package chart import ( "bytes" "strings" "testing" "github.com/blendlabs/go-assert" ) func TestVectorRendererPath(t *testing.T) { assert := assert.New(t) vr, err := SVG(100, 100) assert.Nil(err) typed, isTyped := vr.(*vectorRenderer) assert.True(isTyped) typed.MoveTo(0, 0) typed.LineTo(100, 100) typed.LineTo(0, 100) typed.Close() typed.FillStroke() buffer := bytes.NewBuffer([]byte{}) err = typed.Save(buffer) assert.Nil(err) raw := string(buffer.Bytes()) assert.True(strings.HasPrefix(raw, "")) } func TestVectorRendererMeasureText(t *testing.T) { assert := assert.New(t) f, err := GetDefaultFont() assert.Nil(err) vr, err := SVG(100, 100) assert.Nil(err) vr.SetDPI(DefaultDPI) vr.SetFont(f) vr.SetFontSize(12.0) w, h := vr.MeasureText("Ljp") assert.Equal(26, w) assert.Equal(15, h) }