tawasuyu/taffy

1#[test]
2fn grid_min_content_flex_single_item_margin_auto() {
3    use slotmap::Key;
4    #[allow(unused_imports)]
5    use taffy::{layout::Layout, prelude::*};
6    let mut taffy = taffy::Taffy::new();
7    let node0 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
8    let node1 = taffy
9        .new_leaf(taffy::style::Style {
10            min_size: taffy::geometry::Size { width: taffy::style::Dimension::Points(10f32), height: auto() },
11            margin: taffy::geometry::Rect {
12                left: taffy::style::LengthPercentageAuto::Auto,
13                right: taffy::style::LengthPercentageAuto::Auto,
14                top: taffy::style::LengthPercentageAuto::Auto,
15                bottom: taffy::style::LengthPercentageAuto::Auto,
16            },
17            ..Default::default()
18        })
19        .unwrap();
20    let node2 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
21    let node3 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
22    let node4 = taffy
23        .new_leaf_with_measure(
24            taffy::style::Style {
25                grid_column: taffy::geometry::Line {
26                    start: taffy::style::GridPlacement::Span(2u16),
27                    end: taffy::style::GridPlacement::Auto,
28                },
29                margin: taffy::geometry::Rect {
30                    left: taffy::style::LengthPercentageAuto::Auto,
31                    right: taffy::style::LengthPercentageAuto::Auto,
32                    top: taffy::style::LengthPercentageAuto::Auto,
33                    bottom: taffy::style::LengthPercentageAuto::Auto,
34                },
35                ..Default::default()
36            },
37            taffy::node::MeasureFunc::Raw(|known_dimensions, available_space| {
38                const TEXT: &str = "HH\u{200b}HH";
39                super::measure_standard_text(
40                    known_dimensions,
41                    available_space,
42                    TEXT,
43                    super::WritingMode::Horizontal,
44                    None,
45                )
46            }),
47        )
48        .unwrap();
49    let node5 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
50    let node6 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
51    let node7 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
52    let node = taffy
53        .new_with_children(
54            taffy::style::Style {
55                display: taffy::style::Display::Grid,
56                grid_template_rows: vec![points(40f32), points(40f32), points(40f32)],
57                grid_template_columns: vec![points(40f32), min_content(), fr(1f32)],
58                ..Default::default()
59            },
60            &[node0, node1, node2, node3, node4, node5, node6, node7],
61        )
62        .unwrap();
63    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
64    println!("\nComputed tree:");
65    taffy::debug::print_tree(&taffy, node);
66    println!();
67    let Layout { size, location, .. } = taffy.layout(node).unwrap();
68    assert_eq!(size.width, 80f32, "width of node {:?}. Expected {}. Actual {}", node.data(), 80f32, size.width);
69    assert_eq!(size.height, 120f32, "height of node {:?}. Expected {}. Actual {}", node.data(), 120f32, size.height);
70    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.x);
71    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.y);
72    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
73    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node0.data(), 40f32, size.width);
74    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node0.data(), 40f32, size.height);
75    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.x);
76    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.y);
77    let Layout { size, location, .. } = taffy.layout(node1).unwrap();
78    assert_eq!(size.width, 10f32, "width of node {:?}. Expected {}. Actual {}", node1.data(), 10f32, size.width);
79    assert_eq!(size.height, 0f32, "height of node {:?}. Expected {}. Actual {}", node1.data(), 0f32, size.height);
80    assert_eq!(location.x, 40f32, "x of node {:?}. Expected {}. Actual {}", node1.data(), 40f32, location.x);
81    assert_eq!(location.y, 20f32, "y of node {:?}. Expected {}. Actual {}", node1.data(), 20f32, location.y);
82    let Layout { size, location, .. } = taffy.layout(node2).unwrap();
83    assert_eq!(size.width, 30f32, "width of node {:?}. Expected {}. Actual {}", node2.data(), 30f32, size.width);
84    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node2.data(), 40f32, size.height);
85    assert_eq!(location.x, 50f32, "x of node {:?}. Expected {}. Actual {}", node2.data(), 50f32, location.x);
86    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node2.data(), 0f32, location.y);
87    let Layout { size, location, .. } = taffy.layout(node3).unwrap();
88    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node3.data(), 40f32, size.width);
89    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node3.data(), 40f32, size.height);
90    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node3.data(), 0f32, location.x);
91    assert_eq!(location.y, 40f32, "y of node {:?}. Expected {}. Actual {}", node3.data(), 40f32, location.y);
92    let Layout { size, location, .. } = taffy.layout(node4).unwrap();
93    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node4.data(), 40f32, size.width);
94    assert_eq!(size.height, 10f32, "height of node {:?}. Expected {}. Actual {}", node4.data(), 10f32, size.height);
95    assert_eq!(location.x, 40f32, "x of node {:?}. Expected {}. Actual {}", node4.data(), 40f32, location.x);
96    assert_eq!(location.y, 55f32, "y of node {:?}. Expected {}. Actual {}", node4.data(), 55f32, location.y);
97    let Layout { size, location, .. } = taffy.layout(node5).unwrap();
98    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node5.data(), 40f32, size.width);
99    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node5.data(), 40f32, size.height);
100    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node5.data(), 0f32, location.x);
101    assert_eq!(location.y, 80f32, "y of node {:?}. Expected {}. Actual {}", node5.data(), 80f32, location.y);
102    let Layout { size, location, .. } = taffy.layout(node6).unwrap();
103    assert_eq!(size.width, 10f32, "width of node {:?}. Expected {}. Actual {}", node6.data(), 10f32, size.width);
104    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node6.data(), 40f32, size.height);
105    assert_eq!(location.x, 40f32, "x of node {:?}. Expected {}. Actual {}", node6.data(), 40f32, location.x);
106    assert_eq!(location.y, 80f32, "y of node {:?}. Expected {}. Actual {}", node6.data(), 80f32, location.y);
107    let Layout { size, location, .. } = taffy.layout(node7).unwrap();
108    assert_eq!(size.width, 30f32, "width of node {:?}. Expected {}. Actual {}", node7.data(), 30f32, size.width);
109    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node7.data(), 40f32, size.height);
110    assert_eq!(location.x, 50f32, "x of node {:?}. Expected {}. Actual {}", node7.data(), 50f32, location.x);
111    assert_eq!(location.y, 80f32, "y of node {:?}. Expected {}. Actual {}", node7.data(), 80f32, location.y);
112}