tawasuyu/taffy

1#[test]
2fn aspect_ratio_flex_row_fill_width_flex() {
3    #[allow(unused_imports)]
4    use taffy::{prelude::*, tree::Layout, TaffyTree};
5    let mut taffy: TaffyTree<crate::TextMeasure> = TaffyTree::new();
6    let node0 = taffy
7        .new_leaf(taffy::style::Style {
8            size: taffy::geometry::Size { width: auto(), height: taffy::style::Dimension::Length(50f32) },
9            aspect_ratio: Some(2f32),
10            ..Default::default()
11        })
12        .unwrap();
13    let node = taffy
14        .new_with_children(
15            taffy::style::Style {
16                display: taffy::style::Display::Grid,
17                align_items: Some(taffy::style::AlignItems::Start),
18                size: taffy::geometry::Size {
19                    width: taffy::style::Dimension::Length(100f32),
20                    height: taffy::style::Dimension::Length(100f32),
21                },
22                ..Default::default()
23            },
24            &[node0],
25        )
26        .unwrap();
27    taffy.compute_layout_with_measure(node, taffy::geometry::Size::MAX_CONTENT, crate::test_measure_function).unwrap();
28    println!("\nComputed tree:");
29    taffy.print_tree(node);
30    println!();
31    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
32    let layout @ Layout { size, location, .. } = taffy.layout(node).unwrap();
33    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node, 100f32, size.width);
34    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node, 100f32, size.height);
35    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node, 0f32, location.x);
36    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node, 0f32, location.y);
37    #[cfg(feature = "content_size")]
38    assert_eq!(
39        layout.scroll_width(),
40        0f32,
41        "scroll_width of node {:?}. Expected {}. Actual {}",
42        node,
43        0f32,
44        layout.scroll_width()
45    );
46    #[cfg(feature = "content_size")]
47    assert_eq!(
48        layout.scroll_height(),
49        0f32,
50        "scroll_height of node {:?}. Expected {}. Actual {}",
51        node,
52        0f32,
53        layout.scroll_height()
54    );
55    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
56    let layout @ Layout { size, location, .. } = taffy.layout(node0).unwrap();
57    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node0, 100f32, size.width);
58    assert_eq!(size.height, 50f32, "height of node {:?}. Expected {}. Actual {}", node0, 50f32, size.height);
59    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0, 0f32, location.x);
60    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0, 0f32, location.y);
61    #[cfg(feature = "content_size")]
62    assert_eq!(
63        layout.scroll_width(),
64        0f32,
65        "scroll_width of node {:?}. Expected {}. Actual {}",
66        node0,
67        0f32,
68        layout.scroll_width()
69    );
70    #[cfg(feature = "content_size")]
71    assert_eq!(
72        layout.scroll_height(),
73        0f32,
74        "scroll_height of node {:?}. Expected {}. Actual {}",
75        node0,
76        0f32,
77        layout.scroll_height()
78    );
79}