tawasuyu/taffy

1#[test]
2fn overflow_main_axis_shrink_scroll() {
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 {
9                overflow: taffy::geometry::Point {
10                    x: taffy::style::Overflow::Scroll,
11                    y: taffy::style::Overflow::Scroll,
12                },
13                scrollbar_width: 15f32,
14                flex_shrink: 1f32,
15                ..Default::default()
16            },
17            crate::TextMeasure {
18                text_content: "HHHHHHHHHH",
19                writing_mode: crate::WritingMode::Horizontal,
20                _aspect_ratio: None,
21            },
22        )
23        .unwrap();
24    let node = taffy
25        .new_with_children(
26            taffy::style::Style {
27                size: taffy::geometry::Size {
28                    width: taffy::style::Dimension::Length(50f32),
29                    height: taffy::style::Dimension::Length(50f32),
30                },
31                ..Default::default()
32            },
33            &[node0],
34        )
35        .unwrap();
36    taffy.compute_layout_with_measure(node, taffy::geometry::Size::MAX_CONTENT, crate::test_measure_function).unwrap();
37    println!("\nComputed tree:");
38    taffy.print_tree(node);
39    println!();
40    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
41    let layout @ Layout { size, location, .. } = taffy.layout(node).unwrap();
42    assert_eq!(size.width, 50f32, "width of node {:?}. Expected {}. Actual {}", node, 50f32, size.width);
43    assert_eq!(size.height, 50f32, "height of node {:?}. Expected {}. Actual {}", node, 50f32, size.height);
44    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node, 0f32, location.x);
45    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node, 0f32, location.y);
46    #[cfg(feature = "content_size")]
47    assert_eq!(
48        layout.scroll_width(),
49        0f32,
50        "scroll_width of node {:?}. Expected {}. Actual {}",
51        node,
52        0f32,
53        layout.scroll_width()
54    );
55    #[cfg(feature = "content_size")]
56    assert_eq!(
57        layout.scroll_height(),
58        0f32,
59        "scroll_height of node {:?}. Expected {}. Actual {}",
60        node,
61        0f32,
62        layout.scroll_height()
63    );
64    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
65    let layout @ Layout { size, location, .. } = taffy.layout(node0).unwrap();
66    assert_eq!(size.width, 50f32, "width of node {:?}. Expected {}. Actual {}", node0, 50f32, size.width);
67    assert_eq!(size.height, 50f32, "height of node {:?}. Expected {}. Actual {}", node0, 50f32, size.height);
68    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0, 0f32, location.x);
69    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0, 0f32, location.y);
70    #[cfg(feature = "content_size")]
71    assert_eq!(
72        layout.scroll_width(),
73        65f32,
74        "scroll_width of node {:?}. Expected {}. Actual {}",
75        node0,
76        65f32,
77        layout.scroll_width()
78    );
79    #[cfg(feature = "content_size")]
80    assert_eq!(
81        layout.scroll_height(),
82        0f32,
83        "scroll_height of node {:?}. Expected {}. Actual {}",
84        node0,
85        0f32,
86        layout.scroll_height()
87    );
88}