HDFS-10300. TestDistCpSystem should share MiniDFSCluster. Contributed by John Zhuge.
This commit is contained in:
Andrew Wang
parent
7bd5d4272c
commit
f292624bd8
@ -18,7 +18,10 @@
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package org.apache.hadoop.tools;
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import static org.apache.hadoop.test.GenericTestUtils.getMethodName;
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import static org.hamcrest.core.Is.is;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertTrue;
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import java.io.IOException;
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import java.io.OutputStream;
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@ -26,26 +29,33 @@
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import java.util.ArrayList;
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import java.util.List;
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import junit.framework.TestCase;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.fs.FileStatus;
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import org.apache.hadoop.fs.FileSystem;
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import org.apache.hadoop.fs.Path;
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import org.apache.hadoop.hdfs.MiniDFSCluster;
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import org.apache.hadoop.util.ToolRunner;
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import org.junit.AfterClass;
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import org.junit.Assert;
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import org.junit.BeforeClass;
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import org.junit.Rule;
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import org.junit.Test;
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import org.junit.rules.Timeout;
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/**
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* A JUnit test for copying files recursively.
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*/
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public class TestDistCpSystem extends TestCase {
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public class TestDistCpSystem {
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@Rule
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public Timeout globalTimeout = new Timeout(30000);
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private static final String SRCDAT = "srcdat";
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private static final String DSTDAT = "dstdat";
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private static MiniDFSCluster cluster;
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private static Configuration conf;
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private class FileEntry {
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String path;
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boolean isDir;
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@ -92,60 +102,66 @@ private static FileStatus[] getFileStatus(FileSystem fs,
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private static void deldir(FileSystem fs, String topdir) throws IOException {
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fs.delete(new Path(topdir), true);
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}
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private void testPreserveUserHelper(
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FileEntry[] srcEntries,
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FileEntry[] dstEntries,
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boolean createSrcDir,
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boolean createTgtDir,
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boolean update) throws Exception {
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Configuration conf = null;
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MiniDFSCluster cluster = null;
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try {
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final String testRoot = "/testdir";
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final String testSrcRel = SRCDAT;
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final String testSrc = testRoot + "/" + testSrcRel;
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final String testDstRel = DSTDAT;
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final String testDst = testRoot + "/" + testDstRel;
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conf = new Configuration();
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cluster = new MiniDFSCluster.Builder(conf).numDataNodes(2).build();
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private void testPreserveUserHelper(String testRoot,
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FileEntry[] srcEntries,
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FileEntry[] dstEntries,
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boolean createSrcDir,
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boolean createTgtDir,
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boolean update) throws Exception {
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final String testSrcRel = SRCDAT;
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final String testSrc = testRoot + "/" + testSrcRel;
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final String testDstRel = DSTDAT;
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final String testDst = testRoot + "/" + testDstRel;
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String nnUri = FileSystem.getDefaultUri(conf).toString();
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FileSystem fs = FileSystem.get(URI.create(nnUri), conf);
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fs.mkdirs(new Path(testRoot));
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if (createSrcDir) {
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fs.mkdirs(new Path(testSrc));
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}
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if (createTgtDir) {
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fs.mkdirs(new Path(testDst));
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}
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createFiles(fs, testRoot, srcEntries);
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FileStatus[] srcstats = getFileStatus(fs, testRoot, srcEntries);
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for(int i = 0; i < srcEntries.length; i++) {
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fs.setOwner(srcstats[i].getPath(), "u" + i, null);
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}
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String[] args = update? new String[]{"-pu", "-update", nnUri+testSrc,
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nnUri+testDst} : new String[]{"-pu", nnUri+testSrc, nnUri+testDst};
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ToolRunner.run(conf, new DistCp(), args);
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String realTgtPath = testDst;
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if (!createTgtDir) {
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realTgtPath = testRoot;
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}
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FileStatus[] dststat = getFileStatus(fs, realTgtPath, dstEntries);
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for(int i = 0; i < dststat.length; i++) {
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assertEquals("i=" + i, "u" + i, dststat[i].getOwner());
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}
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deldir(fs, testRoot);
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} finally {
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if (cluster != null) { cluster.shutdown(); }
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String nnUri = FileSystem.getDefaultUri(conf).toString();
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FileSystem fs = FileSystem.get(URI.create(nnUri), conf);
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fs.mkdirs(new Path(testRoot));
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if (createSrcDir) {
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fs.mkdirs(new Path(testSrc));
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}
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if (createTgtDir) {
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fs.mkdirs(new Path(testDst));
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}
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createFiles(fs, testRoot, srcEntries);
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FileStatus[] srcstats = getFileStatus(fs, testRoot, srcEntries);
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for(int i = 0; i < srcEntries.length; i++) {
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fs.setOwner(srcstats[i].getPath(), "u" + i, null);
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}
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String[] args = update? new String[]{"-pu", "-update", nnUri+testSrc,
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nnUri+testDst} : new String[]{"-pu", nnUri+testSrc, nnUri+testDst};
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ToolRunner.run(conf, new DistCp(), args);
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String realTgtPath = testDst;
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if (!createTgtDir) {
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realTgtPath = testRoot;
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}
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FileStatus[] dststat = getFileStatus(fs, realTgtPath, dstEntries);
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for(int i = 0; i < dststat.length; i++) {
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assertEquals("i=" + i, "u" + i, dststat[i].getOwner());
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}
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deldir(fs, testRoot);
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}
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@BeforeClass
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public static void beforeClass() throws IOException {
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conf = new Configuration();
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cluster = new MiniDFSCluster.Builder(conf).numDataNodes(2).build();
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cluster.waitActive();
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}
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@AfterClass
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public static void afterClass() throws IOException {
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if (cluster != null) {
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cluster.shutdown();
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}
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}
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@Test
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public void testPreserveUseNonEmptyDir() throws Exception {
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String testRoot = "/testdir." + getMethodName();
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FileEntry[] srcfiles = {
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new FileEntry(SRCDAT, true),
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new FileEntry(SRCDAT + "/a", false),
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@ -160,12 +176,14 @@ public void testPreserveUseNonEmptyDir() throws Exception {
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new FileEntry(DSTDAT + "/b/c", false)
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};
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testPreserveUserHelper(srcfiles, srcfiles, false, true, false);
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testPreserveUserHelper(srcfiles, dstfiles, false, false, false);
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testPreserveUserHelper(testRoot, srcfiles, srcfiles, false, true, false);
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testPreserveUserHelper(testRoot, srcfiles, dstfiles, false, false, false);
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}
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@Test
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public void testPreserveUserEmptyDir() throws Exception {
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String testRoot = "/testdir." + getMethodName();
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FileEntry[] srcfiles = {
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new FileEntry(SRCDAT, true)
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};
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@ -174,22 +192,26 @@ public void testPreserveUserEmptyDir() throws Exception {
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new FileEntry(DSTDAT, true)
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};
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testPreserveUserHelper(srcfiles, srcfiles, false, true, false);
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testPreserveUserHelper(srcfiles, dstfiles, false, false, false);
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testPreserveUserHelper(testRoot, srcfiles, srcfiles, false, true, false);
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testPreserveUserHelper(testRoot, srcfiles, dstfiles, false, false, false);
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}
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@Test
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public void testPreserveUserSingleFile() throws Exception {
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String testRoot = "/testdir." + getMethodName();
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FileEntry[] srcfiles = {
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new FileEntry(SRCDAT, false)
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};
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FileEntry[] dstfiles = {
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new FileEntry(DSTDAT, false)
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};
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testPreserveUserHelper(srcfiles, srcfiles, false, true, false);
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testPreserveUserHelper(srcfiles, dstfiles, false, false, false);
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testPreserveUserHelper(testRoot, srcfiles, srcfiles, false, true, false);
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testPreserveUserHelper(testRoot, srcfiles, dstfiles, false, false, false);
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}
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@Test
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public void testPreserveUserNonEmptyDirWithUpdate() throws Exception {
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String testRoot = "/testdir." + getMethodName();
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FileEntry[] srcfiles = {
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new FileEntry(SRCDAT + "/a", false),
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new FileEntry(SRCDAT + "/b", true),
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@ -202,37 +224,30 @@ public void testPreserveUserNonEmptyDirWithUpdate() throws Exception {
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new FileEntry("b/c", false)
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};
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testPreserveUserHelper(srcfiles, dstfiles, true, true, true);
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testPreserveUserHelper(testRoot, srcfiles, dstfiles, true, true, true);
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}
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@Test
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public void testSourceRoot() throws Exception {
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MiniDFSCluster cluster = null;
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Configuration conf = new Configuration();
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try {
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cluster = new MiniDFSCluster.Builder(conf).numDataNodes(2).build();
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cluster.waitActive();
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FileSystem fs = cluster.getFileSystem();
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FileSystem fs = cluster.getFileSystem();
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String rootStr = fs.makeQualified(new Path("/")).toString();
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String rootStr = fs.makeQualified(new Path("/")).toString();
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// Case 1. The target does not exist.
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String testRoot = "/testdir." + getMethodName();
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String tgtStr = fs.makeQualified(new Path("/nodir")).toString();
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String[] args = new String[]{ rootStr, tgtStr };
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Assert.assertThat(ToolRunner.run(conf, new DistCp(), args), is(0));
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// Case 1. The target does not exist.
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// Case 2. The target exists.
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Path tgtPath = new Path(testRoot + "/nodir");
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String tgtStr = fs.makeQualified(tgtPath).toString();
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String[] args = new String[]{rootStr, tgtStr};
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Assert.assertThat(ToolRunner.run(conf, new DistCp(), args), is(0));
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Path tgtPath2 = new Path("/dir");
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assertTrue(fs.mkdirs(tgtPath2));
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String tgtStr2 = fs.makeQualified(tgtPath2).toString();
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String[] args2 = new String[]{ rootStr, tgtStr2 };
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Assert.assertThat(ToolRunner.run(conf, new DistCp(), args2), is(0));
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} finally {
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if (cluster != null) {
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cluster.shutdown();
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}
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}
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// Case 2. The target exists.
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Path tgtPath2 = new Path(testRoot + "/dir");
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assertTrue(fs.mkdirs(tgtPath2));
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String tgtStr2 = fs.makeQualified(tgtPath2).toString();
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String[] args2 = new String[]{rootStr, tgtStr2};
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Assert.assertThat(ToolRunner.run(conf, new DistCp(), args2), is(0));
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}
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}
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