Added tests and slightly updated code for convenience

src/main/java/com/turn/ttorrent/common/Torrent.java

@@ -53,6 +53,7 @@
 
 import jargs.gnu.CmdLineParser;
 
+import org.apache.commons.io.FileUtils;
 import org.apache.log4j.BasicConfigurator;
 import org.apache.log4j.ConsoleAppender;
 import org.apache.log4j.PatternLayout;
@@ -408,15 +409,7 @@ public boolean isSeeder() {
 	 * @throws IOException If an I/O error occurs while writing the file.
 	 */
 	public void save(File file) throws IOException {
-      FileOutputStream fOut = null;
-      try {
-        fOut = new FileOutputStream(file);
-        fOut.write(this.getEncoded());
-      } finally {
-        if (fOut != null){
-          fOut.close();
-        }
-      }
+      FileUtils.writeByteArrayToFile(file, this.getEncoded());
 	}
 
 	public static byte[] hash(byte[] data) throws NoSuchAlgorithmException {

src/test/java/com/turn/ttorrent/TempFiles.java

@@ -1,18 +1,15 @@
 package com.turn.ttorrent;
 
+import org.apache.commons.io.FileUtils;
+
 import java.io.*;
 import java.util.*;
 
 public class TempFiles {
-  private static final File ourCurrentTempDir = FileUtil.getTempDirectory();
+  private static final File ourCurrentTempDir = FileUtils.getTempDirectory();
   private final File myCurrentTempDir;
 
-  private static Random ourRandom;
-
-  static {
-    ourRandom = new Random();
-    ourRandom.setSeed(System.currentTimeMillis());
-  }
+  private static Random ourRandom = new Random();
 
   private final List<File> myFilesToDelete = new ArrayList<File>();
   private final Thread myShutdownHook;
@@ -23,7 +20,7 @@ public TempFiles() {
     if (!myCurrentTempDir.isDirectory()) {
 
       throw new IllegalStateException("Temp directory is not a directory, was deleted by some process: " + myCurrentTempDir.getAbsolutePath() +
-          "\njava.io.tmpdir: " + FileUtil.getTempDirectory());
+          "\njava.io.tmpdir: " + FileUtils.getTempDirectory());
     }
 
     myShutdownHook = new Thread(new Runnable() {
@@ -55,12 +52,6 @@ private File doCreateTempFile(String prefix, String suffix) throws IOException {
     return file;
   }
 
-  public final File createTempFile(String content) throws IOException {
-    File tempFile = createTempFile();
-    FileUtil.writeFile(tempFile, content);
-    return tempFile;
-  }
-
   public final File createTempFile() throws IOException {
     File tempFile = doCreateTempFile("test", null);
     registerAsTempFile(tempFile);
@@ -123,10 +114,12 @@ public File getCurrentTempDir() {
   public void cleanup() {
     try {
       for (File file : myFilesToDelete) {
-        FileUtil.delete(file);
+        FileUtils.forceDelete(file);
       }
 
       myFilesToDelete.clear();
+    } catch (IOException e) {
+
     } finally {
       if (!myInsideShutdownHook) {
         Runtime.getRuntime().removeShutdownHook(myShutdownHook);

src/test/java/com/turn/ttorrent/WaitFor.java

@@ -8,26 +8,15 @@ protected WaitFor() {
   }
 
   protected WaitFor(long timeout) {
-    long started = System.currentTimeMillis();
+    long maxWaitMoment = System.currentTimeMillis() + timeout;
     try {
-      while(true) {
-        if (condition()) return;
-        if (System.currentTimeMillis() - started < timeout) {
-          Thread.sleep(myPollInterval);
-        } else {
-          break;
-        }
+      while(!condition() && System.currentTimeMillis() < maxWaitMoment){
+        Thread.sleep(myPollInterval);
       }
-
     } catch (InterruptedException e) {
       //NOP
     }
   }
 
-  protected WaitFor(long timeout, long pollInterval) {
-    this(timeout);
-    myPollInterval = pollInterval;
-  }
-
   protected abstract boolean condition();
 }