"detail": [
                {
                    "ctx": {"pattern": "^fixedquery$"},
                    "loc": ["body", "q"],
                    "msg": 'string does not match regex "^fixedquery$"',
                    "type": "value_error.str.regex",
                }
            ]
        }
    )


@needs_py310
def test_openapi_schema():
    client = get_client()
    response = client.get("/openapi.json")

            "detail": [
                {
                    "ctx": {"pattern": "^fixedquery$"},
                    "loc": ["query", "q"],
                    "msg": 'string does not match regex "^fixedquery$"',
                    "type": "value_error.str.regex",
                }
            ]
        }
    )


@needs_py310
def test_openapi_schema():
    client = get_client()
    response = client.get("/openapi.json")

from typing import Annotated

from fastapi import FastAPI, Query

app = FastAPI()


@app.get("/items/")
async def read_items(
    q: Annotated[
        str | None, Query(min_length=3, max_length=50, regex="^fixedquery$")
    ] = None,
):
    results = {"items": [{"item_id": "Foo"}, {"item_id": "Bar"}]}
    if q:
        results.update({"q": q})

package main

import (
	"bufio"
	"bytes"
	"flag"
	"fmt"
	"log"
	"math"
	"os"
	"path"
	"regexp"
	"strconv"
	"strings"
	"time"
)

var (
	goroutinesRE, searchRE *regexp.Regexp

	// User input flags
	searchText           string
	goTime, less, margin time.Duration
)

func init() {

	}
}

// ExplainSQL generate SQL string with given parameters, the generated SQL is expected to be used in logger, execute it might introduce a SQL injection vulnerability
func ExplainSQL(sql string, numericPlaceholder *regexp.Regexp, escaper string, avars ...interface{}) string {
	var (
		convertParams func(interface{}, int)
		vars          = make([]string, len(avars))
	)

	convertParams = func(v interface{}, idx int) {

            // basedirSysProp is non regexp and basedir too
            path = pathPattern.replace("${" + basedirSysProp + "}", basedir);
            path = path.replace("\\", "/");
            // ---------------------------------------------------------------------------------
            // I'm not sure if this last regexp was really intended to disallow the usage of

			WantException:  false,
		},
		{ // case 4
			Args:           strings.Split("envoy --browser=false", " "),
			ExpectedRegexp: regexp.MustCompile(".*Error: specify a pod or --selector"),
			WantException:  true,
		},
		{ // case 5
			Args:           strings.Split("envoy --browser=false pod-123456-7890", " "),
			ExpectedRegexp: regexp.MustCompile("http://localhost:3456"),
			WantException:  false,

		t.Errorf("want output %q, got %q", want, got)
	}
	if want := 1; want != code {
		t.Errorf("want exit code %d, got %d", want, code)
	}
}

func TestExitCodeMissing(t *testing.T) {
	var wantErr *regexp.Regexp
	check := func(text string) {
		t.Helper()
		var out strings.Builder
		f, exitStr := newExitCodeFilter(&out)
		if want := "exitcode="; want != exitStr {

## 검증 추가

매개변수 `min_length` 또한 추가할 수 있습니다:

```Python hl_lines="9"
{!../../../docs_src/query_params_str_validations/tutorial003.py!}
```

## 정규식 추가

매개변수와 일치해야 하는 <abbr title="정규표현식(regular expression), regex 또는 regexp는 문자열 조회 패턴을 정의하는 문자들의 순열입니다">정규표현식</abbr>을 정의할 수 있습니다:

```Python hl_lines="10"
{!../../../docs_src/query_params_str_validations/tutorial004.py!}
```

이 특정 정규표현식은 전달 받은 매개변수 값을 검사합니다:

package testutil

import (
	"bytes"
	"regexp"
	"strings"
	"testing"

	"github.com/spf13/cobra"

	"istio.io/istio/pilot/test/util"
)

type TestCase struct {
	Args []string

	// Typically use one of the three
	ExpectedOutput string         // Expected constant output
	ExpectedRegexp *regexp.Regexp // Expected regexp output
	GoldenFilename string         // Expected output stored in golden file