1use taffy::{geometry::Point, style::Dimension};
2
3#[test]
4fn simple_child() {
5 let mut taffy = taffy::Taffy::new();
6 let node0_0 = taffy
7 .new_node(
8 taffy::style::Style {
9 align_self: taffy::prelude::AlignSelf::Center,
10 size: taffy::geometry::Size { width: Dimension::Points(10f32), height: Dimension::Points(10f32) },
11 ..Default::default()
12 },
13 &[],
14 )
15 .unwrap();
16 let node0 = taffy
17 .new_node(
18 taffy::style::Style {
19 size: taffy::geometry::Size { width: Dimension::Points(10f32), height: Dimension::Points(10f32) },
20 ..Default::default()
21 },
22 &[node0_0],
23 )
24 .unwrap();
25 let node1_0 = taffy
26 .new_node(
27 taffy::style::Style {
28 align_self: taffy::prelude::AlignSelf::Center,
29 size: taffy::geometry::Size { width: Dimension::Points(10f32), height: Dimension::Points(10f32) },
30 ..Default::default()
31 },
32 &[],
33 )
34 .unwrap();
35 let node1_1 = taffy
36 .new_node(
37 taffy::style::Style {
38 align_self: taffy::prelude::AlignSelf::Center,
39 size: taffy::geometry::Size { width: Dimension::Points(10f32), height: Dimension::Points(10f32) },
40 ..Default::default()
41 },
42 &[],
43 )
44 .unwrap();
45 let node1 = taffy
46 .new_node(
47 taffy::style::Style {
48 size: taffy::geometry::Size { width: Dimension::Undefined, height: Dimension::Undefined },
49 ..Default::default()
50 },
51 &[node1_0, node1_1],
52 )
53 .unwrap();
54 let node = taffy
55 .new_node(
56 taffy::style::Style {
57 size: taffy::geometry::Size { width: Dimension::Percent(100.0), height: Dimension::Percent(100.0) },
58 ..Default::default()
59 },
60 &[node0, node1],
61 )
62 .unwrap();
63 taffy
64 .compute_layout(
65 node,
66 taffy::geometry::Size {
67 width: taffy::prelude::Number::Defined(100f32),
68 height: taffy::prelude::Number::Defined(100f32),
69 },
70 )
71 .unwrap();
72 assert_eq!(taffy.layout(node).unwrap().location, Point { x: 0.0, y: 0.0 });
73 assert_eq!(taffy.layout(node0).unwrap().location, Point { x: 0.0, y: 0.0 });
74 assert_eq!(taffy.layout(node1).unwrap().location, Point { x: 10.0, y: 0.0 });
75 assert_eq!(taffy.layout(node0_0).unwrap().location, Point { x: 0.0, y: 0.0 });
76 // Layout is relative so node1_0 location starts at (0,0) and is not ofset by it's parent location
77 assert_eq!(taffy.layout(node1_0).unwrap().location, Point { x: 00.0, y: 0.0 });
78 assert_eq!(taffy.layout(node1_1).unwrap().location, Point { x: 10.0, y: 0.0 });
79}