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utils_test.go
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utils_test.go
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package utils
import (
"bytes"
"context"
"crypto/sha256"
"encoding/asn1"
"encoding/hex"
"fmt"
"math/rand"
"os"
"path/filepath"
"reflect"
"regexp"
"strings"
"sync"
"syscall"
"testing"
"time"
"github.com/Laisky/errors/v2"
"github.com/Laisky/zap"
mapset "github.com/deckarep/golang-set/v2"
"github.com/google/uuid"
"github.com/stretchr/testify/require"
"golang.org/x/sync/errgroup"
"github.com/Laisky/go-utils/v5/common"
"github.com/Laisky/go-utils/v5/json"
"github.com/Laisky/go-utils/v5/log"
)
type testEmbeddedSt struct{}
type testStCorrect1 struct {
testEmbeddedSt
}
type testStCorrect2 struct {
testEmbeddedSt string
}
type testStFail struct {
}
func (t *testStCorrect1) PointerMethod() {
}
func (t *testStCorrect1) Method() {
}
func TestHasMethod(t *testing.T) {
st1 := testStCorrect1{}
st1p := &testStCorrect1{}
st2 := testStFail{}
st2p := &testStFail{}
_ = st1.testEmbeddedSt
_ = st1p.testEmbeddedSt
if !HasMethod(st1, "Method") {
t.Fatal()
}
if !HasMethod(st1, "PointerMethod") {
t.Fatal()
}
if !HasMethod(st1p, "Method") {
t.Fatal()
}
if !HasMethod(st1p, "PointerMethod") {
t.Fatal()
}
if HasMethod(st2, "Method") {
t.Fatal()
}
if HasMethod(st2, "PointerMethod") {
t.Fatal()
}
if HasMethod(st2p, "Method") {
t.Fatal()
}
if HasMethod(st2p, "PointerMethod") {
t.Fatal()
}
}
func TestHasField(t *testing.T) {
t.Parallel()
st1 := testStCorrect1{}
st1p := &testStCorrect1{}
st2 := testStCorrect2{}
st2p := &testStCorrect2{}
st3 := testStFail{}
st3p := &testStFail{}
_ = st2.testEmbeddedSt
if !HasField(st1, "testEmbeddedSt") {
t.Fatal()
}
if !HasField(st1p, "testEmbeddedSt") {
t.Fatal()
}
if !HasField(st2, "testEmbeddedSt") {
t.Fatal()
}
if !HasField(st2p, "testEmbeddedSt") {
t.Fatal()
}
if HasField(st3, "testEmbeddedSt") {
t.Fatal()
}
if HasField(st3p, "testEmbeddedSt") {
t.Fatal()
}
}
func TestValidateFileHash(t *testing.T) {
t.Parallel()
fp, err := os.CreateTemp("", "go-utils-*")
require.NoError(t, err)
defer os.Remove(fp.Name())
defer fp.Close()
content := []byte("jijf32ijr923e890dsfuodsafjlj;f9o2ur9re")
_, err = fp.Write(content)
require.NoError(t, err)
err = ValidateFileHash(fp.Name(), "sha256:123")
require.Error(t, err)
err = ValidateFileHash(fp.Name(), "md5:123")
require.Error(t, err)
err = ValidateFileHash(fp.Name(), "sha254:123")
require.Error(t, err)
err = ValidateFileHash(fp.Name(), "")
require.Error(t, err)
err = ValidateFileHash(
fp.Name(),
"sha256:aea7e26c0e0b12ad210a8a0e45c379d0325b567afdd4b357158059b0ef03ae67",
)
require.NoError(t, err)
err = ValidateFileHash(
fp.Name(),
"md5:794e37eea6b3df6e6eba69eb02f9b8c7",
)
require.NoError(t, err)
}
func TestJSON(t *testing.T) {
t.Parallel()
t.Run("marshal", func(t *testing.T) {
jb, err := json.Marshal("123")
require.NoError(t, err)
var v string
json.Unmarshal(jb, &v)
require.NoError(t, err)
require.Equal(t, "123", v)
})
t.Run("marshal string", func(t *testing.T) {
jb, err := json.MarshalToString("123")
require.NoError(t, err)
var v string
json.UnmarshalFromString(jb, &v)
require.NoError(t, err)
require.Equal(t, "123", v)
})
t.Run("json not support comment", func(t *testing.T) {
d := struct {
K string
}{}
raw := `{
// comment
"k": "v" // comment
}`
err := json.Unmarshal([]byte(raw), &d)
require.ErrorContains(t, err, "invalid character '/'")
})
t.Run("json support comment", func(t *testing.T) {
d := struct {
K string
}{}
raw := `{
// comment
"k": "v" // comment
}`
err := json.UnmarshalComment([]byte(raw), &d)
require.NoError(t, err)
require.Equal(t, "v", d.K)
})
}
func TestIsPtr(t *testing.T) {
vp := &struct{}{}
vt := struct{}{}
if !IsPtr(vp) {
t.Fatal()
}
if IsPtr(vt) {
t.Fatal()
}
}
func testFoo() {}
func TestGetFuncName(t *testing.T) {
t.Parallel()
if name := GetFuncName(testFoo); name != "github.com/Laisky/go-utils/v5.testFoo" {
t.Fatalf("want `testFoo`, got `%v`", name)
}
}
func ExampleGetFuncName() {
GetFuncName(testFoo) // "github.com/Laisky/go-utils.testFoo"
}
func TestFallBack(t *testing.T) {
t.Parallel()
fail := func() any {
panic("got error")
}
expect := 10
got := FallBack(fail, 10)
if expect != got.(int) {
t.Errorf("expect %v got %v", expect, got)
}
}
func ExampleFallBack() {
targetFunc := func() any {
panic("someting wrong")
}
FallBack(targetFunc, 10) // got 10
}
func TestRegexNamedSubMatch2(t *testing.T) {
t.Parallel()
reg := regexp.MustCompile(`^(?P<time>.{23}) {0,}\| {0,}(?P<app>[^ ]+) {0,}\| {0,}(?P<level>[^ ]+) {0,}\| {0,}(?P<thread>[^ ]+) {0,}\| {0,}(?P<class>[^ ]+) {0,}\| {0,}(?P<line>\d+) {0,}([\|:] {0,}(?P<args>\{.*\})){0,1}([\|:] {0,}(?P<message>.*)){0,1}`)
str := "2018-04-02 02:02:10.928 | sh-datamining | INFO | http-nio-8080-exec-80 | com.pateo.qingcloud.gateway.core.zuul.filters.post.LogFilter | 74 | xxx"
submatchMap, err := RegexNamedSubMatch2(reg, str)
require.NoError(t, err)
for k, v := range submatchMap {
fmt.Println(">>", k, ":", v)
}
if v1, ok := submatchMap["level"]; !ok {
t.Fatalf("`level` should exists")
} else if v1 != "INFO" {
t.Fatalf("`level` shoule be `INFO`, but got: %v", v1)
}
if v2, ok := submatchMap["line"]; !ok {
t.Fatalf("`line` should exists")
} else if v2 != "74" {
t.Fatalf("`line` shoule be `74`, but got: %v", v2)
}
}
func TestRegexNamedSubMatch(t *testing.T) {
t.Parallel()
reg := regexp.MustCompile(`^(?P<time>.{23}) {0,}\| {0,}(?P<app>[^ ]+) {0,}\| {0,}(?P<level>[^ ]+) {0,}\| {0,}(?P<thread>[^ ]+) {0,}\| {0,}(?P<class>[^ ]+) {0,}\| {0,}(?P<line>\d+) {0,}([\|:] {0,}(?P<args>\{.*\})){0,1}([\|:] {0,}(?P<message>.*)){0,1}`)
str := "2018-04-02 02:02:10.928 | sh-datamining | INFO | http-nio-8080-exec-80 | com.pateo.qingcloud.gateway.core.zuul.filters.post.LogFilter | 74 | xxx"
submatchMap := map[string]string{}
if err := RegexNamedSubMatch(reg, str, submatchMap); err != nil {
t.Fatalf("got error: %+v", err)
}
for k, v := range submatchMap {
fmt.Println(">>", k, ":", v)
}
if v1, ok := submatchMap["level"]; !ok {
t.Fatalf("`level` should exists")
} else if v1 != "INFO" {
t.Fatalf("`level` shoule be `INFO`, but got: %v", v1)
}
if v2, ok := submatchMap["line"]; !ok {
t.Fatalf("`line` should exists")
} else if v2 != "74" {
t.Fatalf("`line` shoule be `74`, but got: %v", v2)
}
}
func ExampleRegexNamedSubMatch() {
reg := regexp.MustCompile(`(?P<key>\d+.*)`)
str := "12345abcde"
groups := map[string]string{}
if err := RegexNamedSubMatch(reg, str, groups); err != nil {
log.Shared.Error("try to group match got error", zap.Error(err))
}
fmt.Println(groups)
// Output: map[key:12345abcde]
}
func TestFlattenMap(t *testing.T) {
data := map[string]any{}
j := []byte(`{"a": "1", "b": {"c": 2, "d": {"e": 3}}, "f": 4, "g": {}}`)
if err := json.Unmarshal(j, &data); err != nil {
t.Fatalf("got error: %+v", err)
}
FlattenMap(data, ".")
if data["a"].(string) != "1" {
t.Fatalf("expect %v, got %v", "1", data["a"])
}
if int(data["b.c"].(float64)) != 2 {
t.Fatalf("expect %v, got %v", 2, data["b.c"])
}
if int(data["b.d.e"].(float64)) != 3 {
t.Fatalf("expect %v, got %v", 3, data["b.d.e"])
}
if int(data["f"].(float64)) != 4 {
t.Fatalf("expect %v, got %v", 4, data["f"])
}
if _, ok := data["g"]; ok {
t.Fatalf("g should not exists")
}
}
func ExampleFlattenMap() {
data := map[string]any{
"a": "1",
"b": map[string]any{
"c": 2,
"d": map[string]any{
"e": 3,
},
},
}
FlattenMap(data, "__")
fmt.Println(data)
// Output: map[a:1 b__c:2 b__d__e:3]
}
func TestTriggerGC(t *testing.T) {
TriggerGC()
ForceGC()
}
func TestTemplateWithMap(t *testing.T) {
t.Parallel()
tpl := `123${k1} + ${k2}:${k-3} 22`
data := map[string]any{
"k1": 41,
"k2": "abc",
"k-3": 213.11,
}
want := `12341 + abc:213.11 22`
got := TemplateWithMap(tpl, data)
if got != want {
t.Fatalf("want `%v`, got `%v`", want, got)
}
}
func TestURLMasking(t *testing.T) {
t.Parallel()
type testcase struct {
input string
output string
}
var (
ret string
mask = "*****"
)
for _, tc := range []*testcase{
{
"http://12ijij:[email protected]",
"http://12ijij:" + mask + "@jfjlwef.ffe.com",
},
{
"https://12ijij:[email protected]/13",
"https://12ijij:" + mask + "@123.1221.14/13",
},
} {
ret = URLMasking(tc.input, mask)
if ret != tc.output {
t.Fatalf("expect %v, got %v", tc.output, ret)
}
}
}
func ExampleURLMasking() {
originURL := "http://12ijij:[email protected]"
newURL := URLMasking(originURL, "*****")
fmt.Println(newURL)
// Output: http://12ijij:*****@jfjlwef.ffe.com
}
func TestAutoGC(t *testing.T) {
t.Parallel()
var err error
if err = log.Shared.ChangeLevel("debug"); err != nil {
t.Fatalf("%+v", err)
}
var fp *os.File
if fp, err = os.CreateTemp("", "test-gc*"); err != nil {
t.Fatalf("%+v", err)
}
defer fp.Close()
if _, err = fp.WriteString("123456789"); err != nil {
t.Fatalf("%+v", err)
}
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
defer cancel()
err = AutoGC(ctx,
WithGCMemRatio(85),
WithGCMemLimitFilePath(fp.Name()),
)
require.NoError(t, err)
<-ctx.Done()
// t.Error()
// case: test err arguments
{
err = AutoGC(ctx, WithGCMemRatio(-1))
require.Error(t, err)
err = AutoGC(ctx, WithGCMemRatio(0))
require.Error(t, err)
err = AutoGC(ctx, WithGCMemRatio(101))
require.Error(t, err)
err = AutoGC(ctx, WithGCMemLimitFilePath(RandomStringWithLength(100)))
require.Error(t, err)
}
}
func ExampleAutoGC() {
ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
defer cancel()
if err := AutoGC(
ctx,
WithGCMemRatio(85), // default
WithGCMemLimitFilePath("/sys/fs/cgroup/memory/memory.limit_in_bytes"), // default
); err != nil {
log.Shared.Error("enable autogc", zap.Error(err))
}
}
func TestForceGCBlocking(t *testing.T) {
t.Parallel()
ForceGCBlocking()
}
func ExampleForceGCBlocking() {
ForceGCBlocking()
}
func ExampleForceGCUnBlocking() {
ForceGCUnBlocking()
}
func TestForceGCUnBlocking(t *testing.T) {
t.Parallel()
ForceGCUnBlocking()
var pool errgroup.Group
for i := 0; i < 1000; i++ {
pool.Go(func() error {
ForceGCUnBlocking()
return nil
})
}
require.NoError(t, pool.Wait())
}
func TestReflectSet(t *testing.T) {
t.Parallel()
type st struct{ A, B string }
ss := []*st{{}, {}}
nFields := reflect.ValueOf(ss[0]).Elem().NumField()
vs := [][]string{{"x1", "y1"}, {"x2", "y2"}}
for i, s := range ss {
for j := 0; j < nFields; j++ {
// if reflect.ValueOf(s).Type() != reflect.Ptr {
// sp = &s
// }
reflect.ValueOf(s).Elem().Field(j).Set(reflect.ValueOf(vs[i][j]))
}
}
t.Logf("s0: %+v", ss[0])
t.Logf("s1: %+v", ss[1])
// t.Error()
}
func ExampleSetStructFieldsBySlice() {
type ST struct{ A, B string }
var (
err error
ss = []*ST{{}, {}}
vs = [][]string{
{"x0", "y0"},
{"x1", "y1"},
}
)
if err = SetStructFieldsBySlice(ss, vs); err != nil {
log.Shared.Error("set struct val", zap.Error(err))
return
}
fmt.Printf("%+v\n", ss)
// ss = []*ST{{A: "x0", B: "y0"}, {A: "x1", B: "y1"}}
}
func TestSetStructFieldsBySlice(t *testing.T) {
t.Parallel()
type ST struct{ A, B string }
var (
err error
ss = []*ST{
{},
{},
{},
{},
{},
{},
}
vs = [][]string{
{"x0", "y0"}, // 0
{"x1", "y1"}, // 1
{}, // 2
{"x3", "y3", "z3"}, // 3
{"x4"}, // 4
}
)
if err = SetStructFieldsBySlice(ss, vs); err != nil {
t.Fatalf("%+v", err)
}
t.Logf("s0: %+v", ss[0])
t.Logf("s1: %+v", ss[1])
t.Logf("s2: %+v", ss[2])
t.Logf("s3: %+v", ss[3])
t.Logf("s4: %+v", ss[4])
t.Logf("s5: %+v", ss[5])
if ss[0].A != "x0" ||
ss[0].B != "y0" ||
ss[1].A != "x1" ||
ss[1].B != "y1" ||
ss[2].A != "" ||
ss[2].B != "" ||
ss[3].A != "x3" ||
ss[3].B != "y3" ||
ss[4].A != "x4" ||
ss[4].B != "" ||
ss[5].A != "" ||
ss[5].B != "" {
t.Fatalf("incorrect")
}
// non-pointer struct
ss2 := []ST{
{},
{},
}
if err = SetStructFieldsBySlice(ss2, vs); err != nil {
t.Fatalf("%+v", err)
}
t.Logf("s0: %+v", ss2[0])
t.Logf("s1: %+v", ss2[1])
if ss2[0].A != "x0" ||
ss2[0].B != "y0" ||
ss2[1].A != "x1" ||
ss2[1].B != "y1" {
t.Fatalf("incorrect")
}
}
func TestRunCMD(t *testing.T) {
ctx := context.Background()
type args struct {
app string
args []string
}
tests := []struct {
name string
args args
wantStdout []byte
wantErr bool
}{
{"sleep", args{"sleep", []string{"0.1"}}, []byte{}, false},
{"sleep-err", args{"sleep", nil}, []byte("sleep: missing operand"), true},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
gotStdout, err := RunCMD(ctx, tt.args.app, tt.args.args...)
if (err != nil) != tt.wantErr {
t.Errorf("RunCMD() error = %v, wantErr %v", err, tt.wantErr)
return
}
if !bytes.Contains(gotStdout, tt.wantStdout) {
t.Errorf("RunCMD() = %s, want %s", gotStdout, tt.wantStdout)
}
})
}
}
// linux pipe has 16MB default buffer
func TestRunCMDForHugeFile(t *testing.T) {
dir, err := os.MkdirTemp("", "run_cmd-*")
require.NoError(t, err)
defer os.Remove(dir)
fpath := filepath.Join(dir, "test.txt")
fp, err := os.OpenFile(fpath, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0664)
require.NoError(t, err)
for i := 0; i < 1024*18; i++ {
_, err = fp.Write([]byte(RandomStringWithLength(1024)))
require.NoError(t, err)
}
err = fp.Close()
require.NoError(t, err)
ctx := context.Background()
out, err := RunCMD(ctx, "cat", fpath)
require.NoError(t, err)
require.Equal(t, len(out), 18*1024*1024)
}
func TestRemoveEmpty(t *testing.T) {
type args struct {
vs []string
}
tests := []struct {
name string
args args
wantR []string
}{
{"0", args{[]string{"1"}}, []string{"1"}},
{"1", args{[]string{"1", ""}}, []string{"1"}},
{"2", args{[]string{"1", "", " "}}, []string{"1"}},
{"3", args{[]string{"1", "", " ", "2", ""}}, []string{"1", "2"}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if gotR := RemoveEmpty(tt.args.vs); !reflect.DeepEqual(gotR, tt.wantR) {
t.Errorf("RemoveEmpty() = %v, want %v", gotR, tt.wantR)
}
})
}
}
func TestTrimEleSpaceAndRemoveEmpty(t *testing.T) {
type args struct {
vs []string
}
tests := []struct {
name string
args args
wantR []string
}{
{"0", args{[]string{"1"}}, []string{"1"}},
{"1", args{[]string{"1", ""}}, []string{"1"}},
{"2", args{[]string{"1", "", " "}}, []string{"1"}},
{"3", args{[]string{"1", "", " ", "2", ""}}, []string{"1", "2"}},
{"4", args{[]string{"1", "", " ", "2 ", ""}}, []string{"1", "2"}},
{"5", args{[]string{"1", "", " ", " 2 ", ""}}, []string{"1", "2"}},
{"6", args{[]string{"1", "", " ", " 2", ""}}, []string{"1", "2"}},
{"7", args{[]string{" 1", "", " ", " 2", ""}}, []string{"1", "2"}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if gotR := TrimEleSpaceAndRemoveEmpty(tt.args.vs); !reflect.DeepEqual(gotR, tt.wantR) {
t.Errorf("TrimEleSpaceAndRemoveEmpty() = %v, want %v", gotR, tt.wantR)
}
})
}
}
func TestGetStructFieldByName(t *testing.T) {
t.Parallel()
type foo struct {
A string
B *string
C int
E *string
}
s := "2"
f := foo{"1", &s, 2, nil}
if v := GetStructFieldByName(f, "A"); v.(string) != "1" {
t.Fatalf("got %+v", v)
}
if v := GetStructFieldByName(f, "B"); v.(*string) != &s {
t.Fatalf("got %+v", v)
}
if v := GetStructFieldByName(f, "C"); v.(int) != 2 {
t.Fatalf("got %+v", v)
}
if v := GetStructFieldByName(f, "D"); v != nil {
t.Fatalf("got %+v", v)
}
if v := GetStructFieldByName(f, "E"); v != nil {
t.Fatalf("got %+v", v)
}
fi := &foo{"1", &s, 2, nil}
if v := GetStructFieldByName(fi, "A"); v.(string) != "1" {
t.Fatalf("got %+v", v)
}
if v := GetStructFieldByName(fi, "B"); v.(*string) != &s {
t.Fatalf("got %+v", v)
}
if v := GetStructFieldByName(fi, "C"); v.(int) != 2 {
t.Fatalf("got %+v", v)
}
if v := GetStructFieldByName(fi, "D"); v != nil {
t.Fatalf("got %+v", v)
}
if v := GetStructFieldByName(fi, "E"); v != nil {
t.Fatalf("got %+v", v)
}
}
/*
cpu: Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz
Benchmark_Str2Bytes/normal_str2bytes-8 868298 1156 ns/op 1024 B/op 1 allocs/op
Benchmark_Str2Bytes/normal_bytes2str-8 1000000 1216 ns/op 1024 B/op 1 allocs/op
Benchmark_Str2Bytes/unsafe_str2bytes-8 11335250 92.66 ns/op 0 B/op 0 allocs/op
Benchmark_Str2Bytes/unsafe_bytes2str-8 11320952 106.2 ns/op 0 B/op 0 allocs/op
PASS
*/
func Benchmark_Str2Bytes(b *testing.B) {
rawStr := RandomStringWithLength(1024)
rawBytes := []byte(rawStr)
b.Run("normal_str2bytes", func(b *testing.B) {
for i := 0; i < b.N; i++ {
_ = []byte(rawStr)
}
})
b.Run("normal_bytes2str", func(b *testing.B) {
for i := 0; i < b.N; i++ {
_ = string(rawBytes)
}
})
b.Run("unsafe_str2bytes", func(b *testing.B) {
for i := 0; i < b.N; i++ {
_ = Str2Bytes(rawStr)
}
})
b.Run("unsafe_bytes2str", func(b *testing.B) {
for i := 0; i < b.N; i++ {
_ = Bytes2Str(rawBytes)
}
})
}
// func Test_ConvertMap(t *testing.T) {
// {
// input := map[any]string{"123": "23"}
// got := ConvertMap(input)
// t.Log(got)
// require.True(t, reflect.DeepEqual(map[string]any{"123": "23"}, got))
// }
// {
// input := map[any]int{"123": 23}
// got := ConvertMap(input)
// t.Log(got)
// require.True(t, reflect.DeepEqual(map[string]any{"123": 23}, got))
// }
// {
// input := map[any]uint{"123": 23}
// got := ConvertMap(input)
// t.Log(got)
// require.True(t, reflect.DeepEqual(map[string]any{"123": uint(23)}, got))
// }
// {
// input := map[string]int{"123": 23}
// got := ConvertMap(input)
// t.Log(got)
// require.True(t, reflect.DeepEqual(map[string]any{"123": 23}, got))
// }
// }
func TestConvert2Map(t *testing.T) {
type args struct {
inputMap any
}
tests := []struct {
name string
args args
want map[string]any
}{
{"0", args{map[any]string{"123": "23"}}, map[string]any{"123": "23"}},
{"1", args{map[any]int{"123": 23}}, map[string]any{"123": 23}},
{"2", args{map[any]uint{"123": 23}}, map[string]any{"123": uint(23)}},
{"3", args{map[string]uint{"123": 23}}, map[string]any{"123": uint(23)}},
{"4", args{map[int]uint{123: 23}}, map[string]any{"123": uint(23)}},
{"5", args{map[float32]string{float32(123): "23"}}, map[string]any{"123": "23"}},
{"6", args{map[float32]int{float32(123): 23}}, map[string]any{"123": 23}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := ConvertMap2StringKey(tt.args.inputMap); !reflect.DeepEqual(got, tt.want) {
t.Errorf("ConvertMap() = %v, want %v", got, tt.want)
}
})
}
}
func TestStopSignal(t *testing.T) {
stopCh := StopSignal(WithStopSignalCloseSignals(os.Interrupt, syscall.SIGTERM))
select {
case <-stopCh:
t.Fatal("should not be closed")
default:
}
err := syscall.Kill(syscall.Getpid(), syscall.SIGINT)
require.NoError(t, err)
_, ok := <-stopCh
require.False(t, ok)
// case: panic
{
ok := IsPanic(func() {
_ = StopSignal(WithStopSignalCloseSignals())
})
require.True(t, ok)
}
}
func TestBytes2Str(t *testing.T) {
rawStr := RandomStringWithLength(1024)
rawBytes := []byte(rawStr)
str := Bytes2Str(rawBytes)
require.Equal(t, rawStr, str)
// case: bytes should changed by string
{
rawBytes[0] = '@'
rawBytes[1] = 'a'
rawBytes[2] = 'b'
rawBytes[3] = 'c'
require.Equal(t, string(rawBytes), str)
}
// case: Str2Bytes should return the same bytes struct
{
newBytes := Str2Bytes(str)
require.Equal(t, fmt.Sprintf("%x", newBytes), fmt.Sprintf("%x", rawBytes))
}
}
func Benchmark_slice(b *testing.B) {
type foo struct {
val string
}
payload := RandomStringWithLength(128)
b.Run("[]struct append", func(b *testing.B) {
var data []foo
for i := 0; i < b.N; i++ {
data = append(data, foo{val: payload})
}
b.Log(len(data))
})
b.Run("[]*struct append", func(b *testing.B) {
var data []*foo
for i := 0; i < b.N; i++ {
data = append(data, &foo{val: payload})
}
b.Log(len(data))
})
b.Run("[]struct with prealloc", func(b *testing.B) {
data := make([]foo, 100)
for i := 0; i < b.N; i++ {
data[i%100] = foo{val: payload}
}
})
b.Run("[]*struct with prealloc", func(b *testing.B) {
data := make([]*foo, 100)
for i := 0; i < b.N; i++ {
data[i%100] = &foo{val: payload}
}
})
}
func TestJSONMd5(t *testing.T) {
type args struct {
data any
}
type foo struct {
Name string `json:"name"`
}
var nilArgs *foo
tests := []struct {
name string
args args
want string
wantErr bool
}{
{"0", args{nil}, "", true},
{"1", args{nilArgs}, "", true},
{"2", args{foo{}}, "555dfa90763bd852d5dd9144887eed97", false},
{"3", args{new(foo)}, "555dfa90763bd852d5dd9144887eed97", false},
{"4", args{foo{""}}, "555dfa90763bd852d5dd9144887eed97", false},
{"5", args{foo{Name: "a"}}, "88148e411b9b424a2e0ddf108cb02baa", false},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, err := MD5JSON(tt.args.data)
if (err != nil) != tt.wantErr {
t.Errorf("MD5JSON() error = %v, wantErr %v", err, tt.wantErr)
return
}
if got != tt.want {
t.Errorf("MD5JSON() = %v, want %v", got, tt.want)
}
})
}
}
func TestNilInterface(t *testing.T) {
type foo struct{}
var f *foo
var v any
var tf foo
v = f
require.NotEqual(t, v, nil)
require.True(t, NilInterface(v))
require.False(t, NilInterface(tf))
require.False(t, NilInterface(123))
require.True(t, NilInterface(nil))
}
func TestPanicIfErr(t *testing.T) {
PanicIfErr(nil)
err := errors.New("yo")
defer func() {
deferErr := recover()
require.Equal(t, err, deferErr)
}()
PanicIfErr(err)
}
func TestDedent(t *testing.T) {
// t.Run("normal", func(t *testing.T) {
// v := `
// 123
// 234
// 345
// 222
// `
// dedent := Dedent(v, WithReplaceTabBySpaces(4))
// require.Equal(t, "123\n234\n 345\n 222", dedent)
// })
t.Run("normal with blank lines", func(t *testing.T) {