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IOTinyUtilsTest.java
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IOTinyUtilsTest.java
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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.rocketmq.common.utils;
import org.apache.rocketmq.common.UtilAll;
import org.apache.rocketmq.remoting.common.RemotingHelper;
import static org.junit.Assert.*;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import java.io.*;
import java.lang.reflect.Method;
import java.util.List;
public class IOTinyUtilsTest {
private String testRootDir = System.getProperty("user.home") + File.separator + "iotinyutilstest";
@Before
public void init() {
File dir = new File(testRootDir);
if (dir.exists()) {
UtilAll.deleteFile(dir);
}
dir.mkdirs();
}
@After
public void destory() {
File file = new File(testRootDir);
UtilAll.deleteFile(file);
}
@Test
public void testToString() throws Exception {
byte[] b = "testToString".getBytes(RemotingHelper.DEFAULT_CHARSET);
InputStream is = new ByteArrayInputStream(b);
String str = IOTinyUtils.toString(is, null);
assertEquals("testToString", str);
is = new ByteArrayInputStream(b);
str = IOTinyUtils.toString(is, RemotingHelper.DEFAULT_CHARSET);
assertEquals("testToString", str);
is = new ByteArrayInputStream(b);
Reader isr = new InputStreamReader(is, RemotingHelper.DEFAULT_CHARSET);
str = IOTinyUtils.toString(isr);
assertEquals("testToString", str);
}
@Test
public void testCopy() throws Exception {
char[] arr = "testToString".toCharArray();
Reader reader = new CharArrayReader(arr);
Writer writer = new CharArrayWriter();
long count = IOTinyUtils.copy(reader, writer);
assertEquals(arr.length, count);
}
@Test
public void testReadLines() throws Exception {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < 10; i++) {
sb.append("testReadLines").append("\n");
}
StringReader reader = new StringReader(sb.toString());
List<String> lines = IOTinyUtils.readLines(reader);
assertEquals(10, lines.size());
}
@Test
public void testToBufferedReader() throws Exception {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < 10; i++) {
sb.append("testToBufferedReader").append("\n");
}
StringReader reader = new StringReader(sb.toString());
Method method = IOTinyUtils.class.getDeclaredMethod("toBufferedReader", new Class[]{Reader.class});
method.setAccessible(true);
Object bReader = method.invoke(IOTinyUtils.class, reader);
assertTrue(bReader instanceof BufferedReader);
}
@Test
public void testWriteStringToFile() throws Exception {
File file = new File(testRootDir, "testWriteStringToFile");
assertTrue(!file.exists());
IOTinyUtils.writeStringToFile(file, "testWriteStringToFile", RemotingHelper.DEFAULT_CHARSET);
assertTrue(file.exists());
}
@Test
public void testCleanDirectory() throws Exception {
for (int i = 0; i < 10; i++) {
IOTinyUtils.writeStringToFile(new File(testRootDir, "testCleanDirectory" + i), "testCleanDirectory", RemotingHelper.DEFAULT_CHARSET);
}
File dir = new File(testRootDir);
assertTrue(dir.exists() && dir.isDirectory());
assertTrue(dir.listFiles().length > 0);
IOTinyUtils.cleanDirectory(new File(testRootDir));
assertTrue(dir.listFiles().length == 0);
}
@Test
public void testDelete() throws Exception {
for (int i = 0; i < 10; i++) {
IOTinyUtils.writeStringToFile(new File(testRootDir, "testDelete" + i), "testCleanDirectory", RemotingHelper.DEFAULT_CHARSET);
}
File dir = new File(testRootDir);
assertTrue(dir.exists() && dir.isDirectory());
assertTrue(dir.listFiles().length > 0);
IOTinyUtils.delete(new File(testRootDir));
assertTrue(!dir.exists());
}
@Test
public void testCopyFile() throws Exception {
File source = new File(testRootDir, "soruce");
String target = testRootDir + File.separator + "dest";
IOTinyUtils.writeStringToFile(source, "testCopyFile", RemotingHelper.DEFAULT_CHARSET);
IOTinyUtils.copyFile(source.getCanonicalPath(), target);
File dest = new File(target);
assertTrue(dest.exists());
}
}