tawasuyu/taffy

1#[test]
2fn grid_span_2_max_content_max_content_indefinite() {
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(1i16), end: taffy::style::GridPlacement::Auto },
11            ..Default::default()
12        })
13        .unwrap();
14    let node1 = taffy
15        .new_leaf(taffy::style::Style {
16            grid_row: taffy::geometry::Line { start: line(1i16), end: taffy::style::GridPlacement::Auto },
17            grid_column: taffy::geometry::Line { start: line(2i16), end: taffy::style::GridPlacement::Auto },
18            ..Default::default()
19        })
20        .unwrap();
21    let node2 = taffy
22        .new_leaf_with_measure(
23            taffy::style::Style {
24                grid_row: taffy::geometry::Line { start: line(1i16), end: taffy::style::GridPlacement::Auto },
25                grid_column: taffy::geometry::Line { start: line(1i16), end: taffy::style::GridPlacement::Span(2u16) },
26                ..Default::default()
27            },
28            taffy::node::MeasureFunc::Raw(|known_dimensions, available_space| {
29                const TEXT: &str = "HHHH\u{200b}HHHH";
30                super::measure_standard_text(
31                    known_dimensions,
32                    available_space,
33                    TEXT,
34                    super::WritingMode::Horizontal,
35                    None,
36                )
37            }),
38        )
39        .unwrap();
40    let node = taffy
41        .new_with_children(
42            taffy::style::Style {
43                display: taffy::style::Display::Grid,
44                grid_template_rows: vec![points(40f32)],
45                grid_template_columns: vec![max_content(), max_content()],
46                ..Default::default()
47            },
48            &[node0, node1, node2],
49        )
50        .unwrap();
51    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
52    println!("\nComputed tree:");
53    taffy::debug::print_tree(&taffy, node);
54    println!();
55    let Layout { size, location, .. } = taffy.layout(node).unwrap();
56    assert_eq!(size.width, 80f32, "width of node {:?}. Expected {}. Actual {}", node.data(), 80f32, size.width);
57    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node.data(), 40f32, size.height);
58    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.x);
59    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.y);
60    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
61    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node0.data(), 40f32, size.width);
62    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node0.data(), 40f32, size.height);
63    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.x);
64    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.y);
65    let Layout { size, location, .. } = taffy.layout(node1).unwrap();
66    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node1.data(), 40f32, size.width);
67    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node1.data(), 40f32, size.height);
68    assert_eq!(location.x, 40f32, "x of node {:?}. Expected {}. Actual {}", node1.data(), 40f32, location.x);
69    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node1.data(), 0f32, location.y);
70    let Layout { size, location, .. } = taffy.layout(node2).unwrap();
71    assert_eq!(size.width, 80f32, "width of node {:?}. Expected {}. Actual {}", node2.data(), 80f32, size.width);
72    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node2.data(), 40f32, size.height);
73    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node2.data(), 0f32, location.x);
74    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node2.data(), 0f32, location.y);
75}