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mark_line_test.go
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// MIT License
// Copyright (c) 2022 Tree Xie
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
package charts
import (
"testing"
"github.com/stretchr/testify/assert"
"github.com/wcharczuk/go-chart/v2/drawing"
)
func TestMarkLine(t *testing.T) {
assert := assert.New(t)
tests := []struct {
render func(*Painter) ([]byte, error)
result string
}{
{
render: func(p *Painter) ([]byte, error) {
markLine := NewMarkLinePainter(p)
series := NewSeriesFromValues([]float64{
1,
2,
3,
})
series.MarkLine = NewMarkLine(
SeriesMarkDataTypeMax,
SeriesMarkDataTypeAverage,
SeriesMarkDataTypeMin,
)
markLine.Add(markLineRenderOption{
FillColor: drawing.ColorBlack,
FontColor: drawing.ColorBlack,
StrokeColor: drawing.ColorBlack,
Series: series,
Range: NewRange(AxisRangeOption{
Painter: p,
Min: 0,
Max: 5,
Size: p.Height(),
DivideCount: 6,
}),
})
_, err := markLine.Render()
if 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<circle cx=\"23\" cy=\"272\" r=\"3\" style=\"stroke-width:1;stroke:rgba(0,0,0,1.0);fill:rgba(0,0,0,1.0)\"/><path stroke-dasharray=\"4.0, 2.0\" d=\"\" style=\"stroke-width:1;stroke:rgba(0,0,0,1.0);fill:rgba(0,0,0,1.0)\"/><path stroke-dasharray=\"4.0, 2.0\" d=\"M 29 272\nL 562 272\" style=\"stroke-width:1;stroke:rgba(0,0,0,1.0);fill:rgba(0,0,0,1.0)\"/><path stroke-dasharray=\"4.0, 2.0\" d=\"M 562 267\nL 578 272\nL 562 277\nL 567 272\nL 562 267\" style=\"stroke-width:1;stroke:rgba(0,0,0,1.0);fill:rgba(0,0,0,1.0)\"/><text x=\"580\" y=\"276\" style=\"stroke-width:0;stroke:none;fill:rgba(0,0,0,1.0);font-size:12.8px;font-family:'Roboto Medium',sans-serif\">3</text><circle cx=\"23\" cy=\"308\" r=\"3\" style=\"stroke-width:1;stroke:rgba(0,0,0,1.0);fill:rgba(0,0,0,1.0)\"/><path stroke-dasharray=\"4.0, 2.0\" d=\"\" style=\"stroke-width:1;stroke:rgba(0,0,0,1.0);fill:rgba(0,0,0,1.0)\"/><path stroke-dasharray=\"4.0, 2.0\" d=\"M 29 308\nL 562 308\" style=\"stroke-width:1;stroke:rgba(0,0,0,1.0);fill:rgba(0,0,0,1.0)\"/><path stroke-dasharray=\"4.0, 2.0\" d=\"M 562 303\nL 578 308\nL 562 313\nL 567 308\nL 562 303\" style=\"stroke-width:1;stroke:rgba(0,0,0,1.0);fill:rgba(0,0,0,1.0)\"/><text x=\"580\" y=\"312\" style=\"stroke-width:0;stroke:none;fill:rgba(0,0,0,1.0);font-size:12.8px;font-family:'Roboto Medium',sans-serif\">2</text><circle cx=\"23\" cy=\"344\" r=\"3\" style=\"stroke-width:1;stroke:rgba(0,0,0,1.0);fill:rgba(0,0,0,1.0)\"/><path stroke-dasharray=\"4.0, 2.0\" d=\"\" style=\"stroke-width:1;stroke:rgba(0,0,0,1.0);fill:rgba(0,0,0,1.0)\"/><path stroke-dasharray=\"4.0, 2.0\" d=\"M 29 344\nL 562 344\" style=\"stroke-width:1;stroke:rgba(0,0,0,1.0);fill:rgba(0,0,0,1.0)\"/><path stroke-dasharray=\"4.0, 2.0\" d=\"M 562 339\nL 578 344\nL 562 349\nL 567 344\nL 562 339\" style=\"stroke-width:1;stroke:rgba(0,0,0,1.0);fill:rgba(0,0,0,1.0)\"/><text x=\"580\" y=\"348\" style=\"stroke-width:0;stroke:none;fill:rgba(0,0,0,1.0);font-size:12.8px;font-family:'Roboto Medium',sans-serif\">1</text></svg>",
},
}
for _, tt := range tests {
p, err := NewPainter(PainterOptions{
Type: ChartOutputSVG,
Width: 600,
Height: 400,
}, PainterThemeOption(defaultTheme))
assert.Nil(err)
data, err := tt.render(p.Child(PainterPaddingOption(Box{
Left: 20,
Top: 20,
Right: 20,
Bottom: 20,
})))
assert.Nil(err)
assert.Equal(tt.result, string(data))
}
}