61 lines
1.5 KiB
Go
61 lines
1.5 KiB
Go
package chart
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import (
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"testing"
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assert "github.com/blendlabs/go-assert"
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)
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func TestTextWrapWord(t *testing.T) {
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assert := assert.New(t)
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r, err := PNG(1024, 1024)
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assert.Nil(err)
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f, err := GetDefaultFont()
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assert.Nil(err)
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basicTextStyle := Style{Font: f, FontSize: 24}
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output := Text.WrapFitWord(r, "this is a test string", 100, basicTextStyle)
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assert.NotEmpty(output)
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assert.Len(output, 3)
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for _, line := range output {
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basicTextStyle.WriteToRenderer(r)
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lineBox := r.MeasureText(line)
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assert.True(lineBox.Width() < 100, line+": "+lineBox.String())
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}
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assert.Equal("this is", output[0])
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assert.Equal("a test", output[1])
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assert.Equal("string", output[2])
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output = Text.WrapFitWord(r, "foo", 100, basicTextStyle)
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assert.Len(output, 1)
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assert.Equal("foo", output[0])
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// test that it handles newlines.
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output = Text.WrapFitWord(r, "this\nis\na\ntest\nstring", 100, basicTextStyle)
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assert.Len(output, 5)
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// test that it handles newlines and long lines.
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output = Text.WrapFitWord(r, "this\nis\na\ntest\nstring that is very long", 100, basicTextStyle)
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assert.Len(output, 8)
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}
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func TestTextWrapRune(t *testing.T) {
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assert := assert.New(t)
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r, err := PNG(1024, 1024)
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assert.Nil(err)
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f, err := GetDefaultFont()
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assert.Nil(err)
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basicTextStyle := Style{Font: f, FontSize: 24}
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output := Text.WrapFitRune(r, "this is a test string", 150, basicTextStyle)
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assert.NotEmpty(output)
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assert.Len(output, 2)
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assert.Equal("this is a t", output[0])
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assert.Equal("est string", output[1])
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}
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