tawasuyu/taffy

1#[test]
2fn align_flex_start_with_shrinking_children() {
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(taffy::style::Style { flex_grow: 1f32, flex_shrink: 1f32, ..Default::default() }, &[node000])
11        .unwrap();
12    let node0 = taffy
13        .new_with_children(
14            taffy::style::Style { align_items: Some(taffy::style::AlignItems::FlexStart), ..Default::default() },
15            &[node00],
16        )
17        .unwrap();
18    let node = taffy
19        .new_with_children(
20            taffy::style::Style {
21                size: taffy::geometry::Size {
22                    width: taffy::style::Dimension::Points(500f32),
23                    height: taffy::style::Dimension::Points(500f32),
24                },
25                ..Default::default()
26            },
27            &[node0],
28        )
29        .unwrap();
30    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
31    println!("\nComputed tree:");
32    taffy::debug::print_tree(&taffy, node);
33    println!();
34    let Layout { size, location, .. } = taffy.layout(node).unwrap();
35    assert_eq!(size.width, 500f32, "width of node {:?}. Expected {}. Actual {}", node.data(), 500f32, size.width);
36    assert_eq!(size.height, 500f32, "height of node {:?}. Expected {}. Actual {}", node.data(), 500f32, size.height);
37    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.x);
38    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.y);
39    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
40    assert_eq!(size.width, 0f32, "width of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, size.width);
41    assert_eq!(size.height, 500f32, "height of node {:?}. Expected {}. Actual {}", node0.data(), 500f32, size.height);
42    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.x);
43    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.y);
44    let Layout { size, location, .. } = taffy.layout(node00).unwrap();
45    assert_eq!(size.width, 0f32, "width of node {:?}. Expected {}. Actual {}", node00.data(), 0f32, size.width);
46    assert_eq!(size.height, 0f32, "height of node {:?}. Expected {}. Actual {}", node00.data(), 0f32, size.height);
47    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node00.data(), 0f32, location.x);
48    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node00.data(), 0f32, location.y);
49    let Layout { size, location, .. } = taffy.layout(node000).unwrap();
50    assert_eq!(size.width, 0f32, "width of node {:?}. Expected {}. Actual {}", node000.data(), 0f32, size.width);
51    assert_eq!(size.height, 0f32, "height of node {:?}. Expected {}. Actual {}", node000.data(), 0f32, size.height);
52    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node000.data(), 0f32, location.x);
53    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node000.data(), 0f32, location.y);
54}