client.setUsername(ANOTHER_USER);
client.setUsername(ANOTHER_TEST_USER);
    private void prepareTestFile(File mu, OneTest thisTest) throws FileNotFoundException, SVNClientException {        PrintWriter pw = new PrintWriter(new FileOutputStream(mu, true));        pw.println("some text in line1");        pw.println("some text in line2");        pw.println("some text in line3");        pw.close();        client.commit(new File[] {mu}, "log msg2", true);        pw = new PrintWriter(new FileOutputStream(mu, false));        pw.println("some new text in line1");        pw.println("some text in line2");        pw.println("some new text in line3");        pw.close();        client.commit(new File[] {mu}, "log msg3", true);        client.setUsername(ANOTHER_USER);        pw = new PrintWriter(new FileOutputStream(mu, true));        pw.println("some new line4");        pw.close();        client.commit(new File[] {mu}, "log msg4", true);        client.setUsername(TEST_USER);    }