diff --git a/CHANGELOG.md b/CHANGELOG.md
index 63909d436b8..393a5e59ede 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,10 @@ and this project adheres to
 - This changelog :-) (#2294).
 - `HACKING.md`, a guide for developers.
 
+### Changed
+
+- Improved tests output (#2273).
+
 ### Fixed
 
-- Infinite loop in `/dhcp/find_active_dhcp` (#2301).
+- Infinite loop in `/dhcp/find_active_dhcp` (#2301).
\ No newline at end of file
diff --git a/internal/agherr/agherr_test.go b/internal/agherr/agherr_test.go
index 21e3af79968..3940bdee581 100644
--- a/internal/agherr/agherr_test.go
+++ b/internal/agherr/agherr_test.go
@@ -5,9 +5,14 @@ import (
 	"fmt"
 	"testing"
 
+	"github.com/AdguardTeam/AdGuardHome/internal/testutil"
 	"github.com/stretchr/testify/assert"
 )
 
+func TestMain(m *testing.M) {
+	testutil.DiscardLogOutput(m)
+}
+
 func TestError_Error(t *testing.T) {
 	testCases := []struct {
 		name string
diff --git a/internal/dhcpd/dhcpd_test.go b/internal/dhcpd/dhcpd_test.go
index c57ff36b113..58b88bda68f 100644
--- a/internal/dhcpd/dhcpd_test.go
+++ b/internal/dhcpd/dhcpd_test.go
@@ -9,9 +9,14 @@ import (
 	"testing"
 	"time"
 
+	"github.com/AdguardTeam/AdGuardHome/internal/testutil"
 	"github.com/stretchr/testify/assert"
 )
 
+func TestMain(m *testing.M) {
+	testutil.DiscardLogOutput(m)
+}
+
 func testNotify(flags uint32) {
 }
 
diff --git a/internal/dhcpd/nclient4/client_test.go b/internal/dhcpd/nclient4/client_test.go
index 79501b28acb..353a9ed7ab0 100644
--- a/internal/dhcpd/nclient4/client_test.go
+++ b/internal/dhcpd/nclient4/client_test.go
@@ -17,11 +17,16 @@ import (
 	"testing"
 	"time"
 
+	"github.com/AdguardTeam/AdGuardHome/internal/testutil"
 	"github.com/hugelgupf/socketpair"
 	"github.com/insomniacslk/dhcp/dhcpv4"
 	"github.com/insomniacslk/dhcp/dhcpv4/server4"
 )
 
+func TestMain(m *testing.M) {
+	testutil.DiscardLogOutput(m)
+}
+
 type handler struct {
 	mu       sync.Mutex
 	received []*dhcpv4.DHCPv4
diff --git a/internal/dnsfilter/dnsfilter_test.go b/internal/dnsfilter/dnsfilter_test.go
index f431a1e4779..357e24c49ad 100644
--- a/internal/dnsfilter/dnsfilter_test.go
+++ b/internal/dnsfilter/dnsfilter_test.go
@@ -5,11 +5,16 @@ import (
 	"net"
 	"testing"
 
+	"github.com/AdguardTeam/AdGuardHome/internal/testutil"
 	"github.com/AdguardTeam/urlfilter/rules"
 	"github.com/miekg/dns"
 	"github.com/stretchr/testify/assert"
 )
 
+func TestMain(m *testing.M) {
+	testutil.DiscardLogOutput(m)
+}
+
 var setts RequestFilteringSettings
 
 // HELPERS
@@ -290,7 +295,6 @@ func TestSafeSearchCacheGoogle(t *testing.T) {
 		t.Fatalf("Failed to lookup for %s", safeDomain)
 	}
 
-	t.Logf("IP addresses: %v", ips)
 	ip := ips[0]
 	for _, i := range ips {
 		if i.To4() != nil {
diff --git a/internal/dnsforward/dnsforward_test.go b/internal/dnsforward/dnsforward_test.go
index 55a56d9ae1a..ab2d1b720e2 100644
--- a/internal/dnsforward/dnsforward_test.go
+++ b/internal/dnsforward/dnsforward_test.go
@@ -18,6 +18,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/AdguardTeam/AdGuardHome/internal/testutil"
 	"github.com/AdguardTeam/AdGuardHome/internal/util"
 
 	"github.com/AdguardTeam/AdGuardHome/internal/dhcpd"
@@ -28,6 +29,10 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
+func TestMain(m *testing.M) {
+	testutil.DiscardLogOutput(m)
+}
+
 const (
 	tlsServerName     = "testdns.adguard.com"
 	testMessagesCount = 10
diff --git a/internal/home/auth_test.go b/internal/home/auth_test.go
index a4829b93279..dd2b68b36b5 100644
--- a/internal/home/auth_test.go
+++ b/internal/home/auth_test.go
@@ -9,9 +9,14 @@ import (
 	"testing"
 	"time"
 
+	"github.com/AdguardTeam/AdGuardHome/internal/testutil"
 	"github.com/stretchr/testify/assert"
 )
 
+func TestMain(m *testing.M) {
+	testutil.DiscardLogOutput(m)
+}
+
 func prepareTestDir() string {
 	const dir = "./agh-test"
 	_ = os.RemoveAll(dir)
@@ -85,9 +90,11 @@ type testResponseWriter struct {
 func (w *testResponseWriter) Header() http.Header {
 	return w.hdr
 }
+
 func (w *testResponseWriter) Write([]byte) (int, error) {
 	return 0, nil
 }
+
 func (w *testResponseWriter) WriteHeader(statusCode int) {
 	w.statusCode = statusCode
 }
diff --git a/internal/home/home_test.go b/internal/home/home_test.go
index c78aee52d41..3a4db3975f8 100644
--- a/internal/home/home_test.go
+++ b/internal/home/home_test.go
@@ -1,5 +1,7 @@
 // +build !race
 
+// TODO(e.burkov): remove this weird buildtag.
+
 package home
 
 import (
diff --git a/internal/querylog/qlog_test.go b/internal/querylog/qlog_test.go
index 078d39fe3b2..35f33b99a86 100644
--- a/internal/querylog/qlog_test.go
+++ b/internal/querylog/qlog_test.go
@@ -8,10 +8,15 @@ import (
 	"github.com/AdguardTeam/dnsproxy/proxyutil"
 
 	"github.com/AdguardTeam/AdGuardHome/internal/dnsfilter"
+	"github.com/AdguardTeam/AdGuardHome/internal/testutil"
 	"github.com/miekg/dns"
 	"github.com/stretchr/testify/assert"
 )
 
+func TestMain(m *testing.M) {
+	testutil.DiscardLogOutput(m)
+}
+
 func prepareTestDir() string {
 	const dir = "./agh-test"
 	_ = os.RemoveAll(dir)
diff --git a/internal/stats/stats_test.go b/internal/stats/stats_test.go
index 21e728f3a86..3a4bed66b7f 100644
--- a/internal/stats/stats_test.go
+++ b/internal/stats/stats_test.go
@@ -7,9 +7,14 @@ import (
 	"sync/atomic"
 	"testing"
 
+	"github.com/AdguardTeam/AdGuardHome/internal/testutil"
 	"github.com/stretchr/testify/assert"
 )
 
+func TestMain(m *testing.M) {
+	testutil.DiscardLogOutput(m)
+}
+
 func UIntArrayEquals(a, b []uint64) bool {
 	if len(a) != len(b) {
 		return false
diff --git a/internal/testutil/testutil.go b/internal/testutil/testutil.go
new file mode 100644
index 00000000000..f51062652a4
--- /dev/null
+++ b/internal/testutil/testutil.go
@@ -0,0 +1,19 @@
+// Package testutil contains utilities for testing.
+package testutil
+
+import (
+	"io/ioutil"
+	"os"
+	"testing"
+
+	"github.com/AdguardTeam/golibs/log"
+)
+
+// DiscardLogOutput runs tests with discarded logger output.
+func DiscardLogOutput(m *testing.M) {
+	// TODO(e.burkov): Refactor code and tests to not use the global mutable
+	// logger.
+	log.SetOutput(ioutil.Discard)
+
+	os.Exit(m.Run())
+}
diff --git a/internal/update/update_test.go b/internal/update/update_test.go
index 44013960548..5616104ab58 100644
--- a/internal/update/update_test.go
+++ b/internal/update/update_test.go
@@ -8,9 +8,14 @@ import (
 	"os"
 	"testing"
 
+	"github.com/AdguardTeam/AdGuardHome/internal/testutil"
 	"github.com/stretchr/testify/assert"
 )
 
+func TestMain(m *testing.M) {
+	testutil.DiscardLogOutput(m)
+}
+
 func startHTTPServer(data string) (net.Listener, uint16) {
 	mux := http.NewServeMux()
 	mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
diff --git a/internal/util/auto_hosts_test.go b/internal/util/auto_hosts_test.go
index 9084daba9b8..04911142eb5 100644
--- a/internal/util/auto_hosts_test.go
+++ b/internal/util/auto_hosts_test.go
@@ -8,10 +8,15 @@ import (
 	"testing"
 	"time"
 
+	"github.com/AdguardTeam/AdGuardHome/internal/testutil"
 	"github.com/miekg/dns"
 	"github.com/stretchr/testify/assert"
 )
 
+func TestMain(m *testing.M) {
+	testutil.DiscardLogOutput(m)
+}
+
 func prepareTestDir() string {
 	const dir = "./agh-test"
 	_ = os.RemoveAll(dir)