tawasuyu/taffy

1#[test]
2fn block_absolute_child_with_max_height() {
3    #[allow(unused_imports)]
4    use taffy::{prelude::*, tree::Layout, TaffyTree};
5    let mut taffy: TaffyTree<crate::TextMeasure> = TaffyTree::new();
6    let node00 = taffy
7        .new_leaf(taffy::style::Style {
8            display: taffy::style::Display::Block,
9            size: taffy::geometry::Size {
10                width: taffy::style::Dimension::Length(100f32),
11                height: taffy::style::Dimension::Length(150f32),
12            },
13            ..Default::default()
14        })
15        .unwrap();
16    let node0 = taffy
17        .new_with_children(
18            taffy::style::Style {
19                display: taffy::style::Display::Block,
20                position: taffy::style::Position::Absolute,
21                max_size: taffy::geometry::Size { width: auto(), height: taffy::style::Dimension::Length(100f32) },
22                inset: taffy::geometry::Rect {
23                    left: auto(),
24                    right: auto(),
25                    top: auto(),
26                    bottom: taffy::style::LengthPercentageAuto::Length(20f32),
27                },
28                ..Default::default()
29            },
30            &[node00],
31        )
32        .unwrap();
33    let node = taffy
34        .new_with_children(
35            taffy::style::Style {
36                display: taffy::style::Display::Block,
37                size: taffy::geometry::Size {
38                    width: taffy::style::Dimension::Length(100f32),
39                    height: taffy::style::Dimension::Length(200f32),
40                },
41                ..Default::default()
42            },
43            &[node0],
44        )
45        .unwrap();
46    taffy.compute_layout_with_measure(node, taffy::geometry::Size::MAX_CONTENT, crate::test_measure_function).unwrap();
47    println!("\nComputed tree:");
48    taffy.print_tree(node);
49    println!();
50    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
51    let layout @ Layout { size, location, .. } = taffy.layout(node).unwrap();
52    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node, 100f32, size.width);
53    assert_eq!(size.height, 200f32, "height of node {:?}. Expected {}. Actual {}", node, 200f32, size.height);
54    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node, 0f32, location.x);
55    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node, 0f32, location.y);
56    #[cfg(feature = "content_size")]
57    assert_eq!(
58        layout.scroll_width(),
59        0f32,
60        "scroll_width of node {:?}. Expected {}. Actual {}",
61        node,
62        0f32,
63        layout.scroll_width()
64    );
65    #[cfg(feature = "content_size")]
66    assert_eq!(
67        layout.scroll_height(),
68        30f32,
69        "scroll_height of node {:?}. Expected {}. Actual {}",
70        node,
71        30f32,
72        layout.scroll_height()
73    );
74    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
75    let layout @ Layout { size, location, .. } = taffy.layout(node0).unwrap();
76    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node0, 100f32, size.width);
77    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node0, 100f32, size.height);
78    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0, 0f32, location.x);
79    assert_eq!(location.y, 80f32, "y of node {:?}. Expected {}. Actual {}", node0, 80f32, location.y);
80    #[cfg(feature = "content_size")]
81    assert_eq!(
82        layout.scroll_width(),
83        0f32,
84        "scroll_width of node {:?}. Expected {}. Actual {}",
85        node0,
86        0f32,
87        layout.scroll_width()
88    );
89    #[cfg(feature = "content_size")]
90    assert_eq!(
91        layout.scroll_height(),
92        50f32,
93        "scroll_height of node {:?}. Expected {}. Actual {}",
94        node0,
95        50f32,
96        layout.scroll_height()
97    );
98    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
99    let layout @ Layout { size, location, .. } = taffy.layout(node00).unwrap();
100    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node00, 100f32, size.width);
101    assert_eq!(size.height, 150f32, "height of node {:?}. Expected {}. Actual {}", node00, 150f32, size.height);
102    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node00, 0f32, location.x);
103    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node00, 0f32, location.y);
104    #[cfg(feature = "content_size")]
105    assert_eq!(
106        layout.scroll_width(),
107        0f32,
108        "scroll_width of node {:?}. Expected {}. Actual {}",
109        node00,
110        0f32,
111        layout.scroll_width()
112    );
113    #[cfg(feature = "content_size")]
114    assert_eq!(
115        layout.scroll_height(),
116        0f32,
117        "scroll_height of node {:?}. Expected {}. Actual {}",
118        node00,
119        0f32,
120        layout.scroll_height()
121    );
122}