tawasuyu/taffy

1#[test]
2fn flex_wrap_wrap_to_child_height() {
3    #[allow(unused_imports)]
4    use taffy::{prelude::*, tree::Layout, TaffyTree};
5    let mut taffy: TaffyTree<crate::TextMeasure> = TaffyTree::new();
6    let node000 = taffy
7        .new_leaf(taffy::style::Style {
8            size: taffy::geometry::Size {
9                width: taffy::style::Dimension::Length(100f32),
10                height: taffy::style::Dimension::Length(100f32),
11            },
12            ..Default::default()
13        })
14        .unwrap();
15    let node00 = taffy
16        .new_with_children(
17            taffy::style::Style {
18                flex_direction: taffy::style::FlexDirection::Column,
19                size: taffy::geometry::Size { width: taffy::style::Dimension::Length(100f32), height: auto() },
20                ..Default::default()
21            },
22            &[node000],
23        )
24        .unwrap();
25    let node0 = taffy
26        .new_with_children(
27            taffy::style::Style {
28                flex_wrap: taffy::style::FlexWrap::Wrap,
29                align_items: Some(taffy::style::AlignItems::FlexStart),
30                ..Default::default()
31            },
32            &[node00],
33        )
34        .unwrap();
35    let node1 = taffy
36        .new_leaf(taffy::style::Style {
37            size: taffy::geometry::Size {
38                width: taffy::style::Dimension::Length(100f32),
39                height: taffy::style::Dimension::Length(100f32),
40            },
41            ..Default::default()
42        })
43        .unwrap();
44    let node = taffy
45        .new_with_children(
46            taffy::style::Style { flex_direction: taffy::style::FlexDirection::Column, ..Default::default() },
47            &[node0, node1],
48        )
49        .unwrap();
50    taffy.compute_layout_with_measure(node, taffy::geometry::Size::MAX_CONTENT, crate::test_measure_function).unwrap();
51    println!("\nComputed tree:");
52    taffy.print_tree(node);
53    println!();
54    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
55    let layout @ Layout { size, location, .. } = taffy.layout(node).unwrap();
56    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node, 100f32, size.width);
57    assert_eq!(size.height, 200f32, "height of node {:?}. Expected {}. Actual {}", node, 200f32, size.height);
58    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node, 0f32, location.x);
59    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node, 0f32, location.y);
60    #[cfg(feature = "content_size")]
61    assert_eq!(
62        layout.scroll_width(),
63        0f32,
64        "scroll_width of node {:?}. Expected {}. Actual {}",
65        node,
66        0f32,
67        layout.scroll_width()
68    );
69    #[cfg(feature = "content_size")]
70    assert_eq!(
71        layout.scroll_height(),
72        0f32,
73        "scroll_height of node {:?}. Expected {}. Actual {}",
74        node,
75        0f32,
76        layout.scroll_height()
77    );
78    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
79    let layout @ Layout { size, location, .. } = taffy.layout(node0).unwrap();
80    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node0, 100f32, size.width);
81    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node0, 100f32, size.height);
82    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0, 0f32, location.x);
83    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0, 0f32, location.y);
84    #[cfg(feature = "content_size")]
85    assert_eq!(
86        layout.scroll_width(),
87        0f32,
88        "scroll_width of node {:?}. Expected {}. Actual {}",
89        node0,
90        0f32,
91        layout.scroll_width()
92    );
93    #[cfg(feature = "content_size")]
94    assert_eq!(
95        layout.scroll_height(),
96        0f32,
97        "scroll_height of node {:?}. Expected {}. Actual {}",
98        node0,
99        0f32,
100        layout.scroll_height()
101    );
102    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
103    let layout @ Layout { size, location, .. } = taffy.layout(node00).unwrap();
104    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node00, 100f32, size.width);
105    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node00, 100f32, size.height);
106    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node00, 0f32, location.x);
107    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node00, 0f32, location.y);
108    #[cfg(feature = "content_size")]
109    assert_eq!(
110        layout.scroll_width(),
111        0f32,
112        "scroll_width of node {:?}. Expected {}. Actual {}",
113        node00,
114        0f32,
115        layout.scroll_width()
116    );
117    #[cfg(feature = "content_size")]
118    assert_eq!(
119        layout.scroll_height(),
120        0f32,
121        "scroll_height of node {:?}. Expected {}. Actual {}",
122        node00,
123        0f32,
124        layout.scroll_height()
125    );
126    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
127    let layout @ Layout { size, location, .. } = taffy.layout(node000).unwrap();
128    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node000, 100f32, size.width);
129    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node000, 100f32, size.height);
130    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node000, 0f32, location.x);
131    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node000, 0f32, location.y);
132    #[cfg(feature = "content_size")]
133    assert_eq!(
134        layout.scroll_width(),
135        0f32,
136        "scroll_width of node {:?}. Expected {}. Actual {}",
137        node000,
138        0f32,
139        layout.scroll_width()
140    );
141    #[cfg(feature = "content_size")]
142    assert_eq!(
143        layout.scroll_height(),
144        0f32,
145        "scroll_height of node {:?}. Expected {}. Actual {}",
146        node000,
147        0f32,
148        layout.scroll_height()
149    );
150    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
151    let layout @ Layout { size, location, .. } = taffy.layout(node1).unwrap();
152    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node1, 100f32, size.width);
153    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node1, 100f32, size.height);
154    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node1, 0f32, location.x);
155    assert_eq!(location.y, 100f32, "y of node {:?}. Expected {}. Actual {}", node1, 100f32, location.y);
156    #[cfg(feature = "content_size")]
157    assert_eq!(
158        layout.scroll_width(),
159        0f32,
160        "scroll_width of node {:?}. Expected {}. Actual {}",
161        node1,
162        0f32,
163        layout.scroll_width()
164    );
165    #[cfg(feature = "content_size")]
166    assert_eq!(
167        layout.scroll_height(),
168        0f32,
169        "scroll_height of node {:?}. Expected {}. Actual {}",
170        node1,
171        0f32,
172        layout.scroll_height()
173    );
174}