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ai-agent/internal/pkg/dto/request/snake_case_contract_test.go
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package request
import (
"go/ast"
"go/parser"
"go/token"
"reflect"
"strconv"
"strings"
"testing"
"unicode"
)
func TestRequestStructTagsUseSnakeCase(t *testing.T) {
fset := token.NewFileSet()
packages, err := parser.ParseDir(fset, ".", nil, 0)
if err != nil {
t.Fatalf("parse request package: %v", err)
}
for _, pkg := range packages {
for filename, file := range pkg.Files {
ast.Inspect(file, func(node ast.Node) bool {
field, ok := node.(*ast.Field)
if !ok || field.Tag == nil {
return true
}
rawTag, err := strconv.Unquote(field.Tag.Value)
if err != nil {
t.Errorf("%s: invalid struct tag %s: %v", filename, field.Tag.Value, err)
return true
}
for _, key := range []string{"json", "form", "query", "uri"} {
name := strings.Split(reflect.StructTag(rawTag).Get(key), ",")[0]
if name == "" || name == "-" {
continue
}
if !isSnakeCaseRequestName(name) {
t.Errorf("%s: %s tag %q must use snake_case", filename, key, name)
}
}
return true
})
}
}
}
func isSnakeCaseRequestName(name string) bool {
for _, r := range name {
if unicode.IsLower(r) || unicode.IsDigit(r) || r == '_' {
continue
}
return false
}
return true
}