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|
package main
import (
"bytes"
"errors"
"io"
"testing"
)
type vector struct {
name string
in string
out string
width int
reflow bool
ratio int
}
var vectors = []vector{
{
name: "simple",
in: `long line that exceeds margin by many words
`,
width: 30,
reflow: false,
ratio: 50,
out: `long line that exceeds margin
by many words
`,
},
{
name: "two-paragraphs",
in: `this is one long paragraph
this is another long one
`,
width: 20,
reflow: false,
ratio: 50,
out: `this is one long
paragraph
this is another
long one
`,
},
{
name: "reflow",
in: `this is one long paragraph
this is another long one
`,
width: 20,
reflow: true,
ratio: 50,
out: `this is one long
paragraph this is
another long one
`,
},
{
name: "quotes",
in: `Let's play with quotes:
>> Hi there how are you doing?
> Great thanks
How rude.
>> Fantastic. Let's go wrap some words.
`,
width: 20,
reflow: false,
ratio: 50,
out: `Let's play with
quotes:
>> Hi there how are
>> you doing?
> Great thanks
How rude.
>> Fantastic. Let's
>> go wrap some
>> words.
`,
},
{
name: "ascii-art",
in: `This is a nice drawing, isn't it?
+-------------------+
| foobaz |
+-------------------+
|
|
+-------------------+
| foobar |
+-------------------+
`,
width: 15,
ratio: 50,
reflow: true,
out: `This is a nice
drawing, isn't
it?
+-------------------+
| foobaz |
+-------------------+
|
|
+-------------------+
| foobar |
+-------------------+
`,
},
{
name: "list-items",
in: `Shopping list:
- milk
- chocolate
- cookies (please, with nuts)
`,
width: 20,
reflow: false,
ratio: 50,
out: `Shopping list:
- milk
- chocolate
- cookies
(please, with
nuts)
`,
},
{
name: "list-items-reflow",
in: `Shopping list:
* milk
* chocolate
* cookies
(please,
with nuts)
`,
width: 100,
reflow: true,
ratio: 30,
out: `Shopping list:
* milk
* chocolate
* cookies (please, with nuts)
`,
},
{
name: "long-url",
in: `Please follow this ugly link:
http://foobaz.org/xapapzolmkdmldfk-fldskjflsk-cisjoij/onoes.jsp?xxx=2&yyy=3
`,
width: 20,
reflow: true,
ratio: 50,
out: `Please follow this
ugly link:
http://foobaz.org/xapapzolmkdmldfk-fldskjflsk-cisjoij/onoes.jsp?xxx=2&yyy=3
`,
},
{
name: "format=flowed",
in: "Oh, \nI'm \nso \nhip \nI \nuse \nformat=flowed.\n",
width: 30,
reflow: false,
ratio: 50,
out: "Oh, I'm so hip I use\nformat=flowed.\n",
},
{
name: "non-ascii",
in: `Lorem ççççç ççççç ççç ççççç çç ççç ççççç çççççççç ççç çç ççççç ççççççççççç ççççç
Lorem жжжжж жжжжж жжж жжжжж жж жжж жжжжж жжжжжжжж жжж жж жжжжж жжжжжжжжжжж жжжжж жжжжжжжж
`,
width: 40,
reflow: false,
ratio: 50,
out: `Lorem ççççç ççççç ççç ççççç çç ççç
ççççç çççççççç ççç çç ççççç ççççççççççç
ççççç
Lorem жжжжж жжжжж жжж жжжжж жж жжж
жжжжж жжжжжжжж жжж жж жжжжж жжжжжжжжжжж
жжжжж жжжжжжжж
`,
},
}
func TestWrap(t *testing.T) {
for _, vec := range vectors {
t.Run(vec.name, func(t *testing.T) {
r := bytes.NewReader([]byte(vec.in))
var buf bytes.Buffer
err := wrap(r, &buf, vec.width, vec.reflow, vec.ratio)
if err != nil && !errors.Is(err, io.EOF) {
t.Fatalf("[%s]: %v", vec.name, err)
}
if buf.String() != vec.out {
t.Errorf("[%s] invalid format:\n%q\nexpected\n%q",
vec.name, buf.String(), vec.out)
}
})
}
}
|
