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view_test.go
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view_test.go
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package furex
import (
"image"
"testing"
"github.com/stretchr/testify/require"
)
func TestAddChildUpdateRemove(t *testing.T) {
view := &View{
Width: 100,
Height: 100,
Direction: Row,
Justify: JustifyStart,
AlignItems: AlignItemStart,
}
mock := &mockHandler{}
child := &View{
Width: 10,
Height: 10,
Handler: mock,
}
require.Equal(t, view, view.AddChild(child))
require.True(t, view.isDirty)
view.Update()
require.True(t, mock.IsUpdated)
view.Draw(nil)
require.Equal(t, image.Rect(0, 0, 10, 10), mock.Frame)
require.True(t, view.RemoveChild(child))
require.Equal(t, 0, len(view.children))
}
func TestUpdateWithSize(t *testing.T) {
view := &View{
Width: 100,
Height: 100,
Direction: Row,
Justify: JustifyCenter,
AlignItems: AlignItemCenter,
}
mock := &mockHandler{}
child := &View{
Width: 10,
Height: 10,
Handler: mock,
}
require.Equal(t, view, view.AddChild(child))
view.UpdateWithSize(200, 200)
require.True(t, mock.IsUpdated)
view.Draw(nil)
require.Equal(t, image.Rect(95, 95, 105, 105), mock.Frame)
}
func TestAddToParent(t *testing.T) {
root := &View{
Width: 100,
Height: 100,
Direction: Row,
Justify: JustifyStart,
AlignItems: AlignItemStart,
}
mock := &mockHandler{}
child := (&View{
Width: 10,
Height: 10,
Handler: mock,
})
require.Equal(t, child, child.AddTo(root))
root.Update()
require.True(t, mock.IsUpdated)
}
func TestAddChild(t *testing.T) {
view := &View{
Width: 100,
Height: 100,
Direction: Row,
Justify: JustifyStart,
AlignItems: AlignItemStart,
}
mocks := [2]mockHandler{}
require.Equal(t, view, view.AddChild(
&View{
Width: 10,
Height: 10,
Handler: &mocks[0],
},
&View{
Width: 10,
Height: 10,
Handler: &mocks[1],
},
))
view.Update()
require.True(t, mocks[0].IsUpdated)
require.True(t, mocks[1].IsUpdated)
view.Draw(nil)
require.Equal(t, image.Rect(0, 0, 10, 10), mocks[0].Frame)
require.Equal(t, image.Rect(10, 0, 20, 10), mocks[1].Frame)
view.RemoveAll()
require.Equal(t, 0, len(view.children))
}