UtilTest.java
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上传日期:2018-01-08
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文件大小:3k
- /**
- * 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.streaming;
- import java.io.File;
- import java.io.FileOutputStream;
- import java.io.IOException;
- import java.io.PrintStream;
- class UtilTest {
- /**
- * Utility routine to recurisvely delete a directory.
- * On normal return, the file does not exist.
- *
- * @param file File or directory to delete.
- *
- * @throws RuntimeException if the file, or some file within
- * it, could not be deleted.
- */
- static void recursiveDelete(File file) {
- file = file.getAbsoluteFile();
- if (!file.exists()) return;
-
- if (file.isDirectory()) {
- for (File child : file.listFiles()) {
- recursiveDelete(child);
- }
- }
- if (!file.delete()) {
- throw new RuntimeException("Failed to delete " + file);
- }
- }
-
- public UtilTest(String testName) {
- testName_ = testName;
- userDir_ = System.getProperty("user.dir");
- antTestDir_ = System.getProperty("test.build.data", userDir_);
- System.out.println("test.build.data-or-user.dir=" + antTestDir_);
- }
- void checkUserDir() {
- // trunk/src/contrib/streaming --> trunk/build/contrib/streaming/test/data
- if (!userDir_.equals(antTestDir_)) {
- // because changes to user.dir are ignored by File static methods.
- throw new IllegalStateException("user.dir != test.build.data. The junit Ant task must be forked.");
- }
- }
- void redirectIfAntJunit() throws IOException
- {
- boolean fromAntJunit = System.getProperty("test.build.data") != null;
- if (fromAntJunit) {
- new File(antTestDir_).mkdirs();
- File outFile = new File(antTestDir_, testName_+".log");
- PrintStream out = new PrintStream(new FileOutputStream(outFile));
- System.setOut(out);
- System.setErr(out);
- }
- }
- private String userDir_;
- private String antTestDir_;
- private String testName_;
- }