tawasuyu/taffy

1#[test]
2fn justify_content_row_max_width_and_margin() {
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 {
10                width: taffy::style::Dimension::Points(20f32),
11                height: taffy::style::Dimension::Points(20f32),
12            },
13            margin: taffy::geometry::Rect {
14                left: taffy::style::LengthPercentageAuto::Points(100f32),
15                right: zero(),
16                top: zero(),
17                bottom: zero(),
18            },
19            ..Default::default()
20        })
21        .unwrap();
22    let node = taffy
23        .new_with_children(
24            taffy::style::Style {
25                justify_content: Some(taffy::style::JustifyContent::Center),
26                size: taffy::geometry::Size { width: taffy::style::Dimension::Points(100f32), height: auto() },
27                max_size: taffy::geometry::Size { width: taffy::style::Dimension::Points(80f32), height: auto() },
28                ..Default::default()
29            },
30            &[node0],
31        )
32        .unwrap();
33    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
34    println!("\nComputed tree:");
35    taffy::debug::print_tree(&taffy, node);
36    println!();
37    let Layout { size, location, .. } = taffy.layout(node).unwrap();
38    assert_eq!(size.width, 80f32, "width of node {:?}. Expected {}. Actual {}", node.data(), 80f32, size.width);
39    assert_eq!(size.height, 20f32, "height of node {:?}. Expected {}. Actual {}", node.data(), 20f32, size.height);
40    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.x);
41    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.y);
42    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
43    assert_eq!(size.width, 0f32, "width of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, size.width);
44    assert_eq!(size.height, 20f32, "height of node {:?}. Expected {}. Actual {}", node0.data(), 20f32, size.height);
45    assert_eq!(location.x, 90f32, "x of node {:?}. Expected {}. Actual {}", node0.data(), 90f32, location.x);
46    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.y);
47}