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LibGfx: Verify Rect and Quad are consistent in boundary point inclusions

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Aaron Van Doren 2024-08-07 17:32:12 -07:00 committed by Jelle Raaijmakers
parent 5c4e162ba9
commit 7824721107
1 changed files with 30 additions and 0 deletions
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30
Tests/LibGfx/TestQuad.cpp
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@ -73,3 +73,33 @@ TEST_CASE(quad_contains)
Gfx::Point<u8> out_bounds_point { 7, 12 };
EXPECT(quad.contains(out_bounds_point) == false);
}
TEST_CASE(quad_contains_boundary_points)
{
Gfx::Point<int> p1 { 0, 0 };
Gfx::Point<int> p2 { 2, 0 };
Gfx::Point<int> p3 { 2, 2 };
Gfx::Point<int> p4 { 0, 2 };
Gfx::Quad<int> square_quad { p1, p2, p3, p4 };
Gfx::Rect<int> square_quad_as_rect = square_quad.bounding_rect();
auto const& point_at_top_left_vertex = p1;
Gfx::Point<int> point_on_top_edge { 1, 0 };
EXPECT_EQ(square_quad.contains(point_at_top_left_vertex), square_quad_as_rect.contains(point_at_top_left_vertex));
EXPECT_EQ(square_quad.contains(point_on_top_edge), square_quad_as_rect.contains(point_on_top_edge));
auto const& point_at_top_right_vertex = p2;
Gfx::Point<int> point_on_right_edge { 2, 1 };
EXPECT_EQ(square_quad.contains(point_at_top_right_vertex), square_quad_as_rect.contains(point_at_top_right_vertex));
EXPECT_EQ(square_quad.contains(point_on_right_edge), square_quad_as_rect.contains(point_on_right_edge));
auto const& point_at_bottom_left_vertex = p4;
Gfx::Point<int> point_on_bottom_edge { 1, 2 };
EXPECT_EQ(square_quad.contains(point_at_bottom_left_vertex), square_quad_as_rect.contains(point_at_bottom_left_vertex));
EXPECT_EQ(square_quad.contains(point_on_bottom_edge), square_quad_as_rect.contains(point_on_bottom_edge));
auto const& point_at_bottom_right_vertex = p3;
Gfx::Point<int> point_on_left_edge { 0, 1 };
EXPECT_EQ(square_quad.contains(point_at_bottom_right_vertex), square_quad_as_rect.contains(point_at_bottom_right_vertex));
EXPECT_EQ(square_quad.contains(point_on_left_edge), square_quad_as_rect.contains(point_on_left_edge));
}