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title_test.go
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title_test.go
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package charts
import (
"strconv"
"testing"
"github.com/stretchr/testify/require"
)
func TestTitleRenderer(t *testing.T) {
t.Parallel()
tests := []struct {
render func(*Painter) ([]byte, error)
result string
}{
{
render: func(p *Painter) ([]byte, error) {
_, err := NewTitlePainter(p, TitleOption{
Text: "title",
Subtext: "subTitle",
Left: "20",
Top: "20",
}).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<text x=\"34\" 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\">title</text><text x=\"20\" y=\"50\" style=\"stroke-width:0;stroke:none;fill:rgba(70,70,70,1.0);font-size:15.3px;font-family:'Roboto Medium',sans-serif\">subTitle</text></svg>",
},
{
render: func(p *Painter) ([]byte, error) {
_, err := NewTitlePainter(p, TitleOption{
Text: "title",
Subtext: "subTitle",
Left: "20%",
Top: "20",
}).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<text x=\"134\" 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\">title</text><text x=\"120\" y=\"50\" style=\"stroke-width:0;stroke:none;fill:rgba(70,70,70,1.0);font-size:15.3px;font-family:'Roboto Medium',sans-serif\">subTitle</text></svg>",
},
{
render: func(p *Painter) ([]byte, error) {
_, err := NewTitlePainter(p, TitleOption{
Text: "title",
Subtext: "subTitle",
Left: PositionRight,
}).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<text x=\"558\" 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\">title</text><text x=\"544\" y=\"30\" style=\"stroke-width:0;stroke:none;fill:rgba(70,70,70,1.0);font-size:15.3px;font-family:'Roboto Medium',sans-serif\">subTitle</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)
require.NoError(t, err)
assertEqualSVG(t, tt.result, string(data))
})
}
}