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flex_test.go
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package flex
import "testing"
func TestFlex_basis_flex_grow_column(t *testing.T) {
config := NewConfig()
root := NewNodeWithConfig(config)
root.StyleSetWidth(100)
root.StyleSetHeight(100)
rootChild0 := NewNodeWithConfig(config)
rootChild0.StyleSetFlexGrow(1)
rootChild0.StyleSetFlexBasis(50)
root.InsertChild(rootChild0, 0)
rootChild1 := NewNodeWithConfig(config)
rootChild1.StyleSetFlexGrow(1)
root.InsertChild(rootChild1, 1)
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, 75, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 75, rootChild1.LayoutGetTop())
assertFloatEqual(t, 100, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 25, rootChild1.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, 75, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 75, rootChild1.LayoutGetTop())
assertFloatEqual(t, 100, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 25, rootChild1.LayoutGetHeight())
}
func TestFlex_basis_flex_grow_row(t *testing.T) {
config := NewConfig()
root := NewNodeWithConfig(config)
root.StyleSetFlexDirection(FlexDirectionRow)
root.StyleSetWidth(100)
root.StyleSetHeight(100)
rootChild0 := NewNodeWithConfig(config)
rootChild0.StyleSetFlexGrow(1)
rootChild0.StyleSetFlexBasis(50)
root.InsertChild(rootChild0, 0)
rootChild1 := NewNodeWithConfig(config)
rootChild1.StyleSetFlexGrow(1)
root.InsertChild(rootChild1, 1)
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, 75, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 100, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 75, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild1.LayoutGetTop())
assertFloatEqual(t, 25, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 100, rootChild1.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, 25, rootChild0.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
assertFloatEqual(t, 75, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 100, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild1.LayoutGetTop())
assertFloatEqual(t, 25, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 100, rootChild1.LayoutGetHeight())
}
func TestFlex_basis_flex_shrink_column(t *testing.T) {
config := NewConfig()
root := NewNodeWithConfig(config)
root.StyleSetWidth(100)
root.StyleSetHeight(100)
rootChild0 := NewNodeWithConfig(config)
rootChild0.StyleSetFlexShrink(1)
rootChild0.StyleSetFlexBasis(100)
root.InsertChild(rootChild0, 0)
rootChild1 := NewNodeWithConfig(config)
rootChild1.StyleSetFlexBasis(50)
root.InsertChild(rootChild1, 1)
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, 50, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 50, rootChild1.LayoutGetTop())
assertFloatEqual(t, 100, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 50, rootChild1.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, 50, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 50, rootChild1.LayoutGetTop())
assertFloatEqual(t, 100, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 50, rootChild1.LayoutGetHeight())
}
func TestFlex_basis_flex_shrink_row(t *testing.T) {
config := NewConfig()
root := NewNodeWithConfig(config)
root.StyleSetFlexDirection(FlexDirectionRow)
root.StyleSetWidth(100)
root.StyleSetHeight(100)
rootChild0 := NewNodeWithConfig(config)
rootChild0.StyleSetFlexShrink(1)
rootChild0.StyleSetFlexBasis(100)
root.InsertChild(rootChild0, 0)
rootChild1 := NewNodeWithConfig(config)
rootChild1.StyleSetFlexBasis(50)
root.InsertChild(rootChild1, 1)
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, 50, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 100, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 50, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild1.LayoutGetTop())
assertFloatEqual(t, 50, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 100, rootChild1.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, 50, rootChild0.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
assertFloatEqual(t, 50, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 100, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild1.LayoutGetTop())
assertFloatEqual(t, 50, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 100, rootChild1.LayoutGetHeight())
}
func TestFlex_shrink_to_zero(t *testing.T) {
config := NewConfig()
root := NewNodeWithConfig(config)
root.StyleSetHeight(75)
rootChild0 := NewNodeWithConfig(config)
rootChild0.StyleSetWidth(50)
rootChild0.StyleSetHeight(50)
root.InsertChild(rootChild0, 0)
rootChild1 := NewNodeWithConfig(config)
rootChild1.StyleSetFlexShrink(1)
rootChild1.StyleSetWidth(50)
rootChild1.StyleSetHeight(50)
root.InsertChild(rootChild1, 1)
rootChild2 := NewNodeWithConfig(config)
rootChild2.StyleSetWidth(50)
rootChild2.StyleSetHeight(50)
root.InsertChild(rootChild2, 2)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
assertFloatEqual(t, 0, root.LayoutGetLeft())
assertFloatEqual(t, 0, root.LayoutGetTop())
assertFloatEqual(t, 50, root.LayoutGetWidth())
assertFloatEqual(t, 75, root.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
assertFloatEqual(t, 50, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 50, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 50, rootChild1.LayoutGetTop())
assertFloatEqual(t, 50, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 0, rootChild1.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild2.LayoutGetLeft())
assertFloatEqual(t, 50, rootChild2.LayoutGetTop())
assertFloatEqual(t, 50, rootChild2.LayoutGetWidth())
assertFloatEqual(t, 50, rootChild2.LayoutGetHeight())
CalculateLayout(root, Undefined, Undefined, DirectionRTL)
assertFloatEqual(t, 0, root.LayoutGetLeft())
assertFloatEqual(t, 0, root.LayoutGetTop())
assertFloatEqual(t, 50, root.LayoutGetWidth())
assertFloatEqual(t, 75, root.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
assertFloatEqual(t, 50, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 50, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 50, rootChild1.LayoutGetTop())
assertFloatEqual(t, 50, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 0, rootChild1.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild2.LayoutGetLeft())
assertFloatEqual(t, 50, rootChild2.LayoutGetTop())
assertFloatEqual(t, 50, rootChild2.LayoutGetWidth())
assertFloatEqual(t, 50, rootChild2.LayoutGetHeight())
}
func TestFlex_basis_overrides_main_size(t *testing.T) {
config := NewConfig()
root := NewNodeWithConfig(config)
root.StyleSetWidth(100)
root.StyleSetHeight(100)
rootChild0 := NewNodeWithConfig(config)
rootChild0.StyleSetFlexGrow(1)
rootChild0.StyleSetFlexBasis(50)
rootChild0.StyleSetHeight(20)
root.InsertChild(rootChild0, 0)
rootChild1 := NewNodeWithConfig(config)
rootChild1.StyleSetFlexGrow(1)
rootChild1.StyleSetHeight(10)
root.InsertChild(rootChild1, 1)
rootChild2 := NewNodeWithConfig(config)
rootChild2.StyleSetFlexGrow(1)
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, 60, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 60, rootChild1.LayoutGetTop())
assertFloatEqual(t, 100, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 20, rootChild1.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild2.LayoutGetLeft())
assertFloatEqual(t, 80, rootChild2.LayoutGetTop())
assertFloatEqual(t, 100, rootChild2.LayoutGetWidth())
assertFloatEqual(t, 20, 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, 60, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 60, rootChild1.LayoutGetTop())
assertFloatEqual(t, 100, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 20, rootChild1.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild2.LayoutGetLeft())
assertFloatEqual(t, 80, rootChild2.LayoutGetTop())
assertFloatEqual(t, 100, rootChild2.LayoutGetWidth())
assertFloatEqual(t, 20, rootChild2.LayoutGetHeight())
}
func TestFlex_grow_shrink_at_most(t *testing.T) {
config := NewConfig()
root := NewNodeWithConfig(config)
root.StyleSetWidth(100)
root.StyleSetHeight(100)
rootChild0 := NewNodeWithConfig(config)
root.InsertChild(rootChild0, 0)
rootChild0Child0 := NewNodeWithConfig(config)
rootChild0Child0.StyleSetFlexGrow(1)
rootChild0Child0.StyleSetFlexShrink(1)
rootChild0.InsertChild(rootChild0Child0, 0)
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, 0, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild0Child0.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild0Child0.LayoutGetTop())
assertFloatEqual(t, 100, rootChild0Child0.LayoutGetWidth())
assertFloatEqual(t, 0, rootChild0Child0.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, 0, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild0Child0.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild0Child0.LayoutGetTop())
assertFloatEqual(t, 100, rootChild0Child0.LayoutGetWidth())
assertFloatEqual(t, 0, rootChild0Child0.LayoutGetHeight())
}
func TestFlex_grow_less_than_factor_one(t *testing.T) {
config := NewConfig()
root := NewNodeWithConfig(config)
root.StyleSetWidth(200)
root.StyleSetHeight(500)
rootChild0 := NewNodeWithConfig(config)
rootChild0.StyleSetFlexGrow(0.2)
rootChild0.StyleSetFlexBasis(40)
root.InsertChild(rootChild0, 0)
rootChild1 := NewNodeWithConfig(config)
rootChild1.StyleSetFlexGrow(0.2)
root.InsertChild(rootChild1, 1)
rootChild2 := NewNodeWithConfig(config)
rootChild2.StyleSetFlexGrow(0.4)
root.InsertChild(rootChild2, 2)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
assertFloatEqual(t, 0, root.LayoutGetLeft())
assertFloatEqual(t, 0, root.LayoutGetTop())
assertFloatEqual(t, 200, root.LayoutGetWidth())
assertFloatEqual(t, 500, root.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
assertFloatEqual(t, 200, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 132, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 132, rootChild1.LayoutGetTop())
assertFloatEqual(t, 200, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 92, rootChild1.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild2.LayoutGetLeft())
assertFloatEqual(t, 224, rootChild2.LayoutGetTop())
assertFloatEqual(t, 200, rootChild2.LayoutGetWidth())
assertFloatEqual(t, 184, rootChild2.LayoutGetHeight())
CalculateLayout(root, Undefined, Undefined, DirectionRTL)
assertFloatEqual(t, 0, root.LayoutGetLeft())
assertFloatEqual(t, 0, root.LayoutGetTop())
assertFloatEqual(t, 200, root.LayoutGetWidth())
assertFloatEqual(t, 500, root.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
assertFloatEqual(t, 200, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 132, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 132, rootChild1.LayoutGetTop())
assertFloatEqual(t, 200, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 92, rootChild1.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild2.LayoutGetLeft())
assertFloatEqual(t, 224, rootChild2.LayoutGetTop())
assertFloatEqual(t, 200, rootChild2.LayoutGetWidth())
assertFloatEqual(t, 184, rootChild2.LayoutGetHeight())
}