), rect);
EXPECT_NE(Rect(10, 0, 50, 60), rect);
EXPECT_NE(Rect(10, 20, 0, 60), rect);
EXPECT_NE(Rect(10, 20, 50, 0), rect);
}
TEST(RectTest, operatorsPlusMinus) {
Rect rect = Rect(10, 20, 50, 60) + Point(1, 2);
EXPECT_EQ(Rect(11, 22, 51, 62), rect);
rect -= Point(1, 2);
EXPECT_EQ(Rect(10, 20, 50, 60), rect);
rect = Rect(10, 20, 50, 60) - Point(1, 2);
EXPECT_EQ(Rect(9, 18, 49, 58), rect);
rect += Point(1, 2);
EXPECT_EQ(Rect(10, 20, 50, 60), rect);
}
TEST(RectTest, scale) {
Rect rect(10, 20, 50, 60);
EXPECT_EQ(Rect(20, 60, 100, 180), rect.scale(2.f, 3.f));
rect.scaleSelf(2.f, 3.f);
EXPECT_EQ(Rect(20, 60, 100, 180), rect);
rect = Rect(10, 20, 50, 60);
constexpr float kError = 1e-3;
EXPECT_EQ(Rect(20, 60, 100, 180), rect.scale(2.f - kError, 3.f - kError));
rect.scaleSelf(2.f - kError, 3.f - kError);
EXPECT_EQ(Rect(20, 60, 100, 180), rect);
}
TEST(RectTest, inset) {
Rect rect(10, 20, 50, 60);
rect.inset(0, 0, 0, 0);
EXPECT_EQ(Rect(10, 20, 50, 60), rect);
rect.inset(1, 2, 3, 4);
EXPECT_EQ(Rect(11, 22, 47, 56), rect);
}
TEST(RectTest, intersect) {
const Rect rect(10, 20, 50, 60);
Rect intersection;
// Intersect with self is self
intersection.makeInvalid();
EXPECT_TRUE(rect.intersect(rect, &intersection));
EXPECT_EQ(Rect(10, 20, 50, 60), intersection);
// Intersect with rect contained in us
const Rect insideRect(11, 21, 45, 55);
intersection.makeInvalid();
EXPECT_TRUE(rect.intersect(insideRect, &intersection));
EXPECT_EQ(insideRect, intersection);
// Intersect with rect we are contained in
intersection.makeInvalid();
EXPECT_TRUE(insideRect.intersect(rect, &intersection));
EXPECT_EQ(insideRect, intersection);
// Empty intersection
intersection.makeInvalid();
EXPECT_FALSE(rect.intersect(Rect(100, 202, 150, 260), &intersection));
EXPECT_TRUE(intersection.isEmpty());
// Partial intersection
const Rect other(30, 40, 70, 80);
intersection.makeInvalid();
EXPECT_TRUE(rect.intersect(other, &intersection));
EXPECT_EQ(Rect(30, 40, 50, 60), intersection);
// Intersetion is commutative
intersection.makeInvalid();
EXPECT_TRUE(other.intersect(rect, &intersection));
EXPECT_EQ(Rect(30, 40, 50, 60), intersection);
}
TEST(RectTest, reduce) {
const Rect rect(10, 20, 50, 60);
// Reduce with self is empty
EXPECT_TRUE(rect.reduce(rect).isEmpty());
// Reduce with rect entirely inside is a noop
const Rect insideRect(11, 21, 45, 55);
EXPECT_EQ(rect, rect.reduce(insideRect));
// Reduce with rect entirely outside is empty
EXPECT_TRUE(insideRect.reduce(rect).isEmpty());
// Reduce with rect on the right
EXPECT_EQ(Rect(10, 20, 20, 60), rect.reduce(Rect(20, 0, 60, 70)));
// Reduce with rect on the left
EXPECT_EQ(Rect(40, 20, 50, 60), rect.reduce(Rect(0, 0, 40, 70)));
// Reduce with rect at the top
EXPECT_EQ(Rect(10, 40, 50, 60), rect.reduce(Rect(0, 0, 70, 40)));
// Reduce with rect at the bottom
EXPECT_EQ(Rect(10, 20, 50, 40), rect.reduce(Rect(0, 40, 70, 70)));
}
TEST(RectTest, transform) {
const int32_t width = 100, height = 200;
const Rect rect(1, 1, 2, 3);
EXPECT_EQ(Rect(98, 1, 99, 3), rect.transform(HAL_TRANSFORM_FLIP_H, width, height));
EXPECT_EQ(Rect(1, 197, 2, 199), rect.transform(HAL_TRANSFORM_FLIP_V, width, height));
EXPECT_EQ(Rect(197, 1, 199, 2), rect.transform(HAL_TRANSFORM_ROT_90, width, height));
EXPECT_EQ(Rect(98, 197, 99, 199), rect.transform(HAL_TRANSFORM_ROT_180, width, height));
EXPECT_EQ(Rect(1, 98, 3, 99), rect.transform(HAL_TRANSFORM_ROT_270, width, height));
}
TEST(RectTest, toFloatRect) {
const Rect rect(10, 20, 50, 60);
const FloatRect floatRect = rect.toFloatRect();
EXPECT_EQ(FloatRect(10.f, 20.f, 50.f, 60.f), floatRect);
}
TEST(RectTest, RectHash) {
const std::vector<Rect> rects = {
Rect(10, 20, 50, 60), Rect(11, 20, 50, 60), Rect(11, 21, 50, 60),
Rect(11, 21, 51, 60), Rect(11, 21, 51, 61),
};
for (const auto& a : rects) {
for (const auto& b : rects) {
const bool hashEq = std::hash<Rect>{}(a) == std::hash<Rect>{}(b);
EXPECT_EQ(a == b, hashEq);
}
}
}
TEST(RectTest, FloatRectHash) {
const std::vector<FloatRect> floatRects = {
Rect(10, 20, 50, 60).toFloatRect(), Rect(11, 20, 50, 60).toFloatRect(),
Rect(11, 21, 50, 60).toFloatRect(), Rect(11, 21, 51, 60).toFloatRect(),
Rect(11, 21, 51, 61).toFloatRect(),
};
for (const auto& a : floatRects) {
for (const auto& b : floatRects) {
const bool hashEq = std::hash<FloatRect>{}(a) == std::hash<FloatRect>{}(b);
EXPECT_EQ(a == b, hashEq);
}
}
}
} // namespace android::ui