// 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"
"github.com/wcharczuk/go-chart/v2/drawing"
)
func TestLegendRender(t *testing.T) {
assert := assert.New(t)
newDraw := func() *Draw {
d, _ := NewDraw(DrawOption{
Width: 400,
Height: 300,
})
return d
}
style := chart.Style{
FontSize: 10,
FontColor: drawing.ColorBlack,
}
style.Font, _ = chart.GetDefaultFont()
tests := []struct {
newDraw func() *Draw
newLegend func(*Draw) *legend
box chart.Box
result string
}{
{
newDraw: newDraw,
newLegend: func(d *Draw) *legend {
return NewLegend(d, LegendOption{
Top: "10",
Data: []string{
"Mon",
"Tue",
"Wed",
},
Style: style,
})
},
result: "",
box: chart.Box{
Right: 214,
Bottom: 25,
},
},
{
newDraw: newDraw,
newLegend: func(d *Draw) *legend {
return NewLegend(d, LegendOption{
Top: "10",
Left: PositionRight,
Align: PositionRight,
Data: []string{
"Mon",
"Tue",
"Wed",
},
Style: style,
})
},
result: "",
box: chart.Box{
Right: 400,
Bottom: 25,
},
},
{
newDraw: newDraw,
newLegend: func(d *Draw) *legend {
return NewLegend(d, LegendOption{
Top: "10",
Left: PositionCenter,
Data: []string{
"Mon",
"Tue",
"Wed",
},
Style: style,
})
},
result: "",
box: chart.Box{
Right: 307,
Bottom: 25,
},
},
{
newDraw: newDraw,
newLegend: func(d *Draw) *legend {
return NewLegend(d, LegendOption{
Top: "10",
Left: PositionLeft,
Data: []string{
"Mon",
"Tue",
"Wed",
},
Style: style,
Orient: OrientVertical,
})
},
result: "",
box: chart.Box{
Right: 61,
Bottom: 70,
},
},
{
newDraw: newDraw,
newLegend: func(d *Draw) *legend {
return NewLegend(d, LegendOption{
Top: "10",
Left: "10%",
Data: []string{
"Mon",
"Tue",
"Wed",
},
Style: style,
Orient: OrientVertical,
})
},
box: chart.Box{
Right: 101,
Bottom: 70,
},
result: "",
},
}
for _, tt := range tests {
d := tt.newDraw()
b, err := tt.newLegend(d).Render()
assert.Nil(err)
assert.Equal(tt.box, b)
data, err := d.Bytes()
assert.Nil(err)
assert.NotEmpty(data)
assert.Equal(tt.result, string(data))
}
}