HDFS-9168. Move client side unit test to hadoop-hdfs-client. Contributed by Haohui Mai.

hadoop-hdfs-project/hadoop-hdfs-client/pom.xml

@@ -51,6 +51,27 @@ http://maven.apache.org/xsd/maven-4.0.0.xsd">
         </exclusion>
       </exclusions>
     </dependency>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-all</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.mock-server</groupId>
+      <artifactId>mockserver-netty</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.hadoop</groupId>
+      <artifactId>hadoop-common</artifactId>
+      <scope>test</scope>
+      <type>test-jar</type>
+    </dependency>
   </dependencies>
 
   <build>

hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocol/datatransfer/ReplaceDatanodeOnFailure.java

@@ -30,16 +30,49 @@ import org.apache.hadoop.hdfs.protocol.DatanodeInfo;
 @InterfaceAudience.Private
 @InterfaceStability.Evolving
 public class ReplaceDatanodeOnFailure {
+  /**
+   * DEFAULT condition:
+   *   Let r be the replication number.
+   *   Let n be the number of existing datanodes.
+   *   Add a new datanode only if r >= 3 and either
+   *   (1) floor(r/2) >= n or (2) the block is hflushed/appended.
+   */
+  private static final Condition CONDITION_DEFAULT = new Condition() {
+    @Override
+    public boolean satisfy(final short replication,
+        final DatanodeInfo[] existings, final int n, final boolean isAppend,
+        final boolean isHflushed) {
+      return replication >= 3 &&
+          (n <= (replication / 2) || isAppend || isHflushed);
+    }
+  };
+  /** Return false unconditionally. */
+  private static final Condition CONDITION_FALSE = new Condition() {
+    @Override
+    public boolean satisfy(short replication, DatanodeInfo[] existings,
+        int nExistings, boolean isAppend, boolean isHflushed) {
+      return false;
+    }
+  };
+  /** Return true unconditionally. */
+  private static final Condition CONDITION_TRUE = new Condition() {
+    @Override
+    public boolean satisfy(short replication, DatanodeInfo[] existings,
+        int nExistings, boolean isAppend, boolean isHflushed) {
+      return true;
+    }
+  };
+
   /** The replacement policies */
   public enum Policy {
     /** The feature is disabled in the entire site. */
-    DISABLE(Condition.FALSE),
+    DISABLE(CONDITION_FALSE),
     /** Never add a new datanode. */
-    NEVER(Condition.FALSE),
+    NEVER(CONDITION_FALSE),
-    /** @see ReplaceDatanodeOnFailure.Condition#DEFAULT */
+    /** @see ReplaceDatanodeOnFailure#CONDITION_DEFAULT */
-    DEFAULT(Condition.DEFAULT),
+    DEFAULT(CONDITION_DEFAULT),
     /** Always add a new datanode when an existing datanode is removed. */
-    ALWAYS(Condition.TRUE);
+    ALWAYS(CONDITION_TRUE);
 
     private final Condition condition;
 
@@ -54,41 +87,6 @@ public class ReplaceDatanodeOnFailure {
 
   /** Datanode replacement condition */
   private interface Condition {
-    /** Return true unconditionally. */
-    Condition TRUE = new Condition() {
-      @Override
-      public boolean satisfy(short replication, DatanodeInfo[] existings,
-          int nExistings, boolean isAppend, boolean isHflushed) {
-        return true;
-      }
-    };
-
-    /** Return false unconditionally. */
-    Condition FALSE = new Condition() {
-      @Override
-      public boolean satisfy(short replication, DatanodeInfo[] existings,
-          int nExistings, boolean isAppend, boolean isHflushed) {
-        return false;
-      }
-    };
-
-    /**
-     * DEFAULT condition:
-     *   Let r be the replication number.
-     *   Let n be the number of existing datanodes.
-     *   Add a new datanode only if r >= 3 and either
-     *   (1) floor(r/2) >= n; or
-     *   (2) r > n and the block is hflushed/appended.
-     */
-    Condition DEFAULT = new Condition() {
-      @Override
-      public boolean satisfy(final short replication,
-          final DatanodeInfo[] existings, final int n, final boolean isAppend,
-          final boolean isHflushed) {
-        return replication >= 3 &&
-            (n <= (replication / 2) || isAppend || isHflushed);
-      }
-    };
 
     /** Is the condition satisfied? */
     boolean satisfy(short replication, DatanodeInfo[] existings, int nExistings,

hadoop-hdfs-project/hadoop-hdfs-client/src/test/java/org/apache/hadoop/hdfs/TestDefaultNameNodePort.java

@@ -17,17 +17,15 @@
  */
 package org.apache.hadoop.hdfs;
 
-import static org.junit.Assert.assertEquals;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.hdfs.client.HdfsClientConfigKeys;
+import org.junit.Test;
 
 import java.net.InetSocketAddress;
 import java.net.URI;
 
-import org.apache.hadoop.conf.Configuration;
+import static org.junit.Assert.assertEquals;
-import org.apache.hadoop.fs.FileSystem;
-import org.apache.hadoop.hdfs.client.HdfsClientConfigKeys;
-import org.apache.hadoop.hdfs.server.namenode.NameNode;
-
-import org.junit.Test;
 
 /** Test NameNode port defaulting code. */
 public class TestDefaultNameNodePort {

hadoop-hdfs-project/hadoop-hdfs-client/src/test/java/org/apache/hadoop/hdfs/TestPeerCache.java

@@ -17,17 +17,7 @@
  */
 package org.apache.hadoop.hdfs;
 
-import static org.junit.Assert.assertEquals;
+import com.google.common.collect.HashMultiset;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertTrue;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.nio.channels.ReadableByteChannel;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.hdfs.net.Peer;
 import org.apache.hadoop.hdfs.protocol.DatanodeID;
 import org.apache.hadoop.net.unix.DomainSocket;
@@ -35,11 +25,20 @@ import org.junit.Test;
 import org.mockito.Mockito;
 import org.mockito.invocation.InvocationOnMock;
 import org.mockito.stubbing.Answer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
-import com.google.common.collect.HashMultiset;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.channels.ReadableByteChannel;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertSame;
+import static org.junit.Assert.assertTrue;
 
 public class TestPeerCache {
-  static final Log LOG = LogFactory.getLog(TestPeerCache.class);
+  static final Logger LOG = LoggerFactory.getLogger(TestPeerCache.class);
 
   private static class FakePeer implements Peer {
     private boolean closed = false;

hadoop-hdfs-project/hadoop-hdfs-client/src/test/java/org/apache/hadoop/hdfs/client/impl/TestLeaseRenewer.java

@@ -17,14 +17,9 @@
  */
 package org.apache.hadoop.hdfs.client.impl;
 
-import static org.junit.Assert.assertSame;
+import com.google.common.base.Supplier;
-
-import java.io.IOException;
-import java.util.concurrent.atomic.AtomicInteger;
-
 import org.apache.hadoop.hdfs.DFSClient;
 import org.apache.hadoop.hdfs.DFSOutputStream;
-import org.apache.hadoop.hdfs.client.impl.DfsClientConf;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.test.GenericTestUtils;
 import org.apache.hadoop.util.Time;
@@ -35,7 +30,10 @@ import org.mockito.Mockito;
 import org.mockito.invocation.InvocationOnMock;
 import org.mockito.stubbing.Answer;
 
-import com.google.common.base.Supplier;
+import java.io.IOException;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import static org.junit.Assert.assertSame;
 
 public class TestLeaseRenewer {
   private final String FAKE_AUTHORITY="hdfs://nn1/";

hadoop-hdfs-project/hadoop-hdfs-client/src/test/java/org/apache/hadoop/hdfs/shortcircuit/TestShortCircuitShm.java

@@ -17,16 +17,8 @@
  */
 package org.apache.hadoop.hdfs.shortcircuit;
 
-import java.io.File;
-import java.io.FileInputStream;
-import java.util.ArrayList;
-import java.util.Iterator;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.fs.FileUtil;
 import org.apache.hadoop.hdfs.ExtendedBlockId;
-import org.apache.hadoop.hdfs.shortcircuit.ShortCircuitShm;
 import org.apache.hadoop.hdfs.shortcircuit.ShortCircuitShm.ShmId;
 import org.apache.hadoop.hdfs.shortcircuit.ShortCircuitShm.Slot;
 import org.apache.hadoop.io.nativeio.SharedFileDescriptorFactory;
@@ -34,9 +26,17 @@ import org.junit.Assert;
 import org.junit.Assume;
 import org.junit.Before;
 import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.util.ArrayList;
+import java.util.Iterator;
 
 public class TestShortCircuitShm {
-  public static final Log LOG = LogFactory.getLog(TestShortCircuitShm.class);
+  public static final Logger LOG = LoggerFactory.getLogger(
+      TestShortCircuitShm.class);
   
   private static final File TEST_BASE =
       new File(System.getProperty("test.build.data", "/tmp"));

hadoop-hdfs-project/hadoop-hdfs-client/src/test/java/org/apache/hadoop/hdfs/util/TestByteArrayManager.java

@@ -17,6 +17,19 @@
  */
 package org.apache.hadoop.hdfs.util;
 
+import org.apache.hadoop.hdfs.client.HdfsClientConfigKeys;
+import org.apache.hadoop.hdfs.util.ByteArrayManager.Counter;
+import org.apache.hadoop.hdfs.util.ByteArrayManager.CounterMap;
+import org.apache.hadoop.hdfs.util.ByteArrayManager.FixedLengthManager;
+import org.apache.hadoop.hdfs.util.ByteArrayManager.ManagerMap;
+import org.apache.hadoop.test.GenericTestUtils;
+import org.apache.hadoop.util.Time;
+import org.apache.log4j.Level;
+import org.junit.Assert;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
@@ -31,29 +44,16 @@ import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
 import java.util.concurrent.atomic.AtomicInteger;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.apache.hadoop.hdfs.client.HdfsClientConfigKeys;
-import org.apache.hadoop.hdfs.util.ByteArrayManager.Counter;
-import org.apache.hadoop.hdfs.util.ByteArrayManager.CounterMap;
-import org.apache.hadoop.hdfs.util.ByteArrayManager.FixedLengthManager;
-import org.apache.hadoop.hdfs.util.ByteArrayManager.ManagerMap;
-import org.apache.hadoop.test.GenericTestUtils;
-import org.apache.hadoop.util.Time;
-import org.apache.log4j.Level;
-import org.junit.Assert;
-import org.junit.Test;
-
 /**
  * Test {@link ByteArrayManager}.
  */
 public class TestByteArrayManager {
   static {
-    GenericTestUtils.setLogLevel(LogFactory.getLog(ByteArrayManager.class),
+    GenericTestUtils.setLogLevel(
-        Level.ALL);
+        LoggerFactory.getLogger(ByteArrayManager.class), Level.ALL);
   }
 
-  static final Log LOG = LogFactory.getLog(TestByteArrayManager.class);
+  static final Logger LOG = LoggerFactory.getLogger(TestByteArrayManager.class);
 
   private static final Comparator<Future<Integer>> CMP = new Comparator<Future<Integer>>() {
     @Override
@@ -559,9 +559,8 @@ public class TestByteArrayManager {
   }
   
   public static void main(String[] args) throws Exception {
-    GenericTestUtils.setLogLevel(LogFactory.getLog(ByteArrayManager.class),
+    GenericTestUtils.setLogLevel(LoggerFactory.getLogger(ByteArrayManager.class),
-        Level.OFF);
+                                 Level.OFF);
-
     final int arrayLength = 64 * 1024; //64k
     final int nThreads = 512;
     final int nAllocations = 1 << 15;

hadoop-hdfs-project/hadoop-hdfs-client/src/test/java/org/apache/hadoop/hdfs/web/TestWebHDFSOAuth2.java

@@ -18,8 +18,6 @@
  */
 package org.apache.hadoop.hdfs.web;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.FileSystem;
@@ -38,6 +36,8 @@ import org.mockserver.integration.ClientAndServer;
 import org.mockserver.model.Header;
 import org.mockserver.model.HttpRequest;
 import org.mockserver.model.HttpResponse;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
 import java.net.URI;
@@ -58,7 +58,8 @@ import static org.mockserver.model.HttpRequest.request;
 import static org.mockserver.model.HttpResponse.response;
 
 public class TestWebHDFSOAuth2 {
-  public static final Log LOG = LogFactory.getLog(TestWebHDFSOAuth2.class);
+  public static final Logger LOG = LoggerFactory.getLogger(
+      TestWebHDFSOAuth2.class);
 
   private ClientAndServer mockWebHDFS;
   private ClientAndServer mockOAuthServer;

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -805,6 +805,8 @@ Release 2.8.0 - UNRELEASED
     HDFS-9297. Update TestBlockMissingException to use corruptBlockOnDataNodesByDeletingBlockFile().
     (Tony Wu via lei)
 
+    HDFS-9168. Move client side unit test to hadoop-hdfs-client. (wheat9)
+
   BUG FIXES
 
     HDFS-8091: ACLStatus and XAttributes should be presented to

hadoop-hdfs-project/hadoop-hdfs/pom.xml

@@ -210,12 +210,6 @@ http://maven.apache.org/xsd/maven-4.0.0.xsd">
       <artifactId>leveldbjni-all</artifactId>
       <version>1.8</version>
     </dependency>
-    <dependency>
-      <groupId>org.mock-server</groupId>
-      <artifactId>mockserver-netty</artifactId>
-      <version>3.9.2</version>
-      <scope>test</scope>
-    </dependency>
     <!-- 'mvn dependency:analyze' fails to detect use of this dependency -->
     <dependency>
       <groupId>org.bouncycastle</groupId>

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAuditLogger.java

@@ -19,7 +19,7 @@
 package org.apache.hadoop.hdfs.server.namenode;
 
 import com.google.common.collect.Lists;
-import org.apache.commons.lang3.RandomStringUtils;
+import org.apache.commons.lang.StringUtils;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.FileSystem;
@@ -259,7 +259,7 @@ public class TestAuditLogger {
       auditlog.clearOutput();
 
       // long context is truncated
-      final String longContext = RandomStringUtils.randomAscii(200);
+      final String longContext = StringUtils.repeat("foo", 100);
       context = new CallerContext.Builder(longContext)
           .setSignature("L".getBytes(CallerContext.SIGNATURE_ENCODING))
           .build();

hadoop-project/pom.xml

@@ -774,6 +774,11 @@
         <artifactId>mockito-all</artifactId>
         <version>1.8.5</version>
       </dependency>
+      <dependency>
+        <groupId>org.mock-server</groupId>
+        <artifactId>mockserver-netty</artifactId>
+        <version>3.9.2</version>
+      </dependency>
       <dependency>
         <groupId>org.apache.avro</groupId>
         <artifactId>avro</artifactId>