tawasuyu/taffy

1#[test]
2fn container_with_unsized_child() {
3    #[allow(unused_imports)]
4    use taffy::{prelude::*, tree::Layout, TaffyTree};
5    let mut taffy: TaffyTree<crate::TextMeasure> = TaffyTree::new();
6    let node0 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
7    let node = taffy
8        .new_with_children(
9            taffy::style::Style {
10                size: taffy::geometry::Size {
11                    width: taffy::style::Dimension::Length(100f32),
12                    height: taffy::style::Dimension::Length(100f32),
13                },
14                ..Default::default()
15            },
16            &[node0],
17        )
18        .unwrap();
19    taffy.compute_layout_with_measure(node, taffy::geometry::Size::MAX_CONTENT, crate::test_measure_function).unwrap();
20    println!("\nComputed tree:");
21    taffy.print_tree(node);
22    println!();
23    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
24    let layout @ Layout { size, location, .. } = taffy.layout(node).unwrap();
25    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node, 100f32, size.width);
26    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node, 100f32, size.height);
27    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node, 0f32, location.x);
28    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node, 0f32, location.y);
29    #[cfg(feature = "content_size")]
30    assert_eq!(
31        layout.scroll_width(),
32        0f32,
33        "scroll_width of node {:?}. Expected {}. Actual {}",
34        node,
35        0f32,
36        layout.scroll_width()
37    );
38    #[cfg(feature = "content_size")]
39    assert_eq!(
40        layout.scroll_height(),
41        0f32,
42        "scroll_height of node {:?}. Expected {}. Actual {}",
43        node,
44        0f32,
45        layout.scroll_height()
46    );
47    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
48    let layout @ Layout { size, location, .. } = taffy.layout(node0).unwrap();
49    assert_eq!(size.width, 0f32, "width of node {:?}. Expected {}. Actual {}", node0, 0f32, size.width);
50    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node0, 100f32, size.height);
51    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0, 0f32, location.x);
52    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0, 0f32, location.y);
53    #[cfg(feature = "content_size")]
54    assert_eq!(
55        layout.scroll_width(),
56        0f32,
57        "scroll_width of node {:?}. Expected {}. Actual {}",
58        node0,
59        0f32,
60        layout.scroll_width()
61    );
62    #[cfg(feature = "content_size")]
63    assert_eq!(
64        layout.scroll_height(),
65        0f32,
66        "scroll_height of node {:?}. Expected {}. Actual {}",
67        node0,
68        0f32,
69        layout.scroll_height()
70    );
71}