init - add project files

This commit is contained in:
2025-03-06 23:54:11 -05:00
commit e724ff1120
1363 changed files with 897467 additions and 0 deletions

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package internal
import (
"database/sql"
"database/sql/driver"
"fmt"
"github.com/go-jet/jet/v2/internal/utils/min"
"reflect"
"strconv"
"time"
)
var (
castOverFlowError = fmt.Errorf("cannot cast a negative value to an unsigned value, buffer overflow error")
)
// NullBool struct
type NullBool struct {
sql.NullBool
}
// Scan implements the Scanner interface.
func (nb *NullBool) Scan(value interface{}) error {
switch v := value.(type) {
case bool:
nb.Bool, nb.Valid = v, true
case int8, int16, int32, int64, int:
intVal := reflect.ValueOf(v).Int()
if intVal != 0 && intVal != 1 {
return fmt.Errorf("can't assign %T(%d) to bool", value, value)
}
nb.Bool = intVal == 1
nb.Valid = true
case uint8, uint16, uint32, uint64, uint:
uintVal := reflect.ValueOf(v).Uint()
if uintVal != 0 && uintVal != 1 {
return fmt.Errorf("can't assign %T(%d) to bool", value, value)
}
nb.Bool = uintVal == 1
nb.Valid = true
default:
return nb.NullBool.Scan(value)
}
return nil
}
// NullTime struct
type NullTime struct {
sql.NullTime
}
// Scan implements the Scanner interface.
func (nt *NullTime) Scan(value interface{}) error {
err := nt.NullTime.Scan(value)
if err == nil {
return nil
}
// Some of the drivers (pgx, mysql) are not parsing all of the time formats(date, time with time zone,...) and are just forwarding string value.
// At this point we try to parse those values using some of the predefined formats
nt.Time, nt.Valid = tryParseAsTime(value)
if !nt.Valid {
return fmt.Errorf("can't scan time.Time from %q", value)
}
return nil
}
var formats = []string{
"2006-01-02 15:04:05-07:00", // sqlite
"2006-01-02 15:04:05.999999", // go-sql-driver/mysql
"15:04:05-07", // pgx
"15:04:05.999999", // pgx
}
func tryParseAsTime(value interface{}) (time.Time, bool) {
var timeStr string
switch v := value.(type) {
case string:
timeStr = v
case []byte:
timeStr = string(v)
case int64:
return time.Unix(v, 0), true // sqlite
default:
return time.Time{}, false
}
for _, format := range formats {
formatLen := min.Int(len(format), len(timeStr))
t, err := time.Parse(format[:formatLen], timeStr)
if err != nil {
continue
}
return t, true
}
return time.Time{}, false
}
// NullUInt64 struct
type NullUInt64 struct {
UInt64 uint64
Valid bool
}
// Scan implements the Scanner interface.
func (n *NullUInt64) Scan(value interface{}) error {
var stringValue string
switch v := value.(type) {
case nil:
n.Valid = false
return nil
case int64:
if v < 0 {
return castOverFlowError
}
n.UInt64, n.Valid = uint64(v), true
return nil
case int32:
if v < 0 {
return castOverFlowError
}
n.UInt64, n.Valid = uint64(v), true
return nil
case int16:
if v < 0 {
return castOverFlowError
}
n.UInt64, n.Valid = uint64(v), true
return nil
case int8:
if v < 0 {
return castOverFlowError
}
n.UInt64, n.Valid = uint64(v), true
return nil
case int:
if v < 0 {
return castOverFlowError
}
n.UInt64, n.Valid = uint64(v), true
return nil
case uint64:
n.UInt64, n.Valid = v, true
return nil
case uint32:
n.UInt64, n.Valid = uint64(v), true
return nil
case uint16:
n.UInt64, n.Valid = uint64(v), true
return nil
case uint8:
n.UInt64, n.Valid = uint64(v), true
return nil
case uint:
n.UInt64, n.Valid = uint64(v), true
return nil
case []byte:
stringValue = string(v)
case string:
stringValue = v
default:
return fmt.Errorf("can't scan uint64 from %v", value)
}
uintV, err := strconv.ParseUint(stringValue, 10, 64)
if err != nil {
return err
}
n.UInt64 = uintV
n.Valid = true
return nil
}
// Value implements the driver Valuer interface.
func (n NullUInt64) Value() (driver.Value, error) {
if !n.Valid {
return nil, nil
}
return n.UInt64, nil
}

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package internal
import (
"fmt"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"testing"
"time"
)
func TestNullBool(t *testing.T) {
var nullBool NullBool
require.NoError(t, nullBool.Scan(nil))
require.Equal(t, nullBool.Valid, false)
require.NoError(t, nullBool.Scan(int64(1)))
require.Equal(t, nullBool.Valid, true)
value, _ := nullBool.Value()
require.Equal(t, value, true)
require.NoError(t, nullBool.Scan(uint32(0)))
require.Equal(t, nullBool.Valid, true)
value, _ = nullBool.Value()
require.Equal(t, value, false)
require.EqualError(t, nullBool.Scan(uint16(22)), "can't assign uint16(22) to bool")
}
func TestNullTime(t *testing.T) {
var nullTime NullTime
require.NoError(t, nullTime.Scan(nil))
require.Equal(t, nullTime.Valid, false)
time := time.Now()
require.NoError(t, nullTime.Scan(time))
require.Equal(t, nullTime.Valid, true)
value, _ := nullTime.Value()
require.Equal(t, value, time)
require.NoError(t, nullTime.Scan([]byte("13:10:11")))
require.Equal(t, nullTime.Valid, true)
value, _ = nullTime.Value()
require.Equal(t, fmt.Sprintf("%v", value), "0000-01-01 13:10:11 +0000 UTC")
require.NoError(t, nullTime.Scan("13:10:11"))
require.Equal(t, nullTime.Valid, true)
value, _ = nullTime.Value()
require.Equal(t, fmt.Sprintf("%v", value), "0000-01-01 13:10:11 +0000 UTC")
require.Error(t, nullTime.Scan(12), "can't scan time.Time from 12")
}
func TestNullUInt64(t *testing.T) {
var nullUInt64 NullUInt64
require.NoError(t, nullUInt64.Scan(nil))
require.Equal(t, nullUInt64.Valid, false)
require.NoError(t, nullUInt64.Scan(int64(11)))
require.Equal(t, nullUInt64.Valid, true)
value, _ := nullUInt64.Value()
require.Equal(t, value, uint64(11))
require.NoError(t, nullUInt64.Scan(uint64(11)))
require.Equal(t, nullUInt64.Valid, true)
value, _ = nullUInt64.Value()
require.Equal(t, value, uint64(11))
require.NoError(t, nullUInt64.Scan(int32(32)))
require.Equal(t, nullUInt64.Valid, true)
value, _ = nullUInt64.Value()
require.Equal(t, value, uint64(32))
require.NoError(t, nullUInt64.Scan(uint32(32)))
require.Equal(t, nullUInt64.Valid, true)
value, _ = nullUInt64.Value()
require.Equal(t, value, uint64(32))
require.NoError(t, nullUInt64.Scan(int16(20)))
require.Equal(t, nullUInt64.Valid, true)
value, _ = nullUInt64.Value()
require.Equal(t, value, uint64(20))
require.NoError(t, nullUInt64.Scan(uint16(16)))
require.Equal(t, nullUInt64.Valid, true)
value, _ = nullUInt64.Value()
require.Equal(t, value, uint64(16))
require.NoError(t, nullUInt64.Scan(int8(30)))
require.Equal(t, nullUInt64.Valid, true)
value, _ = nullUInt64.Value()
require.Equal(t, value, uint64(30))
require.NoError(t, nullUInt64.Scan(uint8(30)))
require.Equal(t, nullUInt64.Valid, true)
value, _ = nullUInt64.Value()
require.Equal(t, value, uint64(30))
require.Error(t, nullUInt64.Scan("text"), "can't scan int32 from text")
//Validate negative use cases
err := nullUInt64.Scan(int64(-5))
assert.NotNil(t, err)
assert.Error(t, err, castOverFlowError)
//Validate negative use cases
err = nullUInt64.Scan(-5)
assert.NotNil(t, err)
assert.Error(t, err, castOverFlowError)
//Validate negative use cases
err = nullUInt64.Scan(int32(-5))
assert.NotNil(t, err)
assert.Error(t, err, castOverFlowError)
//Validate negative use cases
err = nullUInt64.Scan(int16(-5))
assert.NotNil(t, err)
assert.Error(t, err, castOverFlowError)
//Validate negative use cases
err = nullUInt64.Scan(int8(-5))
assert.NotNil(t, err)
assert.Error(t, err, castOverFlowError)
}