77 lines
1.5 KiB
Go
77 lines
1.5 KiB
Go
package chart
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import (
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"bytes"
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"strings"
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"testing"
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"github.co/blend/go-sdk/assert"
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"github.com/wcharczuk/go-chart/drawing"
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)
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func TestVectorRendererPath(t *testing.T) {
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assert := assert.New(t)
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vr, err := SVG(100, 100)
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assert.Nil(err)
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typed, isTyped := vr.(*vectorRenderer)
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assert.True(isTyped)
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typed.MoveTo(0, 0)
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typed.LineTo(100, 100)
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typed.LineTo(0, 100)
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typed.Close()
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typed.FillStroke()
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buffer := bytes.NewBuffer([]byte{})
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err = typed.Save(buffer)
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assert.Nil(err)
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raw := string(buffer.Bytes())
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assert.True(strings.HasPrefix(raw, "<svg"))
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assert.True(strings.HasSuffix(raw, "</svg>"))
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}
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func TestVectorRendererMeasureText(t *testing.T) {
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assert := assert.New(t)
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f, err := GetDefaultFont()
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assert.Nil(err)
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vr, err := SVG(100, 100)
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assert.Nil(err)
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vr.SetDPI(DefaultDPI)
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vr.SetFont(f)
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vr.SetFontSize(12.0)
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tb := vr.MeasureText("Ljp")
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assert.Equal(21, tb.Width())
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assert.Equal(15, tb.Height())
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}
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func TestCanvasStyleSVG(t *testing.T) {
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assert := assert.New(t)
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f, err := GetDefaultFont()
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assert.Nil(err)
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set := Style{
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StrokeColor: drawing.ColorWhite,
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StrokeWidth: 5.0,
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FillColor: drawing.ColorWhite,
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FontColor: drawing.ColorWhite,
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Font: f,
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Padding: DefaultBackgroundPadding,
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}
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canvas := &canvas{dpi: DefaultDPI}
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svgString := canvas.styleAsSVG(set)
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assert.NotEmpty(svgString)
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assert.True(strings.Contains(svgString, "stroke:rgba(255,255,255,1.0)"))
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assert.True(strings.Contains(svgString, "stroke-width:5"))
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assert.True(strings.Contains(svgString, "fill:rgba(255,255,255,1.0)"))
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}
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