tawasuyu/taffy

1#[test]
2fn measure_width_overrides_measure() {
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_with_measure(
9            taffy::style::Style {
10                size: taffy::geometry::Size { width: taffy::style::Dimension::Points(50f32), height: auto() },
11                ..Default::default()
12            },
13            taffy::node::MeasureFunc::Raw(|known_dimensions, available_space| {
14                const TEXT: &str = "HHHHHHHHHH";
15                super::measure_standard_text(known_dimensions, available_space, TEXT, super::WritingMode::Horizontal)
16            }),
17        )
18        .unwrap();
19    let node = taffy.new_with_children(taffy::style::Style { ..Default::default() }, &[node0]).unwrap();
20    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
21    println!("\nComputed tree:");
22    taffy::debug::print_tree(&taffy, node);
23    println!();
24    let Layout { size, location, .. } = taffy.layout(node).unwrap();
25    assert_eq!(size.width, 50f32, "width of node {:?}. Expected {}. Actual {}", node.data(), 50f32, size.width);
26    assert_eq!(size.height, 10f32, "height of node {:?}. Expected {}. Actual {}", node.data(), 10f32, size.height);
27    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.x);
28    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.y);
29    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
30    assert_eq!(size.width, 50f32, "width of node {:?}. Expected {}. Actual {}", node0.data(), 50f32, size.width);
31    assert_eq!(size.height, 10f32, "height of node {:?}. Expected {}. Actual {}", node0.data(), 10f32, size.height);
32    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.x);
33    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.y);
34}