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legend_test.go
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legend_test.go
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// MIT License
// Copyright (c) 2021 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 (
"bytes"
"testing"
"github.com/stretchr/testify/assert"
"github.com/wcharczuk/go-chart/v2"
)
func TestLegendCustomize(t *testing.T) {
assert := assert.New(t)
series := GetSeries([]Series{
{
Name: "chrome",
},
{
Name: "edge",
},
}, chart.TickPositionBetweenTicks, "")
tests := []struct {
align string
svg string
}{
{
align: LegendAlignLeft,
svg: "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"800\" height=\"600\">\\n<path d=\"M 404 100\nL 532 100\nL 532 110\nL 404 110\nL 404 100\" style=\"stroke-width:0;stroke:rgba(51,51,51,1.0);fill:none\"/><path d=\"M 404 107\nL 429 107\" style=\"stroke-width:2;stroke:rgba(84,112,198,1.0);fill:none\"/><circle cx=\"416\" cy=\"107\" r=\"5\" style=\"stroke-width:2;stroke:rgba(84,112,198,1.0);fill:rgba(255,255,255,1.0)\"/><path d=\"\" style=\"stroke-width:2;stroke:rgba(84,112,198,1.0);fill:rgba(255,255,255,1.0)\"/><text x=\"434\" y=\"110\" style=\"stroke-width:0;stroke:none;fill:rgba(51,51,51,1.0);font-size:10.2px;font-family:'Roboto Medium',sans-serif\">chrome</text><path d=\"M 489 107\nL 514 107\" style=\"stroke-width:2;stroke:rgba(145,204,117,1.0);fill:rgba(255,255,255,1.0)\"/><circle cx=\"501\" cy=\"107\" r=\"5\" style=\"stroke-width:2;stroke:rgba(145,204,117,1.0);fill:rgba(255,255,255,1.0)\"/><path d=\"\" style=\"stroke-width:2;stroke:rgba(145,204,117,1.0);fill:rgba(255,255,255,1.0)\"/><text x=\"519\" y=\"110\" style=\"stroke-width:0;stroke:none;fill:rgba(51,51,51,1.0);font-size:10.2px;font-family:'Roboto Medium',sans-serif\">edge</text></svg>",
},
{
align: LegendAlignRight,
svg: "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"800\" height=\"600\">\\n<path d=\"M 404 100\nL 532 100\nL 532 110\nL 404 110\nL 404 100\" style=\"stroke-width:0;stroke:rgba(51,51,51,1.0);fill:none\"/><text x=\"404\" y=\"110\" style=\"stroke-width:0;stroke:none;fill:rgba(51,51,51,1.0);font-size:10.2px;font-family:'Roboto Medium',sans-serif\">chrome</text><path d=\"M 444 107\nL 469 107\" style=\"stroke-width:2;stroke:rgba(84,112,198,1.0);fill:none\"/><circle cx=\"456\" cy=\"107\" r=\"5\" style=\"stroke-width:2;stroke:rgba(84,112,198,1.0);fill:rgba(255,255,255,1.0)\"/><path d=\"\" style=\"stroke-width:2;stroke:rgba(84,112,198,1.0);fill:rgba(255,255,255,1.0)\"/><text x=\"494\" y=\"110\" style=\"stroke-width:0;stroke:none;fill:rgba(51,51,51,1.0);font-size:10.2px;font-family:'Roboto Medium',sans-serif\">edge</text><path d=\"M 522 107\nL 547 107\" style=\"stroke-width:2;stroke:rgba(145,204,117,1.0);fill:rgba(255,255,255,1.0)\"/><circle cx=\"534\" cy=\"107\" r=\"5\" style=\"stroke-width:2;stroke:rgba(145,204,117,1.0);fill:rgba(255,255,255,1.0)\"/><path d=\"\" style=\"stroke-width:2;stroke:rgba(145,204,117,1.0);fill:rgba(255,255,255,1.0)\"/></svg>",
},
}
for _, tt := range tests {
r, err := chart.SVG(800, 600)
assert.Nil(err)
fn := LegendCustomize(series, LegendOption{
Align: tt.align,
IconDraw: DefaultLegendIconDraw,
Padding: chart.Box{
Left: 100,
Top: 100,
},
})
fn(r, chart.NewBox(11, 47, 784, 373), chart.Style{
Font: chart.StyleTextDefaults().Font,
})
buf := bytes.Buffer{}
err = r.Save(&buf)
assert.Nil(err)
assert.Equal(tt.svg, buf.String())
}
}