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7eb4f3da37
The existing `::unite_horizontally()` and `::unite_vertically()` tests did not properly test the edge cases where left/top in the Rect were updated, so they get re-arranged a bit.
97 lines
2.5 KiB
C++
97 lines
2.5 KiB
C++
/*
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* Copyright (c) 2023, Jelle Raaijmakers <jelle@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibGfx/Rect.h>
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#include <LibTest/TestCase.h>
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TEST_CASE(int_rect_right_and_bottom)
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{
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Gfx::IntRect rect = { 2, 3, 4, 5 };
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EXPECT_EQ(rect.right(), 6);
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EXPECT_EQ(rect.bottom(), 8);
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}
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TEST_CASE(float_rect_right_and_bottom)
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{
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Gfx::FloatRect rect = { 1.f, 2.f, 3.5f, 4.5f };
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EXPECT_APPROXIMATE(rect.right(), 4.5f);
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EXPECT_APPROXIMATE(rect.bottom(), 6.5f);
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}
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TEST_CASE(rect_contains_vertically)
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{
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Gfx::FloatRect rect = { 0.f, 0.f, 100.f, 100.f };
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EXPECT(rect.contains_vertically(99.f));
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EXPECT(!rect.contains_vertically(100.f));
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}
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TEST_CASE(rect_shatter)
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{
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Gfx::IntRect glass_plate = { 0, 0, 100, 100 };
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Gfx::IntRect hammer = { 30, 40, 40, 10 };
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auto shards = glass_plate.shatter(hammer);
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EXPECT(!shards.is_empty());
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int total_shard_area = 0;
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for (auto shard : shards) {
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EXPECT(glass_plate.contains(shard));
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EXPECT(!hammer.intersects(shard));
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total_shard_area += shard.size().area();
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}
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EXPECT_EQ(glass_plate.size().area() - hammer.size().area(), total_shard_area);
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}
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TEST_CASE(rect_closest_to)
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{
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Gfx::IntRect const screen_rect = { 0, 0, 960, 540 };
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Gfx::Point<int> p = { 460, 592 }; // point is below the rect
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Gfx::Point<int> closest = screen_rect.closest_to(p);
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EXPECT_EQ(screen_rect.side(closest), Gfx::IntRect::Side::Bottom);
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p = { 960, 0 }; // point exactly on top right corner
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closest = screen_rect.closest_to(p);
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EXPECT_EQ(screen_rect.side(closest), Gfx::IntRect::Side::Top);
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}
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TEST_CASE(rect_unite)
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{
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Gfx::IntRect rect_a { 10, 10, 100, 100 };
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Gfx::IntRect rect_b { 50, 50, 60, 70 };
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rect_a.unite(rect_b);
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EXPECT_EQ(rect_a.left(), 10);
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EXPECT_EQ(rect_a.right(), 110);
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EXPECT_EQ(rect_a.top(), 10);
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EXPECT_EQ(rect_a.bottom(), 120);
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}
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TEST_CASE(rect_unite_horizontally)
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{
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Gfx::IntRect rect_a { 10, 10, 1000, 100 };
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Gfx::IntRect rect_b { 0, 0, 100, 1000 };
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rect_a.unite_horizontally(rect_b);
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EXPECT_EQ(rect_a.left(), 0);
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EXPECT_EQ(rect_a.right(), 1010);
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EXPECT_EQ(rect_a.top(), 10);
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EXPECT_EQ(rect_a.bottom(), 110);
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}
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TEST_CASE(rect_unite_vertically)
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{
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Gfx::IntRect rect_a { 10, 10, 1000, 1000 };
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Gfx::IntRect rect_b { 0, 0, 100, 100 };
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rect_a.unite_vertically(rect_b);
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EXPECT_EQ(rect_a.top(), 0);
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EXPECT_EQ(rect_a.bottom(), 1010);
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EXPECT_EQ(rect_a.left(), 10);
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EXPECT_EQ(rect_a.right(), 1010);
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}
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