diff --git a/internal/backends/memory/tokens_test.go b/internal/backends/memory/tokens_test.go
new file mode 100644
index 0000000..d76ed68
--- /dev/null
+++ b/internal/backends/memory/tokens_test.go
@@ -0,0 +1,12 @@
+package memory
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestTokenGenerator(t *testing.T) {
+	token := newToken(defaultTokenSize)
+	assert.Len(t, token, defaultTokenSize*2)
+}