tawasuyu/taffy

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