ashvina commented on a change in pull request #1478: HDFS-14856 Fetch file ACLs while mounting external store URL: https://github.com/apache/hadoop/pull/1478#discussion_r330367667
########## File path: hadoop-tools/hadoop-fs2img/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFSTreeWalk.java ########## @@ -0,0 +1,100 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.hadoop.hdfs.server.namenode; + +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.fs.permission.AclStatus; +import org.apache.hadoop.hdfs.DFSConfigKeys; +import org.junit.Test; + +import java.util.HashMap; +import java.util.Map; + +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertNotNull; +import static org.junit.Assert.fail; +import static org.mockito.ArgumentMatchers.any; +import static org.mockito.Mockito.mock; +import static org.mockito.Mockito.when; + +/** + * Validate FSTreeWalk specific behavior. + */ +public class TestFSTreeWalk { + /** + * Verify that the ACLs are fetched when configured. + */ + @Test + public void testImportAcl() throws Exception { + Configuration conf = new Configuration(); + conf.setBoolean(DFSConfigKeys.DFS_PROVIDED_ACLS_IMPORT_ENABLED, true); + + FileSystem fs = mock(FileSystem.class); + Path root = mock(Path.class); + when(root.getFileSystem(conf)).thenReturn(fs); + + Map<Path, FileStatus> expectedChildren = new HashMap<>(); + FileStatus child1 = new FileStatus(0, true, 0, 0, 1, new Path("/a")); + FileStatus child2 = new FileStatus(0, true, 0, 0, 1, new Path("/b")); + expectedChildren.put(child1.getPath(), child1); + expectedChildren.put(child2.getPath(), child2); + when(fs.listStatus(root)) + .thenReturn(expectedChildren.values().toArray(new FileStatus[1])); + + AclStatus expectedAcls = mock(AclStatus.class); + when(fs.getAclStatus(any(Path.class))).thenReturn(expectedAcls); + + FSTreeWalk fsTreeWalk = new FSTreeWalk(root, conf); + + FileStatus rootFileStatus = new FileStatus(0, true, 0, 0, 1, root); + TreePath treePath = new TreePath(rootFileStatus, 1, null); + + Iterable<TreePath> result = fsTreeWalk.getChildren(treePath, 1, null); + for (TreePath path : result) { + FileStatus expectedChildStatus + = expectedChildren.remove(path.getFileStatus().getPath()); + assertNotNull(expectedChildStatus); + + AclStatus childAcl = path.getAclStatus(); + assertEquals(expectedAcls, childAcl); + } + + assertEquals(0, expectedChildren.size()); + } + + @Test(expected = UnsupportedOperationException.class) + public void testACLNotSupported() throws Exception { + Configuration conf = new Configuration(); + conf.setBoolean(DFSConfigKeys.DFS_PROVIDED_ACLS_IMPORT_ENABLED, true); + + FileSystem fs = mock(FileSystem.class); + when(fs.getAclStatus(any())).thenThrow(new UnsupportedOperationException()); + Path root = mock(Path.class); + when(root.getFileSystem(conf)).thenReturn(fs); + FileStatus rootFileStatus = new FileStatus(0, true, 0, 0, 1, root); + when(fs.getFileStatus(root)).thenReturn(rootFileStatus); + + FSTreeWalk fsTreeWalk = new FSTreeWalk(root, conf); + for (TreePath treePath : fsTreeWalk) { + fail("Unexpected successful traversal of remote FS: " + treePath); Review comment: The iterator is never empty as it would always return the `root` if the remote FS supports ACLs. In this specific case, `iterator.next` is expected to throw `UnsupportedOperationException`. If it does not the test will fail. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org
