Java: JUnit test for StringReaderHelper.java

StreamReaderHelperTest.java

package us.greg;
import java.io.ByteArrayInputStream;
import java.net.URLEncoder;

import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

public class StreamReaderHelperTest {
	String request = "http://localhost:8080/atm/prefs?customerID=123456789&atm=FG3781";
	
	 /*
	  *  this is the test for my helper function
	  */
	  @Test
	  public void streamReaderTest() { 
		  try {
			  String testData = URLEncoder.encode(request, "UTF-8");
			  byte[] bytes = testData.getBytes();
			  ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
			  String data = StreamReaderHelper.readStream(bais);
			  assertEquals("http", data.substring(0, 4));
		  } catch(Exception e) {
			  fail();
		  }
		  assertTrue(true);
	  }
}