HADOOP-8537. Fix TFile tests to pass even when native zlib support is not compiled. Contributed by Todd Lipcon.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1362729 13f79535-47bb-0310-9956-ffa450edef68

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -355,6 +355,9 @@ Branch-2 ( Unreleased changes )
     HADOOP-8552. Conflict: Same security.log.file for multiple users. 
     (kkambatl via tucu)
 
+    HADOOP-8537. Fix TFile tests to pass even when native zlib support is not
+    compiled. (todd)
+
   BREAKDOWN OF HDFS-3042 SUBTASKS
 
     HADOOP-8220. ZKFailoverController doesn't handle failure to become active

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/io/file/tfile/TestTFileByteArrays.java

@@ -30,6 +30,7 @@ import org.apache.hadoop.fs.FSDataOutputStream;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.io.WritableUtils;
+import org.apache.hadoop.io.compress.zlib.ZlibFactory;
 import org.apache.hadoop.io.file.tfile.TFile.Reader;
 import org.apache.hadoop.io.file.tfile.TFile.Writer;
 import org.apache.hadoop.io.file.tfile.TFile.Reader.Location;
@@ -57,7 +58,7 @@ public class TestTFileByteArrays {
   private static final String VALUE = "value";
 
   private FileSystem fs;
-  private Configuration conf;
+  private Configuration conf = new Configuration();
   private Path path;
   private FSDataOutputStream out;
   private Writer writer;
@@ -71,8 +72,9 @@ public class TestTFileByteArrays {
    * generated key and value strings. This is slightly different based on
    * whether or not the native libs are present.
    */
-  private int records1stBlock = NativeCodeLoader.isNativeCodeLoaded() ? 5674 : 4480;
-  private int records2ndBlock = NativeCodeLoader.isNativeCodeLoaded() ? 5574 : 4263;
+  private boolean usingNative = ZlibFactory.isNativeZlibLoaded(conf);
+  private int records1stBlock = usingNative ? 5674 : 4480;
+  private int records2ndBlock = usingNative ? 5574 : 4263;
 
   public void init(String compression, String comparator, String outputFile,
       int numRecords1stBlock, int numRecords2ndBlock) {
@@ -89,7 +91,6 @@ public class TestTFileByteArrays {
 
   @Before
   public void setUp() throws IOException {
-    conf = new Configuration();
     path = new Path(ROOT, outputFile);
     fs = path.getFileSystem(conf);
     out = fs.create(path);