Add election info to Snapshot

[controller.git] / opendaylight / md-sal / sal-akka-raft / src / test / java / org / opendaylight / controller / cluster / raft / SnapshotTest.java

diff --git a/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/SnapshotTest.java b/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/SnapshotTest.java
new file mode 100644 (file)
index 0000000..9302b6d
--- /dev/null
+++ b/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/SnapshotTest.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2015 Brocade Communications Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.cluster.raft;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.util.ArrayList;
+import java.util.List;
+import org.junit.Test;
+import org.opendaylight.controller.cluster.raft.MockRaftActorContext.MockPayload;
+
+/**
+ * Unit tests for Snapshot.
+ *
+ * @author Thomas Pantelis
+ */
+public class SnapshotTest {
+
+    @Test
+    public void testBackwardsCompatibleDeserializationFromLithium() throws Exception {
+        Snapshot expSnapshot = newLithiumSnapshot();
+        try(FileInputStream fis = new FileInputStream("src/test/resources/lithium-serialized-Snapshot")) {
+            ObjectInputStream ois = new ObjectInputStream(fis);
+
+            Snapshot snapshot = (Snapshot) ois.readObject();
+            ois.close();
+
+            assertEquals("lastIndex", expSnapshot.getLastIndex(), snapshot.getLastIndex());
+            assertEquals("lastTerm", expSnapshot.getLastTerm(), snapshot.getLastTerm());
+            assertEquals("lastAppliedIndex", expSnapshot.getLastAppliedIndex(), snapshot.getLastAppliedIndex());
+            assertEquals("lastAppliedTerm", expSnapshot.getLastAppliedTerm(), snapshot.getLastAppliedTerm());
+            assertEquals("unAppliedEntries size", expSnapshot.getUnAppliedEntries().size(), snapshot.getUnAppliedEntries().size());
+            assertArrayEquals("state", expSnapshot.getState(), snapshot.getState());
+            assertEquals("electionTerm", 0, snapshot.getElectionTerm());
+            assertEquals("electionVotedFor", null, snapshot.getElectionVotedFor());
+        }
+    }
+
+    private Snapshot newLithiumSnapshot() {
+        byte[] state = {1, 2, 3, 4, 5};
+        List<ReplicatedLogEntry> entries = new ArrayList<>();
+        entries.add(new ReplicatedLogImplEntry(6, 2, new MockPayload("payload")));
+        long lastIndex = 6;
+        long lastTerm = 2;
+        long lastAppliedIndex = 5;
+        long lastAppliedTerm = 1;
+
+        return Snapshot.create(state, entries, lastIndex, lastTerm, lastAppliedIndex, lastAppliedTerm);
+    }
+
+    /**
+     * Use this method to generate a file with a serialized Snapshot instance to be
+     * used in tests that verify backwards compatible de-serialization.
+     */
+    private void generateSerializedFile(Snapshot snapshot, String fileName) throws IOException {
+        FileOutputStream fos = new FileOutputStream("src/test/resources/" + fileName);
+        ObjectOutputStream oos = new ObjectOutputStream(fos);
+        oos.writeObject(snapshot);
+        fos.close();
+    }
+}