tawasuyu/taffy

1#[test]
2fn justify_content_column_start_negative_space() {
3    use slotmap::Key;
4    #[allow(unused_imports)]
5    use taffy::{layout::Layout, prelude::*};
6    let mut taffy = taffy::Taffy::new();
7    let node00 = taffy
8        .new_leaf(taffy::style::Style {
9            flex_shrink: 0f32,
10            size: taffy::geometry::Size {
11                width: taffy::style::Dimension::Percent(0.8f32),
12                height: taffy::style::Dimension::Points(20f32),
13            },
14            ..Default::default()
15        })
16        .unwrap();
17    let node01 = taffy
18        .new_leaf(taffy::style::Style {
19            flex_shrink: 0f32,
20            size: taffy::geometry::Size {
21                width: taffy::style::Dimension::Percent(0.8f32),
22                height: taffy::style::Dimension::Points(20f32),
23            },
24            ..Default::default()
25        })
26        .unwrap();
27    let node02 = taffy
28        .new_leaf(taffy::style::Style {
29            flex_shrink: 0f32,
30            size: taffy::geometry::Size {
31                width: taffy::style::Dimension::Percent(0.8f32),
32                height: taffy::style::Dimension::Points(20f32),
33            },
34            ..Default::default()
35        })
36        .unwrap();
37    let node0 = taffy
38        .new_with_children(
39            taffy::style::Style {
40                display: taffy::style::Display::Flex,
41                flex_direction: taffy::style::FlexDirection::Column,
42                align_items: Some(taffy::style::AlignItems::Center),
43                justify_content: Some(taffy::style::JustifyContent::Start),
44                size: taffy::geometry::Size { width: auto(), height: taffy::style::Dimension::Points(10f32) },
45                ..Default::default()
46            },
47            &[node00, node01, node02],
48        )
49        .unwrap();
50    let node = taffy
51        .new_with_children(
52            taffy::style::Style {
53                display: taffy::style::Display::Flex,
54                flex_direction: taffy::style::FlexDirection::Column,
55                size: taffy::geometry::Size {
56                    width: taffy::style::Dimension::Points(320f32),
57                    height: taffy::style::Dimension::Points(320f32),
58                },
59                border: taffy::geometry::Rect {
60                    left: taffy::style::LengthPercentage::Points(60f32),
61                    right: taffy::style::LengthPercentage::Points(60f32),
62                    top: taffy::style::LengthPercentage::Points(60f32),
63                    bottom: taffy::style::LengthPercentage::Points(60f32),
64                },
65                ..Default::default()
66            },
67            &[node0],
68        )
69        .unwrap();
70    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
71    println!("\nComputed tree:");
72    taffy::debug::print_tree(&taffy, node);
73    println!();
74    let Layout { size, location, .. } = taffy.layout(node).unwrap();
75    assert_eq!(size.width, 320f32, "width of node {:?}. Expected {}. Actual {}", node.data(), 320f32, size.width);
76    assert_eq!(size.height, 320f32, "height of node {:?}. Expected {}. Actual {}", node.data(), 320f32, size.height);
77    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.x);
78    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.y);
79    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
80    assert_eq!(size.width, 200f32, "width of node {:?}. Expected {}. Actual {}", node0.data(), 200f32, size.width);
81    assert_eq!(size.height, 10f32, "height of node {:?}. Expected {}. Actual {}", node0.data(), 10f32, size.height);
82    assert_eq!(location.x, 60f32, "x of node {:?}. Expected {}. Actual {}", node0.data(), 60f32, location.x);
83    assert_eq!(location.y, 60f32, "y of node {:?}. Expected {}. Actual {}", node0.data(), 60f32, location.y);
84    let Layout { size, location, .. } = taffy.layout(node00).unwrap();
85    assert_eq!(size.width, 160f32, "width of node {:?}. Expected {}. Actual {}", node00.data(), 160f32, size.width);
86    assert_eq!(size.height, 20f32, "height of node {:?}. Expected {}. Actual {}", node00.data(), 20f32, size.height);
87    assert_eq!(location.x, 20f32, "x of node {:?}. Expected {}. Actual {}", node00.data(), 20f32, location.x);
88    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node00.data(), 0f32, location.y);
89    let Layout { size, location, .. } = taffy.layout(node01).unwrap();
90    assert_eq!(size.width, 160f32, "width of node {:?}. Expected {}. Actual {}", node01.data(), 160f32, size.width);
91    assert_eq!(size.height, 20f32, "height of node {:?}. Expected {}. Actual {}", node01.data(), 20f32, size.height);
92    assert_eq!(location.x, 20f32, "x of node {:?}. Expected {}. Actual {}", node01.data(), 20f32, location.x);
93    assert_eq!(location.y, 20f32, "y of node {:?}. Expected {}. Actual {}", node01.data(), 20f32, location.y);
94    let Layout { size, location, .. } = taffy.layout(node02).unwrap();
95    assert_eq!(size.width, 160f32, "width of node {:?}. Expected {}. Actual {}", node02.data(), 160f32, size.width);
96    assert_eq!(size.height, 20f32, "height of node {:?}. Expected {}. Actual {}", node02.data(), 20f32, size.height);
97    assert_eq!(location.x, 20f32, "x of node {:?}. Expected {}. Actual {}", node02.data(), 20f32, location.x);
98    assert_eq!(location.y, 40f32, "y of node {:?}. Expected {}. Actual {}", node02.data(), 40f32, location.y);
99}