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line_test.go
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line_test.go
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package canvas_test
import (
"image/color"
"testing"
"fyne.io/fyne/v2"
"fyne.io/fyne/v2/canvas"
"github.com/stretchr/testify/assert"
)
func TestLine_MinSize(t *testing.T) {
line := canvas.NewLine(color.Black)
min := line.MinSize()
assert.True(t, min.Width > 0)
assert.True(t, min.Height > 0)
}
func TestLine_Move(t *testing.T) {
line := canvas.NewLine(color.Black)
line.Resize(fyne.NewSize(10, 10))
assert.Equal(t, fyne.NewPos(0, 0), line.Position1)
assert.Equal(t, fyne.NewPos(10, 10), line.Position2)
line.Move(fyne.NewPos(5, 5))
assert.Equal(t, fyne.NewPos(5, 5), line.Position1)
assert.Equal(t, fyne.NewPos(15, 15), line.Position2)
// rotate
line.Position1 = fyne.NewPos(0, 10)
line.Position2 = fyne.NewPos(10, 0)
line.Move(fyne.NewPos(10, 10))
assert.Equal(t, fyne.NewPos(10, 20), line.Position1)
assert.Equal(t, fyne.NewPos(20, 10), line.Position2)
}
func TestLine_Resize(t *testing.T) {
line := canvas.NewLine(color.Black)
line.Resize(fyne.NewSize(10, 0))
size := line.Size()
assert.Equal(t, float32(10), size.Width)
assert.Equal(t, float32(0), size.Height)
// rotate
line.Position1 = fyne.NewPos(0, 10)
line.Position2 = fyne.NewPos(10, 0)
line.Resize(fyne.NewSize(20, 20))
assert.Equal(t, fyne.NewPos(0, 20), line.Position1)
assert.Equal(t, fyne.NewPos(20, 0), line.Position2)
}
func TestLine_StrokeColor(t *testing.T) {
c := color.White
line := canvas.NewLine(c)
assert.Equal(t, c, line.StrokeColor)
}