hostTests: []nssHostTest{
				{"x.com", "myhostname", hostLookupDNSFiles},
			},
		},
	}

	origGetHostname := getHostname
	defer func() { getHostname = origGetHostname }()
	defer setSystemNSS(getSystemNSS(), 0)
	conf, err := newResolvConfTest()
	if err != nil {
		t.Fatal(err)
	}
	defer conf.teardown()

	for _, tt := range tests {
		if !conf.forceUpdateConf(tt.resolv, time.Now().Add(time.Hour)) {

	ch          chan struct{} // guards lastChecked and modTime
	lastChecked time.Time     // last time nsswitch.conf was checked

	mu      sync.Mutex // protects nssConf
	nssConf *nssConf
}

func getSystemNSS() *nssConf {
	nssConfig.tryUpdate()
	nssConfig.mu.Lock()
	conf := nssConfig.nssConf
	nssConfig.mu.Unlock()
	return conf
}

// init initializes conf and is only called via conf.initOnce.

		// We always return before this point.
		// The code below is for non-OpenBSD.
	}

	// Canonicalize the hostname by removing any trailing dot.
	hostname = stringslite.TrimSuffix(hostname, ".")

	nss := getSystemNSS()
	srcs := nss.sources["hosts"]
	// If /etc/nsswitch.conf doesn't exist or doesn't specify any
	// sources for "hosts", assume Go's DNS will work fine.

		t.Fatal(err)
	}
}

func TestLookupOrderFilesNoSuchHost(t *testing.T) {
	defer func(orig string) { hostsFilePath = orig }(hostsFilePath)
	if runtime.GOOS != "openbsd" {
		defer setSystemNSS(getSystemNSS(), 0)
		setSystemNSS(nssStr(t, "hosts: files"), time.Hour)
	}

	conf, err := newResolvConfTest()
	if err != nil {
		t.Fatal(err)
	}
	defer conf.teardown()