func TestRaceAnnounceThreads(t *testing.T) {
	const N = 7
	allDone := make(chan bool, N)

	var x int
	_ = x

	var f, g, h func()
	f = func() {
		x = 1
		go g()
		go func() {
			x = 1
			allDone <- true
		}()
		x = 2
		allDone <- true
	}

	g = func() {
		for i := 0; i < 2; i++ {
			go func() {
				x = 1
				allDone <- true
			}()
			allDone <- true
		}
	}

	h = func() {
		x = 1

John Howard <******@****.***> 1603485929 -0700

// #include <unistd.h>
// #include <sys/types.h>
//
// pthread_t *t = NULL;
// pthread_mutex_t mu;
// int nts = 0;
// int all_done = 0;
//
// static void *aFn(void *vargp) {
//   int done = 0;
//   while (!done) {
//     usleep(100);
//     pthread_mutex_lock(&mu);
//     done = all_done;
//     pthread_mutex_unlock(&mu);
//   }
//   return NULL;
// }
//
// void trial(int argc) {
//   int i;

from fastapi import FastAPI, Response

app = FastAPI()


@app.get("/headers-and-object/")
def get_headers(response: Response):
    response.headers["X-Cat-Dog"] = "alone in the world"

from fastapi import FastAPI
from fastapi.responses import JSONResponse

app = FastAPI()


@app.get("/headers/")
def get_headers():
    content = {"message": "Hello World"}
    headers = {"X-Cat-Dog": "alone in the world", "Content-Language": "en-US"}

def test_path_operation():
    response = client.get("/headers-and-object/")
    assert response.status_code == 200, response.text
    assert response.json() == {"message": "Hello World"}

def test_path_operation():
    response = client.get("/headers/")
    assert response.status_code == 200, response.text
    assert response.json() == {"message": "Hello World"}
    assert response.headers["X-Cat-Dog"] == "alone in the world"

// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// stand-alone test to ensure case is triggered

package issue26390

type A = T

func (t *T) m() *A { return t }

	switch {
	case idle < 0 && interval >= 0:
		// Given that we can't set KeepAliveInterval alone, and this code path
		// is new, it doesn't exist before, so we just return an error.
		return syscall.WSAENOPROTOOPT
	case idle >= 0 && interval < 0:
		// Although we can't set KeepAliveTime alone either, this existing code
		// path had been backing up [SetKeepAlivePeriod] which used to be set both

// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package p

// Embedding stand-alone type parameters is not permitted for now. Disabled.

/*
import "fmt"

// Minimal test case.
func _[T interface{~T}](x T) T{
	return x
}

// Test case from issue.
type constr[T any] interface {
	~T
}