golang.org/x/net@v0.25.1-0.20240516223405-c87a5b62e243/http2/gotrack_test.go (about)

     1  // Copyright 2014 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package http2
     6  
     7  import (
     8  	"fmt"
     9  	"strings"
    10  	"testing"
    11  )
    12  
    13  func TestGoroutineLock(t *testing.T) {
    14  	oldDebug := DebugGoroutines
    15  	DebugGoroutines = true
    16  	defer func() { DebugGoroutines = oldDebug }()
    17  
    18  	g := newGoroutineLock()
    19  	g.check()
    20  
    21  	sawPanic := make(chan interface{})
    22  	go func() {
    23  		defer func() { sawPanic <- recover() }()
    24  		g.check() // should panic
    25  	}()
    26  	e := <-sawPanic
    27  	if e == nil {
    28  		t.Fatal("did not see panic from check in other goroutine")
    29  	}
    30  	if !strings.Contains(fmt.Sprint(e), "wrong goroutine") {
    31  		t.Errorf("expected on see panic about running on the wrong goroutine; got %v", e)
    32  	}
    33  }