tawasuyu/taffy

1#[test]
2fn margin_auto_top_stretching_child() {
3    let mut taffy = taffy::Taffy::new();
4    let node0 = taffy
5        .new_with_children(
6            taffy::style::Style {
7                flex_grow: 1f32,
8                flex_shrink: 1f32,
9                flex_basis: taffy::style::Dimension::Percent(0f32),
10                margin: taffy::geometry::Rect { top: taffy::style::Dimension::Auto, ..Default::default() },
11                ..Default::default()
12            },
13            &[],
14        )
15        .unwrap();
16    let node1 = taffy
17        .new_with_children(
18            taffy::style::Style {
19                size: taffy::geometry::Size {
20                    width: taffy::style::Dimension::Points(50f32),
21                    height: taffy::style::Dimension::Points(50f32),
22                    ..Default::default()
23                },
24                ..Default::default()
25            },
26            &[],
27        )
28        .unwrap();
29    let node = taffy
30        .new_with_children(
31            taffy::style::Style {
32                align_items: taffy::style::AlignItems::Center,
33                size: taffy::geometry::Size {
34                    width: taffy::style::Dimension::Points(200f32),
35                    height: taffy::style::Dimension::Points(200f32),
36                    ..Default::default()
37                },
38                ..Default::default()
39            },
40            &[node0, node1],
41        )
42        .unwrap();
43    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
44    assert_eq!(taffy.layout(node).unwrap().size.width, 200f32);
45    assert_eq!(taffy.layout(node).unwrap().size.height, 200f32);
46    assert_eq!(taffy.layout(node).unwrap().location.x, 0f32);
47    assert_eq!(taffy.layout(node).unwrap().location.y, 0f32);
48    assert_eq!(taffy.layout(node0).unwrap().size.width, 150f32);
49    assert_eq!(taffy.layout(node0).unwrap().size.height, 0f32);
50    assert_eq!(taffy.layout(node0).unwrap().location.x, 0f32);
51    assert_eq!(taffy.layout(node0).unwrap().location.y, 200f32);
52    assert_eq!(taffy.layout(node1).unwrap().size.width, 50f32);
53    assert_eq!(taffy.layout(node1).unwrap().size.height, 50f32);
54    assert_eq!(taffy.layout(node1).unwrap().location.x, 150f32);
55    assert_eq!(taffy.layout(node1).unwrap().location.y, 75f32);
56}