tawasuyu/taffy

1#[test]
2fn flex_direction_column_no_height() {
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            size: taffy::geometry::Size { width: auto(), height: taffy::style::Dimension::Points(10f32) },
10            ..Default::default()
11        })
12        .unwrap();
13    let node1 = taffy
14        .new_leaf(taffy::style::Style {
15            size: taffy::geometry::Size { width: auto(), height: taffy::style::Dimension::Points(10f32) },
16            ..Default::default()
17        })
18        .unwrap();
19    let node2 = taffy
20        .new_leaf(taffy::style::Style {
21            size: taffy::geometry::Size { width: auto(), height: taffy::style::Dimension::Points(10f32) },
22            ..Default::default()
23        })
24        .unwrap();
25    let node = taffy
26        .new_with_children(
27            taffy::style::Style {
28                flex_direction: taffy::style::FlexDirection::Column,
29                size: taffy::geometry::Size { width: taffy::style::Dimension::Points(100f32), height: auto() },
30                ..Default::default()
31            },
32            &[node0, node1, node2],
33        )
34        .unwrap();
35    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
36    println!("\nComputed tree:");
37    taffy::debug::print_tree(&taffy, node);
38    println!();
39    let Layout { size, location, .. } = taffy.layout(node).unwrap();
40    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node.data(), 100f32, size.width);
41    assert_eq!(size.height, 30f32, "height of node {:?}. Expected {}. Actual {}", node.data(), 30f32, size.height);
42    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.x);
43    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.y);
44    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
45    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node0.data(), 100f32, size.width);
46    assert_eq!(size.height, 10f32, "height of node {:?}. Expected {}. Actual {}", node0.data(), 10f32, size.height);
47    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.x);
48    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.y);
49    let Layout { size, location, .. } = taffy.layout(node1).unwrap();
50    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node1.data(), 100f32, size.width);
51    assert_eq!(size.height, 10f32, "height of node {:?}. Expected {}. Actual {}", node1.data(), 10f32, size.height);
52    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node1.data(), 0f32, location.x);
53    assert_eq!(location.y, 10f32, "y of node {:?}. Expected {}. Actual {}", node1.data(), 10f32, location.y);
54    let Layout { size, location, .. } = taffy.layout(node2).unwrap();
55    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node2.data(), 100f32, size.width);
56    assert_eq!(size.height, 10f32, "height of node {:?}. Expected {}. Actual {}", node2.data(), 10f32, size.height);
57    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node2.data(), 0f32, location.x);
58    assert_eq!(location.y, 20f32, "y of node {:?}. Expected {}. Actual {}", node2.data(), 20f32, location.y);
59}