Add `taffy_test_helpers` crate (#755)
1#[test]
2#[allow(non_snake_case)]
3fn grid_placement_auto_negative__border_box() {
4 #[allow(unused_imports)]
5 use taffy::{prelude::*, Layout};
6 let mut taffy = crate::new_test_tree();
7 let node0 = taffy
8 .new_leaf(taffy::style::Style {
9 grid_row: taffy::geometry::Line { start: line(1i16), end: taffy::style::GridPlacement::Auto },
10 grid_column: taffy::geometry::Line { start: line(-5i16), end: taffy::style::GridPlacement::Auto },
11 ..Default::default()
12 })
13 .unwrap();
14 let node1 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
15 let node2 = taffy
16 .new_leaf(taffy::style::Style {
17 grid_row: taffy::geometry::Line { start: line(2i16), end: taffy::style::GridPlacement::Auto },
18 ..Default::default()
19 })
20 .unwrap();
21 let node = taffy
22 .new_with_children(
23 taffy::style::Style {
24 display: taffy::style::Display::Grid,
25 grid_template_rows: vec![length(40f32), length(40f32)],
26 grid_template_columns: vec![length(40f32), length(40f32)],
27 size: taffy::geometry::Size {
28 width: taffy::style::Dimension::Length(120f32),
29 height: taffy::style::Dimension::Length(120f32),
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 let layout = taffy.layout(node).unwrap();
41 let Layout { size, location, .. } = layout;
42 assert_eq!(size.width, 120f32, "width of node {:?}. Expected {}. Actual {}", node, 120f32, size.width);
43 assert_eq!(size.height, 120f32, "height of node {:?}. Expected {}. Actual {}", node, 120f32, 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 let layout = taffy.layout(node0).unwrap();
47 let Layout { size, location, .. } = layout;
48 assert_eq!(size.width, 20f32, "width of node {:?}. Expected {}. Actual {}", node0, 20f32, size.width);
49 assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node0, 40f32, size.height);
50 assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0, 0f32, location.x);
51 assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0, 0f32, location.y);
52 let layout = taffy.layout(node1).unwrap();
53 let Layout { size, location, .. } = layout;
54 assert_eq!(size.width, 20f32, "width of node {:?}. Expected {}. Actual {}", node1, 20f32, size.width);
55 assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node1, 40f32, size.height);
56 assert_eq!(location.x, 20f32, "x of node {:?}. Expected {}. Actual {}", node1, 20f32, location.x);
57 assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node1, 0f32, location.y);
58 let layout = taffy.layout(node2).unwrap();
59 let Layout { size, location, .. } = layout;
60 assert_eq!(size.width, 20f32, "width of node {:?}. Expected {}. Actual {}", node2, 20f32, size.width);
61 assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node2, 40f32, size.height);
62 assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node2, 0f32, location.x);
63 assert_eq!(location.y, 40f32, "y of node {:?}. Expected {}. Actual {}", node2, 40f32, location.y);
64}
65
66#[test]
67#[allow(non_snake_case)]
68fn grid_placement_auto_negative__content_box() {
69 #[allow(unused_imports)]
70 use taffy::{prelude::*, Layout};
71 let mut taffy = crate::new_test_tree();
72 let node0 = taffy
73 .new_leaf(taffy::style::Style {
74 box_sizing: taffy::style::BoxSizing::ContentBox,
75 grid_row: taffy::geometry::Line { start: line(1i16), end: taffy::style::GridPlacement::Auto },
76 grid_column: taffy::geometry::Line { start: line(-5i16), end: taffy::style::GridPlacement::Auto },
77 ..Default::default()
78 })
79 .unwrap();
80 let node1 = taffy
81 .new_leaf(taffy::style::Style { box_sizing: taffy::style::BoxSizing::ContentBox, ..Default::default() })
82 .unwrap();
83 let node2 = taffy
84 .new_leaf(taffy::style::Style {
85 box_sizing: taffy::style::BoxSizing::ContentBox,
86 grid_row: taffy::geometry::Line { start: line(2i16), end: taffy::style::GridPlacement::Auto },
87 ..Default::default()
88 })
89 .unwrap();
90 let node = taffy
91 .new_with_children(
92 taffy::style::Style {
93 display: taffy::style::Display::Grid,
94 box_sizing: taffy::style::BoxSizing::ContentBox,
95 grid_template_rows: vec![length(40f32), length(40f32)],
96 grid_template_columns: vec![length(40f32), length(40f32)],
97 size: taffy::geometry::Size {
98 width: taffy::style::Dimension::Length(120f32),
99 height: taffy::style::Dimension::Length(120f32),
100 },
101 ..Default::default()
102 },
103 &[node0, node1, node2],
104 )
105 .unwrap();
106 taffy.compute_layout_with_measure(node, taffy::geometry::Size::MAX_CONTENT, crate::test_measure_function).unwrap();
107 println!("\nComputed tree:");
108 taffy.print_tree(node);
109 println!();
110 let layout = taffy.layout(node).unwrap();
111 let Layout { size, location, .. } = layout;
112 assert_eq!(size.width, 120f32, "width of node {:?}. Expected {}. Actual {}", node, 120f32, size.width);
113 assert_eq!(size.height, 120f32, "height of node {:?}. Expected {}. Actual {}", node, 120f32, size.height);
114 assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node, 0f32, location.x);
115 assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node, 0f32, location.y);
116 let layout = taffy.layout(node0).unwrap();
117 let Layout { size, location, .. } = layout;
118 assert_eq!(size.width, 20f32, "width of node {:?}. Expected {}. Actual {}", node0, 20f32, size.width);
119 assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node0, 40f32, size.height);
120 assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0, 0f32, location.x);
121 assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0, 0f32, location.y);
122 let layout = taffy.layout(node1).unwrap();
123 let Layout { size, location, .. } = layout;
124 assert_eq!(size.width, 20f32, "width of node {:?}. Expected {}. Actual {}", node1, 20f32, size.width);
125 assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node1, 40f32, size.height);
126 assert_eq!(location.x, 20f32, "x of node {:?}. Expected {}. Actual {}", node1, 20f32, location.x);
127 assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node1, 0f32, location.y);
128 let layout = taffy.layout(node2).unwrap();
129 let Layout { size, location, .. } = layout;
130 assert_eq!(size.width, 20f32, "width of node {:?}. Expected {}. Actual {}", node2, 20f32, size.width);
131 assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node2, 40f32, size.height);
132 assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node2, 0f32, location.x);
133 assert_eq!(location.y, 40f32, "y of node {:?}. Expected {}. Actual {}", node2, 40f32, location.y);
134}