go-charts/legend_test.go
2022-06-21 20:18:27 +08:00

102 lines
6.5 KiB
Go

// 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"
)
func TestNewLegend(t *testing.T) {
assert := assert.New(t)
tests := []struct {
render func(*Painter) ([]byte, error)
result string
}{
{
render: func(p *Painter) ([]byte, error) {
_, err := NewLegendPainter(p, LegendOption{
Data: []string{
"One",
"Two",
"Three",
},
}).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<path d=\"M 184 9\nL 214 9\" style=\"stroke-width:3;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/><circle cx=\"199\" cy=\"9\" r=\"5\" style=\"stroke-width:3;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/><path d=\"\" style=\"stroke-width:3;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/><text x=\"216\" y=\"15\" style=\"stroke-width:0;stroke:none;fill:rgba(70,70,70,1.0);font-size:15.3px;font-family:'Roboto Medium',sans-serif\">One</text><path d=\"M 264 9\nL 294 9\" style=\"stroke-width:3;stroke:rgba(145,204,117,1.0);fill:rgba(145,204,117,1.0)\"/><circle cx=\"279\" cy=\"9\" r=\"5\" style=\"stroke-width:3;stroke:rgba(145,204,117,1.0);fill:rgba(145,204,117,1.0)\"/><path d=\"\" style=\"stroke-width:3;stroke:rgba(145,204,117,1.0);fill:rgba(145,204,117,1.0)\"/><text x=\"296\" y=\"15\" style=\"stroke-width:0;stroke:none;fill:rgba(70,70,70,1.0);font-size:15.3px;font-family:'Roboto Medium',sans-serif\">Two</text><path d=\"M 346 9\nL 376 9\" style=\"stroke-width:3;stroke:rgba(250,200,88,1.0);fill:rgba(250,200,88,1.0)\"/><circle cx=\"361\" cy=\"9\" r=\"5\" style=\"stroke-width:3;stroke:rgba(250,200,88,1.0);fill:rgba(250,200,88,1.0)\"/><path d=\"\" style=\"stroke-width:3;stroke:rgba(250,200,88,1.0);fill:rgba(250,200,88,1.0)\"/><text x=\"378\" y=\"15\" style=\"stroke-width:0;stroke:none;fill:rgba(70,70,70,1.0);font-size:15.3px;font-family:'Roboto Medium',sans-serif\">Three</text></svg>",
},
{
render: func(p *Painter) ([]byte, error) {
_, err := NewLegendPainter(p, LegendOption{
Data: []string{
"One",
"Two",
"Three",
},
Left: PositionLeft,
}).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<path d=\"M 0 9\nL 30 9\" style=\"stroke-width:3;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/><circle cx=\"15\" cy=\"9\" r=\"5\" style=\"stroke-width:3;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/><path d=\"\" style=\"stroke-width:3;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/><text x=\"32\" y=\"15\" style=\"stroke-width:0;stroke:none;fill:rgba(70,70,70,1.0);font-size:15.3px;font-family:'Roboto Medium',sans-serif\">One</text><path d=\"M 80 9\nL 110 9\" style=\"stroke-width:3;stroke:rgba(145,204,117,1.0);fill:rgba(145,204,117,1.0)\"/><circle cx=\"95\" cy=\"9\" r=\"5\" style=\"stroke-width:3;stroke:rgba(145,204,117,1.0);fill:rgba(145,204,117,1.0)\"/><path d=\"\" style=\"stroke-width:3;stroke:rgba(145,204,117,1.0);fill:rgba(145,204,117,1.0)\"/><text x=\"112\" y=\"15\" style=\"stroke-width:0;stroke:none;fill:rgba(70,70,70,1.0);font-size:15.3px;font-family:'Roboto Medium',sans-serif\">Two</text><path d=\"M 162 9\nL 192 9\" style=\"stroke-width:3;stroke:rgba(250,200,88,1.0);fill:rgba(250,200,88,1.0)\"/><circle cx=\"177\" cy=\"9\" r=\"5\" style=\"stroke-width:3;stroke:rgba(250,200,88,1.0);fill:rgba(250,200,88,1.0)\"/><path d=\"\" style=\"stroke-width:3;stroke:rgba(250,200,88,1.0);fill:rgba(250,200,88,1.0)\"/><text x=\"194\" y=\"15\" style=\"stroke-width:0;stroke:none;fill:rgba(70,70,70,1.0);font-size:15.3px;font-family:'Roboto Medium',sans-serif\">Three</text></svg>",
},
{
render: func(p *Painter) ([]byte, error) {
_, err := NewLegendPainter(p, LegendOption{
Data: []string{
"One",
"Two",
"Three",
},
Orient: OrientVertical,
Icon: IconRect,
Left: "10%",
}).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<path d=\"M 60 3\nL 90 3\nL 90 16\nL 60 16\nL 60 3\" style=\"stroke-width:0;stroke:rgba(84,112,198,1.0);fill:rgba(84,112,198,1.0)\"/><text x=\"92\" y=\"15\" style=\"stroke-width:0;stroke:none;fill:rgba(70,70,70,1.0);font-size:15.3px;font-family:'Roboto Medium',sans-serif\">One</text><path d=\"M 60 23\nL 90 23\nL 90 36\nL 60 36\nL 60 23\" style=\"stroke-width:0;stroke:rgba(145,204,117,1.0);fill:rgba(145,204,117,1.0)\"/><text x=\"92\" y=\"35\" style=\"stroke-width:0;stroke:none;fill:rgba(70,70,70,1.0);font-size:15.3px;font-family:'Roboto Medium',sans-serif\">Two</text><path d=\"M 60 43\nL 90 43\nL 90 56\nL 60 56\nL 60 43\" style=\"stroke-width:0;stroke:rgba(250,200,88,1.0);fill:rgba(250,200,88,1.0)\"/><text x=\"92\" y=\"55\" style=\"stroke-width:0;stroke:none;fill:rgba(70,70,70,1.0);font-size:15.3px;font-family:'Roboto Medium',sans-serif\">Three</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)
assert.Nil(err)
assert.Equal(tt.result, string(data))
}
}