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|
package parse
import (
"bytes"
"math/rand"
"testing"
"github.com/tdewolff/test"
)
func helperRandChars(n, m int, chars string) [][]byte {
r := make([][]byte, n)
for i := range r {
for j := 0; j < m; j++ {
r[i] = append(r[i], chars[rand.Intn(len(chars))])
}
}
return r
}
func helperRandStrings(n, m int, ss []string) [][]byte {
r := make([][]byte, n)
for i := range r {
for j := 0; j < m; j++ {
r[i] = append(r[i], []byte(ss[rand.Intn(len(ss))])...)
}
}
return r
}
////////////////////////////////////////////////////////////////
var wsSlices [][]byte
func init() {
wsSlices = helperRandChars(10000, 50, "abcdefg \n\r\f\t")
}
func TestCopy(t *testing.T) {
foo := []byte("abc")
bar := Copy(foo)
foo[0] = 'b'
test.String(t, string(foo), "bbc")
test.String(t, string(bar), "abc")
}
func TestToLower(t *testing.T) {
foo := []byte("Abc")
bar := ToLower(foo)
bar[1] = 'B'
test.String(t, string(foo), "aBc")
test.String(t, string(bar), "aBc")
}
func TestEqualFold(t *testing.T) {
test.That(t, EqualFold([]byte("Abc"), []byte("abc")))
test.That(t, !EqualFold([]byte("Abcd"), []byte("abc")))
test.That(t, !EqualFold([]byte("Bbc"), []byte("abc")))
test.That(t, !EqualFold([]byte("[]"), []byte("{}"))) // same distance in ASCII as 'a' and 'A'
}
func TestWhitespace(t *testing.T) {
test.That(t, IsAllWhitespace([]byte("\t \r\n\f")))
test.That(t, !IsAllWhitespace([]byte("\t \r\n\fx")))
}
func TestTrim(t *testing.T) {
test.Bytes(t, TrimWhitespace([]byte("a")), []byte("a"))
test.Bytes(t, TrimWhitespace([]byte(" a")), []byte("a"))
test.Bytes(t, TrimWhitespace([]byte("a ")), []byte("a"))
test.Bytes(t, TrimWhitespace([]byte(" ")), []byte(""))
}
func TestPrintable(t *testing.T) {
var tests = []struct {
s string
printable string
}{
{"a", "a"},
{"\x00", "0x00"},
{"\x7F", "0x7F"},
{"\u0800", "ࠀ"},
{"\u200F", "U+200F"},
}
for _, tt := range tests {
t.Run(tt.s, func(t *testing.T) {
printable := ""
for _, r := range tt.s {
printable += Printable(r)
}
test.T(t, printable, tt.printable)
})
}
}
////////////////////////////////////////////////////////////////
func BenchmarkBytesTrim(b *testing.B) {
for i := 0; i < b.N; i++ {
for _, e := range wsSlices {
bytes.TrimSpace(e)
}
}
}
func BenchmarkTrim(b *testing.B) {
for i := 0; i < b.N; i++ {
for _, e := range wsSlices {
TrimWhitespace(e)
}
}
}
func BenchmarkWhitespaceTable(b *testing.B) {
n := 0
for i := 0; i < b.N; i++ {
for _, e := range wsSlices {
for _, c := range e {
if IsWhitespace(c) {
n++
}
}
}
}
}
func BenchmarkWhitespaceIf1(b *testing.B) {
n := 0
for i := 0; i < b.N; i++ {
for _, e := range wsSlices {
for _, c := range e {
if c == ' ' {
n++
}
}
}
}
}
func BenchmarkWhitespaceIf2(b *testing.B) {
n := 0
for i := 0; i < b.N; i++ {
for _, e := range wsSlices {
for _, c := range e {
if c == ' ' || c == '\n' {
n++
}
}
}
}
}
func BenchmarkWhitespaceIf3(b *testing.B) {
n := 0
for i := 0; i < b.N; i++ {
for _, e := range wsSlices {
for _, c := range e {
if c == ' ' || c == '\n' || c == '\r' {
n++
}
}
}
}
}
func BenchmarkWhitespaceIf4(b *testing.B) {
n := 0
for i := 0; i < b.N; i++ {
for _, e := range wsSlices {
for _, c := range e {
if c == ' ' || c == '\n' || c == '\r' || c == '\t' {
n++
}
}
}
}
}
func BenchmarkWhitespaceIf5(b *testing.B) {
n := 0
for i := 0; i < b.N; i++ {
for _, e := range wsSlices {
for _, c := range e {
if c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == '\f' {
n++
}
}
}
}
}
|
