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measure_test.go
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measure_test.go
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package flex
import (
"fmt"
"testing"
"github.com/stretchr/testify/assert"
)
func _measure3(node *Node, width float32, widthMode MeasureMode, height float32, heightMode MeasureMode) Size {
measureCount, ok := node.Context.(*int)
if ok {
(*measureCount)++
}
return Size{Width: 10, Height: 10}
}
func _simulate_wrapping_text(node *Node, width float32, widthMode MeasureMode, height float32, heightMode MeasureMode) Size {
if widthMode == MeasureModeUndefined || width >= 68 {
return Size{Width: 68, Height: 16}
}
return Size{Width: 50, Height: 32}
}
func _measure_assert_negative(node *Node, width float32, widthMode MeasureMode, height float32, heightMode MeasureMode) Size {
if width < 0 {
panic(fmt.Sprintf("width is %.2f and should be >= 0", width))
}
if height < 0 {
panic(fmt.Sprintf("height is %.2f should be >= 0, height", height))
}
// EXPECT_GE(width, 0);
//EXPECT_GE(height, 0);
return Size{
Width: 0, Height: 0,
}
}
func TestDont_measure_single_grow_shrink_child(t *testing.T) {
root := NewNode()
root.StyleSetWidth(100)
root.StyleSetHeight(100)
measureCount := 0
rootChild0 := NewNode()
rootChild0.Context = &measureCount
rootChild0.SetMeasureFunc(_measure)
rootChild0.StyleSetFlexGrow(1)
rootChild0.StyleSetFlexShrink(1)
root.InsertChild(rootChild0, 0)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
assert.Equal(t, 0, measureCount)
}
func TestMeasure_absolute_child_with_no_constraints(t *testing.T) {
root := NewNode()
rootChild0 := NewNode()
root.InsertChild(rootChild0, 0)
measureCount := 0
rootChild0Child0 := NewNode()
rootChild0Child0.StyleSetPositionType(PositionTypeAbsolute)
rootChild0Child0.Context = &measureCount
rootChild0Child0.SetMeasureFunc(_measure3)
rootChild0.InsertChild(rootChild0Child0, 0)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
assert.Equal(t, 1, measureCount)
}
func TestDont_measure_when_min_equals_max(t *testing.T) {
root := NewNode()
root.StyleSetAlignItems(AlignFlexStart)
root.StyleSetWidth(100)
root.StyleSetHeight(100)
measureCount := 0
rootChild0 := NewNode()
rootChild0.Context = &measureCount
rootChild0.SetMeasureFunc(_measure3)
rootChild0.StyleSetMinWidth(10)
rootChild0.StyleSetMaxWidth(10)
rootChild0.StyleSetMinHeight(10)
rootChild0.StyleSetMaxHeight(10)
root.InsertChild(rootChild0, 0)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
assert.Equal(t, 0, measureCount)
assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
assertFloatEqual(t, 10, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 10, rootChild0.LayoutGetHeight())
}
func TestDont_measure_when_min_equals_max_percentages(t *testing.T) {
root := NewNode()
root.StyleSetAlignItems(AlignFlexStart)
root.StyleSetWidth(100)
root.StyleSetHeight(100)
measureCount := 0
rootChild0 := NewNode()
rootChild0.Context = &measureCount
rootChild0.SetMeasureFunc(_measure3)
rootChild0.StyleSetMinWidthPercent(10)
rootChild0.StyleSetMaxWidthPercent(10)
rootChild0.StyleSetMinHeightPercent(10)
rootChild0.StyleSetMaxHeightPercent(10)
root.InsertChild(rootChild0, 0)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
assert.Equal(t, 0, measureCount)
assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
assertFloatEqual(t, 10, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 10, rootChild0.LayoutGetHeight())
}
func TestDont_measure_when_min_equals_max_mixed_width_percent(t *testing.T) {
root := NewNode()
root.StyleSetAlignItems(AlignFlexStart)
root.StyleSetWidth(100)
root.StyleSetHeight(100)
measureCount := 0
rootChild0 := NewNode()
rootChild0.Context = &measureCount
rootChild0.SetMeasureFunc(_measure3)
rootChild0.StyleSetMinWidthPercent(10)
rootChild0.StyleSetMaxWidthPercent(10)
rootChild0.StyleSetMinHeight(10)
rootChild0.StyleSetMaxHeight(10)
root.InsertChild(rootChild0, 0)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
assert.Equal(t, 0, measureCount)
assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
assertFloatEqual(t, 10, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 10, rootChild0.LayoutGetHeight())
}
func TestDont_measure_when_min_equals_max_mixed_height_percent(t *testing.T) {
root := NewNode()
root.StyleSetAlignItems(AlignFlexStart)
root.StyleSetWidth(100)
root.StyleSetHeight(100)
measureCount := 0
rootChild0 := NewNode()
rootChild0.Context = &measureCount
rootChild0.SetMeasureFunc(_measure3)
rootChild0.StyleSetMinWidth(10)
rootChild0.StyleSetMaxWidth(10)
rootChild0.StyleSetMinHeightPercent(10)
rootChild0.StyleSetMaxHeightPercent(10)
root.InsertChild(rootChild0, 0)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
assert.Equal(t, 0, measureCount)
assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
assertFloatEqual(t, 10, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 10, rootChild0.LayoutGetHeight())
}
func TestMeasure_enough_size_should_be_in_single_line(t *testing.T) {
root := NewNode()
root.StyleSetWidth(100)
rootChild0 := NewNode()
rootChild0.StyleSetAlignSelf(AlignFlexStart)
rootChild0.SetMeasureFunc(_simulate_wrapping_text)
root.InsertChild(rootChild0, 0)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
assertFloatEqual(t, 68, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 16, rootChild0.LayoutGetHeight())
}
func TestMeasure_not_enough_size_should_wrap(t *testing.T) {
root := NewNode()
root.StyleSetWidth(55)
rootChild0 := NewNode()
rootChild0.StyleSetAlignSelf(AlignFlexStart)
rootChild0.SetMeasureFunc(_simulate_wrapping_text)
root.InsertChild(rootChild0, 0)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
assertFloatEqual(t, 50, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 32, rootChild0.LayoutGetHeight())
}
func TestMeasure_zero_space_should_grow(t *testing.T) {
root := NewNode()
root.StyleSetHeight(200)
root.StyleSetFlexDirection(FlexDirectionColumn)
root.StyleSetFlexGrow(0)
measureCount := 0
rootChild0 := NewNode()
rootChild0.StyleSetFlexDirection(FlexDirectionColumn)
rootChild0.StyleSetPadding(EdgeAll, 100)
rootChild0.Context = &measureCount
rootChild0.SetMeasureFunc(_measure3)
root.InsertChild(rootChild0, 0)
CalculateLayout(root, 282, Undefined, DirectionLTR)
assertFloatEqual(t, 282, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
}
func TestMeasure_flex_direction_row_and_padding(t *testing.T) {
config := NewConfig()
root := NewNodeWithConfig(config)
root.StyleSetFlexDirection(FlexDirectionRow)
root.StyleSetPadding(EdgeLeft, 25)
root.StyleSetPadding(EdgeTop, 25)
root.StyleSetPadding(EdgeRight, 25)
root.StyleSetPadding(EdgeBottom, 25)
root.StyleSetWidth(50)
root.StyleSetHeight(50)
rootChild0 := NewNodeWithConfig(config)
rootChild0.SetMeasureFunc(_simulate_wrapping_text)
root.InsertChild(rootChild0, 0)
rootChild1 := NewNodeWithConfig(config)
rootChild1.StyleSetWidth(5)
rootChild1.StyleSetHeight(5)
root.InsertChild(rootChild1, 1)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
assertFloatEqual(t, 0, root.LayoutGetLeft())
assertFloatEqual(t, 0, root.LayoutGetTop())
assertFloatEqual(t, 50, root.LayoutGetWidth())
assertFloatEqual(t, 50, root.LayoutGetHeight())
assertFloatEqual(t, 25, rootChild0.LayoutGetLeft())
assertFloatEqual(t, 25, rootChild0.LayoutGetTop())
assertFloatEqual(t, 50, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 0, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 75, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 25, rootChild1.LayoutGetTop())
assertFloatEqual(t, 5, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 5, rootChild1.LayoutGetHeight())
}
func TestMeasure_flex_direction_column_and_padding(t *testing.T) {
config := NewConfig()
root := NewNodeWithConfig(config)
root.StyleSetMargin(EdgeTop, 20)
root.StyleSetPadding(EdgeAll, 25)
root.StyleSetWidth(50)
root.StyleSetHeight(50)
rootChild0 := NewNodeWithConfig(config)
rootChild0.SetMeasureFunc(_simulate_wrapping_text)
root.InsertChild(rootChild0, 0)
rootChild1 := NewNodeWithConfig(config)
rootChild1.StyleSetWidth(5)
rootChild1.StyleSetHeight(5)
root.InsertChild(rootChild1, 1)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
assertFloatEqual(t, 0, root.LayoutGetLeft())
assertFloatEqual(t, 20, root.LayoutGetTop())
assertFloatEqual(t, 50, root.LayoutGetWidth())
assertFloatEqual(t, 50, root.LayoutGetHeight())
assertFloatEqual(t, 25, rootChild0.LayoutGetLeft())
assertFloatEqual(t, 25, rootChild0.LayoutGetTop())
assertFloatEqual(t, 0, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 32, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 25, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 57, rootChild1.LayoutGetTop())
assertFloatEqual(t, 5, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 5, rootChild1.LayoutGetHeight())
}
func TestMeasure_flex_direction_row_no_padding(t *testing.T) {
config := NewConfig()
root := NewNodeWithConfig(config)
root.StyleSetFlexDirection(FlexDirectionRow)
root.StyleSetMargin(EdgeTop, 20)
root.StyleSetWidth(50)
root.StyleSetHeight(50)
rootChild0 := NewNodeWithConfig(config)
rootChild0.SetMeasureFunc(_simulate_wrapping_text)
root.InsertChild(rootChild0, 0)
rootChild1 := NewNodeWithConfig(config)
rootChild1.StyleSetWidth(5)
rootChild1.StyleSetHeight(5)
root.InsertChild(rootChild1, 1)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
assertFloatEqual(t, 0, root.LayoutGetLeft())
assertFloatEqual(t, 20, root.LayoutGetTop())
assertFloatEqual(t, 50, root.LayoutGetWidth())
assertFloatEqual(t, 50, root.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
assertFloatEqual(t, 50, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 50, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 50, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild1.LayoutGetTop())
assertFloatEqual(t, 5, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 5, rootChild1.LayoutGetHeight())
}
func TestMeasure_flex_direction_row_no_padding_align_items_flexstart(t *testing.T) {
config := NewConfig()
root := NewNodeWithConfig(config)
root.StyleSetFlexDirection(FlexDirectionRow)
root.StyleSetMargin(EdgeTop, 20)
root.StyleSetWidth(50)
root.StyleSetHeight(50)
root.StyleSetAlignItems(AlignFlexStart)
rootChild0 := NewNodeWithConfig(config)
rootChild0.SetMeasureFunc(_simulate_wrapping_text)
root.InsertChild(rootChild0, 0)
rootChild1 := NewNodeWithConfig(config)
rootChild1.StyleSetWidth(5)
rootChild1.StyleSetHeight(5)
root.InsertChild(rootChild1, 1)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
assertFloatEqual(t, 0, root.LayoutGetLeft())
assertFloatEqual(t, 20, root.LayoutGetTop())
assertFloatEqual(t, 50, root.LayoutGetWidth())
assertFloatEqual(t, 50, root.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
assertFloatEqual(t, 50, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 32, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 50, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild1.LayoutGetTop())
assertFloatEqual(t, 5, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 5, rootChild1.LayoutGetHeight())
}
func TestMeasure_with_fixed_size(t *testing.T) {
config := NewConfig()
root := NewNodeWithConfig(config)
root.StyleSetMargin(EdgeTop, 20)
root.StyleSetPadding(EdgeAll, 25)
root.StyleSetWidth(50)
root.StyleSetHeight(50)
rootChild0 := NewNodeWithConfig(config)
rootChild0.SetMeasureFunc(_simulate_wrapping_text)
rootChild0.StyleSetWidth(10)
rootChild0.StyleSetHeight(10)
root.InsertChild(rootChild0, 0)
rootChild1 := NewNodeWithConfig(config)
rootChild1.StyleSetWidth(5)
rootChild1.StyleSetHeight(5)
root.InsertChild(rootChild1, 1)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
assertFloatEqual(t, 0, root.LayoutGetLeft())
assertFloatEqual(t, 20, root.LayoutGetTop())
assertFloatEqual(t, 50, root.LayoutGetWidth())
assertFloatEqual(t, 50, root.LayoutGetHeight())
assertFloatEqual(t, 25, rootChild0.LayoutGetLeft())
assertFloatEqual(t, 25, rootChild0.LayoutGetTop())
assertFloatEqual(t, 10, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 10, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 25, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 35, rootChild1.LayoutGetTop())
assertFloatEqual(t, 5, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 5, rootChild1.LayoutGetHeight())
}
func TestMeasure_with_flex_shrink(t *testing.T) {
config := NewConfig()
root := NewNodeWithConfig(config)
root.StyleSetMargin(EdgeTop, 20)
root.StyleSetPadding(EdgeAll, 25)
root.StyleSetWidth(50)
root.StyleSetHeight(50)
rootChild0 := NewNodeWithConfig(config)
rootChild0.SetMeasureFunc(_simulate_wrapping_text)
rootChild0.StyleSetFlexShrink(1)
root.InsertChild(rootChild0, 0)
rootChild1 := NewNodeWithConfig(config)
rootChild1.StyleSetWidth(5)
rootChild1.StyleSetHeight(5)
root.InsertChild(rootChild1, 1)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
assertFloatEqual(t, 0, root.LayoutGetLeft())
assertFloatEqual(t, 20, root.LayoutGetTop())
assertFloatEqual(t, 50, root.LayoutGetWidth())
assertFloatEqual(t, 50, root.LayoutGetHeight())
assertFloatEqual(t, 25, rootChild0.LayoutGetLeft())
assertFloatEqual(t, 25, rootChild0.LayoutGetTop())
assertFloatEqual(t, 0, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 0, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 25, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 25, rootChild1.LayoutGetTop())
assertFloatEqual(t, 5, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 5, rootChild1.LayoutGetHeight())
}
func TestMeasure_no_padding(t *testing.T) {
config := NewConfig()
root := NewNodeWithConfig(config)
root.StyleSetMargin(EdgeTop, 20)
root.StyleSetWidth(50)
root.StyleSetHeight(50)
rootChild0 := NewNodeWithConfig(config)
rootChild0.SetMeasureFunc(_simulate_wrapping_text)
rootChild0.StyleSetFlexShrink(1)
root.InsertChild(rootChild0, 0)
rootChild1 := NewNodeWithConfig(config)
rootChild1.StyleSetWidth(5)
rootChild1.StyleSetHeight(5)
root.InsertChild(rootChild1, 1)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
assertFloatEqual(t, 0, root.LayoutGetLeft())
assertFloatEqual(t, 20, root.LayoutGetTop())
assertFloatEqual(t, 50, root.LayoutGetWidth())
assertFloatEqual(t, 50, root.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild0.LayoutGetLeft())
assertFloatEqual(t, 0, rootChild0.LayoutGetTop())
assertFloatEqual(t, 50, rootChild0.LayoutGetWidth())
assertFloatEqual(t, 32, rootChild0.LayoutGetHeight())
assertFloatEqual(t, 0, rootChild1.LayoutGetLeft())
assertFloatEqual(t, 32, rootChild1.LayoutGetTop())
assertFloatEqual(t, 5, rootChild1.LayoutGetWidth())
assertFloatEqual(t, 5, rootChild1.LayoutGetHeight())
}
/*
#if GTEST_HAS_DEATH_TEST
TEST(YogaDeathTest, cannot_add_child_to_node_with_measure_func) {
root := YGNodeNew();
YGroot.SetMeasureFunc(_measure3);
rootChild0 := YGNodeNew();
ASSERT_DEATH(YGroot.InsertChild(rootChild0, 0), "Cannot add child.*");
YGNodeFree(rootChild0);
;
}
TEST(YogaDeathTest, cannot_add_nonnull_measure_func_to_non_leaf_node) {
root := YGNodeNew();
rootChild0 := YGNodeNew();
YGroot.InsertChild(rootChild0, 0);
ASSERT_DEATH(YGroot.SetMeasureFunc(_measure3), "Cannot set measure function.*");
;
}
#endif
*/
func TestCan_nullify_measure_func_on_any_node(t *testing.T) {
root := NewNode()
root.InsertChild(NewNode(), 0)
root.SetMeasureFunc(nil)
assert.True(t, root.Measure == nil)
}
func TestCant_call_negative_measure(t *testing.T) {
config := NewConfig()
root := NewNodeWithConfig(config)
root.StyleSetFlexDirection(FlexDirectionColumn)
root.StyleSetWidth(50)
root.StyleSetHeight(10)
rootChild0 := NewNodeWithConfig(config)
rootChild0.SetMeasureFunc(_measure_assert_negative)
rootChild0.StyleSetMargin(EdgeTop, 20)
root.InsertChild(rootChild0, 0)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
}
func TestCant_call_negative_measure_horizontal(t *testing.T) {
config := NewConfig()
root := NewNodeWithConfig(config)
root.StyleSetFlexDirection(FlexDirectionRow)
root.StyleSetWidth(10)
root.StyleSetHeight(20)
rootChild0 := NewNodeWithConfig(config)
rootChild0.SetMeasureFunc(_measure_assert_negative)
rootChild0.StyleSetMargin(EdgeStart, 20)
root.InsertChild(rootChild0, 0)
CalculateLayout(root, Undefined, Undefined, DirectionLTR)
}