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mark_point_test.go
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/
mark_point_test.go
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package charts
import (
"strconv"
"testing"
"github.com/stretchr/testify/require"
"github.com/wcharczuk/go-chart/v2/drawing"
)
func TestMarkPoint(t *testing.T) {
t.Parallel()
tests := []struct {
render func(*Painter) ([]byte, error)
result string
}{
{
render: func(p *Painter) ([]byte, error) {
series := NewSeriesFromValues([]float64{1, 2, 3})
series.MarkPoint = NewMarkPoint(SeriesMarkDataTypeMax)
markPoint := NewMarkPointPainter(p)
markPoint.Add(markPointRenderOption{
FillColor: drawing.ColorBlack,
Series: series,
Points: []Point{
{X: 10, Y: 10},
{X: 30, Y: 30},
{X: 50, Y: 50},
},
})
if _, err := markPoint.Render(); err != nil {
return nil, err
}
return p.Bytes()
},
result: "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"600\" height=\"400\">\\n<path d=\"M 67 62\nA 14 14 330.00 1 1 73 62\nL 70 49\nZ\" style=\"stroke-width:0;stroke:none;fill:rgba(0,0,0,1.0)\"/><path d=\"M 56 49\nQ70,84 84,49\nZ\" style=\"stroke-width:0;stroke:none;fill:rgba(0,0,0,1.0)\"/><text x=\"66\" y=\"54\" style=\"stroke-width:0;stroke:none;fill:rgba(238,238,238,1.0);font-size:12.8px;font-family:'Roboto Medium',sans-serif\">3</text></svg>",
},
}
for i, tt := range tests {
t.Run(strconv.Itoa(i), func(t *testing.T) {
p, err := NewPainter(PainterOptions{
OutputFormat: ChartOutputSVG,
Width: 600,
Height: 400,
}, PainterThemeOption(GetTheme(ThemeLight)))
require.NoError(t, err)
data, err := tt.render(p.Child(PainterPaddingOption(Box{
Left: 20,
Top: 20,
Right: 20,
Bottom: 20,
})))
require.NoError(t, err)
assertEqualSVG(t, tt.result, string(data))
})
}
}