diff --git a/.golangci.yml b/.golangci.yml
index 672df6e..8935283 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -22,6 +22,11 @@ linters-settings:
 
 linters:
     enable-all: true
+    disable:
+      - scopelint
+      - maligned
+      - interfacer
+      - wrapcheck
 
 issues:
   # Excluding configuration per-path, per-linter, per-text and per-source
@@ -29,3 +34,7 @@ issues:
     - path: _test\.go
       linters:
         - gomnd
+    - path: _suite\.go
+      linters:
+        - exhaustivestruct
+        - gomnd
diff --git a/gob/encoding.go b/gob/encoding.go
index 715b60c..ff6969d 100644
--- a/gob/encoding.go
+++ b/gob/encoding.go
@@ -7,8 +7,10 @@ import (
 	"gitoa.ru/go-4devs/encoding"
 )
 
-var _ encoding.Decode = Decode
-var _ encoding.Encode = Encode
+var (
+	_ encoding.Decode = Decode
+	_ encoding.Encode = Encode
+)
 
 func Decode(r io.Reader, v interface{}) error {
 	return gob.NewDecoder(r).Decode(v)
diff --git a/gob/unmarshal.go b/gob/unmarshal.go
index b622c62..90946a0 100644
--- a/gob/unmarshal.go
+++ b/gob/unmarshal.go
@@ -7,8 +7,10 @@ import (
 	"gitoa.ru/go-4devs/encoding"
 )
 
-var _ encoding.Unmarshal = Unmarshal
-var _ encoding.Marshal = Marshal
+var (
+	_ encoding.Unmarshal = Unmarshal
+	_ encoding.Marshal   = Marshal
+)
 
 // Unmarshal by gob decoder.
 func Unmarshal(data []byte, v interface{}) error {
diff --git a/json/encoding.go b/json/encoding.go
index ceb9c35..722be61 100644
--- a/json/encoding.go
+++ b/json/encoding.go
@@ -7,8 +7,10 @@ import (
 	"gitoa.ru/go-4devs/encoding"
 )
 
-var _ encoding.Decode = Decode
-var _ encoding.Encode = Encode
+var (
+	_ encoding.Decode = Decode
+	_ encoding.Encode = Encode
+)
 
 func Decode(r io.Reader, v interface{}) error {
 	return json.NewDecoder(r).Decode(v)
diff --git a/test/decode_suite.go b/test/decode_suite.go
index 7ae1ed8..7bfc01e 100644
--- a/test/decode_suite.go
+++ b/test/decode_suite.go
@@ -16,6 +16,7 @@ type Data struct {
 	Time   time.Time
 	Struct SData
 }
+
 type SData struct {
 	ID int64
 }
@@ -36,6 +37,8 @@ type DecodeSuite struct {
 
 // RunSute run test by provider.
 func RunDecode(t *testing.T, decode encoding.Decode, data string) {
+	t.Helper()
+
 	cs := DecodeSuite{
 		decode: decode,
 		data:   bytes.NewBufferString(data),
@@ -43,6 +46,7 @@ func RunDecode(t *testing.T, decode encoding.Decode, data string) {
 
 	suite.Run(t, &cs)
 }
+
 func (ds *DecodeSuite) TestDecode() {
 	var d Data
 
diff --git a/toml/encoding.go b/toml/encoding.go
index 331e096..2259c0d 100644
--- a/toml/encoding.go
+++ b/toml/encoding.go
@@ -7,12 +7,15 @@ import (
 	"gitoa.ru/go-4devs/encoding"
 )
 
-var _ encoding.Decode = Decode
-var _ encoding.Encode = Encode
+var (
+	_ encoding.Decode = Decode
+	_ encoding.Encode = Encode
+)
 
 // Decode from reader to value.
 func Decode(r io.Reader, v interface{}) error {
 	_, err := toml.DecodeReader(r, v)
+
 	return err
 }
 
diff --git a/toml/encoding_test.go b/toml/encoding_test.go
index c7f4f81..f3228d6 100644
--- a/toml/encoding_test.go
+++ b/toml/encoding_test.go
@@ -15,5 +15,6 @@ id = 42
 `
 
 func TestDecode(t *testing.T) {
+	t.Parallel()
 	test.RunDecode(t, toml.Decode, data)
 }
diff --git a/xml/encoding.go b/xml/encoding.go
index a223127..bbdff5e 100644
--- a/xml/encoding.go
+++ b/xml/encoding.go
@@ -7,8 +7,10 @@ import (
 	"gitoa.ru/go-4devs/encoding"
 )
 
-var _ encoding.Decode = Decode
-var _ encoding.Encode = Encode
+var (
+	_ encoding.Decode = Decode
+	_ encoding.Encode = Encode
+)
 
 // Decode from xml.
 func Decode(r io.Reader, v interface{}) error {
diff --git a/yaml/encoding.go b/yaml/encoding.go
index 1f71bfb..d184f75 100644
--- a/yaml/encoding.go
+++ b/yaml/encoding.go
@@ -7,8 +7,10 @@ import (
 	"gopkg.in/yaml.v3"
 )
 
-var _ encoding.Decode = Decode
-var _ encoding.Encode = Encode
+var (
+	_ encoding.Decode = Decode
+	_ encoding.Encode = Encode
+)
 
 // Decode from reader to value.
 func Decode(r io.Reader, v interface{}) error {
diff --git a/yaml/encoding_test.go b/yaml/encoding_test.go
index a5e32bd..4bf208b 100644
--- a/yaml/encoding_test.go
+++ b/yaml/encoding_test.go
@@ -15,5 +15,6 @@ struct:
 `
 
 func TestDecode(t *testing.T) {
+	t.Parallel()
 	test.RunDecode(t, yaml.Decode, data)
 }