tawasuyu/taffy

1#[test]
2fn justify_content_row_max_width_and_margin() {
3    #[allow(unused_imports)]
4    use taffy::{prelude::*, tree::Layout, TaffyTree};
5    let mut taffy: TaffyTree<crate::TextMeasure> = TaffyTree::new();
6    let node0 = taffy
7        .new_leaf(taffy::style::Style {
8            size: taffy::geometry::Size {
9                width: taffy::style::Dimension::Length(20f32),
10                height: taffy::style::Dimension::Length(20f32),
11            },
12            margin: taffy::geometry::Rect {
13                left: taffy::style::LengthPercentageAuto::Length(100f32),
14                right: zero(),
15                top: zero(),
16                bottom: zero(),
17            },
18            ..Default::default()
19        })
20        .unwrap();
21    let node = taffy
22        .new_with_children(
23            taffy::style::Style {
24                justify_content: Some(taffy::style::JustifyContent::Center),
25                size: taffy::geometry::Size { width: taffy::style::Dimension::Length(100f32), height: auto() },
26                max_size: taffy::geometry::Size { width: taffy::style::Dimension::Length(80f32), height: auto() },
27                ..Default::default()
28            },
29            &[node0],
30        )
31        .unwrap();
32    taffy.compute_layout_with_measure(node, taffy::geometry::Size::MAX_CONTENT, crate::test_measure_function).unwrap();
33    println!("\nComputed tree:");
34    taffy.print_tree(node);
35    println!();
36    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
37    let layout @ Layout { size, location, .. } = taffy.layout(node).unwrap();
38    assert_eq!(size.width, 80f32, "width of node {:?}. Expected {}. Actual {}", node, 80f32, size.width);
39    assert_eq!(size.height, 20f32, "height of node {:?}. Expected {}. Actual {}", node, 20f32, size.height);
40    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node, 0f32, location.x);
41    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node, 0f32, location.y);
42    #[cfg(feature = "content_size")]
43    assert_eq!(
44        layout.scroll_width(),
45        0f32,
46        "scroll_width of node {:?}. Expected {}. Actual {}",
47        node,
48        0f32,
49        layout.scroll_width()
50    );
51    #[cfg(feature = "content_size")]
52    assert_eq!(
53        layout.scroll_height(),
54        0f32,
55        "scroll_height of node {:?}. Expected {}. Actual {}",
56        node,
57        0f32,
58        layout.scroll_height()
59    );
60    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
61    let layout @ Layout { size, location, .. } = taffy.layout(node0).unwrap();
62    assert_eq!(size.width, 0f32, "width of node {:?}. Expected {}. Actual {}", node0, 0f32, size.width);
63    assert_eq!(size.height, 20f32, "height of node {:?}. Expected {}. Actual {}", node0, 20f32, size.height);
64    assert_eq!(location.x, 90f32, "x of node {:?}. Expected {}. Actual {}", node0, 90f32, location.x);
65    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0, 0f32, location.y);
66    #[cfg(feature = "content_size")]
67    assert_eq!(
68        layout.scroll_width(),
69        0f32,
70        "scroll_width of node {:?}. Expected {}. Actual {}",
71        node0,
72        0f32,
73        layout.scroll_width()
74    );
75    #[cfg(feature = "content_size")]
76    assert_eq!(
77        layout.scroll_height(),
78        0f32,
79        "scroll_height of node {:?}. Expected {}. Actual {}",
80        node0,
81        0f32,
82        layout.scroll_height()
83    );
84}