@Test
    public void testHelloError() {
        try {
            proxy.helloError("Fault for test purpose");
            Assert.fail("This should throw a SOAPFaultException");
        } catch (SOAPFaultException ex) {
            SOAPFault fault = ex.getFault();
            Assert.assertEquals("Fault for test purpose", fault.getFaultString());
           //....
        }
    }

org.junit.ComparisonFailure: expected:<[Fault for test purpose]> but was:<[WFLYEJB0442: Unexpected Error]>
	at org.junit.Assert.assertEquals(Assert.java:115)
	at org.junit.Assert.assertEquals(Assert.java:144)
	at org.jboss.as.test.integration.ws.basic.BasicTests.testHelloError(BasicTests.java:69)