tawasuyu/taffy

1#[test]
2fn align_content_stretch_row_with_flex() {
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: taffy::style::Dimension::Length(50f32), height: auto() },
9            ..Default::default()
10        })
11        .unwrap();
12    let node1 = taffy
13        .new_leaf(taffy::style::Style {
14            flex_grow: 1f32,
15            flex_shrink: 1f32,
16            flex_basis: taffy::style::Dimension::Percent(0f32),
17            size: taffy::geometry::Size { width: taffy::style::Dimension::Length(50f32), height: auto() },
18            ..Default::default()
19        })
20        .unwrap();
21    let node2 = taffy
22        .new_leaf(taffy::style::Style {
23            size: taffy::geometry::Size { width: taffy::style::Dimension::Length(50f32), height: auto() },
24            ..Default::default()
25        })
26        .unwrap();
27    let node3 = taffy
28        .new_leaf(taffy::style::Style {
29            flex_grow: 1f32,
30            flex_shrink: 1f32,
31            flex_basis: taffy::style::Dimension::Percent(0f32),
32            size: taffy::geometry::Size { width: taffy::style::Dimension::Length(50f32), height: auto() },
33            ..Default::default()
34        })
35        .unwrap();
36    let node4 = taffy
37        .new_leaf(taffy::style::Style {
38            size: taffy::geometry::Size { width: taffy::style::Dimension::Length(50f32), height: auto() },
39            ..Default::default()
40        })
41        .unwrap();
42    let node = taffy
43        .new_with_children(
44            taffy::style::Style {
45                flex_wrap: taffy::style::FlexWrap::Wrap,
46                align_content: Some(taffy::style::AlignContent::Stretch),
47                size: taffy::geometry::Size {
48                    width: taffy::style::Dimension::Length(150f32),
49                    height: taffy::style::Dimension::Length(100f32),
50                },
51                ..Default::default()
52            },
53            &[node0, node1, node2, node3, node4],
54        )
55        .unwrap();
56    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
57    println!("\nComputed tree:");
58    taffy::util::print_tree(&taffy, node);
59    println!();
60    let Layout { size, location, .. } = taffy.layout(node).unwrap();
61    assert_eq!(size.width, 150f32, "width of node {:?}. Expected {}. Actual {}", node, 150f32, size.width);
62    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node, 100f32, size.height);
63    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node, 0f32, location.x);
64    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node, 0f32, location.y);
65    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
66    assert_eq!(size.width, 50f32, "width of node {:?}. Expected {}. Actual {}", node0, 50f32, size.width);
67    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node0, 100f32, size.height);
68    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0, 0f32, location.x);
69    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0, 0f32, location.y);
70    let Layout { size, location, .. } = taffy.layout(node1).unwrap();
71    assert_eq!(size.width, 0f32, "width of node {:?}. Expected {}. Actual {}", node1, 0f32, size.width);
72    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node1, 100f32, size.height);
73    assert_eq!(location.x, 50f32, "x of node {:?}. Expected {}. Actual {}", node1, 50f32, location.x);
74    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node1, 0f32, location.y);
75    let Layout { size, location, .. } = taffy.layout(node2).unwrap();
76    assert_eq!(size.width, 50f32, "width of node {:?}. Expected {}. Actual {}", node2, 50f32, size.width);
77    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node2, 100f32, size.height);
78    assert_eq!(location.x, 50f32, "x of node {:?}. Expected {}. Actual {}", node2, 50f32, location.x);
79    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node2, 0f32, location.y);
80    let Layout { size, location, .. } = taffy.layout(node3).unwrap();
81    assert_eq!(size.width, 0f32, "width of node {:?}. Expected {}. Actual {}", node3, 0f32, size.width);
82    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node3, 100f32, size.height);
83    assert_eq!(location.x, 100f32, "x of node {:?}. Expected {}. Actual {}", node3, 100f32, location.x);
84    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node3, 0f32, location.y);
85    let Layout { size, location, .. } = taffy.layout(node4).unwrap();
86    assert_eq!(size.width, 50f32, "width of node {:?}. Expected {}. Actual {}", node4, 50f32, size.width);
87    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node4, 100f32, size.height);
88    assert_eq!(location.x, 100f32, "x of node {:?}. Expected {}. Actual {}", node4, 100f32, location.x);
89    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node4, 0f32, location.y);
90}