AdGuardHome/internal/aghtest/aghtest.go

46 lines
1.0 KiB
Go

// Package aghtest contains utilities for testing.
package aghtest
import (
"crypto/sha256"
"io"
"net"
"testing"
"github.com/AdguardTeam/golibs/log"
)
// ReplaceLogWriter moves logger output to w and uses Cleanup method of t to
// revert changes.
func ReplaceLogWriter(t testing.TB, w io.Writer) {
t.Helper()
prev := log.Writer()
t.Cleanup(func() { log.SetOutput(prev) })
log.SetOutput(w)
}
// ReplaceLogLevel sets logging level to l and uses Cleanup method of t to
// revert changes.
func ReplaceLogLevel(t testing.TB, l log.Level) {
t.Helper()
switch l {
case log.INFO, log.DEBUG, log.ERROR:
// Go on.
default:
t.Fatalf("wrong l value (must be one of %v, %v, %v)", log.INFO, log.DEBUG, log.ERROR)
}
prev := log.GetLevel()
t.Cleanup(func() { log.SetLevel(prev) })
log.SetLevel(l)
}
// HostToIPs is a helper that generates one IPv4 and one IPv6 address from host.
func HostToIPs(host string) (ipv4, ipv6 net.IP) {
hash := sha256.Sum256([]byte(host))
return net.IP(hash[:4]), net.IP(hash[4:20])
}