flex_direction_test.go

package flex

import "testing"

func TestFlex_direction_column_no_height(t *testing.T) {
	config := NewConfig()
	root := NewNodeWithConfig(config)
	root.StyleSetWidth(100)

	rootChild0 := NewNodeWithConfig(config)
	rootChild0.StyleSetHeight(10)
	root.InsertChild(rootChild0, 0)

	rootChild1 := NewNodeWithConfig(config)
	rootChild1.StyleSetHeight(10)
	root.InsertChild(rootChild1, 1)

	rootChild2 := NewNodeWithConfig(config)
	rootChild2.StyleSetHeight(10)
	root.InsertChild(rootChild2, 2)
	CalculateLayout(root, Undefined, Undefined, DirectionLTR)

	assertFloatEqual(t, 0, root.LayoutGetLeft())
	assertFloatEqual(t, 0, root.LayoutGetTop())
	assertFloatEqual(t, 100, root.LayoutGetWidth())
	assertFloatEqual(t, 30, root.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
	assertFloatEqual(t, 100, rootChild0.LayoutGetWidth())
	assertFloatEqual(t, 10, rootChild0.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
	assertFloatEqual(t, 10, rootChild1.LayoutGetTop())
	assertFloatEqual(t, 100, rootChild1.LayoutGetWidth())
	assertFloatEqual(t, 10, rootChild1.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild2.LayoutGetLeft())
	assertFloatEqual(t, 20, rootChild2.LayoutGetTop())
	assertFloatEqual(t, 100, rootChild2.LayoutGetWidth())
	assertFloatEqual(t, 10, rootChild2.LayoutGetHeight())

	CalculateLayout(root, Undefined, Undefined, DirectionRTL)

	assertFloatEqual(t, 0, root.LayoutGetLeft())
	assertFloatEqual(t, 0, root.LayoutGetTop())
	assertFloatEqual(t, 100, root.LayoutGetWidth())
	assertFloatEqual(t, 30, root.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
	assertFloatEqual(t, 100, rootChild0.LayoutGetWidth())
	assertFloatEqual(t, 10, rootChild0.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
	assertFloatEqual(t, 10, rootChild1.LayoutGetTop())
	assertFloatEqual(t, 100, rootChild1.LayoutGetWidth())
	assertFloatEqual(t, 10, rootChild1.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild2.LayoutGetLeft())
	assertFloatEqual(t, 20, rootChild2.LayoutGetTop())
	assertFloatEqual(t, 100, rootChild2.LayoutGetWidth())
	assertFloatEqual(t, 10, rootChild2.LayoutGetHeight())
}

func TestFlex_direction_row_no_width(t *testing.T) {
	config := NewConfig()

	root := NewNodeWithConfig(config)
	root.StyleSetFlexDirection(FlexDirectionRow)
	root.StyleSetHeight(100)

	rootChild0 := NewNodeWithConfig(config)
	rootChild0.StyleSetWidth(10)
	root.InsertChild(rootChild0, 0)

	rootChild1 := NewNodeWithConfig(config)
	rootChild1.StyleSetWidth(10)
	root.InsertChild(rootChild1, 1)

	rootChild2 := NewNodeWithConfig(config)
	rootChild2.StyleSetWidth(10)
	root.InsertChild(rootChild2, 2)
	CalculateLayout(root, Undefined, Undefined, DirectionLTR)

	assertFloatEqual(t, 0, root.LayoutGetLeft())
	assertFloatEqual(t, 0, root.LayoutGetTop())
	assertFloatEqual(t, 30, root.LayoutGetWidth())
	assertFloatEqual(t, 100, root.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
	assertFloatEqual(t, 10, rootChild0.LayoutGetWidth())
	assertFloatEqual(t, 100, rootChild0.LayoutGetHeight())

	assertFloatEqual(t, 10, rootChild1.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild1.LayoutGetTop())
	assertFloatEqual(t, 10, rootChild1.LayoutGetWidth())
	assertFloatEqual(t, 100, rootChild1.LayoutGetHeight())

	assertFloatEqual(t, 20, rootChild2.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild2.LayoutGetTop())
	assertFloatEqual(t, 10, rootChild2.LayoutGetWidth())
	assertFloatEqual(t, 100, rootChild2.LayoutGetHeight())

	CalculateLayout(root, Undefined, Undefined, DirectionRTL)

	assertFloatEqual(t, 0, root.LayoutGetLeft())
	assertFloatEqual(t, 0, root.LayoutGetTop())
	assertFloatEqual(t, 30, root.LayoutGetWidth())
	assertFloatEqual(t, 100, root.LayoutGetHeight())

	assertFloatEqual(t, 20, rootChild0.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
	assertFloatEqual(t, 10, rootChild0.LayoutGetWidth())
	assertFloatEqual(t, 100, rootChild0.LayoutGetHeight())

	assertFloatEqual(t, 10, rootChild1.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild1.LayoutGetTop())
	assertFloatEqual(t, 10, rootChild1.LayoutGetWidth())
	assertFloatEqual(t, 100, rootChild1.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild2.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild2.LayoutGetTop())
	assertFloatEqual(t, 10, rootChild2.LayoutGetWidth())
	assertFloatEqual(t, 100, rootChild2.LayoutGetHeight())
}

func TestFlex_direction_column(t *testing.T) {
	config := NewConfig()

	root := NewNodeWithConfig(config)
	root.StyleSetWidth(100)
	root.StyleSetHeight(100)

	rootChild0 := NewNodeWithConfig(config)
	rootChild0.StyleSetHeight(10)
	root.InsertChild(rootChild0, 0)

	rootChild1 := NewNodeWithConfig(config)
	rootChild1.StyleSetHeight(10)
	root.InsertChild(rootChild1, 1)

	rootChild2 := NewNodeWithConfig(config)
	rootChild2.StyleSetHeight(10)
	root.InsertChild(rootChild2, 2)
	CalculateLayout(root, Undefined, Undefined, DirectionLTR)

	assertFloatEqual(t, 0, root.LayoutGetLeft())
	assertFloatEqual(t, 0, root.LayoutGetTop())
	assertFloatEqual(t, 100, root.LayoutGetWidth())
	assertFloatEqual(t, 100, root.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
	assertFloatEqual(t, 100, rootChild0.LayoutGetWidth())
	assertFloatEqual(t, 10, rootChild0.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
	assertFloatEqual(t, 10, rootChild1.LayoutGetTop())
	assertFloatEqual(t, 100, rootChild1.LayoutGetWidth())
	assertFloatEqual(t, 10, rootChild1.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild2.LayoutGetLeft())
	assertFloatEqual(t, 20, rootChild2.LayoutGetTop())
	assertFloatEqual(t, 100, rootChild2.LayoutGetWidth())
	assertFloatEqual(t, 10, rootChild2.LayoutGetHeight())

	CalculateLayout(root, Undefined, Undefined, DirectionRTL)

	assertFloatEqual(t, 0, root.LayoutGetLeft())
	assertFloatEqual(t, 0, root.LayoutGetTop())
	assertFloatEqual(t, 100, root.LayoutGetWidth())
	assertFloatEqual(t, 100, root.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
	assertFloatEqual(t, 100, rootChild0.LayoutGetWidth())
	assertFloatEqual(t, 10, rootChild0.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
	assertFloatEqual(t, 10, rootChild1.LayoutGetTop())
	assertFloatEqual(t, 100, rootChild1.LayoutGetWidth())
	assertFloatEqual(t, 10, rootChild1.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild2.LayoutGetLeft())
	assertFloatEqual(t, 20, rootChild2.LayoutGetTop())
	assertFloatEqual(t, 100, rootChild2.LayoutGetWidth())
	assertFloatEqual(t, 10, rootChild2.LayoutGetHeight())
}

func TestFlex_direction_row(t *testing.T) {
	config := NewConfig()

	root := NewNodeWithConfig(config)
	root.StyleSetFlexDirection(FlexDirectionRow)
	root.StyleSetWidth(100)
	root.StyleSetHeight(100)

	rootChild0 := NewNodeWithConfig(config)
	rootChild0.StyleSetWidth(10)
	root.InsertChild(rootChild0, 0)

	rootChild1 := NewNodeWithConfig(config)
	rootChild1.StyleSetWidth(10)
	root.InsertChild(rootChild1, 1)

	rootChild2 := NewNodeWithConfig(config)
	rootChild2.StyleSetWidth(10)
	root.InsertChild(rootChild2, 2)
	CalculateLayout(root, Undefined, Undefined, DirectionLTR)

	assertFloatEqual(t, 0, root.LayoutGetLeft())
	assertFloatEqual(t, 0, root.LayoutGetTop())
	assertFloatEqual(t, 100, root.LayoutGetWidth())
	assertFloatEqual(t, 100, root.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
	assertFloatEqual(t, 10, rootChild0.LayoutGetWidth())
	assertFloatEqual(t, 100, rootChild0.LayoutGetHeight())

	assertFloatEqual(t, 10, rootChild1.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild1.LayoutGetTop())
	assertFloatEqual(t, 10, rootChild1.LayoutGetWidth())
	assertFloatEqual(t, 100, rootChild1.LayoutGetHeight())

	assertFloatEqual(t, 20, rootChild2.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild2.LayoutGetTop())
	assertFloatEqual(t, 10, rootChild2.LayoutGetWidth())
	assertFloatEqual(t, 100, rootChild2.LayoutGetHeight())

	CalculateLayout(root, Undefined, Undefined, DirectionRTL)

	assertFloatEqual(t, 0, root.LayoutGetLeft())
	assertFloatEqual(t, 0, root.LayoutGetTop())
	assertFloatEqual(t, 100, root.LayoutGetWidth())
	assertFloatEqual(t, 100, root.LayoutGetHeight())

	assertFloatEqual(t, 90, rootChild0.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
	assertFloatEqual(t, 10, rootChild0.LayoutGetWidth())
	assertFloatEqual(t, 100, rootChild0.LayoutGetHeight())

	assertFloatEqual(t, 80, rootChild1.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild1.LayoutGetTop())
	assertFloatEqual(t, 10, rootChild1.LayoutGetWidth())
	assertFloatEqual(t, 100, rootChild1.LayoutGetHeight())

	assertFloatEqual(t, 70, rootChild2.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild2.LayoutGetTop())
	assertFloatEqual(t, 10, rootChild2.LayoutGetWidth())
	assertFloatEqual(t, 100, rootChild2.LayoutGetHeight())
}

func TestFlex_direction_column_reverse(t *testing.T) {
	config := NewConfig()

	root := NewNodeWithConfig(config)
	root.StyleSetFlexDirection(FlexDirectionColumnReverse)
	root.StyleSetWidth(100)
	root.StyleSetHeight(100)

	rootChild0 := NewNodeWithConfig(config)
	rootChild0.StyleSetHeight(10)
	root.InsertChild(rootChild0, 0)

	rootChild1 := NewNodeWithConfig(config)
	rootChild1.StyleSetHeight(10)
	root.InsertChild(rootChild1, 1)

	rootChild2 := NewNodeWithConfig(config)
	rootChild2.StyleSetHeight(10)
	root.InsertChild(rootChild2, 2)
	CalculateLayout(root, Undefined, Undefined, DirectionLTR)

	assertFloatEqual(t, 0, root.LayoutGetLeft())
	assertFloatEqual(t, 0, root.LayoutGetTop())
	assertFloatEqual(t, 100, root.LayoutGetWidth())
	assertFloatEqual(t, 100, root.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
	assertFloatEqual(t, 90, rootChild0.LayoutGetTop())
	assertFloatEqual(t, 100, rootChild0.LayoutGetWidth())
	assertFloatEqual(t, 10, rootChild0.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
	assertFloatEqual(t, 80, rootChild1.LayoutGetTop())
	assertFloatEqual(t, 100, rootChild1.LayoutGetWidth())
	assertFloatEqual(t, 10, rootChild1.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild2.LayoutGetLeft())
	assertFloatEqual(t, 70, rootChild2.LayoutGetTop())
	assertFloatEqual(t, 100, rootChild2.LayoutGetWidth())
	assertFloatEqual(t, 10, rootChild2.LayoutGetHeight())

	CalculateLayout(root, Undefined, Undefined, DirectionRTL)

	assertFloatEqual(t, 0, root.LayoutGetLeft())
	assertFloatEqual(t, 0, root.LayoutGetTop())
	assertFloatEqual(t, 100, root.LayoutGetWidth())
	assertFloatEqual(t, 100, root.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
	assertFloatEqual(t, 90, rootChild0.LayoutGetTop())
	assertFloatEqual(t, 100, rootChild0.LayoutGetWidth())
	assertFloatEqual(t, 10, rootChild0.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
	assertFloatEqual(t, 80, rootChild1.LayoutGetTop())
	assertFloatEqual(t, 100, rootChild1.LayoutGetWidth())
	assertFloatEqual(t, 10, rootChild1.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild2.LayoutGetLeft())
	assertFloatEqual(t, 70, rootChild2.LayoutGetTop())
	assertFloatEqual(t, 100, rootChild2.LayoutGetWidth())
	assertFloatEqual(t, 10, rootChild2.LayoutGetHeight())
}

func TestFlex_direction_row_reverse(t *testing.T) {
	config := NewConfig()

	root := NewNodeWithConfig(config)
	root.StyleSetFlexDirection(FlexDirectionRowReverse)
	root.StyleSetWidth(100)
	root.StyleSetHeight(100)

	rootChild0 := NewNodeWithConfig(config)
	rootChild0.StyleSetWidth(10)
	root.InsertChild(rootChild0, 0)

	rootChild1 := NewNodeWithConfig(config)
	rootChild1.StyleSetWidth(10)
	root.InsertChild(rootChild1, 1)

	rootChild2 := NewNodeWithConfig(config)
	rootChild2.StyleSetWidth(10)
	root.InsertChild(rootChild2, 2)
	CalculateLayout(root, Undefined, Undefined, DirectionLTR)

	assertFloatEqual(t, 0, root.LayoutGetLeft())
	assertFloatEqual(t, 0, root.LayoutGetTop())
	assertFloatEqual(t, 100, root.LayoutGetWidth())
	assertFloatEqual(t, 100, root.LayoutGetHeight())

	assertFloatEqual(t, 90, rootChild0.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
	assertFloatEqual(t, 10, rootChild0.LayoutGetWidth())
	assertFloatEqual(t, 100, rootChild0.LayoutGetHeight())

	assertFloatEqual(t, 80, rootChild1.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild1.LayoutGetTop())
	assertFloatEqual(t, 10, rootChild1.LayoutGetWidth())
	assertFloatEqual(t, 100, rootChild1.LayoutGetHeight())

	assertFloatEqual(t, 70, rootChild2.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild2.LayoutGetTop())
	assertFloatEqual(t, 10, rootChild2.LayoutGetWidth())
	assertFloatEqual(t, 100, rootChild2.LayoutGetHeight())

	CalculateLayout(root, Undefined, Undefined, DirectionRTL)

	assertFloatEqual(t, 0, root.LayoutGetLeft())
	assertFloatEqual(t, 0, root.LayoutGetTop())
	assertFloatEqual(t, 100, root.LayoutGetWidth())
	assertFloatEqual(t, 100, root.LayoutGetHeight())

	assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
	assertFloatEqual(t, 10, rootChild0.LayoutGetWidth())
	assertFloatEqual(t, 100, rootChild0.LayoutGetHeight())

	assertFloatEqual(t, 10, rootChild1.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild1.LayoutGetTop())
	assertFloatEqual(t, 10, rootChild1.LayoutGetWidth())
	assertFloatEqual(t, 100, rootChild1.LayoutGetHeight())

	assertFloatEqual(t, 20, rootChild2.LayoutGetLeft())
	assertFloatEqual(t, 0, rootChild2.LayoutGetTop())
	assertFloatEqual(t, 10, rootChild2.LayoutGetWidth())
	assertFloatEqual(t, 100, rootChild2.LayoutGetHeight())
}