diff --git a/providers/session/session_test.go b/providers/session/session_test.go
index 3bc0531..ae48154 100644
--- a/providers/session/session_test.go
+++ b/providers/session/session_test.go
@@ -1,9 +1,31 @@
 package session
 
 import "io"
+import "time"
 import "reflect"
 import "testing"
+import "github.com/google/uuid"
 import "git.tebibyte.media/sashakoshka/step"
+import "git.tebibyte.media/sashakoshka/go-util/sync"
+
+func TestSession (test *testing.T) {
+	future := time.Now().Add(5 * time.Minute)
+	sessions := make(sessionMap)
+	sessionLocker := usync.NewRWLocker(sessions)
+	state := state { sessions: &sessionLocker }
+	session, err := state.newSession(uuid.New(), future)
+	if err != nil { test.Fatal(err) }
+
+	if len(sessions) != 0 { test.Fatal("incorrect len(sessions):", sessions) }
+	_, err = session.Set("some key", "some value")
+	if err != nil { test.Fatal(err) }
+	if len(sessions) != 1 { test.Fatal("incorrect len(sessions):", sessions) }
+	value, err := session.Get("some key")
+	if err != nil { test.Fatal(err) }
+	if value.(string) != "some value" { test.Fatal("not equal") }
+	session.Clear()
+	if len(sessions) != 0 { test.Fatal("incorrect len(sessions):", sessions) }
+}
 
 func TestEnsafenValue (test *testing.T) {
 	items := []any {