Revert "Revert "HDFS-10430. Reuse FileSystem#access in TestAsyncDFS. Contributed by Xiaobing Zhou.""

This reverts commit f176311366eab0364458d055f248fb5796bdec23.

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestAsyncDFS.java

@@ -34,7 +34,6 @@ import static org.junit.Assert.fail;
 
 import java.io.IOException;
 import java.security.PrivilegedExceptionAction;
-import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -46,19 +45,16 @@ import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.CommonConfigurationKeys;
-import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.Options.Rename;
 import org.apache.hadoop.fs.permission.AclEntry;
 import org.apache.hadoop.fs.permission.AclStatus;
-import org.apache.hadoop.fs.permission.FsAction;
 import org.apache.hadoop.fs.permission.FsPermission;
 import org.apache.hadoop.hdfs.TestDFSPermission.PermissionGenerator;
 import org.apache.hadoop.hdfs.server.namenode.AclTestHelpers;
 import org.apache.hadoop.hdfs.server.namenode.FSAclBaseTest;
 import org.apache.hadoop.ipc.AsyncCallLimitExceededException;
-import org.apache.hadoop.security.AccessControlException;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.util.Time;
 import org.junit.After;
@@ -445,7 +441,7 @@ public class TestAsyncDFS {
     for (int i = 0; i < NUM_TESTS; i++) {
       assertTrue(fs.exists(dsts[i]));
       FsPermission fsPerm = new FsPermission(permissions[i]);
-      checkAccessPermissions(fs.getFileStatus(dsts[i]), fsPerm.getUserAction());
+      fs.access(dsts[i], fsPerm.getUserAction());
     }
 
     // test setOwner
@@ -474,34 +470,4 @@ public class TestAsyncDFS {
       assertTrue("group2".equals(fs.getFileStatus(dsts[i]).getGroup()));
     }
   }
-
-  static void checkAccessPermissions(FileStatus stat, FsAction mode)
-      throws IOException {
-    checkAccessPermissions(UserGroupInformation.getCurrentUser(), stat, mode);
-  }
-
-  static void checkAccessPermissions(final UserGroupInformation ugi,
-      FileStatus stat, FsAction mode) throws IOException {
-    FsPermission perm = stat.getPermission();
-    String user = ugi.getShortUserName();
-    List<String> groups = Arrays.asList(ugi.getGroupNames());
-
-    if (user.equals(stat.getOwner())) {
-      if (perm.getUserAction().implies(mode)) {
-        return;
-      }
-    } else if (groups.contains(stat.getGroup())) {
-      if (perm.getGroupAction().implies(mode)) {
-        return;
-      }
-    } else {
-      if (perm.getOtherAction().implies(mode)) {
-        return;
-      }
-    }
-    throw new AccessControlException(String.format(
-        "Permission denied: user=%s, path=\"%s\":%s:%s:%s%s", user, stat
-            .getPath(), stat.getOwner(), stat.getGroup(),
-        stat.isDirectory() ? "d" : "-", perm));
-  }
 }