diff --git a/filebeat/input/filestream/environment_test.go b/filebeat/input/filestream/environment_test.go
index cc53d23a2147..1713a964c527 100644
--- a/filebeat/input/filestream/environment_test.go
+++ b/filebeat/input/filestream/environment_test.go
@@ -66,9 +66,7 @@ type registryEntry struct {
 }
 
 func newInputTestingEnvironment(t *testing.T) *inputTestingEnvironment {
-	if err := logp.DevelopmentSetup(logp.ToObserverOutput()); err != nil {
-		t.Fatalf("error setting up dev logging: %s", err)
-	}
+	logp.DevelopmentSetup(logp.ToObserverOutput())
 
 	t.Cleanup(func() {
 		if t.Failed() {
diff --git a/filebeat/input/filestream/fswatch_test.go b/filebeat/input/filestream/fswatch_test.go
index ffa9b9c510e4..f9f58734360c 100644
--- a/filebeat/input/filestream/fswatch_test.go
+++ b/filebeat/input/filestream/fswatch_test.go
@@ -265,15 +265,14 @@ scanner:
 		ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
 		defer cancel()
 
-		err := logp.DevelopmentSetup(logp.ToObserverOutput())
-		require.NoError(t, err)
+		logp.DevelopmentSetup(logp.ToObserverOutput())
 
 		fw := createWatcherWithConfig(t, paths, cfgStr)
 		go fw.Run(ctx)
 
 		basename := "created.log"
 		filename := filepath.Join(dir, basename)
-		err = os.WriteFile(filename, nil, 0777)
+		err := os.WriteFile(filename, nil, 0777)
 		require.NoError(t, err)
 
 		t.Run("issues a warning in logs", func(t *testing.T) {
@@ -373,8 +372,7 @@ scanner:
 		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 		defer cancel()
 
-		err = logp.DevelopmentSetup(logp.ToObserverOutput())
-		require.NoError(t, err)
+		logp.DevelopmentSetup(logp.ToObserverOutput())
 
 		fw := createWatcherWithConfig(t, paths, cfgStr)
 
diff --git a/libbeat/autodiscover/autodiscover_test.go b/libbeat/autodiscover/autodiscover_test.go
index 8d977a4c4d4a..93918180a928 100644
--- a/libbeat/autodiscover/autodiscover_test.go
+++ b/libbeat/autodiscover/autodiscover_test.go
@@ -733,9 +733,7 @@ func printDebugLogsOnFailure(t *testing.T) {
 	// Use the following line to have the logs being printed
 	// in real time.
 	// logp.DevelopmentSetup(logp.WithLevel(logp.DebugLevel), logp.WithSelectors("*"))
-	if err := logp.DevelopmentSetup(logp.ToObserverOutput()); err != nil {
-		t.Fatalf("error setting up dev logging: %s", err)
-	}
+	logp.DevelopmentSetup(logp.ToObserverOutput())
 
 	t.Cleanup(func() {
 		if t.Failed() {
diff --git a/libbeat/cmd/instance/locks/lock_test.go b/libbeat/cmd/instance/locks/lock_test.go
index 8e112a1b3f72..6e20f1263903 100644
--- a/libbeat/cmd/instance/locks/lock_test.go
+++ b/libbeat/cmd/instance/locks/lock_test.go
@@ -30,11 +30,8 @@ import (
 )
 
 func TestMain(m *testing.M) {
-	err := logp.DevelopmentSetup()
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "error creating logger: %s\n", err)
-		os.Exit(1)
-	}
+	logp.DevelopmentSetup()
+
 	tmp, err := os.MkdirTemp("", "pidfile_test")
 	defer os.RemoveAll(tmp)
 	if err != nil {
diff --git a/libbeat/publisher/queue/queuetest/log.go b/libbeat/publisher/queue/queuetest/log.go
index 04b1a1185645..ef11e1ea563f 100644
--- a/libbeat/publisher/queue/queuetest/log.go
+++ b/libbeat/publisher/queue/queuetest/log.go
@@ -25,8 +25,6 @@ import (
 	"sync"
 	"testing"
 
-	"gotest.tools/assert"
-
 	"github.com/elastic/elastic-agent-libs/logp"
 )
 
@@ -88,8 +86,7 @@ func withOptLogOutput(capture bool, fn func(*testing.T)) func(*testing.T) {
 		if debug {
 			level = logp.DebugLevel
 		}
-		err = logp.DevelopmentSetup(logp.WithLevel(level))
-		assert.NilError(t, err)
+		logp.DevelopmentSetup(logp.WithLevel(level))
 		fn(t)
 	}
 }
diff --git a/metricbeat/module/system/filesystem/filesystem_test.go b/metricbeat/module/system/filesystem/filesystem_test.go
index 94c1a4151660..627cbf73f985 100644
--- a/metricbeat/module/system/filesystem/filesystem_test.go
+++ b/metricbeat/module/system/filesystem/filesystem_test.go
@@ -34,8 +34,7 @@ import (
 func TestFetch(t *testing.T) {
 	f := mbtest.NewReportingMetricSetV2Error(t, getConfig())
 	events, errs := mbtest.ReportingFetchV2Error(f)
-	err := logp.DevelopmentSetup()
-	assert.NoError(t, err)
+	logp.DevelopmentSetup()
 	assert.Empty(t, errs)
 	if !assert.NotEmpty(t, events) {
 		t.FailNow()
diff --git a/metricbeat/module/system/process/process_test.go b/metricbeat/module/system/process/process_test.go
index d9f57f2e3fee..5c1f59f7a3cb 100644
--- a/metricbeat/module/system/process/process_test.go
+++ b/metricbeat/module/system/process/process_test.go
@@ -24,7 +24,6 @@ import (
 	"time"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
 
 	mbtest "github.com/elastic/beats/v7/metricbeat/mb/testing"
 	_ "github.com/elastic/beats/v7/metricbeat/module/system"
@@ -33,8 +32,7 @@ import (
 )
 
 func TestFetch(t *testing.T) {
-	err := logp.DevelopmentSetup()
-	require.NoError(t, err, "could not set the logger to DevelopmentSetup")
+	logp.DevelopmentSetup()
 
 	f := mbtest.NewReportingMetricSetV2Error(t, getConfig())
 	events, errs := mbtest.ReportingFetchV2Error(f)
diff --git a/metricbeat/module/system/process_summary/process_summary_test.go b/metricbeat/module/system/process_summary/process_summary_test.go
index eab6016a7884..7ec35634e434 100644
--- a/metricbeat/module/system/process_summary/process_summary_test.go
+++ b/metricbeat/module/system/process_summary/process_summary_test.go
@@ -42,8 +42,7 @@ func TestData(t *testing.T) {
 }
 
 func TestFetch(t *testing.T) {
-	err := logp.DevelopmentSetup()
-	require.NoError(t, err)
+	logp.DevelopmentSetup()
 	f := mbtest.NewReportingMetricSetV2Error(t, getConfig())
 	events, errs := mbtest.ReportingFetchV2Error(f)
 
@@ -53,14 +52,13 @@ func TestFetch(t *testing.T) {
 	t.Logf("%s/%s event: %+v", f.Module().Name(), f.Name(),
 		event.StringToPrint())
 
-	_, err = event.GetValue("system.process.summary")
+	_, err := event.GetValue("system.process.summary")
 	require.NoError(t, err)
 
 }
 
 func TestStateNames(t *testing.T) {
-	err := logp.DevelopmentSetup()
-	require.NoError(t, err)
+	logp.DevelopmentSetup()
 	f := mbtest.NewReportingMetricSetV2Error(t, getConfig())
 	events, errs := mbtest.ReportingFetchV2Error(f)
 
diff --git a/packetbeat/protos/dns/dns_test.go b/packetbeat/protos/dns/dns_test.go
index 567341ccc215..cbb2e201d8ab 100644
--- a/packetbeat/protos/dns/dns_test.go
+++ b/packetbeat/protos/dns/dns_test.go
@@ -97,7 +97,7 @@ func newDNS(store *eventStore, verbose bool) *dnsPlugin {
 	if verbose {
 		level = logp.DebugLevel
 	}
-	_ = logp.DevelopmentSetup(
+	logp.DevelopmentSetup(
 		logp.WithLevel(level),
 		logp.WithSelectors("dns"),
 	)
diff --git a/x-pack/metricbeat/module/gcp/metrics/metrics_requester_test.go b/x-pack/metricbeat/module/gcp/metrics/metrics_requester_test.go
index cbbb6defc3ea..2b058de2beed 100644
--- a/x-pack/metricbeat/module/gcp/metrics/metrics_requester_test.go
+++ b/x-pack/metricbeat/module/gcp/metrics/metrics_requester_test.go
@@ -76,10 +76,7 @@ func TestGetTimeIntervalAligner(t *testing.T) {
 }
 
 func TestGetFilterForMetric(t *testing.T) {
-	if err := logp.DevelopmentSetup(logp.ToObserverOutput()); err != nil {
-		t.Fatalf("cannot initialise logger on development mode: %+v", err)
-	}
-
+	logp.DevelopmentSetup(logp.ToObserverOutput())
 	var logger = logp.NewLogger("TestGetFilterForMetric")
 
 	cases := []struct {