package junit.tests.runner;import java.io.File;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.io.PrintStream;import junit.framework.TestCase;import junit.framework.TestResult;import junit.framework.TestSuite;public class TextRunnerTest extends TestCase {		public void testFailure() throws Exception {		execTest("junit.tests.framework.Failure", false);	}	public void testSuccess() throws Exception {		execTest("junit.tests.framework.Success", true);	}	public void testError() throws Exception {		execTest("junit.tests.BogusDude", false);	}		void execTest(String testClass, boolean success) throws Exception {		String java= System.getProperty("java.home")+File.separator+"bin"+File.separator+"java";		String cp= System.getProperty("java.class.path");		//use -classpath for JDK 1.1.7 compatibility		String [] cmd= { java, "-classpath", cp, "junit.textui.TestRunner", testClass}; 		Process p= Runtime.getRuntime().exec(cmd);		InputStream i= p.getInputStream();		int b;		while((b= i.read()) != -1) 			; //System.out.write(b); 		assertTrue((p.waitFor() == 0) == success);		if (success)			assertEquals(junit.textui.TestRunner.SUCCESS_EXIT, p.exitValue());		else			assertEquals(junit.textui.TestRunner.FAILURE_EXIT, p.exitValue());	}		public void testRunReturnsResult() {		PrintStream oldOut= System.out;		System.setOut(new PrintStream (			new OutputStream() {				public void write(int arg0) throws IOException {				}			}		));		try {
			TestResult result= junit.textui.TestRunner.run(new TestSuite());			assertTrue(result.wasSuccessful());		} finally {			System.setOut(oldOut);
		}	}		}