TestFsPermission.java
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上传日期:2018-01-08
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- /**
- * 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.fs.permission;
- import junit.framework.TestCase;
- import static org.apache.hadoop.fs.permission.FsAction.*;
- public class TestFsPermission extends TestCase {
- public void testFsAction() {
- //implies
- for(FsAction a : FsAction.values()) {
- assertTrue(ALL.implies(a));
- }
- for(FsAction a : FsAction.values()) {
- assertTrue(a == NONE? NONE.implies(a): !NONE.implies(a));
- }
- for(FsAction a : FsAction.values()) {
- assertTrue(a == READ_EXECUTE || a == READ || a == EXECUTE || a == NONE?
- READ_EXECUTE.implies(a): !READ_EXECUTE.implies(a));
- }
- //masks
- assertEquals(EXECUTE, EXECUTE.and(READ_EXECUTE));
- assertEquals(READ, READ.and(READ_EXECUTE));
- assertEquals(NONE, WRITE.and(READ_EXECUTE));
- assertEquals(READ, READ_EXECUTE.and(READ_WRITE));
- assertEquals(NONE, READ_EXECUTE.and(WRITE));
- assertEquals(WRITE_EXECUTE, ALL.and(WRITE_EXECUTE));
- }
- public void testFsPermission() {
- for(short s = 0; s < (1<<9); s++) {
- assertEquals(s, new FsPermission(s).toShort());
- }
- String symbolic = "-rwxrwxrwx";
- StringBuilder b = new StringBuilder("-123456789");
- for(int i = 0; i < (1<<9); i++) {
- for(int j = 1; j < 10; j++) {
- b.setCharAt(j, '-');
- }
- String binary = Integer.toBinaryString(i);
- int len = binary.length();
- for(int j = 0; j < len; j++) {
- if (binary.charAt(j) == '1') {
- int k = 9 - (len - 1 - j);
- b.setCharAt(k, symbolic.charAt(k));
- }
- }
- assertEquals(i, FsPermission.valueOf(b.toString()).toShort());
- }
- }
- }