1 files changed, 50 insertions, 0 deletions
diff --git a/swarm/storage/feeds/update_test.go b/swarm/storage/feeds/update_test.go
new file mode 100644
index 000000000..7763da0c8
--- /dev/null
+++ b/swarm/storage/feeds/update_test.go
@@ -0,0 +1,50 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package feeds
+
+import (
+	"testing"
+)
+
+func getTestFeedUpdate() *Update {
+	return &Update{
+		ID:   *getTestID(),
+		data: []byte("El que lee mucho y anda mucho, ve mucho y sabe mucho"),
+	}
+}
+
+func TestUpdateSerializer(t *testing.T) {
+	testBinarySerializerRecovery(t, getTestFeedUpdate(), "0x0000000000000000776f726c64206e657773207265706f72742c20657665727920686f7572000000876a8936a7cd0b79ef0735ad0896c1afe278781ce803000000000019456c20717565206c6565206d7563686f207920616e6461206d7563686f2c207665206d7563686f20792073616265206d7563686f")
+}
+
+func TestUpdateLengthCheck(t *testing.T) {
+	testBinarySerializerLengthCheck(t, getTestFeedUpdate())
+	// Test fail if update is too big
+	update := getTestFeedUpdate()
+	update.data = make([]byte, maxUpdateDataLength+100)
+	serialized := make([]byte, update.binaryLength())
+	if err := update.binaryPut(serialized); err == nil {
+		t.Fatal("Expected update.binaryPut to fail since update is too big")
+	}
+
+	// test fail if data is empty or nil
+	update.data = nil
+	serialized = make([]byte, update.binaryLength())
+	if err := update.binaryPut(serialized); err == nil {
+		t.Fatal("Expected update.binaryPut to fail since data is empty")
+	}
+}