package de.jflex.example.standalone;import java.io.BufferedReader;import java.io.File;import java.io.FileOutputStream;import java.io.FileReader;import java.io.IOException;import java.io.PrintStream;import java.io.Reader;import junit.framework.TestCase;public class SubstTest extends TestCase {	private static final String OUTPUT_FILE = "target/sample.out";	public void testSample() throws IOException {		// the standalon Subst prints status on stdout		// redirecte it into a file		String[] argv = new String[1];		argv[0] = "src/test/resources/sample.in";		File actual = new File(OUTPUT_FILE);		actual.delete();		FileOutputStream fos = new FileOutputStream(OUTPUT_FILE, true);		System.setOut(new PrintStream(fos));		Subst.main(argv);		fos.close();		BufferedReader actualContent = new BufferedReader(new FileReader(				actual));		// the expected result is in a file		Reader expected = new FileReader("src/test/resources/sample.expected");		BufferedReader expectedContent = new BufferedReader(expected);		String expectedLine, actualLine;		do {			expectedLine = expectedContent.readLine();			actualLine = actualContent.readLine();			assertEquals(expectedLine, actualLine);		} while (expectedLine != null);	}}