1#[test]
2fn flex_basis_overrides_main_size() {
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 flex_grow: 1f32,
10 flex_basis: taffy::style::Dimension::Points(50f32),
11 size: taffy::geometry::Size { width: taffy::style::Dimension::Points(20f32), height: auto() },
12 ..Default::default()
13 })
14 .unwrap();
15 let node1 = taffy
16 .new_leaf(taffy::style::Style {
17 flex_grow: 1f32,
18 size: taffy::geometry::Size { width: taffy::style::Dimension::Points(10f32), height: auto() },
19 ..Default::default()
20 })
21 .unwrap();
22 let node2 = taffy
23 .new_leaf(taffy::style::Style {
24 flex_grow: 1f32,
25 size: taffy::geometry::Size { width: taffy::style::Dimension::Points(10f32), height: auto() },
26 ..Default::default()
27 })
28 .unwrap();
29 let node = taffy
30 .new_with_children(
31 taffy::style::Style {
32 size: taffy::geometry::Size {
33 width: taffy::style::Dimension::Points(100f32),
34 height: taffy::style::Dimension::Points(100f32),
35 },
36 ..Default::default()
37 },
38 &[node0, node1, node2],
39 )
40 .unwrap();
41 taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
42 println!("\nComputed tree:");
43 taffy::debug::print_tree(&taffy, node);
44 println!();
45 let Layout { size, location, .. } = taffy.layout(node).unwrap();
46 assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node.data(), 100f32, size.width);
47 assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node.data(), 100f32, size.height);
48 assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.x);
49 assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.y);
50 let Layout { size, location, .. } = taffy.layout(node0).unwrap();
51 assert_eq!(size.width, 60f32, "width of node {:?}. Expected {}. Actual {}", node0.data(), 60f32, size.width);
52 assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node0.data(), 100f32, size.height);
53 assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.x);
54 assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.y);
55 let Layout { size, location, .. } = taffy.layout(node1).unwrap();
56 assert_eq!(size.width, 20f32, "width of node {:?}. Expected {}. Actual {}", node1.data(), 20f32, size.width);
57 assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node1.data(), 100f32, size.height);
58 assert_eq!(location.x, 60f32, "x of node {:?}. Expected {}. Actual {}", node1.data(), 60f32, location.x);
59 assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node1.data(), 0f32, location.y);
60 let Layout { size, location, .. } = taffy.layout(node2).unwrap();
61 assert_eq!(size.width, 20f32, "width of node {:?}. Expected {}. Actual {}", node2.data(), 20f32, size.width);
62 assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node2.data(), 100f32, size.height);
63 assert_eq!(location.x, 80f32, "x of node {:?}. Expected {}. Actual {}", node2.data(), 80f32, location.x);
64 assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node2.data(), 0f32, location.y);
65}