    @Test
    public void toString_should_return_the_stacktrace() {

        Exception ex = new Exception("Erf");
        String str = ExceptionUtils.toString(ex);
        assertThat(str).startsWith("" +
                "java.lang.Exception: Erf\n" +
                "\tat tzatziki.util.ExceptionUtilsTest.toString_should_return_the_stacktrace(ExceptionUtilsTest.java:");
    }