[#293] pkg/token: Implement and use generator of BearerToken

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

pkg/token/bearer_test.go

@@ -6,6 +6,7 @@ import (
 	"github.com/nspcc-dev/neofs-api-go/pkg/acl/eacl"
 	"github.com/nspcc-dev/neofs-api-go/pkg/owner"
 	"github.com/nspcc-dev/neofs-api-go/pkg/token"
+	tokentest "github.com/nspcc-dev/neofs-api-go/pkg/token/test"
 	"github.com/nspcc-dev/neofs-crypto/test"
 	"github.com/stretchr/testify/require"
 )
@@ -32,8 +33,7 @@ func TestBearerToken_Issuer(t *testing.T) {
 }
 
 func TestFilterEncoding(t *testing.T) {
-	f := token.NewBearerToken()
-	f.SetLifetime(1, 2, 3)
+	f := tokentest.Generate()
 
 	t.Run("binary", func(t *testing.T) {
 		data, err := f.Marshal()

pkg/token/test/generate.go

@@ -0,0 +1,35 @@
+package tokentest
+
+import (
+	eacltest "github.com/nspcc-dev/neofs-api-go/pkg/acl/eacl/test"
+	ownertest "github.com/nspcc-dev/neofs-api-go/pkg/owner/test"
+	"github.com/nspcc-dev/neofs-api-go/pkg/token"
+	"github.com/nspcc-dev/neofs-crypto/test"
+)
+
+// Generate returns random token.BearerToken.
+//
+// Resulting token is unsigned.
+func Generate() *token.BearerToken {
+	x := token.NewBearerToken()
+
+	x.SetLifetime(3, 2, 1)
+	x.SetOwner(ownertest.Generate())
+	x.SetEACLTable(eacltest.Table())
+
+	return x
+}
+
+// GenerateSigned returns signed random token.BearerToken.
+//
+// Panics if token could not be signed (actually unexpected).
+func GenerateSigned() *token.BearerToken {
+	tok := Generate()
+
+	err := tok.SignToken(test.DecodeKey(0))
+	if err != nil {
+		panic(err)
+	}
+
+	return tok
+}