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