github.com/richardwilkes/toolbox@v1.121.0/txt/wrap_test.go (about)

     1  // Copyright (c) 2016-2024 by Richard A. Wilkes. All rights reserved.
     2  //
     3  // This Source Code Form is subject to the terms of the Mozilla Public
     4  // License, version 2.0. If a copy of the MPL was not distributed with
     5  // this file, You can obtain one at http://mozilla.org/MPL/2.0/.
     6  //
     7  // This Source Code Form is "Incompatible With Secondary Licenses", as
     8  // defined by the Mozilla Public License, version 2.0.
     9  
    10  package txt_test
    11  
    12  import (
    13  	"testing"
    14  
    15  	"github.com/richardwilkes/toolbox/check"
    16  	"github.com/richardwilkes/toolbox/txt"
    17  )
    18  
    19  func TestWrap(t *testing.T) {
    20  	table := []struct {
    21  		Prefix string
    22  		Text   string
    23  		Out    string
    24  		Max    int
    25  	}{
    26  		{Prefix: "// ", Text: "short", Max: 78, Out: "// short"},
    27  		{Prefix: "// ", Text: "some text that is longer", Max: 12, Out: "// some text\n// that is\n// longer"},
    28  		{Prefix: "// ", Text: "some text\nwith embedded line feeds", Max: 16, Out: "// some text\n// with embedded\n// line feeds"},
    29  		{Prefix: "", Text: "some text that is longer", Max: 12, Out: "some text\nthat is\nlonger"},
    30  		{Prefix: "", Text: "some text that is longer", Max: 4, Out: "some\ntext\nthat\nis\nlonger"},
    31  		{Prefix: "", Text: "some text that is longer, yep", Max: 4, Out: "some\ntext\nthat\nis\nlonger,\nyep"},
    32  		{Prefix: "", Text: "some text\nwith embedded line feeds", Max: 16, Out: "some text\nwith embedded\nline feeds"},
    33  	}
    34  	for i, one := range table {
    35  		check.Equal(t, one.Out, txt.Wrap(one.Prefix, one.Text, one.Max), "#%d", i)
    36  	}
    37  }