yoga 0.5.0

Rust bindings for Facebook's Yoga, a Flexbox layout engine
Documentation 
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/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

// @generated by gentest/gentest.rb from gentest/fixtures/YGFlexDirectionTest.html

extern crate ordered_float;
extern crate yoga;

use yoga::*;

#[test]
fn test_flex_direction_column_no_height() {
    let mut config = Config::new();

    let mut root = Node::new_with_config(&mut config);
    root.set_width(StyleUnit::Point(100_f32.into()));

    let mut root_child0 = Node::new_with_config(&mut config);
    root_child0.set_height(StyleUnit::Point(10_f32.into()));
    root.insert_child(&mut root_child0, 0);

    let mut root_child1 = Node::new_with_config(&mut config);
    root_child1.set_height(StyleUnit::Point(10_f32.into()));
    root.insert_child(&mut root_child1, 1);

    let mut root_child2 = Node::new_with_config(&mut config);
    root_child2.set_height(StyleUnit::Point(10_f32.into()));
    root.insert_child(&mut root_child2, 2);
    root.calculate_layout(Undefined, Undefined, Direction::LTR);

    assert_eq!(0_f32, root.get_layout_left());
    assert_eq!(0_f32, root.get_layout_top());
    assert_eq!(100_f32, root.get_layout_width());
    assert_eq!(30_f32, root.get_layout_height());

    assert_eq!(0_f32, root_child0.get_layout_left());
    assert_eq!(0_f32, root_child0.get_layout_top());
    assert_eq!(100_f32, root_child0.get_layout_width());
    assert_eq!(10_f32, root_child0.get_layout_height());

    assert_eq!(0_f32, root_child1.get_layout_left());
    assert_eq!(10_f32, root_child1.get_layout_top());
    assert_eq!(100_f32, root_child1.get_layout_width());
    assert_eq!(10_f32, root_child1.get_layout_height());

    assert_eq!(0_f32, root_child2.get_layout_left());
    assert_eq!(20_f32, root_child2.get_layout_top());
    assert_eq!(100_f32, root_child2.get_layout_width());
    assert_eq!(10_f32, root_child2.get_layout_height());

    root.calculate_layout(Undefined, Undefined, Direction::RTL);

    assert_eq!(0_f32, root.get_layout_left());
    assert_eq!(0_f32, root.get_layout_top());
    assert_eq!(100_f32, root.get_layout_width());
    assert_eq!(30_f32, root.get_layout_height());

    assert_eq!(0_f32, root_child0.get_layout_left());
    assert_eq!(0_f32, root_child0.get_layout_top());
    assert_eq!(100_f32, root_child0.get_layout_width());
    assert_eq!(10_f32, root_child0.get_layout_height());

    assert_eq!(0_f32, root_child1.get_layout_left());
    assert_eq!(10_f32, root_child1.get_layout_top());
    assert_eq!(100_f32, root_child1.get_layout_width());
    assert_eq!(10_f32, root_child1.get_layout_height());

    assert_eq!(0_f32, root_child2.get_layout_left());
    assert_eq!(20_f32, root_child2.get_layout_top());
    assert_eq!(100_f32, root_child2.get_layout_width());
    assert_eq!(10_f32, root_child2.get_layout_height());
}

#[test]
fn test_flex_direction_row_no_width() {
    let mut config = Config::new();

    let mut root = Node::new_with_config(&mut config);
    root.set_flex_direction(FlexDirection::Row);
    root.set_height(StyleUnit::Point(100_f32.into()));

    let mut root_child0 = Node::new_with_config(&mut config);
    root_child0.set_width(StyleUnit::Point(10_f32.into()));
    root.insert_child(&mut root_child0, 0);

    let mut root_child1 = Node::new_with_config(&mut config);
    root_child1.set_width(StyleUnit::Point(10_f32.into()));
    root.insert_child(&mut root_child1, 1);

    let mut root_child2 = Node::new_with_config(&mut config);
    root_child2.set_width(StyleUnit::Point(10_f32.into()));
    root.insert_child(&mut root_child2, 2);
    root.calculate_layout(Undefined, Undefined, Direction::LTR);

    assert_eq!(0_f32, root.get_layout_left());
    assert_eq!(0_f32, root.get_layout_top());
    assert_eq!(30_f32, root.get_layout_width());
    assert_eq!(100_f32, root.get_layout_height());

    assert_eq!(0_f32, root_child0.get_layout_left());
    assert_eq!(0_f32, root_child0.get_layout_top());
    assert_eq!(10_f32, root_child0.get_layout_width());
    assert_eq!(100_f32, root_child0.get_layout_height());

    assert_eq!(10_f32, root_child1.get_layout_left());
    assert_eq!(0_f32, root_child1.get_layout_top());
    assert_eq!(10_f32, root_child1.get_layout_width());
    assert_eq!(100_f32, root_child1.get_layout_height());

    assert_eq!(20_f32, root_child2.get_layout_left());
    assert_eq!(0_f32, root_child2.get_layout_top());
    assert_eq!(10_f32, root_child2.get_layout_width());
    assert_eq!(100_f32, root_child2.get_layout_height());

    root.calculate_layout(Undefined, Undefined, Direction::RTL);

    assert_eq!(0_f32, root.get_layout_left());
    assert_eq!(0_f32, root.get_layout_top());
    assert_eq!(30_f32, root.get_layout_width());
    assert_eq!(100_f32, root.get_layout_height());

    assert_eq!(20_f32, root_child0.get_layout_left());
    assert_eq!(0_f32, root_child0.get_layout_top());
    assert_eq!(10_f32, root_child0.get_layout_width());
    assert_eq!(100_f32, root_child0.get_layout_height());

    assert_eq!(10_f32, root_child1.get_layout_left());
    assert_eq!(0_f32, root_child1.get_layout_top());
    assert_eq!(10_f32, root_child1.get_layout_width());
    assert_eq!(100_f32, root_child1.get_layout_height());

    assert_eq!(0_f32, root_child2.get_layout_left());
    assert_eq!(0_f32, root_child2.get_layout_top());
    assert_eq!(10_f32, root_child2.get_layout_width());
    assert_eq!(100_f32, root_child2.get_layout_height());
}

#[test]
fn test_flex_direction_column() {
    let mut config = Config::new();

    let mut root = Node::new_with_config(&mut config);
    root.set_width(StyleUnit::Point(100_f32.into()));
    root.set_height(StyleUnit::Point(100_f32.into()));

    let mut root_child0 = Node::new_with_config(&mut config);
    root_child0.set_height(StyleUnit::Point(10_f32.into()));
    root.insert_child(&mut root_child0, 0);

    let mut root_child1 = Node::new_with_config(&mut config);
    root_child1.set_height(StyleUnit::Point(10_f32.into()));
    root.insert_child(&mut root_child1, 1);

    let mut root_child2 = Node::new_with_config(&mut config);
    root_child2.set_height(StyleUnit::Point(10_f32.into()));
    root.insert_child(&mut root_child2, 2);
    root.calculate_layout(Undefined, Undefined, Direction::LTR);

    assert_eq!(0_f32, root.get_layout_left());
    assert_eq!(0_f32, root.get_layout_top());
    assert_eq!(100_f32, root.get_layout_width());
    assert_eq!(100_f32, root.get_layout_height());

    assert_eq!(0_f32, root_child0.get_layout_left());
    assert_eq!(0_f32, root_child0.get_layout_top());
    assert_eq!(100_f32, root_child0.get_layout_width());
    assert_eq!(10_f32, root_child0.get_layout_height());

    assert_eq!(0_f32, root_child1.get_layout_left());
    assert_eq!(10_f32, root_child1.get_layout_top());
    assert_eq!(100_f32, root_child1.get_layout_width());
    assert_eq!(10_f32, root_child1.get_layout_height());

    assert_eq!(0_f32, root_child2.get_layout_left());
    assert_eq!(20_f32, root_child2.get_layout_top());
    assert_eq!(100_f32, root_child2.get_layout_width());
    assert_eq!(10_f32, root_child2.get_layout_height());

    root.calculate_layout(Undefined, Undefined, Direction::RTL);

    assert_eq!(0_f32, root.get_layout_left());
    assert_eq!(0_f32, root.get_layout_top());
    assert_eq!(100_f32, root.get_layout_width());
    assert_eq!(100_f32, root.get_layout_height());

    assert_eq!(0_f32, root_child0.get_layout_left());
    assert_eq!(0_f32, root_child0.get_layout_top());
    assert_eq!(100_f32, root_child0.get_layout_width());
    assert_eq!(10_f32, root_child0.get_layout_height());

    assert_eq!(0_f32, root_child1.get_layout_left());
    assert_eq!(10_f32, root_child1.get_layout_top());
    assert_eq!(100_f32, root_child1.get_layout_width());
    assert_eq!(10_f32, root_child1.get_layout_height());

    assert_eq!(0_f32, root_child2.get_layout_left());
    assert_eq!(20_f32, root_child2.get_layout_top());
    assert_eq!(100_f32, root_child2.get_layout_width());
    assert_eq!(10_f32, root_child2.get_layout_height());
}

#[test]
fn test_flex_direction_row() {
    let mut config = Config::new();

    let mut root = Node::new_with_config(&mut config);
    root.set_flex_direction(FlexDirection::Row);
    root.set_width(StyleUnit::Point(100_f32.into()));
    root.set_height(StyleUnit::Point(100_f32.into()));

    let mut root_child0 = Node::new_with_config(&mut config);
    root_child0.set_width(StyleUnit::Point(10_f32.into()));
    root.insert_child(&mut root_child0, 0);

    let mut root_child1 = Node::new_with_config(&mut config);
    root_child1.set_width(StyleUnit::Point(10_f32.into()));
    root.insert_child(&mut root_child1, 1);

    let mut root_child2 = Node::new_with_config(&mut config);
    root_child2.set_width(StyleUnit::Point(10_f32.into()));
    root.insert_child(&mut root_child2, 2);
    root.calculate_layout(Undefined, Undefined, Direction::LTR);

    assert_eq!(0_f32, root.get_layout_left());
    assert_eq!(0_f32, root.get_layout_top());
    assert_eq!(100_f32, root.get_layout_width());
    assert_eq!(100_f32, root.get_layout_height());

    assert_eq!(0_f32, root_child0.get_layout_left());
    assert_eq!(0_f32, root_child0.get_layout_top());
    assert_eq!(10_f32, root_child0.get_layout_width());
    assert_eq!(100_f32, root_child0.get_layout_height());

    assert_eq!(10_f32, root_child1.get_layout_left());
    assert_eq!(0_f32, root_child1.get_layout_top());
    assert_eq!(10_f32, root_child1.get_layout_width());
    assert_eq!(100_f32, root_child1.get_layout_height());

    assert_eq!(20_f32, root_child2.get_layout_left());
    assert_eq!(0_f32, root_child2.get_layout_top());
    assert_eq!(10_f32, root_child2.get_layout_width());
    assert_eq!(100_f32, root_child2.get_layout_height());

    root.calculate_layout(Undefined, Undefined, Direction::RTL);

    assert_eq!(0_f32, root.get_layout_left());
    assert_eq!(0_f32, root.get_layout_top());
    assert_eq!(100_f32, root.get_layout_width());
    assert_eq!(100_f32, root.get_layout_height());

    assert_eq!(90_f32, root_child0.get_layout_left());
    assert_eq!(0_f32, root_child0.get_layout_top());
    assert_eq!(10_f32, root_child0.get_layout_width());
    assert_eq!(100_f32, root_child0.get_layout_height());

    assert_eq!(80_f32, root_child1.get_layout_left());
    assert_eq!(0_f32, root_child1.get_layout_top());
    assert_eq!(10_f32, root_child1.get_layout_width());
    assert_eq!(100_f32, root_child1.get_layout_height());

    assert_eq!(70_f32, root_child2.get_layout_left());
    assert_eq!(0_f32, root_child2.get_layout_top());
    assert_eq!(10_f32, root_child2.get_layout_width());
    assert_eq!(100_f32, root_child2.get_layout_height());
}

#[test]
fn test_flex_direction_column_reverse() {
    let mut config = Config::new();

    let mut root = Node::new_with_config(&mut config);
    root.set_flex_direction(FlexDirection::ColumnReverse);
    root.set_width(StyleUnit::Point(100_f32.into()));
    root.set_height(StyleUnit::Point(100_f32.into()));

    let mut root_child0 = Node::new_with_config(&mut config);
    root_child0.set_height(StyleUnit::Point(10_f32.into()));
    root.insert_child(&mut root_child0, 0);

    let mut root_child1 = Node::new_with_config(&mut config);
    root_child1.set_height(StyleUnit::Point(10_f32.into()));
    root.insert_child(&mut root_child1, 1);

    let mut root_child2 = Node::new_with_config(&mut config);
    root_child2.set_height(StyleUnit::Point(10_f32.into()));
    root.insert_child(&mut root_child2, 2);
    root.calculate_layout(Undefined, Undefined, Direction::LTR);

    assert_eq!(0_f32, root.get_layout_left());
    assert_eq!(0_f32, root.get_layout_top());
    assert_eq!(100_f32, root.get_layout_width());
    assert_eq!(100_f32, root.get_layout_height());

    assert_eq!(0_f32, root_child0.get_layout_left());
    assert_eq!(90_f32, root_child0.get_layout_top());
    assert_eq!(100_f32, root_child0.get_layout_width());
    assert_eq!(10_f32, root_child0.get_layout_height());

    assert_eq!(0_f32, root_child1.get_layout_left());
    assert_eq!(80_f32, root_child1.get_layout_top());
    assert_eq!(100_f32, root_child1.get_layout_width());
    assert_eq!(10_f32, root_child1.get_layout_height());

    assert_eq!(0_f32, root_child2.get_layout_left());
    assert_eq!(70_f32, root_child2.get_layout_top());
    assert_eq!(100_f32, root_child2.get_layout_width());
    assert_eq!(10_f32, root_child2.get_layout_height());

    root.calculate_layout(Undefined, Undefined, Direction::RTL);

    assert_eq!(0_f32, root.get_layout_left());
    assert_eq!(0_f32, root.get_layout_top());
    assert_eq!(100_f32, root.get_layout_width());
    assert_eq!(100_f32, root.get_layout_height());

    assert_eq!(0_f32, root_child0.get_layout_left());
    assert_eq!(90_f32, root_child0.get_layout_top());
    assert_eq!(100_f32, root_child0.get_layout_width());
    assert_eq!(10_f32, root_child0.get_layout_height());

    assert_eq!(0_f32, root_child1.get_layout_left());
    assert_eq!(80_f32, root_child1.get_layout_top());
    assert_eq!(100_f32, root_child1.get_layout_width());
    assert_eq!(10_f32, root_child1.get_layout_height());

    assert_eq!(0_f32, root_child2.get_layout_left());
    assert_eq!(70_f32, root_child2.get_layout_top());
    assert_eq!(100_f32, root_child2.get_layout_width());
    assert_eq!(10_f32, root_child2.get_layout_height());
}

#[test]
fn test_flex_direction_row_reverse() {
    let mut config = Config::new();

    let mut root = Node::new_with_config(&mut config);
    root.set_flex_direction(FlexDirection::RowReverse);
    root.set_width(StyleUnit::Point(100_f32.into()));
    root.set_height(StyleUnit::Point(100_f32.into()));

    let mut root_child0 = Node::new_with_config(&mut config);
    root_child0.set_width(StyleUnit::Point(10_f32.into()));
    root.insert_child(&mut root_child0, 0);

    let mut root_child1 = Node::new_with_config(&mut config);
    root_child1.set_width(StyleUnit::Point(10_f32.into()));
    root.insert_child(&mut root_child1, 1);

    let mut root_child2 = Node::new_with_config(&mut config);
    root_child2.set_width(StyleUnit::Point(10_f32.into()));
    root.insert_child(&mut root_child2, 2);
    root.calculate_layout(Undefined, Undefined, Direction::LTR);

    assert_eq!(0_f32, root.get_layout_left());
    assert_eq!(0_f32, root.get_layout_top());
    assert_eq!(100_f32, root.get_layout_width());
    assert_eq!(100_f32, root.get_layout_height());

    assert_eq!(90_f32, root_child0.get_layout_left());
    assert_eq!(0_f32, root_child0.get_layout_top());
    assert_eq!(10_f32, root_child0.get_layout_width());
    assert_eq!(100_f32, root_child0.get_layout_height());

    assert_eq!(80_f32, root_child1.get_layout_left());
    assert_eq!(0_f32, root_child1.get_layout_top());
    assert_eq!(10_f32, root_child1.get_layout_width());
    assert_eq!(100_f32, root_child1.get_layout_height());

    assert_eq!(70_f32, root_child2.get_layout_left());
    assert_eq!(0_f32, root_child2.get_layout_top());
    assert_eq!(10_f32, root_child2.get_layout_width());
    assert_eq!(100_f32, root_child2.get_layout_height());

    root.calculate_layout(Undefined, Undefined, Direction::RTL);

    assert_eq!(0_f32, root.get_layout_left());
    assert_eq!(0_f32, root.get_layout_top());
    assert_eq!(100_f32, root.get_layout_width());
    assert_eq!(100_f32, root.get_layout_height());

    assert_eq!(0_f32, root_child0.get_layout_left());
    assert_eq!(0_f32, root_child0.get_layout_top());
    assert_eq!(10_f32, root_child0.get_layout_width());
    assert_eq!(100_f32, root_child0.get_layout_height());

    assert_eq!(10_f32, root_child1.get_layout_left());
    assert_eq!(0_f32, root_child1.get_layout_top());
    assert_eq!(10_f32, root_child1.get_layout_width());
    assert_eq!(100_f32, root_child1.get_layout_height());

    assert_eq!(20_f32, root_child2.get_layout_left());
    assert_eq!(0_f32, root_child2.get_layout_top());
    assert_eq!(10_f32, root_child2.get_layout_width());
    assert_eq!(100_f32, root_child2.get_layout_height());
}