Implement §9.9.1. Flex Container Intrinsic Main Sizes (#354)
1#[test]
2fn simple_child() {
3 use slotmap::Key;
4 #[allow(unused_imports)]
5 use taffy::{layout::Layout, prelude::*};
6 let mut taffy = taffy::Taffy::new();
7 let node000 = taffy
8 .new_leaf(taffy::style::Style {
9 size: taffy::geometry::Size {
10 width: taffy::style::Dimension::Points(10f32),
11 height: taffy::style::Dimension::Points(10f32),
12 },
13 ..Default::default()
14 })
15 .unwrap();
16 let node00 = taffy
17 .new_with_children(
18 taffy::style::Style {
19 size: taffy::geometry::Size {
20 width: taffy::style::Dimension::Points(10f32),
21 height: taffy::style::Dimension::Points(10f32),
22 },
23 ..Default::default()
24 },
25 &[node000],
26 )
27 .unwrap();
28 let node010 = taffy
29 .new_leaf(taffy::style::Style {
30 align_self: Some(taffy::style::AlignSelf::Center),
31 size: taffy::geometry::Size {
32 width: taffy::style::Dimension::Points(10f32),
33 height: taffy::style::Dimension::Points(10f32),
34 },
35 ..Default::default()
36 })
37 .unwrap();
38 let node011 = taffy
39 .new_leaf(taffy::style::Style {
40 align_self: Some(taffy::style::AlignSelf::Center),
41 size: taffy::geometry::Size {
42 width: taffy::style::Dimension::Points(10f32),
43 height: taffy::style::Dimension::Points(10f32),
44 },
45 ..Default::default()
46 })
47 .unwrap();
48 let node01 = taffy.new_with_children(taffy::style::Style { ..Default::default() }, &[node010, node011]).unwrap();
49 let node0 = taffy
50 .new_with_children(
51 taffy::style::Style {
52 size: taffy::geometry::Size {
53 width: taffy::style::Dimension::Percent(1f32),
54 height: taffy::style::Dimension::Percent(1f32),
55 },
56 ..Default::default()
57 },
58 &[node00, node01],
59 )
60 .unwrap();
61 let node = taffy
62 .new_with_children(
63 taffy::style::Style {
64 size: taffy::geometry::Size {
65 width: taffy::style::Dimension::Points(100f32),
66 height: taffy::style::Dimension::Points(100f32),
67 },
68 ..Default::default()
69 },
70 &[node0],
71 )
72 .unwrap();
73 taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
74 println!("\nComputed tree:");
75 taffy::debug::print_tree(&taffy, node);
76 println!();
77 let Layout { size, location, .. } = taffy.layout(node).unwrap();
78 assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node.data(), 100f32, size.width);
79 assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node.data(), 100f32, size.height);
80 assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.x);
81 assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.y);
82 let Layout { size, location, .. } = taffy.layout(node0).unwrap();
83 assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node0.data(), 100f32, size.width);
84 assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node0.data(), 100f32, size.height);
85 assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.x);
86 assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.y);
87 let Layout { size, location, .. } = taffy.layout(node00).unwrap();
88 assert_eq!(size.width, 10f32, "width of node {:?}. Expected {}. Actual {}", node00.data(), 10f32, size.width);
89 assert_eq!(size.height, 10f32, "height of node {:?}. Expected {}. Actual {}", node00.data(), 10f32, size.height);
90 assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node00.data(), 0f32, location.x);
91 assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node00.data(), 0f32, location.y);
92 let Layout { size, location, .. } = taffy.layout(node000).unwrap();
93 assert_eq!(size.width, 10f32, "width of node {:?}. Expected {}. Actual {}", node000.data(), 10f32, size.width);
94 assert_eq!(size.height, 10f32, "height of node {:?}. Expected {}. Actual {}", node000.data(), 10f32, size.height);
95 assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node000.data(), 0f32, location.x);
96 assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node000.data(), 0f32, location.y);
97 let Layout { size, location, .. } = taffy.layout(node01).unwrap();
98 assert_eq!(size.width, 20f32, "width of node {:?}. Expected {}. Actual {}", node01.data(), 20f32, size.width);
99 assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node01.data(), 100f32, size.height);
100 assert_eq!(location.x, 10f32, "x of node {:?}. Expected {}. Actual {}", node01.data(), 10f32, location.x);
101 assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node01.data(), 0f32, location.y);
102 let Layout { size, location, .. } = taffy.layout(node010).unwrap();
103 assert_eq!(size.width, 10f32, "width of node {:?}. Expected {}. Actual {}", node010.data(), 10f32, size.width);
104 assert_eq!(size.height, 10f32, "height of node {:?}. Expected {}. Actual {}", node010.data(), 10f32, size.height);
105 assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node010.data(), 0f32, location.x);
106 assert_eq!(location.y, 45f32, "y of node {:?}. Expected {}. Actual {}", node010.data(), 45f32, location.y);
107 let Layout { size, location, .. } = taffy.layout(node011).unwrap();
108 assert_eq!(size.width, 10f32, "width of node {:?}. Expected {}. Actual {}", node011.data(), 10f32, size.width);
109 assert_eq!(size.height, 10f32, "height of node {:?}. Expected {}. Actual {}", node011.data(), 10f32, size.height);
110 assert_eq!(location.x, 10f32, "x of node {:?}. Expected {}. Actual {}", node011.data(), 10f32, location.x);
111 assert_eq!(location.y, 45f32, "y of node {:?}. Expected {}. Actual {}", node011.data(), 45f32, location.y);
112}