tawasuyu/taffy

1#[test]
2fn flex_direction_column_reverse_no_height() {
3    #[allow(unused_imports)]
4    use taffy::{prelude::*, tree::Layout};
5    let mut taffy = taffy::Taffy::new();
6    let node0 = taffy
7        .new_leaf(taffy::style::Style {
8            size: taffy::geometry::Size { width: auto(), height: taffy::style::Dimension::Length(10f32) },
9            ..Default::default()
10        })
11        .unwrap();
12    let node1 = taffy
13        .new_leaf(taffy::style::Style {
14            size: taffy::geometry::Size { width: auto(), height: taffy::style::Dimension::Length(10f32) },
15            ..Default::default()
16        })
17        .unwrap();
18    let node2 = taffy
19        .new_leaf(taffy::style::Style {
20            size: taffy::geometry::Size { width: auto(), height: taffy::style::Dimension::Length(10f32) },
21            ..Default::default()
22        })
23        .unwrap();
24    let node = taffy
25        .new_with_children(
26            taffy::style::Style {
27                flex_direction: taffy::style::FlexDirection::ColumnReverse,
28                size: taffy::geometry::Size { width: taffy::style::Dimension::Length(100f32), height: auto() },
29                ..Default::default()
30            },
31            &[node0, node1, node2],
32        )
33        .unwrap();
34    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
35    println!("\nComputed tree:");
36    taffy::util::print_tree(&taffy, node);
37    println!();
38    let Layout { size, location, .. } = taffy.layout(node).unwrap();
39    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node, 100f32, size.width);
40    assert_eq!(size.height, 30f32, "height of node {:?}. Expected {}. Actual {}", node, 30f32, size.height);
41    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node, 0f32, location.x);
42    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node, 0f32, location.y);
43    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
44    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node0, 100f32, size.width);
45    assert_eq!(size.height, 10f32, "height of node {:?}. Expected {}. Actual {}", node0, 10f32, size.height);
46    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0, 0f32, location.x);
47    assert_eq!(location.y, 20f32, "y of node {:?}. Expected {}. Actual {}", node0, 20f32, location.y);
48    let Layout { size, location, .. } = taffy.layout(node1).unwrap();
49    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node1, 100f32, size.width);
50    assert_eq!(size.height, 10f32, "height of node {:?}. Expected {}. Actual {}", node1, 10f32, size.height);
51    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node1, 0f32, location.x);
52    assert_eq!(location.y, 10f32, "y of node {:?}. Expected {}. Actual {}", node1, 10f32, location.y);
53    let Layout { size, location, .. } = taffy.layout(node2).unwrap();
54    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node2, 100f32, size.width);
55    assert_eq!(size.height, 10f32, "height of node {:?}. Expected {}. Actual {}", node2, 10f32, size.height);
56    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node2, 0f32, location.x);
57    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node2, 0f32, location.y);
58}