tawasuyu/taffy

1#[test]
2fn absolute_layout_align_items_and_justify_content_center() {
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            position: taffy::style::Position::Absolute,
10            size: taffy::geometry::Size {
11                width: taffy::style::Dimension::Points(60f32),
12                height: taffy::style::Dimension::Points(40f32),
13            },
14            ..Default::default()
15        })
16        .unwrap();
17    let node = taffy
18        .new_with_children(
19            taffy::style::Style {
20                align_items: Some(taffy::style::AlignItems::Center),
21                justify_content: Some(taffy::style::JustifyContent::Center),
22                size: taffy::geometry::Size {
23                    width: taffy::style::Dimension::Points(110f32),
24                    height: taffy::style::Dimension::Points(100f32),
25                },
26                ..Default::default()
27            },
28            &[node0],
29        )
30        .unwrap();
31    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
32    println!("\nComputed tree:");
33    taffy::debug::print_tree(&taffy, node);
34    println!();
35    let Layout { size, location, .. } = taffy.layout(node).unwrap();
36    assert_eq!(size.width, 110f32, "width of node {:?}. Expected {}. Actual {}", node.data(), 110f32, size.width);
37    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node.data(), 100f32, size.height);
38    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.x);
39    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.y);
40    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
41    assert_eq!(size.width, 60f32, "width of node {:?}. Expected {}. Actual {}", node0.data(), 60f32, size.width);
42    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node0.data(), 40f32, size.height);
43    assert_eq!(location.x, 25f32, "x of node {:?}. Expected {}. Actual {}", node0.data(), 25f32, location.x);
44    assert_eq!(location.y, 30f32, "y of node {:?}. Expected {}. Actual {}", node0.data(), 30f32, location.y);
45}