tawasuyu/taffy

1#[test]
2fn flex_root_ignored() {
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
8        .new_leaf(taffy::style::Style {
9            flex_grow: 1f32,
10            flex_basis: taffy::style::Dimension::Points(200f32),
11            ..Default::default()
12        })
13        .unwrap();
14    let node1 = taffy
15        .new_leaf(taffy::style::Style {
16            size: taffy::geometry::Size { width: auto(), height: taffy::style::Dimension::Points(100f32) },
17            ..Default::default()
18        })
19        .unwrap();
20    let node = taffy
21        .new_with_children(
22            taffy::style::Style {
23                flex_direction: taffy::style::FlexDirection::Column,
24                size: taffy::geometry::Size { width: taffy::style::Dimension::Points(100f32), height: auto() },
25                min_size: taffy::geometry::Size { width: auto(), height: taffy::style::Dimension::Points(100f32) },
26                max_size: taffy::geometry::Size { width: auto(), height: taffy::style::Dimension::Points(500f32) },
27                ..Default::default()
28            },
29            &[node0, node1],
30        )
31        .unwrap();
32    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
33    println!("\nComputed tree:");
34    taffy::debug::print_tree(&taffy, node);
35    println!();
36    let Layout { size, location, .. } = taffy.layout(node).unwrap();
37    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node.data(), 100f32, size.width);
38    assert_eq!(size.height, 300f32, "height of node {:?}. Expected {}. Actual {}", node.data(), 300f32, size.height);
39    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.x);
40    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.y);
41    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
42    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node0.data(), 100f32, size.width);
43    assert_eq!(size.height, 200f32, "height of node {:?}. Expected {}. Actual {}", node0.data(), 200f32, size.height);
44    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.x);
45    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.y);
46    let Layout { size, location, .. } = taffy.layout(node1).unwrap();
47    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node1.data(), 100f32, size.width);
48    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node1.data(), 100f32, size.height);
49    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node1.data(), 0f32, location.x);
50    assert_eq!(location.y, 200f32, "y of node {:?}. Expected {}. Actual {}", node1.data(), 200f32, location.y);
51}