tawasuyu/taffy

1#[test]
2fn flex_direction_row() {
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 { width: taffy::style::Dimension::Length(10f32), height: auto() },
9            ..Default::default()
10        })
11        .unwrap();
12    let node1 = taffy
13        .new_leaf(taffy::style::Style {
14            size: taffy::geometry::Size { width: taffy::style::Dimension::Length(10f32), height: auto() },
15            ..Default::default()
16        })
17        .unwrap();
18    let node2 = taffy
19        .new_leaf(taffy::style::Style {
20            size: taffy::geometry::Size { width: taffy::style::Dimension::Length(10f32), height: auto() },
21            ..Default::default()
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(100f32),
29                    height: taffy::style::Dimension::Length(100f32),
30                },
31                ..Default::default()
32            },
33            &[node0, node1, node2],
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, 100f32, "width of node {:?}. Expected {}. Actual {}", node, 100f32, size.width);
43    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node, 100f32, 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, 10f32, "width of node {:?}. Expected {}. Actual {}", node0, 10f32, size.width);
67    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node0, 100f32, 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        0f32,
74        "scroll_width of node {:?}. Expected {}. Actual {}",
75        node0,
76        0f32,
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    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
89    let layout @ Layout { size, location, .. } = taffy.layout(node1).unwrap();
90    assert_eq!(size.width, 10f32, "width of node {:?}. Expected {}. Actual {}", node1, 10f32, size.width);
91    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node1, 100f32, size.height);
92    assert_eq!(location.x, 10f32, "x of node {:?}. Expected {}. Actual {}", node1, 10f32, location.x);
93    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node1, 0f32, location.y);
94    #[cfg(feature = "content_size")]
95    assert_eq!(
96        layout.scroll_width(),
97        0f32,
98        "scroll_width of node {:?}. Expected {}. Actual {}",
99        node1,
100        0f32,
101        layout.scroll_width()
102    );
103    #[cfg(feature = "content_size")]
104    assert_eq!(
105        layout.scroll_height(),
106        0f32,
107        "scroll_height of node {:?}. Expected {}. Actual {}",
108        node1,
109        0f32,
110        layout.scroll_height()
111    );
112    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
113    let layout @ Layout { size, location, .. } = taffy.layout(node2).unwrap();
114    assert_eq!(size.width, 10f32, "width of node {:?}. Expected {}. Actual {}", node2, 10f32, size.width);
115    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node2, 100f32, size.height);
116    assert_eq!(location.x, 20f32, "x of node {:?}. Expected {}. Actual {}", node2, 20f32, location.x);
117    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node2, 0f32, location.y);
118    #[cfg(feature = "content_size")]
119    assert_eq!(
120        layout.scroll_width(),
121        0f32,
122        "scroll_width of node {:?}. Expected {}. Actual {}",
123        node2,
124        0f32,
125        layout.scroll_width()
126    );
127    #[cfg(feature = "content_size")]
128    assert_eq!(
129        layout.scroll_height(),
130        0f32,
131        "scroll_height of node {:?}. Expected {}. Actual {}",
132        node2,
133        0f32,
134        layout.scroll_height()
135    );
136}