From 78af36bb077d53a020746b72cd5d9af12940482e Mon Sep 17 00:00:00 2001
From: Uma Maheswara Rao G <umamahesh@apache.org>
Date: Fri, 22 Nov 2013 16:14:37 +0000
Subject: [PATCH] Merge HDFS-5544. Adding Test case For Checking
 dfs.checksum.type as NULL value. Contributed by Sathish.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1544598 13f79535-47bb-0310-9956-ffa450edef68
---
 hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt   |  2 ++
 .../hadoop/hdfs/TestFSOutputSummer.java       | 21 +++++++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
index 913d49fac8c..e5431d8c2d0 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
+++ b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
@@ -222,6 +222,8 @@ Release 2.2.1 - UNRELEASED
 
     HDFS-5344. Make LsSnapshottableDir as Tool interface implementation. (Sathish via umamahesh)
 
+    HDFS-5544. Adding Test case For Checking dfs.checksum type as NULL value. (Sathish via umamahesh)
+
   OPTIMIZATIONS
 
   BUG FIXES
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFSOutputSummer.java b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFSOutputSummer.java
index a3b3f808eb9..88a83715ff0 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFSOutputSummer.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestFSOutputSummer.java
@@ -135,4 +135,25 @@ public class TestFSOutputSummer {
       cluster.shutdown();
     }
   }
+  
+  @Test
+  public void TestDFSCheckSumType() throws Exception{
+    Configuration conf = new HdfsConfiguration();
+    conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, BLOCK_SIZE);
+    conf.setInt(DFSConfigKeys.DFS_BYTES_PER_CHECKSUM_KEY, BYTES_PER_CHECKSUM);
+    conf.set(DFSConfigKeys.DFS_CHECKSUM_TYPE_KEY, "NULL");
+    MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
+                                               .numDataNodes(NUM_OF_DATANODES)
+                                               .build();
+    fileSys = cluster.getFileSystem();
+    try {
+      Path file = new Path("try.dat");
+      Random rand = new Random(seed);
+      rand.nextBytes(expected);
+      writeFile1(file);
+    } finally {
+      fileSys.close();
+      cluster.shutdown();
+    }
+  }
 }