// Write is never called with an empty buffer.
type testNonEmptyWriter struct{ io.Writer }

func (w testNonEmptyWriter) Write(b []byte) (int, error) {
	if len(b) == 0 {
		return 0, errors.New("unexpected empty Write call")
	}
	return w.Writer.Write(b)
}

func TestFileWriter(t *testing.T) {
	type (
		testWrite struct { // Write(str) == (wantCnt, wantErr)
			str     string

				// the CopyObject API does not require that the caller send us this final checksum, we need
				// to compute it server-side, with the same type as the source object.
				if dstOpts.WantChecksum != nil && dstOpts.WantChecksum.Type.IsMultipartComposite() {
					dstOpts.WantServerSideChecksumType = dstOpts.WantChecksum.Type.Base()
					srcInfo.Reader.AddServerSideChecksumHasher(dstOpts.WantServerSideChecksumType)
					dstOpts.WantChecksum = nil
				}

Et quand vous retournez une `Response`, **FastAPI** la transmet directement.

Elle ne fera aucune conversion de données avec les modèles Pydantic, elle ne convertira pas le contenu en un type quelconque.

Cela vous donne beaucoup de flexibilité. Vous pouvez retourner n'importe quel type de données, surcharger n'importe quelle déclaration ou validation de données.

## Utiliser le `jsonable_encoder` dans une `Response`

package cmd

import (
	"context"
	"os"
	"os/exec"
	"runtime"
	"syscall"

	xioutil "github.com/minio/minio/internal/ioutil"
)

// Type of service signals currently supported.
type serviceSignal int

const (
	serviceRestart       serviceSignal = iota // Restarts the server.
	serviceStop                               // Stops the server.

/**
 * SMB1 Tree Connect AndX response implementation.
 * Handles server responses to tree connect requests in SMB1 protocol, providing
 * information about the connected share including service type and DFS capabilities.
 *
 * @author mbechler
 */
public class SmbComTreeConnectAndXResponse extends AndXServerMessageBlock implements TreeConnectResponse {

    private static final int SMB_SUPPORT_SEARCH_BITS = 0x0001;

```http
https://example.com/items/?limit=10&tool=plumbus
```

Він отримає відповідь з **помилкою**, яка повідомить, що query параметр `tool ` не дозволено:

```json
{
    "detail": [
        {
            "type": "extra_forbidden",
            "loc": ["query", "tool"],
            "msg": "Extra inputs are not permitted",
            "input": "plumbus"
        }
    ]
}
```

## Підсумок

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package lex

import (
	"text/scanner"

	"cmd/internal/src"
)

// A Slice reads from a slice of Tokens.
type Slice struct {
	tokens []Token
	base   *src.PosBase
	line   int
	pos    int
}

func NewSlice(base *src.PosBase, line int, tokens []Token) *Slice {
	return &Slice{
		tokens: tokens,
		base:   base,

                "path",
                "item_id"
            ],
            "msg": "value is not a valid integer",
            "type": "type_error.integer"
        }
    ]
}
```

👆 🔜 🤚 ✍ ⏬, ⏮️:

```
1 validation error
path -> item_id
  value is not a valid integer (type=type_error.integer)
```

#### `RequestValidationError` 🆚 `ValidationError`

/// warning

                "item_id"
            ],
            "msg": "value is not a valid integer",
            "type": "type_error.integer"
        }
    ]
}
```

Ви отримаєте текстову версію:

```
1 validation error
path -> item_id
  value is not a valid integer (type=type_error.integer)
```

#### `RequestValidationError` проти `ValidationError`

/// warning | Увага

	t.Skipf("This test case skipped, because of gaussdb not support pgcrypto extension and gen_random_uuid() function")
	if DB.Dialector.Name() != "gaussdb" {
		t.Skip()
	}

	type Yasuo struct {
		// TODO: function gen_random_uuid() does not exist
		ID        string `gorm:"default:gen_random_uuid()"`
		Name      string
		CreatedAt time.Time `gorm:"type:TIMESTAMP WITHOUT TIME ZONE"`