tawasuyu/taffy

1#[test]
2fn grid_aspect_ratio_child_fill_content_width() {
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_with_context(
8            taffy::style::Style { aspect_ratio: Some(2f32), ..Default::default() },
9            crate::TextMeasure {
10                text_content: "HHHH",
11                writing_mode: crate::WritingMode::Horizontal,
12                _aspect_ratio: Some(2f32),
13            },
14        )
15        .unwrap();
16    let node1 = taffy
17        .new_leaf(taffy::style::Style {
18            size: taffy::geometry::Size { width: auto(), height: taffy::style::Dimension::Length(20f32) },
19            ..Default::default()
20        })
21        .unwrap();
22    let node = taffy
23        .new_with_children(
24            taffy::style::Style { display: taffy::style::Display::Grid, ..Default::default() },
25            &[node0, node1],
26        )
27        .unwrap();
28    taffy.compute_layout_with_measure(node, taffy::geometry::Size::MAX_CONTENT, crate::test_measure_function).unwrap();
29    println!("\nComputed tree:");
30    taffy.print_tree(node);
31    println!();
32    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
33    let layout @ Layout { size, location, .. } = taffy.layout(node).unwrap();
34    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node, 40f32, size.width);
35    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node, 40f32, size.height);
36    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node, 0f32, location.x);
37    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node, 0f32, location.y);
38    #[cfg(feature = "content_size")]
39    assert_eq!(
40        layout.scroll_width(),
41        0f32,
42        "scroll_width of node {:?}. Expected {}. Actual {}",
43        node,
44        0f32,
45        layout.scroll_width()
46    );
47    #[cfg(feature = "content_size")]
48    assert_eq!(
49        layout.scroll_height(),
50        0f32,
51        "scroll_height of node {:?}. Expected {}. Actual {}",
52        node,
53        0f32,
54        layout.scroll_height()
55    );
56    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
57    let layout @ Layout { size, location, .. } = taffy.layout(node0).unwrap();
58    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node0, 40f32, size.width);
59    assert_eq!(size.height, 20f32, "height of node {:?}. Expected {}. Actual {}", node0, 20f32, size.height);
60    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0, 0f32, location.x);
61    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0, 0f32, location.y);
62    #[cfg(feature = "content_size")]
63    assert_eq!(
64        layout.scroll_width(),
65        0f32,
66        "scroll_width of node {:?}. Expected {}. Actual {}",
67        node0,
68        0f32,
69        layout.scroll_width()
70    );
71    #[cfg(feature = "content_size")]
72    assert_eq!(
73        layout.scroll_height(),
74        0f32,
75        "scroll_height of node {:?}. Expected {}. Actual {}",
76        node0,
77        0f32,
78        layout.scroll_height()
79    );
80    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
81    let layout @ Layout { size, location, .. } = taffy.layout(node1).unwrap();
82    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node1, 40f32, size.width);
83    assert_eq!(size.height, 20f32, "height of node {:?}. Expected {}. Actual {}", node1, 20f32, size.height);
84    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node1, 0f32, location.x);
85    assert_eq!(location.y, 20f32, "y of node {:?}. Expected {}. Actual {}", node1, 20f32, location.y);
86    #[cfg(feature = "content_size")]
87    assert_eq!(
88        layout.scroll_width(),
89        0f32,
90        "scroll_width of node {:?}. Expected {}. Actual {}",
91        node1,
92        0f32,
93        layout.scroll_width()
94    );
95    #[cfg(feature = "content_size")]
96    assert_eq!(
97        layout.scroll_height(),
98        0f32,
99        "scroll_height of node {:?}. Expected {}. Actual {}",
100        node1,
101        0f32,
102        layout.scroll_height()
103    );
104}