60 lines
1.7 KiB
Go
60 lines
1.7 KiB
Go
package chart
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import (
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"testing"
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"github.com/wcharczuk/go-chart/v2/testutil"
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)
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func TestTextWrapWord(t *testing.T) {
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// replaced new assertions helper
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r, err := PNG(1024, 1024)
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testutil.AssertNil(t, err)
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f, err := GetDefaultFont()
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testutil.AssertNil(t, 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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testutil.AssertNotEmpty(t, output)
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testutil.AssertLen(t, 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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testutil.AssertTrue(t, lineBox.Width() < 100, line+": "+lineBox.String())
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}
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testutil.AssertEqual(t, "this is", output[0])
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testutil.AssertEqual(t, "a test", output[1])
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testutil.AssertEqual(t, "string", output[2])
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output = Text.WrapFitWord(r, "foo", 100, basicTextStyle)
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testutil.AssertLen(t, output, 1)
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testutil.AssertEqual(t, "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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testutil.AssertLen(t, 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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testutil.AssertLen(t, output, 8)
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}
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func TestTextWrapRune(t *testing.T) {
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// replaced new assertions helper
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r, err := PNG(1024, 1024)
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testutil.AssertNil(t, err)
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f, err := GetDefaultFont()
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testutil.AssertNil(t, 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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testutil.AssertNotEmpty(t, output)
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testutil.AssertLen(t, output, 2)
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testutil.AssertEqual(t, "this is a t", output[0])
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testutil.AssertEqual(t, "est string", output[1])
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}
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