cmd/frostfs-node/config/apiclient/config_test.go

@@ -32,6 +32,6 @@ func TestApiclientSection(t *testing.T) {
 	configtest.ForEachFileType(path, fileConfigTest)
 
 	t.Run("ENV", func(t *testing.T) {
-		configtest.ForEnvFileType(path, fileConfigTest)
+		configtest.ForEnvFileType(t, path, fileConfigTest)
 	})
 }

cmd/frostfs-node/config/contracts/config_test.go

@@ -56,6 +56,6 @@ func TestContractsSection(t *testing.T) {
 	configtest.ForEachFileType(path, fileConfigTest)
 
 	t.Run("ENV", func(t *testing.T) {
-		configtest.ForEnvFileType(path, fileConfigTest)
+		configtest.ForEnvFileType(t, path, fileConfigTest)
 	})
 }

cmd/frostfs-node/config/control/config_test.go

@@ -32,6 +32,6 @@ func TestControlSection(t *testing.T) {
 	configtest.ForEachFileType(path, fileConfigTest)
 
 	t.Run("ENV", func(t *testing.T) {
-		configtest.ForEnvFileType(path, fileConfigTest)
+		configtest.ForEnvFileType(t, path, fileConfigTest)
 	})
 }

cmd/frostfs-node/config/engine/config_test.go

@@ -167,6 +167,6 @@ func TestEngineSection(t *testing.T) {
 	configtest.ForEachFileType(path, fileConfigTest)
 
 	t.Run("ENV", func(t *testing.T) {
-		configtest.ForEnvFileType(path, fileConfigTest)
+		configtest.ForEnvFileType(t, path, fileConfigTest)
 	})
 }

cmd/frostfs-node/config/grpc/config_test.go

@@ -49,6 +49,6 @@ func TestGRPCSection(t *testing.T) {
 	configtest.ForEachFileType(path, fileConfigTest)
 
 	t.Run("ENV", func(t *testing.T) {
-		configtest.ForEnvFileType(path, fileConfigTest)
+		configtest.ForEnvFileType(t, path, fileConfigTest)
 	})
 }

cmd/frostfs-node/config/logger/config_test.go

@@ -25,6 +25,6 @@ func TestLoggerSection_Level(t *testing.T) {
 	configtest.ForEachFileType(path, fileConfigTest)
 
 	t.Run("ENV", func(t *testing.T) {
-		configtest.ForEnvFileType(path, fileConfigTest)
+		configtest.ForEnvFileType(t, path, fileConfigTest)
 	})
 }

cmd/frostfs-node/config/metrics/config_test.go

@@ -34,6 +34,6 @@ func TestMetricsSection(t *testing.T) {
 	configtest.ForEachFileType(path, fileConfigTest)
 
 	t.Run("ENV", func(t *testing.T) {
-		configtest.ForEnvFileType(path, fileConfigTest)
+		configtest.ForEnvFileType(t, path, fileConfigTest)
 	})
 }

cmd/frostfs-node/config/morph/config_test.go

@@ -40,6 +40,6 @@ func TestMorphSection(t *testing.T) {
 	configtest.ForEachFileType(path, fileConfigTest)
 
 	t.Run("ENV", func(t *testing.T) {
-		configtest.ForEnvFileType(path, fileConfigTest)
+		configtest.ForEnvFileType(t, path, fileConfigTest)
 	})
 }

cmd/frostfs-node/config/node/config_test.go

@@ -162,6 +162,6 @@ func TestNodeSection(t *testing.T) {
 	configtest.ForEachFileType(path, fileConfigTest)
 
 	t.Run("ENV", func(t *testing.T) {
-		configtest.ForEnvFileType(path, fileConfigTest)
+		configtest.ForEnvFileType(t, path, fileConfigTest)
 	})
 }

cmd/frostfs-node/config/object/config_test.go

@@ -29,6 +29,6 @@ func TestObjectSection(t *testing.T) {
 	configtest.ForEachFileType(path, fileConfigTest)
 
 	t.Run("ENV", func(t *testing.T) {
-		configtest.ForEnvFileType(path, fileConfigTest)
+		configtest.ForEnvFileType(t, path, fileConfigTest)
 	})
 }

cmd/frostfs-node/config/policer/config_test.go

@@ -26,6 +26,6 @@ func TestPolicerSection(t *testing.T) {
 	configtest.ForEachFileType(path, fileConfigTest)
 
 	t.Run("ENV", func(t *testing.T) {
-		configtest.ForEnvFileType(path, fileConfigTest)
+		configtest.ForEnvFileType(t, path, fileConfigTest)
 	})
 }

cmd/frostfs-node/config/profiler/config_test.go

@@ -34,6 +34,6 @@ func TestProfilerSection(t *testing.T) {
 	configtest.ForEachFileType(path, fileConfigTest)
 
 	t.Run("ENV", func(t *testing.T) {
-		configtest.ForEnvFileType(path, fileConfigTest)
+		configtest.ForEnvFileType(t, path, fileConfigTest)
 	})
 }

cmd/frostfs-node/config/replicator/config_test.go

@@ -28,6 +28,6 @@ func TestReplicatorSection(t *testing.T) {
 	configtest.ForEachFileType(path, fileConfigTest)
 
 	t.Run("ENV", func(t *testing.T) {
-		configtest.ForEnvFileType(path, fileConfigTest)
+		configtest.ForEnvFileType(t, path, fileConfigTest)
 	})
 }

cmd/frostfs-node/config/test/config.go

@@ -4,8 +4,10 @@ import (
 	"bufio"
 	"os"
 	"strings"
+	"testing"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config"
+	"github.com/stretchr/testify/require"
 )
 
 func fromFile(path string) *config.Config {
@@ -18,10 +20,10 @@ func fromFile(path string) *config.Config {
 	)
 }
 
-func fromEnvFile(path string) *config.Config {
+func fromEnvFile(t testing.TB, path string) *config.Config {
 	var p config.Prm
 
-	loadEnv(path) // github.com/joho/godotenv can do that as well
+	loadEnv(t, path) // github.com/joho/godotenv can do that as well
 
 	return config.New(p)
 }
@@ -43,8 +45,8 @@ func ForEachFileType(pref string, f func(*config.Config)) {
 }
 
 // ForEnvFileType creates config from `<pref>.env` file.
-func ForEnvFileType(pref string, f func(*config.Config)) {
+func ForEnvFileType(t testing.TB, pref string, f func(*config.Config)) {
-	f(fromEnvFile(pref + ".env"))
+	f(fromEnvFile(t, pref+".env"))
 }
 
 // EmptyConfig returns config without any values and sections.
@@ -55,11 +57,9 @@ func EmptyConfig() *config.Config {
 }
 
 // loadEnv reads .env file, parses `X=Y` records and sets OS ENVs.
-func loadEnv(path string) {
+func loadEnv(t testing.TB, path string) {
 	f, err := os.Open(path)
-	if err != nil {
+	require.NoError(t, err, "can't open .env file")
-		panic("can't open .env file")
-	}
 
 	defer f.Close()
 
@@ -73,8 +73,6 @@ func loadEnv(path string) {
 		v = strings.Trim(v, `"`)
 
 		err = os.Setenv(k, v)
-		if err != nil {
+		require.NoError(t, err, "can't set environment variable")
-			panic("can't set environment variable")
-		}
 	}
 }

cmd/frostfs-node/config/tree/config_test.go

@@ -39,6 +39,6 @@ func TestTreeSection(t *testing.T) {
 	configtest.ForEachFileType(path, fileConfigTest)
 
 	t.Run("ENV", func(t *testing.T) {
-		configtest.ForEnvFileType(path, fileConfigTest)
+		configtest.ForEnvFileType(t, path, fileConfigTest)
 	})
 }

pkg/local_object_storage/blobovnicza/blobovnicza_test.go

@@ -64,7 +64,7 @@ func TestBlobovnicza(t *testing.T) {
 		WithPath(p),
 		WithObjectSizeLimit(objSizeLim),
 		WithFullSizeLimit(sizeLim),
-		WithLogger(test.NewLogger(false)),
+		WithLogger(test.NewLogger(t, false)),
 	)
 
 	defer os.Remove(p)

pkg/local_object_storage/blobstor/internal/blobstortest/get_range.go

@@ -28,7 +28,7 @@ func TestGetRange(t *testing.T, cons Constructor, min, max uint64) {
 
 	var start, stop uint64 = 11, 100
 	if uint64(len(payload)) < stop {
-		panic("unexpected: invalid test object generated")
+		t.Fatalf("unexpected: invalid test object generated")
 	}
 
 	var gPrm common.GetRangePrm

pkg/local_object_storage/blobstor/perf_test.go

@@ -103,7 +103,7 @@ func BenchmarkSubstorageReadPerf(b *testing.B) {
 				// Fill database
 				for i := 0; i < tt.size; i++ {
 					obj := objGen.Next()
-					addr := testutil.AddressFromObject(obj)
+					addr := testutil.AddressFromObject(b, obj)
 					raw, err := obj.Marshal()
 					require.NoError(b, err)
 					if _, err := st.Put(common.PutPrm{
@@ -159,7 +159,7 @@ func BenchmarkSubstorageWritePerf(b *testing.B) {
 				b.RunParallel(func(pb *testing.PB) {
 					for pb.Next() {
 						obj := gen.Next()
-						addr := testutil.AddressFromObject(obj)
+						addr := testutil.AddressFromObject(b, obj)
 						raw, err := obj.Marshal()
 						require.NoError(b, err)
 						if _, err := st.Put(common.PutPrm{
@@ -202,7 +202,7 @@ func BenchmarkSubstorageIteratePerf(b *testing.B) {
 				// Fill database
 				for i := 0; i < tt.size; i++ {
 					obj := objGen.Next()
-					addr := testutil.AddressFromObject(obj)
+					addr := testutil.AddressFromObject(b, obj)
 					raw, err := obj.Marshal()
 					require.NoError(b, err)
 					if _, err := st.Put(common.PutPrm{

pkg/local_object_storage/engine/delete_test.go

@@ -53,7 +53,7 @@ func TestDeleteBigObject(t *testing.T) {
 	s2 := testNewShard(t, 2)
 	s3 := testNewShard(t, 3)
 
-	e := testNewEngineWithShards(s1, s2, s3)
+	e := testNewEngineWithShards(t, s1, s2, s3)
 	e.log = &logger.Logger{Logger: zaptest.NewLogger(t)}
 	defer e.Close()
 

pkg/local_object_storage/engine/engine_test.go

@@ -48,7 +48,7 @@ func benchmarkExists(b *testing.B, shardNum int) {
 		shards[i] = testNewShard(b, i)
 	}
 
-	e := testNewEngineWithShards(shards...)
+	e := testNewEngineWithShards(b, shards...)
 	b.Cleanup(func() {
 		_ = e.Close()
 		_ = os.RemoveAll(b.Name())
@@ -73,14 +73,12 @@ func benchmarkExists(b *testing.B, shardNum int) {
 	}
 }
 
-func testNewEngineWithShards(shards ...*shard.Shard) *StorageEngine {
+func testNewEngineWithShards(t testing.TB, shards ...*shard.Shard) *StorageEngine {
 	engine := New()
 
 	for _, s := range shards {
 		pool, err := ants.NewPool(10, ants.WithNonblocking(true))
-		if err != nil {
+		require.NoError(t, err)
-			panic(err)
-		}
 
 		engine.shards[s.ID().String()] = hashedShard{
 			shardWrapper: shardWrapper{
@@ -172,5 +170,5 @@ func testNewEngineWithShardNum(t *testing.T, num int) *StorageEngine {
 		shards = append(shards, testNewShard(t, i))
 	}
 
-	return testNewEngineWithShards(shards...)
+	return testNewEngineWithShards(t, shards...)
 }

pkg/local_object_storage/engine/head_test.go

@@ -44,7 +44,7 @@ func TestHeadRaw(t *testing.T) {
 		s1 := testNewShard(t, 1)
 		s2 := testNewShard(t, 2)
 
-		e := testNewEngineWithShards(s1, s2)
+		e := testNewEngineWithShards(t, s1, s2)
 		defer e.Close()
 
 		var putPrmLeft shard.PutPrm

pkg/local_object_storage/engine/inhume_test.go

@@ -59,7 +59,7 @@ func TestStorageEngine_Inhume(t *testing.T) {
 		s1 := testNewShard(t, 1)
 		s2 := testNewShard(t, 2)
 
-		e := testNewEngineWithShards(s1, s2)
+		e := testNewEngineWithShards(t, s1, s2)
 		defer e.Close()
 
 		var putChild shard.PutPrm

pkg/local_object_storage/engine/list_test.go

@@ -16,7 +16,7 @@ import (
 func TestListWithCursor(t *testing.T) {
 	s1 := testNewShard(t, 1)
 	s2 := testNewShard(t, 2)
-	e := testNewEngineWithShards(s1, s2)
+	e := testNewEngineWithShards(t, s1, s2)
 
 	t.Cleanup(func() {
 		e.Close()

pkg/local_object_storage/internal/testutil/generators.go

@@ -2,10 +2,12 @@ package testutil
 
 import (
 	"encoding/binary"
+	"testing"
 
 	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/stretchr/testify/require"
 	"go.uber.org/atomic"
 	"golang.org/x/exp/rand"
 )
@@ -94,17 +96,16 @@ func (g *OverwriteObjGenerator) Next() *object.Object {
 	return generateObjectWithOIDWithCIDWithSize(id, cid.ID{}, g.ObjSize)
 }
 
-func AddressFromObject(obj *object.Object) oid.Address {
+func AddressFromObject(t testing.TB, obj *object.Object) oid.Address {
 	var addr oid.Address
-	if id, isSet := obj.ID(); isSet {
+
-		addr.SetObject(id)
+	id, isSet := obj.ID()
-	} else {
+	require.True(t, isSet, "object ID is not set")
-		panic("object ID is not set")
+	addr.SetObject(id)
-	}
+
-	if cid, isSet := obj.ContainerID(); isSet {
+	cid, isSet := obj.ContainerID()
-		addr.SetContainer(cid)
+	require.True(t, isSet, "container ID is not set")
-	} else {
+	addr.SetContainer(cid)
-		panic("container ID is not set")
+
-	}
 	return addr
 }

pkg/local_object_storage/internal/testutil/generators_test.go

@@ -39,7 +39,7 @@ func TestSeqObjGenerator(t *testing.T) {
 	for i := 1; i <= 10; i++ {
 		obj := gen.Next()
 		id, isSet := obj.ID()
-		addrs = append(addrs, AddressFromObject(obj).EncodeToString())
+		addrs = append(addrs, AddressFromObject(t, obj).EncodeToString())
 
 		require.True(t, isSet)
 		require.Equal(t, gen.ObjSize, uint64(len(obj.Payload())))

pkg/services/object/get/get_test.go

@@ -246,7 +246,7 @@ func TestGetLocalOnly(t *testing.T) {
 
 	newSvc := func(storage *testStorage) *Service {
 		svc := &Service{cfg: new(cfg)}
-		svc.log = test.NewLogger(false)
+		svc.log = test.NewLogger(t, false)
 		svc.localStorage = storage
 
 		return svc
@@ -507,7 +507,7 @@ func TestGetRemoteSmall(t *testing.T) {
 
 	newSvc := func(b *testPlacementBuilder, c *testClientCache) *Service {
 		svc := &Service{cfg: new(cfg)}
-		svc.log = test.NewLogger(false)
+		svc.log = test.NewLogger(t, false)
 		svc.localStorage = newTestStorage()
 
 		const curEpoch = 13
@@ -1640,7 +1640,7 @@ func TestGetFromPastEpoch(t *testing.T) {
 	c22.addResult(addr, obj, nil)
 
 	svc := &Service{cfg: new(cfg)}
-	svc.log = test.NewLogger(false)
+	svc.log = test.NewLogger(t, false)
 	svc.localStorage = newTestStorage()
 
 	const curEpoch = 13

pkg/services/object/search/search_test.go

@@ -152,7 +152,7 @@ func TestGetLocalOnly(t *testing.T) {
 
 	newSvc := func(storage *testStorage) *Service {
 		svc := &Service{cfg: new(cfg)}
-		svc.log = test.NewLogger(false)
+		svc.log = test.NewLogger(t, false)
 		svc.localStorage = storage
 
 		return svc
@@ -254,7 +254,7 @@ func TestGetRemoteSmall(t *testing.T) {
 
 	newSvc := func(b *testPlacementBuilder, c *testClientCache) *Service {
 		svc := &Service{cfg: new(cfg)}
-		svc.log = test.NewLogger(false)
+		svc.log = test.NewLogger(t, false)
 		svc.localStorage = newTestStorage()
 
 		const curEpoch = 13
@@ -363,7 +363,7 @@ func TestGetFromPastEpoch(t *testing.T) {
 	c22.addResult(idCnr, ids22, nil)
 
 	svc := &Service{cfg: new(cfg)}
-	svc.log = test.NewLogger(false)
+	svc.log = test.NewLogger(t, false)
 	svc.localStorage = newTestStorage()
 
 	const curEpoch = 13
@@ -476,7 +476,7 @@ func TestGetWithSessionToken(t *testing.T) {
 	w := new(simpleIDWriter)
 
 	svc := &Service{cfg: new(cfg)}
-	svc.log = test.NewLogger(false)
+	svc.log = test.NewLogger(t, false)
 	svc.localStorage = localStorage
 
 	const curEpoch = 13

pkg/services/tree/getsubtree_test.go

@@ -118,7 +118,10 @@ func TestGetSubTree(t *testing.T) {
 	})
 }
 
-var errSubTreeSend = errors.New("test error")
+var (
+	errSubTreeSend           = errors.New("send finished with error")
+	errSubTreeSendAfterError = errors.New("send was invoked after an error occurred")
+)
 
 type subTreeAcc struct {
 	grpc.ServerStream // to satisfy the interface
@@ -127,6 +130,8 @@ type subTreeAcc struct {
 	errIndex int
 }
 
+var _ TreeService_GetSubTreeServer = &subTreeAcc{}
+
 func (s *subTreeAcc) Send(r *GetSubTreeResponse) error {
 	s.seen = append(s.seen, r)
 	if s.errIndex >= 0 {
@@ -134,7 +139,7 @@ func (s *subTreeAcc) Send(r *GetSubTreeResponse) error {
 			return errSubTreeSend
 		}
 		if s.errIndex >= 0 && len(s.seen) > s.errIndex {
-			panic("called Send after an error was returned")
+			return errSubTreeSendAfterError
 		}
 	}
 	return nil

pkg/util/logger/test/logger.go

@@ -1,7 +1,10 @@
 package test
 
 import (
+	"testing"
+
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
+	"github.com/stretchr/testify/require"
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
 )
@@ -11,7 +14,7 @@ const sampling = 1000
 // NewLogger creates a new logger.
 //
 // If debug, development logger is created.
-func NewLogger(debug bool) *logger.Logger {
+func NewLogger(t testing.TB, debug bool) *logger.Logger {
 	var l logger.Logger
 	l.Logger = zap.L()
 
@@ -25,10 +28,7 @@ func NewLogger(debug bool) *logger.Logger {
 		cfg.EncoderConfig.EncodeLevel = zapcore.CapitalColorLevelEncoder
 
 		log, err := cfg.Build()
-		if err != nil {
+		require.NoError(t, err, "could not prepare logger")
-			panic("could not prepare logger: " + err.Error())
-		}
-
 		l.Logger = log
 	}
 

pkg/util/test/keys.go

@@ -6,7 +6,9 @@ import (
 	"crypto/rand"
 	"crypto/x509"
 	"encoding/hex"
-	"strconv"
+	"testing"
+
+	"github.com/stretchr/testify/require"
 )
 
 // Keys is a list of test private keys in hex format.
@@ -114,29 +116,22 @@ var Keys = []string{
 }
 
 // DecodeKey creates a test private key.
-func DecodeKey(i int) *ecdsa.PrivateKey {
+func DecodeKey(t testing.TB, i int) *ecdsa.PrivateKey {
 	if i < 0 {
 		key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
-		if err != nil {
+		require.NoError(t, err, "could not generate uniq key")
-			panic("could not generate uniq key")
-		}
 
 		return key
 	}
 
 	if current, size := i, len(Keys); current >= size {
-		panic("add more test keys, used " + strconv.Itoa(current) + " from " + strconv.Itoa(size))
+		t.Fatalf("add more test keys, used %d from %d", current, size)
 	}
 
 	buf, err := hex.DecodeString(Keys[i])
-	if err != nil {
+	require.NoError(t, err, "could not to decode hex string")
-		panic("could not hex.Decode: " + err.Error())
-	}
 
 	key, err := x509.ParseECPrivateKey(buf)
-	if err != nil {
+	require.NoError(t, err, "could not to parse ec private key")
-		panic("could x509.ParseECPrivateKey: " + err.Error())
-	}
-
 	return key
 }