@org.junit.Test
    public void test2FindEmails() {
        System.out.println("test2_findEmails");
        String longText = "matgor004@utp.edu.pl jan_kowalski.1@wp.pl x+y-z@gmail.com andrzejjanusz@o2.pl";
        zipCode_and_emails instance = new zipCode_and_emails();
        List<String> expResult = new ArrayList<>();
        expResult.add("matgor004@utp.edu.pl");
        expResult.add("jan_kowalski.1@wp.pl");
        expResult.add("x+y-z@gmail.com");
        expResult.add("andrzejjanusz@o2.pl");
        List<String> result = instance.findEmails(longText);
        assertEquals(expResult, result);
    }

    @org.junit.Test
    public void test3FindEmails() {
        System.out.println("test3_findEmails");
        String longText = "Jakiś tekst, tutaj e-mail matgor004@utp.edu.pl. Tutaj kolejny: jan_kowalski.1@wp.pl. A tu następne dwa: andrzejjanusz@o2.pl, x+y-z@gmail.com";
        zipCode_and_emails instance = new zipCode_and_emails();
        List<String> expResult = new ArrayList<>();
        expResult.add("matgor004@utp.edu.pl");
        expResult.add("jan_kowalski.1@wp.pl");
        expResult.add("andrzejjanusz@o2.pl");
        expResult.add("x+y-z@gmail.com");
        List<String> result = instance.findEmails(longText);
        assertEquals(expResult, result);
    }