feat(performance): improve core undenting performance by around 20-30x

Previously we relied heavily on regexp to filter out and grab all
indentation white space, and then to strip away indentation shared
across all lines. This was reasonably fast. However I wanted to see if I
could make it faster by manually iterating over the input. Turns out
doing so makes is around 20 times faster.

The code is a lot more complicated though, but I'll attempt to break it
down. There's three main phases to it:

1. Iterate over every character of the input to locate all
   line-feed (\n) characters, storing their indexes in a integer slice.
2. Iterate over the list of life-feed indexes, and for each line-feed,
   scan forward until a non-whitespace character is found, counting how
   many whitespace characters we encountered directly after the
   life-feed. If the number is lower than our previously lowest number
   of leading whitespace characters, store that as the new lowest
   number.
3. Now that we know the lowest number of leading whitespace characters
   common across every line of the input, we can iterate over the list
   of life-feed indexes again. This time to build the final output, but
   reading all characters from the life-feed index + whitespace number,
   until the next life-feed character, or end of input.

Overall this approach yields a 15-20x speed improvement over the old
method.

Benchmarks, before:

    goos: darwin
    goarch: amd64
    pkg: github.com/jimeh/undent
    cpu: Intel(R) Core(TM) i7-1068NG7 CPU @ 2.30GHz
    BenchmarkBytes/empty-8          78280611                15.18 ns/op
    BenchmarkBytes/single-line-8     2361297               515.1 ns/op
    BenchmarkBytes/single-line_indented-8             317440              3618 ns/op
    BenchmarkBytes/multi-line-8                       630370              1920 ns/op
    BenchmarkBytes/multi-line_space_indented-8        156266              7664 ns/op
    BenchmarkBytes/multi-line_space_indented_without_any_leading_line-breaks-8                155672              8168 ns/op
    BenchmarkBytes/multi-line_space_indented_with_leading_line-breaks-8                       144655              8165 ns/op
    BenchmarkBytes/multi-line_tab_indented-8                                                  206425              5462 ns/op
    BenchmarkBytes/multi-line_tab_indented_without_any_leading_line-breaks-8                  223620              5542 ns/op
    BenchmarkBytes/multi-line_tab_indented_with_leading_line-breaks-8                         208132              5857 ns/op
    BenchmarkBytes/multi-line_tab_indented_with_tabs_and_spaces_after_indent-8                199480              5687 ns/op
    BenchmarkBytes/multi-line_space_indented_with_blank_lines-8                               148402              8072 ns/op
    BenchmarkBytes/multi-line_tab_indented_with_blank_lines-8                                 200929              5691 ns/op
    BenchmarkBytes/multi-line_space_indented_with_random_indentation-8                        197412              6515 ns/op
    BenchmarkBytes/multi-line_tab_indented_with_random_indentation-8                          281493              4272 ns/op
    BenchmarkBytes/long_block_of_text-8                                                         9894            115752 ns/op
    BenchmarkString/empty-8                                                                 100000000               12.75 ns/op
    BenchmarkString/single-line-8                                                            2224165               529.0 ns/op
    BenchmarkString/single-line_indented-8                                                    314088              3784 ns/op
    BenchmarkString/multi-line-8                                                              645804              1968 ns/op
    BenchmarkString/multi-line_space_indented-8                                               149310              8103 ns/op
    BenchmarkString/multi-line_space_indented_without_any_leading_line-breaks-8               145390              8496 ns/op
    BenchmarkString/multi-line_space_indented_with_leading_line-breaks-8                      145579              8161 ns/op
    BenchmarkString/multi-line_tab_indented-8                                                 223596              5487 ns/op
    BenchmarkString/multi-line_tab_indented_without_any_leading_line-breaks-8                 214842              5641 ns/op
    BenchmarkString/multi-line_tab_indented_with_leading_line-breaks-8                        209067              5685 ns/op
    BenchmarkString/multi-line_tab_indented_with_tabs_and_spaces_after_indent-8               210307              5584 ns/op
    BenchmarkString/multi-line_space_indented_with_blank_lines-8                              133948              9280 ns/op
    BenchmarkString/multi-line_tab_indented_with_blank_lines-8                                178296              5769 ns/op
    BenchmarkString/multi-line_space_indented_with_random_indentation-8                       206030              6222 ns/op
    BenchmarkString/multi-line_tab_indented_with_random_indentation-8                         236450              4259 ns/op
    BenchmarkString/long_block_of_text-8                                                       10000            113065 ns/op
    PASS
    ok      github.com/jimeh/undent 44.800s

Benchmarks, after:

    goos: darwin
    goarch: amd64
    pkg: github.com/jimeh/undent
    cpu: Intel(R) Core(TM) i7-1068NG7 CPU @ 2.30GHz
    BenchmarkBytes/empty-8          596493562                2.074 ns/op
    BenchmarkBytes/single-line-8    20044598                60.64 ns/op
    BenchmarkBytes/single-line_indented-8           12449749                84.43 ns/op
    BenchmarkBytes/multi-line-8                      5086376               232.3 ns/op
    BenchmarkBytes/multi-line_space_indented-8       3077774               400.4 ns/op
    BenchmarkBytes/multi-line_space_indented_without_any_leading_line-breaks-8               3011881               386.6 ns/op
    BenchmarkBytes/multi-line_space_indented_with_leading_line-breaks-8                      3034299               402.9 ns/op
    BenchmarkBytes/multi-line_tab_indented-8                                                 4500271               266.2 ns/op
    BenchmarkBytes/multi-line_tab_indented_without_any_leading_line-breaks-8                 4355886               277.5 ns/op
    BenchmarkBytes/multi-line_tab_indented_with_leading_line-breaks-8                        3758012               289.5 ns/op
    BenchmarkBytes/multi-line_tab_indented_with_tabs_and_spaces_after_indent-8               4425787               271.9 ns/op
    BenchmarkBytes/multi-line_space_indented_with_blank_lines-8                              3035809               412.2 ns/op
    BenchmarkBytes/multi-line_tab_indented_with_blank_lines-8                                3771512               334.2 ns/op
    BenchmarkBytes/multi-line_space_indented_with_random_indentation-8                       4461404               275.6 ns/op
    BenchmarkBytes/multi-line_tab_indented_with_random_indentation-8                         6960343               174.6 ns/op
    BenchmarkBytes/long_block_of_text-8                                                       315788              3776 ns/op
    BenchmarkString/empty-8                                                                 338024905                3.761 ns/op
    BenchmarkString/single-line-8                                                           20067831                59.28 ns/op
    BenchmarkString/single-line_indented-8                                                  13826002                88.16 ns/op
    BenchmarkString/multi-line-8                                                             4451938               261.6 ns/op
    BenchmarkString/multi-line_space_indented-8                                              2911797               411.1 ns/op
    BenchmarkString/multi-line_space_indented_without_any_leading_line-breaks-8              2699631               416.5 ns/op
    BenchmarkString/multi-line_space_indented_with_leading_line-breaks-8                     2737174               436.3 ns/op
    BenchmarkString/multi-line_tab_indented-8                                                4208000               304.6 ns/op
    BenchmarkString/multi-line_tab_indented_without_any_leading_line-breaks-8                4029422               295.8 ns/op
    BenchmarkString/multi-line_tab_indented_with_leading_line-breaks-8                       3929960               310.3 ns/op
    BenchmarkString/multi-line_tab_indented_with_tabs_and_spaces_after_indent-8              3978992               292.5 ns/op
    BenchmarkString/multi-line_space_indented_with_blank_lines-8                             2829766               428.5 ns/op
    BenchmarkString/multi-line_tab_indented_with_blank_lines-8                               3788185               304.8 ns/op
    BenchmarkString/multi-line_space_indented_with_random_indentation-8                      4104337               279.4 ns/op
    BenchmarkString/multi-line_tab_indented_with_random_indentation-8                        7092417               177.4 ns/op
    BenchmarkString/long_block_of_text-8                                                      283140              4398 ns/op
    PASS
    ok      github.com/jimeh/undent 47.252s
This commit is contained in:
2021-02-21 01:40:01 +00:00
parent 98946bf286
commit 6a2254e918
2 changed files with 342 additions and 32 deletions

105
undent.go
View File

@@ -5,15 +5,85 @@ package undent
import (
"fmt"
"io"
"regexp"
)
var matcher = regexp.MustCompile(`(?m)^([ \t]*)(?:\S)`)
const (
tab = 9
lf = 10
spc = 32
)
// Bytes removes leading indentation/white-space from given string and returns
// it as a byte slice.
func Bytes(s string) []byte {
return []byte(String(s))
if len(s) == 0 {
return []byte{}
}
// find line feeds
lfs := []int{}
if s[0] != lf {
lfs = append(lfs, -1)
}
for i := 0; i < len(s); i++ {
if s[i] == lf {
lfs = append(lfs, i)
}
}
// find smallest indent relative to each line-feed
min := 99999999999
count := 0
for i := 0; i < len(lfs); i++ {
offset := lfs[i]
end := len(s) - 1
if i+1 < len(lfs) {
end = lfs[i+1]
}
if offset+1 >= end {
continue
}
indent := 0
lineSeek:
for n := offset + 1; n < end && indent < min; n++ {
switch s[n] {
case spc, tab:
indent++
default:
break lineSeek
}
}
if indent < min {
min = indent
}
if indent > 0 {
count++
}
}
// extract each line without indentation
out := make([]byte, 0, len(s)-(min*count))
for i := 0; i < len(lfs); i++ {
offset := lfs[i] + 1
end := len(s)
if i+1 < len(lfs) {
end = lfs[i+1] + 1
}
if offset+min < end {
out = append(out, s[offset+min:end]...)
} else if offset < end {
out = append(out, s[offset:end]...)
}
}
return out
}
// Bytesf removes leading indentation/white-space from given format string
@@ -25,34 +95,7 @@ func Bytesf(format string, a ...interface{}) []byte {
// String removes leading indentation/white-space from given string.
func String(s string) string {
if len(s) > 0 && s[0] == '\n' {
s = s[1:]
}
matches := matcher.FindAllString(s, -1)
if len(matches) == 0 {
return s
}
index := 0
length := len(matches[0])
for i, s := range matches[1:] {
l := len(s)
if l < length {
index = i + 1
length = l
}
}
if length <= 1 {
return s
}
indent := matches[index][0 : length-1]
return regexp.MustCompile(
`(?m)^`+regexp.QuoteMeta(indent),
).ReplaceAllLiteralString(s, "")
return string(Bytes(s))
}
// Stringf removes leading indentation/white-space from given format string

View File

@@ -59,6 +59,21 @@ var stringTestCases = []struct {
"foo": [
"bar"
]
}`,
},
{
name: "multi-line space indented without any leading line-breaks",
s: ` {
"hello": "world",
"foo": [
"bar"
]
}`,
want: `{
"hello": "world",
"foo": [
"bar"
]
}`,
},
{
@@ -98,7 +113,22 @@ var stringTestCases = []struct {
}`,
},
{
name: "multi-line tab indented with leading line breaks",
name: "multi-line tab indented without any leading line-breaks",
s: ` {
"hello": "world",
"foo": [
"bar"
]
}`,
want: `{
"hello": "world",
"foo": [
"bar"
]
}`,
},
{
name: "multi-line tab indented with leading line-breaks",
s: `
@@ -197,6 +227,108 @@ world
foo
bar`,
},
{
name: "long block of text",
s: `
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc
ornare, tellus vel luctus tristique, ipsum ante varius mauris, non
hendrerit tellus urna quis ex. Donec efficitur arcu sed iaculis
lobortis. Phasellus facilisis vitae mi quis accumsan. Suspendisse
rhoncus viverra odio ultricies rhoncus. Cras laoreet tortor
vestibulum pharetra luctus. Vivamus sit amet volutpat elit.
Suspendisse feugiat lectus id arcu sollicitudin tincidunt. Duis ut
sem auctor orci sodales varius in ac odio. Nullam finibus odio at
lacus tristique malesuada.
Morbi nisl nulla, euismod eu enim in, tincidunt varius turpis. Morbi
ullamcorper tortor mi, ut aliquam metus posuere vel. Etiam vel dui
at quam placerat sollicitudin. Proin aliquam justo vitae mauris
gravida porta. Praesent hendrerit egestas ligula, faucibus tincidunt
tortor aliquet at. Ut luctus vehicula arcu eget cursus. Suspendisse
eget enim mollis, condimentum lacus eu, viverra nulla. Aenean vel
sapien eget enim convallis accumsan. Donec dictum ullamcorper leo
placerat sollicitudin. Pellentesque habitant morbi tristique
senectus et netus et malesuada fames ac turpis egestas. Vestibulum
volutpat mattis est, a feugiat purus feugiat at. Quisque at velit ut
mauris convallis sodales a et erat. Mauris condimentum augue sit
amet arcu sodales, aliquet ultrices ipsum tempor. Donec scelerisque
mi ligula, vel volutpat velit posuere a. Sed faucibus dui pulvinar
lorem commodo egestas. In facilisis suscipit lacus non suscipit.
Nunc dictum est nulla, a rhoncus mi posuere id. Morbi at tempus
augue. Quisque ac nibh auctor velit auctor placerat id non eros.
Nulla condimentum quam id risus suscipit, ut fermentum mauris
lacinia. Vestibulum suscipit rutrum ex, sed vulputate nisi tempus
ultricies. Sed id ante pretium, accumsan sapien eget, malesuada
quam. Phasellus quis commodo enim. Vivamus in purus ac lorem ornare
posuere non eu quam. Sed arcu tortor, gravida quis fringilla nec,
ultricies et sem. Pellentesque arcu enim, tempor id nisl at, rhoncus
efficitur sem. Ut quis placerat quam. Donec maximus a risus sed
posuere. Curabitur pretium a diam non aliquet.
Class aptent taciti sociosqu ad litora torquent per conubia nostra,
per inceptos himenaeos. Morbi volutpat felis leo, vel ultrices orci
bibendum ac. Integer eu mattis urna. Donec dictum vehicula
fermentum. Pellentesque a rutrum ipsum. Donec ultricies elit purus,
eget viverra tellus tristique sed. In hac habitasse platea dictumst.
Duis elementum semper elit, sit amet rhoncus lacus dictum ac. Nunc
pretium enim ac urna efficitur, eget facilisis enim interdum.
Vivamus vel lectus lacus. Praesent vestibulum vel ligula eget
cursus. Quisque eu dignissim erat. Quisque maximus arcu eu turpis
pulvinar egestas. Nam aliquet neque sed tellus finibus mollis.
Phasellus consequat nibh nec ornare egestas. Donec at pellentesque
lorem.`,
want: `Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc
ornare, tellus vel luctus tristique, ipsum ante varius mauris, non
hendrerit tellus urna quis ex. Donec efficitur arcu sed iaculis
lobortis. Phasellus facilisis vitae mi quis accumsan. Suspendisse
rhoncus viverra odio ultricies rhoncus. Cras laoreet tortor
vestibulum pharetra luctus. Vivamus sit amet volutpat elit.
Suspendisse feugiat lectus id arcu sollicitudin tincidunt. Duis ut
sem auctor orci sodales varius in ac odio. Nullam finibus odio at
lacus tristique malesuada.
Morbi nisl nulla, euismod eu enim in, tincidunt varius turpis. Morbi
ullamcorper tortor mi, ut aliquam metus posuere vel. Etiam vel dui
at quam placerat sollicitudin. Proin aliquam justo vitae mauris
gravida porta. Praesent hendrerit egestas ligula, faucibus tincidunt
tortor aliquet at. Ut luctus vehicula arcu eget cursus. Suspendisse
eget enim mollis, condimentum lacus eu, viverra nulla. Aenean vel
sapien eget enim convallis accumsan. Donec dictum ullamcorper leo
placerat sollicitudin. Pellentesque habitant morbi tristique
senectus et netus et malesuada fames ac turpis egestas. Vestibulum
volutpat mattis est, a feugiat purus feugiat at. Quisque at velit ut
mauris convallis sodales a et erat. Mauris condimentum augue sit
amet arcu sodales, aliquet ultrices ipsum tempor. Donec scelerisque
mi ligula, vel volutpat velit posuere a. Sed faucibus dui pulvinar
lorem commodo egestas. In facilisis suscipit lacus non suscipit.
Nunc dictum est nulla, a rhoncus mi posuere id. Morbi at tempus
augue. Quisque ac nibh auctor velit auctor placerat id non eros.
Nulla condimentum quam id risus suscipit, ut fermentum mauris
lacinia. Vestibulum suscipit rutrum ex, sed vulputate nisi tempus
ultricies. Sed id ante pretium, accumsan sapien eget, malesuada
quam. Phasellus quis commodo enim. Vivamus in purus ac lorem ornare
posuere non eu quam. Sed arcu tortor, gravida quis fringilla nec,
ultricies et sem. Pellentesque arcu enim, tempor id nisl at, rhoncus
efficitur sem. Ut quis placerat quam. Donec maximus a risus sed
posuere. Curabitur pretium a diam non aliquet.
Class aptent taciti sociosqu ad litora torquent per conubia nostra,
per inceptos himenaeos. Morbi volutpat felis leo, vel ultrices orci
bibendum ac. Integer eu mattis urna. Donec dictum vehicula
fermentum. Pellentesque a rutrum ipsum. Donec ultricies elit purus,
eget viverra tellus tristique sed. In hac habitasse platea dictumst.
Duis elementum semper elit, sit amet rhoncus lacus dictum ac. Nunc
pretium enim ac urna efficitur, eget facilisis enim interdum.
Vivamus vel lectus lacus. Praesent vestibulum vel ligula eget
cursus. Quisque eu dignissim erat. Quisque maximus arcu eu turpis
pulvinar egestas. Nam aliquet neque sed tellus finibus mollis.
Phasellus consequat nibh nec ornare egestas. Donec at pellentesque
lorem.`,
},
}
var stringfTestCases = []struct {
@@ -254,6 +386,22 @@ var stringfTestCases = []struct {
"foo": [
42
]
}`,
},
{
name: "multi-line space indented without any leading line-breaks",
s: ` {
"hello": "%s",
"foo": [
%d
]
}`,
a: []interface{}{"world", 42},
want: `{
"hello": "world",
"foo": [
42
]
}`,
},
{
@@ -292,6 +440,22 @@ var stringfTestCases = []struct {
"foo": [
42
]
}`,
},
{
name: "multi-line tab indented without any leading line-breaks",
s: ` {
"hello": "%s",
"foo": [
%d
]
}`,
a: []interface{}{"world", 42},
want: `{
"hello": "world",
"foo": [
42
]
}`,
},
{
@@ -400,6 +564,109 @@ world
foo
42`,
},
{
name: "long block of text",
s: `
Lorem %s dolor sit amet, consectetur adipiscing elit. Nunc
ornare, tellus vel luctus tristique, ipsum ante varius mauris, non
hendrerit tellus urna quis ex. %s efficitur arcu sed iaculis
lobortis. Phasellus facilisis vitae mi quis accumsan. Suspendisse
rhoncus viverra odio ultricies rhoncus. Cras laoreet tortor
vestibulum pharetra luctus. Vivamus sit amet volutpat elit.
Suspendisse feugiat lectus id arcu sollicitudin tincidunt. Duis ut
sem auctor orci sodales varius in ac odio. Nullam finibus odio at
lacus tristique malesuada.
Morbi nisl nulla, euismod eu enim in, tincidunt varius turpis. Morbi
ullamcorper tortor mi, ut aliquam metus posuere vel. Etiam vel dui
at quam placerat sollicitudin. Proin aliquam justo vitae mauris
gravida porta. Praesent hendrerit egestas ligula, faucibus tincidunt
tortor aliquet at. Ut luctus vehicula arcu eget cursus. Suspendisse
eget enim mollis, condimentum lacus eu, viverra nulla. Aenean vel
sapien eget enim convallis accumsan. Donec dictum ullamcorper leo
placerat sollicitudin. Pellentesque habitant morbi tristique
senectus et netus et malesuada fames ac turpis egestas. Vestibulum
volutpat mattis est, a feugiat purus feugiat at. Quisque at velit ut
mauris convallis sodales a et erat. Mauris condimentum augue sit
amet arcu sodales, aliquet ultrices ipsum tempor. Donec scelerisque
mi ligula, vel volutpat velit posuere a. Sed faucibus dui pulvinar
lorem commodo egestas. In facilisis suscipit lacus non suscipit.
Nunc dictum est nulla, a rhoncus mi posuere id. Morbi at tempus
augue. Quisque ac nibh auctor velit auctor placerat id non eros.
Nulla condimentum quam id risus suscipit, ut fermentum mauris
lacinia. Vestibulum suscipit rutrum ex, sed vulputate nisi tempus
ultricies. Sed id ante pretium, accumsan sapien eget, malesuada
quam. Phasellus quis commodo enim. Vivamus in purus ac lorem ornare
posuere non eu quam. Sed arcu tortor, gravida quis fringilla nec,
ultricies et sem. Pellentesque arcu enim, tempor id nisl at, rhoncus
efficitur sem. Ut quis placerat quam. Donec maximus a risus sed
posuere. Curabitur pretium a diam non aliquet.
Class aptent taciti sociosqu ad litora torquent per conubia nostra,
per inceptos himenaeos. Morbi volutpat felis leo, vel ultrices orci
bibendum ac. Integer eu mattis urna. Donec dictum vehicula
fermentum. Pellentesque a rutrum ipsum. Donec ultricies elit purus,
eget viverra tellus tristique sed. In hac habitasse platea dictumst.
Duis elementum semper elit, sit amet rhoncus lacus dictum ac. Nunc
pretium enim ac urna efficitur, eget facilisis enim interdum.
Vivamus vel lectus lacus. Praesent vestibulum vel ligula eget
cursus. Quisque eu dignissim erat. Quisque maximus arcu eu turpis
pulvinar egestas. Nam aliquet neque sed tellus finibus mollis.
Phasellus consequat nibh nec ornare egestas. Donec at pellentesque
lorem.`,
a: []interface{}{"ipsum", "Donec"},
want: `Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc
ornare, tellus vel luctus tristique, ipsum ante varius mauris, non
hendrerit tellus urna quis ex. Donec efficitur arcu sed iaculis
lobortis. Phasellus facilisis vitae mi quis accumsan. Suspendisse
rhoncus viverra odio ultricies rhoncus. Cras laoreet tortor
vestibulum pharetra luctus. Vivamus sit amet volutpat elit.
Suspendisse feugiat lectus id arcu sollicitudin tincidunt. Duis ut
sem auctor orci sodales varius in ac odio. Nullam finibus odio at
lacus tristique malesuada.
Morbi nisl nulla, euismod eu enim in, tincidunt varius turpis. Morbi
ullamcorper tortor mi, ut aliquam metus posuere vel. Etiam vel dui
at quam placerat sollicitudin. Proin aliquam justo vitae mauris
gravida porta. Praesent hendrerit egestas ligula, faucibus tincidunt
tortor aliquet at. Ut luctus vehicula arcu eget cursus. Suspendisse
eget enim mollis, condimentum lacus eu, viverra nulla. Aenean vel
sapien eget enim convallis accumsan. Donec dictum ullamcorper leo
placerat sollicitudin. Pellentesque habitant morbi tristique
senectus et netus et malesuada fames ac turpis egestas. Vestibulum
volutpat mattis est, a feugiat purus feugiat at. Quisque at velit ut
mauris convallis sodales a et erat. Mauris condimentum augue sit
amet arcu sodales, aliquet ultrices ipsum tempor. Donec scelerisque
mi ligula, vel volutpat velit posuere a. Sed faucibus dui pulvinar
lorem commodo egestas. In facilisis suscipit lacus non suscipit.
Nunc dictum est nulla, a rhoncus mi posuere id. Morbi at tempus
augue. Quisque ac nibh auctor velit auctor placerat id non eros.
Nulla condimentum quam id risus suscipit, ut fermentum mauris
lacinia. Vestibulum suscipit rutrum ex, sed vulputate nisi tempus
ultricies. Sed id ante pretium, accumsan sapien eget, malesuada
quam. Phasellus quis commodo enim. Vivamus in purus ac lorem ornare
posuere non eu quam. Sed arcu tortor, gravida quis fringilla nec,
ultricies et sem. Pellentesque arcu enim, tempor id nisl at, rhoncus
efficitur sem. Ut quis placerat quam. Donec maximus a risus sed
posuere. Curabitur pretium a diam non aliquet.
Class aptent taciti sociosqu ad litora torquent per conubia nostra,
per inceptos himenaeos. Morbi volutpat felis leo, vel ultrices orci
bibendum ac. Integer eu mattis urna. Donec dictum vehicula
fermentum. Pellentesque a rutrum ipsum. Donec ultricies elit purus,
eget viverra tellus tristique sed. In hac habitasse platea dictumst.
Duis elementum semper elit, sit amet rhoncus lacus dictum ac. Nunc
pretium enim ac urna efficitur, eget facilisis enim interdum.
Vivamus vel lectus lacus. Praesent vestibulum vel ligula eget
cursus. Quisque eu dignissim erat. Quisque maximus arcu eu turpis
pulvinar egestas. Nam aliquet neque sed tellus finibus mollis.
Phasellus consequat nibh nec ornare egestas. Donec at pellentesque
lorem.`,
},
}
func TestBytes(t *testing.T) {