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HDFS-10300. TestDistCpSystem should share MiniDFSCluster. Contributed by John Zhuge. 

(cherry picked from commit f292624bd8)
This commit is contained in:
Andrew Wang 2016-07-11 18:06:24 -07:00
parent be1a11c9c8
commit 38b1eafdbc
1 changed files with 100 additions and 85 deletions
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79
hadoop-tools/hadoop-distcp/src/test/java/org/apache/hadoop/tools/TestDistCpSystem.java
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@ -18,7 +18,10 @@
package org.apache.hadoop.tools;
import static org.apache.hadoop.test.GenericTestUtils.getMethodName;
import static org.hamcrest.core.Is.is;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.io.OutputStream;
@ -26,26 +29,33 @@
import java.util.ArrayList;
import java.util.List;
import junit.framework.TestCase;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.util.ToolRunner;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.Timeout;
/**
* A JUnit test for copying files recursively.
*/
public class TestDistCpSystem extends TestCase {
public class TestDistCpSystem {
@Rule
public Timeout globalTimeout = new Timeout(30000);
private static final String SRCDAT = "srcdat";
private static final String DSTDAT = "dstdat";
private static MiniDFSCluster cluster;
private static Configuration conf;
private class FileEntry {
String path;
boolean isDir;
@ -93,24 +103,17 @@ private static void deldir(FileSystem fs, String topdir) throws IOException {
fs.delete(new Path(topdir), true);
}
private void testPreserveUserHelper(
private void testPreserveUserHelper(String testRoot,
FileEntry[] srcEntries,
FileEntry[] dstEntries,
boolean createSrcDir,
boolean createTgtDir,
boolean update) throws Exception {
Configuration conf = null;
MiniDFSCluster cluster = null;
try {
final String testRoot = "/testdir";
final String testSrcRel = SRCDAT;
final String testSrc = testRoot + "/" + testSrcRel;
final String testDstRel = DSTDAT;
final String testDst = testRoot + "/" + testDstRel;
conf = new Configuration();
cluster = new MiniDFSCluster.Builder(conf).numDataNodes(2).build();
String nnUri = FileSystem.getDefaultUri(conf).toString();
FileSystem fs = FileSystem.get(URI.create(nnUri), conf);
fs.mkdirs(new Path(testRoot));
@ -140,12 +143,25 @@ private void testPreserveUserHelper(
assertEquals("i=" + i, "u" + i, dststat[i].getOwner());
}
deldir(fs, testRoot);
} finally {
if (cluster != null) { cluster.shutdown(); }
}
@BeforeClass
public static void beforeClass() throws IOException {
conf = new Configuration();
cluster = new MiniDFSCluster.Builder(conf).numDataNodes(2).build();
cluster.waitActive();
}
@AfterClass
public static void afterClass() throws IOException {
if (cluster != null) {
cluster.shutdown();
}
}
@Test
public void testPreserveUseNonEmptyDir() throws Exception {
String testRoot = "/testdir." + getMethodName();
FileEntry[] srcfiles = {
new FileEntry(SRCDAT, true),
new FileEntry(SRCDAT + "/a", false),
@ -160,12 +176,14 @@ public void testPreserveUseNonEmptyDir() throws Exception {
new FileEntry(DSTDAT + "/b/c", false)
};
testPreserveUserHelper(srcfiles, srcfiles, false, true, false);
testPreserveUserHelper(srcfiles, dstfiles, false, false, false);
testPreserveUserHelper(testRoot, srcfiles, srcfiles, false, true, false);
testPreserveUserHelper(testRoot, srcfiles, dstfiles, false, false, false);
}
@Test
public void testPreserveUserEmptyDir() throws Exception {
String testRoot = "/testdir." + getMethodName();
FileEntry[] srcfiles = {
new FileEntry(SRCDAT, true)
};
@ -174,22 +192,26 @@ public void testPreserveUserEmptyDir() throws Exception {
new FileEntry(DSTDAT, true)
};
testPreserveUserHelper(srcfiles, srcfiles, false, true, false);
testPreserveUserHelper(srcfiles, dstfiles, false, false, false);
testPreserveUserHelper(testRoot, srcfiles, srcfiles, false, true, false);
testPreserveUserHelper(testRoot, srcfiles, dstfiles, false, false, false);
}
@Test
public void testPreserveUserSingleFile() throws Exception {
String testRoot = "/testdir." + getMethodName();
FileEntry[] srcfiles = {
new FileEntry(SRCDAT, false)
};
FileEntry[] dstfiles = {
new FileEntry(DSTDAT, false)
};
testPreserveUserHelper(srcfiles, srcfiles, false, true, false);
testPreserveUserHelper(srcfiles, dstfiles, false, false, false);
testPreserveUserHelper(testRoot, srcfiles, srcfiles, false, true, false);
testPreserveUserHelper(testRoot, srcfiles, dstfiles, false, false, false);
}
@Test
public void testPreserveUserNonEmptyDirWithUpdate() throws Exception {
String testRoot = "/testdir." + getMethodName();
FileEntry[] srcfiles = {
new FileEntry(SRCDAT + "/a", false),
new FileEntry(SRCDAT + "/b", true),
@ -202,37 +224,30 @@ public void testPreserveUserNonEmptyDirWithUpdate() throws Exception {
new FileEntry("b/c", false)
};
testPreserveUserHelper(srcfiles, dstfiles, true, true, true);
testPreserveUserHelper(testRoot, srcfiles, dstfiles, true, true, true);
}
@Test
public void testSourceRoot() throws Exception {
MiniDFSCluster cluster = null;
Configuration conf = new Configuration();
try {
cluster = new MiniDFSCluster.Builder(conf).numDataNodes(2).build();
cluster.waitActive();
FileSystem fs = cluster.getFileSystem();
String rootStr = fs.makeQualified(new Path("/")).toString();
String testRoot = "/testdir." + getMethodName();
// Case 1. The target does not exist.
String tgtStr = fs.makeQualified(new Path("/nodir")).toString();
Path tgtPath = new Path(testRoot + "/nodir");
String tgtStr = fs.makeQualified(tgtPath).toString();
String[] args = new String[]{rootStr, tgtStr};
Assert.assertThat(ToolRunner.run(conf, new DistCp(), args), is(0));
// Case 2. The target exists.
Path tgtPath2 = new Path("/dir");
Path tgtPath2 = new Path(testRoot + "/dir");
assertTrue(fs.mkdirs(tgtPath2));
String tgtStr2 = fs.makeQualified(tgtPath2).toString();
String[] args2 = new String[]{rootStr, tgtStr2};
Assert.assertThat(ToolRunner.run(conf, new DistCp(), args2), is(0));
} finally {
if (cluster != null) {
cluster.shutdown();
}
}
}
}