Remove legacy `unknwon/com` package (#19298)
Follows: #19284 * The `CopyDir` is only used inside test code * Rewrite `ToSnakeCase` with more test cases * The `RedisCacher` only put strings into cache, here we use internal `toStr` to replace the legacy `ToStr` * The `UniqueQueue` can use string as ID directly, no need to call `ToStr`forgejo
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// Copyright 2022 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package unittest
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import (
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"errors"
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"io"
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"os"
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"path"
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"strings"
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"code.gitea.io/gitea/modules/util"
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)
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// Copy copies file from source to target path.
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func Copy(src, dest string) error {
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// Gather file information to set back later.
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si, err := os.Lstat(src)
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if err != nil {
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return err
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}
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// Handle symbolic link.
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if si.Mode()&os.ModeSymlink != 0 {
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target, err := os.Readlink(src)
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if err != nil {
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return err
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}
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// NOTE: os.Chmod and os.Chtimes don't recognize symbolic link,
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// which will lead "no such file or directory" error.
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return os.Symlink(target, dest)
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}
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sr, err := os.Open(src)
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if err != nil {
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return err
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}
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defer sr.Close()
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dw, err := os.Create(dest)
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if err != nil {
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return err
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}
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defer dw.Close()
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if _, err = io.Copy(dw, sr); err != nil {
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return err
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}
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// Set back file information.
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if err = os.Chtimes(dest, si.ModTime(), si.ModTime()); err != nil {
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return err
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}
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return os.Chmod(dest, si.Mode())
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}
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// CopyDir copy files recursively from source to target directory.
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//
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// The filter accepts a function that process the path info.
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// and should return true for need to filter.
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//
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// It returns error when error occurs in underlying functions.
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func CopyDir(srcPath, destPath string, filters ...func(filePath string) bool) error {
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// Check if target directory exists.
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if _, err := os.Stat(destPath); !errors.Is(err, os.ErrNotExist) {
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return errors.New("file or directory already exists: " + destPath)
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}
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err := os.MkdirAll(destPath, os.ModePerm)
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if err != nil {
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return err
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}
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// Gather directory info.
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infos, err := util.StatDir(srcPath, true)
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if err != nil {
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return err
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}
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var filter func(filePath string) bool
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if len(filters) > 0 {
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filter = filters[0]
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}
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for _, info := range infos {
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if filter != nil && filter(info) {
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continue
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}
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curPath := path.Join(destPath, info)
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if strings.HasSuffix(info, "/") {
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err = os.MkdirAll(curPath, os.ModePerm)
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} else {
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err = Copy(path.Join(srcPath, info), curPath)
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}
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if err != nil {
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return err
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}
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}
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return nil
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}
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// Copyright 2022 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package util
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import "github.com/yuin/goldmark/util"
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func isSnakeCaseUpper(c byte) bool {
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return 'A' <= c && c <= 'Z'
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}
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func isSnakeCaseLowerOrNumber(c byte) bool {
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return 'a' <= c && c <= 'z' || '0' <= c && c <= '9'
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}
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// ToSnakeCase convert the input string to snake_case format.
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//
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// Some samples.
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// "FirstName" => "first_name"
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// "HTTPServer" => "http_server"
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// "NoHTTPS" => "no_https"
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// "GO_PATH" => "go_path"
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// "GO PATH" => "go_path" // space is converted to underscore.
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// "GO-PATH" => "go_path" // hyphen is converted to underscore.
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//
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func ToSnakeCase(input string) string {
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if len(input) == 0 {
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return ""
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}
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var res []byte
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if len(input) == 1 {
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c := input[0]
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if isSnakeCaseUpper(c) {
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res = []byte{c + 'a' - 'A'}
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} else if isSnakeCaseLowerOrNumber(c) {
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res = []byte{c}
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} else {
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res = []byte{'_'}
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}
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} else {
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res = make([]byte, 0, len(input)*4/3)
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pos := 0
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needSep := false
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for pos < len(input) {
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c := input[pos]
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if c >= 0x80 {
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res = append(res, c)
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pos++
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continue
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}
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isUpper := isSnakeCaseUpper(c)
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if isUpper || isSnakeCaseLowerOrNumber(c) {
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end := pos + 1
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if isUpper {
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// skip the following upper letters
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for end < len(input) && isSnakeCaseUpper(input[end]) {
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end++
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}
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if end-pos > 1 && end < len(input) && isSnakeCaseLowerOrNumber(input[end]) {
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end--
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}
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}
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// skip the following lower or number letters
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for end < len(input) && (isSnakeCaseLowerOrNumber(input[end]) || input[end] >= 0x80) {
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end++
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}
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if needSep {
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res = append(res, '_')
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}
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res = append(res, input[pos:end]...)
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pos = end
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needSep = true
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} else {
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res = append(res, '_')
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pos++
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needSep = false
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}
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}
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for i := 0; i < len(res); i++ {
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if isSnakeCaseUpper(res[i]) {
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res[i] += 'a' - 'A'
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}
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}
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}
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return util.BytesToReadOnlyString(res)
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}
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@ -0,0 +1,48 @@
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// Copyright 2022 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package util
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestToSnakeCase(t *testing.T) {
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cases := map[string]string{
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// all old cases from the legacy package
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"HTTPServer": "http_server",
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"_camelCase": "_camel_case",
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"NoHTTPS": "no_https",
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"Wi_thF": "wi_th_f",
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"_AnotherTES_TCaseP": "_another_tes_t_case_p",
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"ALL": "all",
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"_HELLO_WORLD_": "_hello_world_",
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"HELLO_WORLD": "hello_world",
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"HELLO____WORLD": "hello____world",
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"TW": "tw",
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"_C": "_c",
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" sentence case ": "__sentence_case__",
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" Mixed-hyphen case _and SENTENCE_case and UPPER-case": "_mixed_hyphen_case__and_sentence_case_and_upper_case",
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// new cases
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" ": "_",
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"A": "a",
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"A0": "a0",
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"a0": "a0",
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"Aa0": "aa0",
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"啊": "啊",
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"A啊": "a啊",
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"Aa啊b": "aa啊b",
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"A啊B": "a啊_b",
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"Aa啊B": "aa啊_b",
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"TheCase2": "the_case2",
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"ObjIDs": "obj_i_ds", // the strange database column name which already exists
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}
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for input, expected := range cases {
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assert.Equal(t, expected, ToSnakeCase(input))
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}
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}
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