tawasuyu/taffy

1#[test]
2fn grid_placement_auto_negative() {
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(taffy::style::Style {
9            grid_row: taffy::geometry::Line { start: line(1i16), end: taffy::style::GridPlacement::Auto },
10            grid_column: taffy::geometry::Line { start: line(-5i16), end: taffy::style::GridPlacement::Auto },
11            ..Default::default()
12        })
13        .unwrap();
14    let node1 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
15    let node2 = taffy
16        .new_leaf(taffy::style::Style {
17            grid_row: taffy::geometry::Line { start: line(2i16), end: taffy::style::GridPlacement::Auto },
18            ..Default::default()
19        })
20        .unwrap();
21    let node = taffy
22        .new_with_children(
23            taffy::style::Style {
24                display: taffy::style::Display::Grid,
25                grid_template_rows: vec![points(40f32), points(40f32)],
26                grid_template_columns: vec![points(40f32), points(40f32)],
27                size: taffy::geometry::Size {
28                    width: taffy::style::Dimension::Points(120f32),
29                    height: taffy::style::Dimension::Points(120f32),
30                },
31                ..Default::default()
32            },
33            &[node0, node1, node2],
34        )
35        .unwrap();
36    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
37    println!("\nComputed tree:");
38    taffy::debug::print_tree(&taffy, node);
39    println!();
40    let Layout { size, location, .. } = taffy.layout(node).unwrap();
41    assert_eq!(size.width, 120f32, "width of node {:?}. Expected {}. Actual {}", node.data(), 120f32, size.width);
42    assert_eq!(size.height, 120f32, "height of node {:?}. Expected {}. Actual {}", node.data(), 120f32, size.height);
43    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.x);
44    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.y);
45    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
46    assert_eq!(size.width, 20f32, "width of node {:?}. Expected {}. Actual {}", node0.data(), 20f32, size.width);
47    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node0.data(), 40f32, size.height);
48    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.x);
49    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.y);
50    let Layout { size, location, .. } = taffy.layout(node1).unwrap();
51    assert_eq!(size.width, 20f32, "width of node {:?}. Expected {}. Actual {}", node1.data(), 20f32, size.width);
52    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node1.data(), 40f32, size.height);
53    assert_eq!(location.x, 20f32, "x of node {:?}. Expected {}. Actual {}", node1.data(), 20f32, location.x);
54    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node1.data(), 0f32, location.y);
55    let Layout { size, location, .. } = taffy.layout(node2).unwrap();
56    assert_eq!(size.width, 20f32, "width of node {:?}. Expected {}. Actual {}", node2.data(), 20f32, size.width);
57    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node2.data(), 40f32, size.height);
58    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node2.data(), 0f32, location.x);
59    assert_eq!(location.y, 40f32, "y of node {:?}. Expected {}. Actual {}", node2.data(), 40f32, location.y);
60}