From 37bf6141f10d6f4be138c965ea08032420b01f56 Mon Sep 17 00:00:00 2001
From: Lei Xu <lei@apache.org>
Date: Mon, 26 Oct 2015 15:16:09 -0700
Subject: [PATCH] HDFS-9291. Fix TestInterDatanodeProtocol to be
 FsDataset-agnostic. (lei)

---
 hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt                | 2 ++
 .../hadoop/hdfs/server/datanode/FsDatasetTestUtils.java    | 7 +++++++
 .../datanode/fsdataset/impl/FsDatasetImplTestUtils.java    | 7 +++++++
 .../datanode/fsdataset/impl/TestInterDatanodeProtocol.java | 2 +-
 4 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
index 397cb19c1fe..55c77f80216 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
+++ b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
@@ -1576,6 +1576,8 @@ Release 2.8.0 - UNRELEASED
     HDFS-9284. fsck command should not print exception trace when file not
     found. (Jagadesh Kiran N via wang)
 
+    HDFS-9291. Fix TestInterDatanodeProtocol to be FsDataset-agnostic. (lei)
+
   OPTIMIZATIONS
 
     HDFS-8026. Trace FSOutputSummer#writeChecksumChunks rather than
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/FsDatasetTestUtils.java b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/FsDatasetTestUtils.java
index 252b285b5b4..eb986ff107f 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/FsDatasetTestUtils.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/FsDatasetTestUtils.java
@@ -192,4 +192,11 @@ public interface FsDatasetTestUtils {
    */
   Replica createReplicaUnderRecovery(ExtendedBlock block, long recoveryId)
       throws IOException;
+
+  /**
+   * Check the stored files / data of a replica.
+   * @param replica a replica object.
+   * @throws IOException
+   */
+  void checkStoredReplica(final Replica replica) throws IOException;
 }
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetImplTestUtils.java b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetImplTestUtils.java
index 3058b549b7f..ed32faec792 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetImplTestUtils.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetImplTestUtils.java
@@ -285,4 +285,11 @@ public class FsDatasetImplTestUtils implements FsDatasetTestUtils {
       return rur;
     }
   }
+
+  @Override
+  public void checkStoredReplica(Replica replica) throws IOException {
+    Preconditions.checkArgument(replica instanceof ReplicaInfo);
+    ReplicaInfo r = (ReplicaInfo) replica;
+    FsDatasetImpl.checkReplicaFiles(r);
+  }
 }
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/TestInterDatanodeProtocol.java b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/TestInterDatanodeProtocol.java
index 6cc3d7e3f2e..85818079134 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/TestInterDatanodeProtocol.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/TestInterDatanodeProtocol.java
@@ -359,7 +359,7 @@ public class TestInterDatanodeProtocol {
       Assert.assertEquals(ReplicaState.RUR, replica.getState());
 
       //check meta data before update
-      FsDatasetImpl.checkReplicaFiles(replica);
+      cluster.getFsDatasetTestUtils(datanode).checkStoredReplica(replica);
 
       //case "THIS IS NOT SUPPOSED TO HAPPEN"
       //with (block length) != (stored replica's on disk length).