tawasuyu/taffy

1#[test]
2fn align_flex_start_with_shrinking_children_with_stretch() {
3    use slotmap::Key;
4    #[allow(unused_imports)]
5    use taffy::{layout::Layout, prelude::*};
6    let mut taffy = taffy::Taffy::new();
7    let node000 =
8        taffy.new_leaf(taffy::style::Style { flex_grow: 1f32, flex_shrink: 1f32, ..Default::default() }).unwrap();
9    let node00 = taffy
10        .new_with_children(
11            taffy::style::Style {
12                align_items: Some(taffy::style::AlignItems::Stretch),
13                flex_grow: 1f32,
14                flex_shrink: 1f32,
15                ..Default::default()
16            },
17            &[node000],
18        )
19        .unwrap();
20    let node0 = taffy
21        .new_with_children(
22            taffy::style::Style { align_items: Some(taffy::style::AlignItems::FlexStart), ..Default::default() },
23            &[node00],
24        )
25        .unwrap();
26    let node = taffy
27        .new_with_children(
28            taffy::style::Style {
29                size: taffy::geometry::Size {
30                    width: taffy::style::Dimension::Points(500f32),
31                    height: taffy::style::Dimension::Points(500f32),
32                },
33                ..Default::default()
34            },
35            &[node0],
36        )
37        .unwrap();
38    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
39    println!("\nComputed tree:");
40    taffy::debug::print_tree(&taffy, node);
41    println!();
42    let Layout { size, location, .. } = taffy.layout(node).unwrap();
43    assert_eq!(size.width, 500f32, "width of node {:?}. Expected {}. Actual {}", node.data(), 500f32, size.width);
44    assert_eq!(size.height, 500f32, "height of node {:?}. Expected {}. Actual {}", node.data(), 500f32, size.height);
45    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.x);
46    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.y);
47    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
48    assert_eq!(size.width, 0f32, "width of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, size.width);
49    assert_eq!(size.height, 500f32, "height of node {:?}. Expected {}. Actual {}", node0.data(), 500f32, size.height);
50    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.x);
51    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.y);
52    let Layout { size, location, .. } = taffy.layout(node00).unwrap();
53    assert_eq!(size.width, 0f32, "width of node {:?}. Expected {}. Actual {}", node00.data(), 0f32, size.width);
54    assert_eq!(size.height, 0f32, "height of node {:?}. Expected {}. Actual {}", node00.data(), 0f32, size.height);
55    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node00.data(), 0f32, location.x);
56    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node00.data(), 0f32, location.y);
57    let Layout { size, location, .. } = taffy.layout(node000).unwrap();
58    assert_eq!(size.width, 0f32, "width of node {:?}. Expected {}. Actual {}", node000.data(), 0f32, size.width);
59    assert_eq!(size.height, 0f32, "height of node {:?}. Expected {}. Actual {}", node000.data(), 0f32, size.height);
60    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node000.data(), 0f32, location.x);
61    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node000.data(), 0f32, location.y);
62}