450 lines
12 KiB
Go
450 lines
12 KiB
Go
package boil
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import (
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"fmt"
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"math/rand"
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"reflect"
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"regexp"
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"sort"
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"strconv"
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"time"
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"github.com/nullbio/sqlboiler/strmangle"
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"github.com/satori/go.uuid"
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"gopkg.in/nullbio/null.v4"
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)
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var (
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typeNullFloat32 = reflect.TypeOf(null.Float32{})
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typeNullFloat64 = reflect.TypeOf(null.Float64{})
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typeNullInt = reflect.TypeOf(null.Int{})
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typeNullInt8 = reflect.TypeOf(null.Int8{})
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typeNullInt16 = reflect.TypeOf(null.Int16{})
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typeNullInt32 = reflect.TypeOf(null.Int32{})
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typeNullInt64 = reflect.TypeOf(null.Int64{})
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typeNullUint = reflect.TypeOf(null.Uint{})
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typeNullUint8 = reflect.TypeOf(null.Uint8{})
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typeNullUint16 = reflect.TypeOf(null.Uint16{})
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typeNullUint32 = reflect.TypeOf(null.Uint32{})
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typeNullUint64 = reflect.TypeOf(null.Uint64{})
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typeNullString = reflect.TypeOf(null.String{})
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typeNullBool = reflect.TypeOf(null.Bool{})
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typeNullTime = reflect.TypeOf(null.Time{})
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typeTime = reflect.TypeOf(time.Time{})
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rgxValidTime = regexp.MustCompile(`[2-9]+`)
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)
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type seed int
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var sd = new(seed)
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func (s *seed) nextInt() int {
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nextInt := int(*s)
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*s++
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return nextInt
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}
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// IsZeroValue checks if the variables with matching columns in obj
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// are or are not zero values, depending on whether shouldZero is true or false
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func IsZeroValue(obj interface{}, shouldZero bool, columns ...string) []error {
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val := reflect.Indirect(reflect.ValueOf(obj))
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var errs []error
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for _, c := range columns {
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field := val.FieldByName(strmangle.TitleCase(c))
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if !field.IsValid() {
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panic(fmt.Sprintf("Unable to find variable with column name %s", c))
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}
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zv := reflect.Zero(field.Type())
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if shouldZero && !reflect.DeepEqual(field.Interface(), zv.Interface()) {
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errs = append(errs, fmt.Errorf("Column with name %s is not zero value: %#v, %#v", c, field.Interface(), zv.Interface()))
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} else if !shouldZero && reflect.DeepEqual(field.Interface(), zv.Interface()) {
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errs = append(errs, fmt.Errorf("Column with name %s is zero value: %#v, %#v", c, field.Interface(), zv.Interface()))
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}
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}
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return errs
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}
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// IsValueMatch checks whether the variables in obj with matching column names
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// match the values in the values slice.
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func IsValueMatch(obj interface{}, columns []string, values []interface{}) []error {
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val := reflect.Indirect(reflect.ValueOf(obj))
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var errs []error
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for i, c := range columns {
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field := val.FieldByName(strmangle.TitleCase(c))
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if !field.IsValid() {
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panic(fmt.Sprintf("Unable to find variable with column name %s", c))
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}
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typ := field.Type().String()
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if typ == "time.Time" || typ == "null.Time" {
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var timeField reflect.Value
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var valTimeStr string
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if typ == "time.Time" {
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valTimeStr = values[i].(time.Time).String()
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timeField = field
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} else {
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valTimeStr = values[i].(null.Time).Time.String()
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timeField = field.FieldByName("Time")
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validField := field.FieldByName("Valid")
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if validField.Interface() != values[i].(null.Time).Valid {
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errs = append(errs, fmt.Errorf("Null.Time column with name %s Valid field does not match: %v ≠ %v", c, values[i].(null.Time).Valid, validField.Interface()))
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}
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}
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if (rgxValidTime.MatchString(valTimeStr) && timeField.Interface() == reflect.Zero(timeField.Type()).Interface()) ||
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(!rgxValidTime.MatchString(valTimeStr) && timeField.Interface() != reflect.Zero(timeField.Type()).Interface()) {
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errs = append(errs, fmt.Errorf("Time column with name %s Time field does not match: %v ≠ %v", c, values[i], timeField.Interface()))
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}
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continue
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}
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if !reflect.DeepEqual(field.Interface(), values[i]) {
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errs = append(errs, fmt.Errorf("Column with name %s does not match value: %#v ≠ %#v", c, values[i], field.Interface()))
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}
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}
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return errs
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}
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// RandomizeSlice takes a pointer to a slice of pointers to objects
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// and fills the pointed to objects with random data.
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// It will ignore the fields in the blacklist.
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func RandomizeSlice(obj interface{}, colTypes map[string]string, includeInvalid bool, blacklist ...string) error {
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ptrSlice := reflect.ValueOf(obj)
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typ := ptrSlice.Type()
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ptrSlice = ptrSlice.Elem()
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kind := typ.Kind()
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var structTyp reflect.Type
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for i, exp := range []reflect.Kind{reflect.Ptr, reflect.Slice, reflect.Ptr, reflect.Struct} {
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if i != 0 {
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typ = typ.Elem()
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kind = typ.Kind()
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}
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if kind != exp {
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return fmt.Errorf("[%d] RandomizeSlice object type should be *[]*Type but was: %s", i, ptrSlice.Type().String())
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}
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if kind == reflect.Struct {
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structTyp = typ
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}
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}
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for i := 0; i < ptrSlice.Len(); i++ {
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o := ptrSlice.Index(i)
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o.Set(reflect.New(structTyp))
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if err := RandomizeStruct(o.Interface(), colTypes, includeInvalid, blacklist...); 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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// RandomizeStruct takes an object and fills it with random data.
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// It will ignore the fields in the blacklist.
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func RandomizeStruct(str interface{}, colTypes map[string]string, includeInvalid bool, blacklist ...string) error {
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// Don't modify blacklist
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copyBlacklist := make([]string, len(blacklist))
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copy(copyBlacklist, blacklist)
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blacklist = copyBlacklist
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sort.Strings(blacklist)
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// Check if it's pointer
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value := reflect.ValueOf(str)
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kind := value.Kind()
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if kind != reflect.Ptr {
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return fmt.Errorf("Outer element should be a pointer, given a non-pointer: %T", str)
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}
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// Check if it's a struct
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value = value.Elem()
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kind = value.Kind()
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if kind != reflect.Struct {
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return fmt.Errorf("Inner element should be a struct, given a non-struct: %T", str)
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}
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typ := value.Type()
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nFields := value.NumField()
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// Iterate through fields, randomizing
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for i := 0; i < nFields; i++ {
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fieldVal := value.Field(i)
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fieldTyp := typ.Field(i)
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var found bool
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for _, v := range blacklist {
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if strmangle.TitleCase(v) == fieldTyp.Name {
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found = true
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break
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}
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}
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if found {
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continue
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}
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fieldDBType := colTypes[fieldTyp.Name]
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if err := randomizeField(fieldVal, fieldDBType, includeInvalid); 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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// RandomizeValidatedStruct takes an object fills its validated columns with random data.
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func RandomizeValidatedStruct(obj interface{}, validatedCols []string, colTypes map[string]string) error {
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// Check if it's pointer
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value := reflect.ValueOf(obj)
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kind := value.Kind()
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if kind != reflect.Ptr {
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return fmt.Errorf("Outer element should be a pointer, given a non-pointer: %T", obj)
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}
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// Check if it's a struct
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value = value.Elem()
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kind = value.Kind()
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if kind != reflect.Struct {
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return fmt.Errorf("Inner element should be a struct, given a non-struct: %T", obj)
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}
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typ := value.Type()
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nFields := value.NumField()
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// Iterate through fields
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for i := 0; i < nFields; i++ {
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fieldVal := value.Field(i)
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fieldTyp := typ.Field(i)
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for _, v := range validatedCols {
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if strmangle.TitleCase(v) == fieldTyp.Name {
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if err := randomizeField(fieldVal, colTypes[fieldTyp.Name], false); err != nil {
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return err
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}
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break
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}
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}
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}
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return nil
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}
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// randDate generates a random time.Time between 1850 and 2050.
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// Only the Day/Month/Year columns are set so that Dates and DateTimes do
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// not cause mismatches in the test data comparisons.
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func randDate(sd int) time.Time {
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t := time.Date(
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1850+rand.Intn(sd),
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time.Month(1+rand.Intn(12)),
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1+rand.Intn(25),
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0,
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0,
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0,
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0,
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time.UTC,
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)
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return t
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}
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func randomizeField(field reflect.Value, fieldType string, includeInvalid bool) error {
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kind := field.Kind()
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typ := field.Type()
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var newVal interface{}
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if kind == reflect.Struct {
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var b bool
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if includeInvalid {
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b = rand.Intn(2) == 1
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} else {
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b = true
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}
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switch typ {
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case typeNullBool:
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if b {
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newVal = null.NewBool(sd.nextInt()%2 == 0, b)
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} else {
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newVal = null.NewBool(false, false)
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}
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case typeNullString:
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if b {
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switch fieldType {
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case "interval":
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newVal = null.NewString(strconv.Itoa((sd.nextInt()%26)+2)+" days", b)
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case "uuid":
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newVal = null.NewString(uuid.NewV4().String(), b)
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default:
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newVal = null.NewString(randStr(1, sd.nextInt()), b)
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}
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} else {
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newVal = null.NewString("", false)
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}
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case typeNullTime:
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if b {
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newVal = null.NewTime(randDate(sd.nextInt()), b)
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} else {
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newVal = null.NewTime(time.Time{}, false)
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}
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case typeTime:
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newVal = randDate(sd.nextInt())
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case typeNullFloat32:
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if b {
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newVal = null.NewFloat32(float32(sd.nextInt()%10)/10.0+float32(sd.nextInt()%10), b)
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} else {
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newVal = null.NewFloat32(0.0, false)
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}
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case typeNullFloat64:
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if b {
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newVal = null.NewFloat64(float64(sd.nextInt()%10)/10.0+float64(sd.nextInt()%10), b)
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} else {
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newVal = null.NewFloat64(0.0, false)
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}
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case typeNullInt:
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if b {
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newVal = null.NewInt(sd.nextInt(), b)
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} else {
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newVal = null.NewInt(0, false)
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}
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case typeNullInt8:
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if b {
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newVal = null.NewInt8(int8(sd.nextInt()), b)
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} else {
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newVal = null.NewInt8(0, false)
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}
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case typeNullInt16:
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if b {
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newVal = null.NewInt16(int16(sd.nextInt()), b)
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} else {
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newVal = null.NewInt16(0, false)
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}
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case typeNullInt32:
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if b {
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newVal = null.NewInt32(int32(sd.nextInt()), b)
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} else {
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newVal = null.NewInt32(0, false)
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}
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case typeNullInt64:
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if b {
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newVal = null.NewInt64(int64(sd.nextInt()), b)
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} else {
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newVal = null.NewInt64(0, false)
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}
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case typeNullUint:
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if b {
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newVal = null.NewUint(uint(sd.nextInt()), b)
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} else {
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newVal = null.NewUint(0, false)
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}
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case typeNullUint8:
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if b {
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newVal = null.NewUint8(uint8(sd.nextInt()), b)
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} else {
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newVal = null.NewUint8(0, false)
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}
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case typeNullUint16:
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if b {
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newVal = null.NewUint16(uint16(sd.nextInt()), b)
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} else {
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newVal = null.NewUint16(0, false)
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}
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case typeNullUint32:
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if b {
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newVal = null.NewUint32(uint32(sd.nextInt()), b)
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} else {
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newVal = null.NewUint32(0, false)
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}
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case typeNullUint64:
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if b {
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newVal = null.NewUint64(uint64(sd.nextInt()), b)
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} else {
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newVal = null.NewUint64(0, false)
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}
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}
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} else {
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switch kind {
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case reflect.Float32:
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newVal = float32(float32(sd.nextInt()%10)/10.0 + float32(sd.nextInt()%10))
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case reflect.Float64:
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newVal = float64(float64(sd.nextInt()%10)/10.0 + float64(sd.nextInt()%10))
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case reflect.Int:
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newVal = sd.nextInt()
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case reflect.Int8:
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newVal = int8(sd.nextInt())
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case reflect.Int16:
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newVal = int16(sd.nextInt())
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case reflect.Int32:
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newVal = int32(sd.nextInt())
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case reflect.Int64:
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newVal = int64(sd.nextInt())
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case reflect.Uint:
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newVal = uint(sd.nextInt())
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case reflect.Uint8:
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newVal = uint8(sd.nextInt())
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case reflect.Uint16:
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newVal = uint16(sd.nextInt())
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case reflect.Uint32:
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newVal = uint32(sd.nextInt())
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case reflect.Uint64:
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newVal = uint64(sd.nextInt())
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case reflect.Bool:
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var b bool
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if includeInvalid {
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b = sd.nextInt()%2 == 0
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} else {
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b = true
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}
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newVal = b
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case reflect.String:
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switch fieldType {
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case "interval":
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newVal = strconv.Itoa((sd.nextInt()%26)+2) + " days"
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case "uuid":
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newVal = uuid.NewV4().String()
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default:
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newVal = randStr(1, sd.nextInt())
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}
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case reflect.Slice:
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sliceVal := typ.Elem()
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if sliceVal.Kind() != reflect.Uint8 {
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return fmt.Errorf("unsupported slice type: %T", typ.String())
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}
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newVal = randByteSlice(5+rand.Intn(20), sd.nextInt())
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default:
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return fmt.Errorf("unsupported type: %T", typ.String())
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}
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}
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field.Set(reflect.ValueOf(newVal))
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return nil
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}
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const alphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
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func randStr(ln int, s int) string {
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str := make([]byte, ln)
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for i := 0; i < ln; i++ {
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str[i] = byte(alphabet[s%len(alphabet)])
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}
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return string(str)
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}
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func randByteSlice(ln int, s int) []byte {
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str := make([]byte, ln)
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for i := 0; i < ln; i++ {
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str[i] = byte(s % 256)
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}
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return str
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}
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