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
5package http2
6
7import (
8	"fmt"
9	"strings"
10	"testing"
11)
12
13func 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}
34