#[test] fn block_margin_auto_multiple_children() { #[allow(unused_imports)] use taffy::{prelude::*, tree::Layout, TaffyTree}; let mut taffy: TaffyTree = TaffyTree::new(); let node0 = taffy .new_leaf(taffy::style::Style { size: taffy::geometry::Size { width: taffy::style::Dimension::Length(100f32), height: taffy::style::Dimension::Length(50f32), }, margin: taffy::geometry::Rect { left: zero(), right: taffy::style::LengthPercentageAuto::Auto, top: zero(), bottom: zero(), }, ..Default::default() }) .unwrap(); let node1 = taffy .new_leaf(taffy::style::Style { size: taffy::geometry::Size { width: taffy::style::Dimension::Length(50f32), height: taffy::style::Dimension::Length(50f32), }, margin: taffy::geometry::Rect { left: zero(), right: taffy::style::LengthPercentageAuto::Auto, top: zero(), bottom: zero(), }, ..Default::default() }) .unwrap(); let node2 = taffy .new_leaf(taffy::style::Style { size: taffy::geometry::Size { width: taffy::style::Dimension::Length(50f32), height: taffy::style::Dimension::Length(50f32), }, ..Default::default() }) .unwrap(); let node = taffy .new_with_children( taffy::style::Style { display: taffy::style::Display::Block, align_items: Some(taffy::style::AlignItems::Center), size: taffy::geometry::Size { width: taffy::style::Dimension::Length(200f32), height: taffy::style::Dimension::Length(200f32), }, ..Default::default() }, &[node0, node1, node2], ) .unwrap(); taffy.compute_layout_with_measure(node, taffy::geometry::Size::MAX_CONTENT, crate::test_measure_function).unwrap(); println!("\nComputed tree:"); taffy.print_tree(node); println!(); #[cfg_attr(not(feature = "content_size"), allow(unused_variables))] let layout @ Layout { size, location, .. } = taffy.layout(node).unwrap(); assert_eq!(size.width, 200f32, "width of node {:?}. Expected {}. Actual {}", node, 200f32, size.width); assert_eq!(size.height, 200f32, "height of node {:?}. Expected {}. Actual {}", node, 200f32, size.height); assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node, 0f32, location.x); assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node, 0f32, location.y); #[cfg(feature = "content_size")] assert_eq!( layout.scroll_width(), 0f32, "scroll_width of node {:?}. Expected {}. Actual {}", node, 0f32, layout.scroll_width() ); #[cfg(feature = "content_size")] assert_eq!( layout.scroll_height(), 0f32, "scroll_height of node {:?}. Expected {}. Actual {}", node, 0f32, layout.scroll_height() ); #[cfg_attr(not(feature = "content_size"), allow(unused_variables))] let layout @ Layout { size, location, .. } = taffy.layout(node0).unwrap(); assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node0, 100f32, size.width); assert_eq!(size.height, 50f32, "height of node {:?}. Expected {}. Actual {}", node0, 50f32, size.height); assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0, 0f32, location.x); assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0, 0f32, location.y); #[cfg(feature = "content_size")] assert_eq!( layout.scroll_width(), 0f32, "scroll_width of node {:?}. Expected {}. Actual {}", node0, 0f32, layout.scroll_width() ); #[cfg(feature = "content_size")] assert_eq!( layout.scroll_height(), 0f32, "scroll_height of node {:?}. Expected {}. Actual {}", node0, 0f32, layout.scroll_height() ); #[cfg_attr(not(feature = "content_size"), allow(unused_variables))] let layout @ Layout { size, location, .. } = taffy.layout(node1).unwrap(); assert_eq!(size.width, 50f32, "width of node {:?}. Expected {}. Actual {}", node1, 50f32, size.width); assert_eq!(size.height, 50f32, "height of node {:?}. Expected {}. Actual {}", node1, 50f32, size.height); assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node1, 0f32, location.x); assert_eq!(location.y, 50f32, "y of node {:?}. Expected {}. Actual {}", node1, 50f32, location.y); #[cfg(feature = "content_size")] assert_eq!( layout.scroll_width(), 0f32, "scroll_width of node {:?}. Expected {}. Actual {}", node1, 0f32, layout.scroll_width() ); #[cfg(feature = "content_size")] assert_eq!( layout.scroll_height(), 0f32, "scroll_height of node {:?}. Expected {}. Actual {}", node1, 0f32, layout.scroll_height() ); #[cfg_attr(not(feature = "content_size"), allow(unused_variables))] let layout @ Layout { size, location, .. } = taffy.layout(node2).unwrap(); assert_eq!(size.width, 50f32, "width of node {:?}. Expected {}. Actual {}", node2, 50f32, size.width); assert_eq!(size.height, 50f32, "height of node {:?}. Expected {}. Actual {}", node2, 50f32, size.height); assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node2, 0f32, location.x); assert_eq!(location.y, 100f32, "y of node {:?}. Expected {}. Actual {}", node2, 100f32, location.y); #[cfg(feature = "content_size")] assert_eq!( layout.scroll_width(), 0f32, "scroll_width of node {:?}. Expected {}. Actual {}", node2, 0f32, layout.scroll_width() ); #[cfg(feature = "content_size")] assert_eq!( layout.scroll_height(), 0f32, "scroll_height of node {:?}. Expected {}. Actual {}", node2, 0f32, layout.scroll_height() ); }