tawasuyu/taffy

1#[test]
2fn align_content_center_single_line_negative_space() {
3    #[allow(unused_imports)]
4    use taffy::{prelude::*, tree::Layout};
5    let mut taffy = taffy::Taffy::new();
6    let node00 = taffy
7        .new_leaf(taffy::style::Style {
8            flex_shrink: 0f32,
9            size: taffy::geometry::Size {
10                width: taffy::style::Dimension::Percent(0.8f32),
11                height: taffy::style::Dimension::Length(60f32),
12            },
13            ..Default::default()
14        })
15        .unwrap();
16    let node0 = taffy
17        .new_with_children(
18            taffy::style::Style {
19                display: taffy::style::Display::Flex,
20                align_content: Some(taffy::style::AlignContent::Center),
21                justify_content: Some(taffy::style::JustifyContent::Center),
22                size: taffy::geometry::Size { width: auto(), height: taffy::style::Dimension::Length(10f32) },
23                ..Default::default()
24            },
25            &[node00],
26        )
27        .unwrap();
28    let node = taffy
29        .new_with_children(
30            taffy::style::Style {
31                display: taffy::style::Display::Flex,
32                flex_direction: taffy::style::FlexDirection::Column,
33                size: taffy::geometry::Size {
34                    width: taffy::style::Dimension::Length(320f32),
35                    height: taffy::style::Dimension::Length(320f32),
36                },
37                border: taffy::geometry::Rect {
38                    left: taffy::style::LengthPercentage::Length(60f32),
39                    right: taffy::style::LengthPercentage::Length(60f32),
40                    top: taffy::style::LengthPercentage::Length(60f32),
41                    bottom: taffy::style::LengthPercentage::Length(60f32),
42                },
43                ..Default::default()
44            },
45            &[node0],
46        )
47        .unwrap();
48    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
49    println!("\nComputed tree:");
50    taffy::util::print_tree(&taffy, node);
51    println!();
52    let Layout { size, location, .. } = taffy.layout(node).unwrap();
53    assert_eq!(size.width, 320f32, "width of node {:?}. Expected {}. Actual {}", node, 320f32, size.width);
54    assert_eq!(size.height, 320f32, "height of node {:?}. Expected {}. Actual {}", node, 320f32, size.height);
55    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node, 0f32, location.x);
56    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node, 0f32, location.y);
57    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
58    assert_eq!(size.width, 200f32, "width of node {:?}. Expected {}. Actual {}", node0, 200f32, size.width);
59    assert_eq!(size.height, 10f32, "height of node {:?}. Expected {}. Actual {}", node0, 10f32, size.height);
60    assert_eq!(location.x, 60f32, "x of node {:?}. Expected {}. Actual {}", node0, 60f32, location.x);
61    assert_eq!(location.y, 60f32, "y of node {:?}. Expected {}. Actual {}", node0, 60f32, location.y);
62    let Layout { size, location, .. } = taffy.layout(node00).unwrap();
63    assert_eq!(size.width, 160f32, "width of node {:?}. Expected {}. Actual {}", node00, 160f32, size.width);
64    assert_eq!(size.height, 60f32, "height of node {:?}. Expected {}. Actual {}", node00, 60f32, size.height);
65    assert_eq!(location.x, 20f32, "x of node {:?}. Expected {}. Actual {}", node00, 20f32, location.x);
66    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node00, 0f32, location.y);
67}