go-chart/text_test.go

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2016-07-29 19:36:29 -04:00
package chart
import (
"testing"
assert "github.com/blendlabs/go-assert"
)
func TestTextWrapWord(t *testing.T) {
assert := assert.New(t)
r, err := PNG(1024, 1024)
assert.Nil(err)
f, err := GetDefaultFont()
assert.Nil(err)
basicTextStyle := Style{Font: f, FontSize: 24}
output := Text.WrapFitWord(r, "this is a test string", 100, basicTextStyle)
assert.NotEmpty(output)
assert.Len(output, 3)
for _, line := range output {
basicTextStyle.WriteToRenderer(r)
lineBox := r.MeasureText(line)
assert.True(lineBox.Width() < 100, line+": "+lineBox.String())
}
output = Text.WrapFitWord(r, "foo", 100, basicTextStyle)
assert.Len(output, 1)
assert.Equal("foo", output[0])
}