assertNotNull(variables.get("dateField"));
assertEquals(variables.get("dateField"), variables.getValueTyped("dateField").getValue());
assertEquals(ValueType.STRING, variables.getValueTyped("dateField").getType());
AbstractFormFieldType dateFormType = processEngineConfiguration.getFormTypes().getFormType("date");
Date dateValue = (Date) dateFormType.convertToModelValue(variables.getValueTyped("dateField")).getValue();
Calendar calendar = Calendar.getInstance();
calendar.setTime(dateValue);
assertEquals(10, calendar.get(Calendar.DAY_OF_MONTH));
assertEquals(Calendar.JANUARY, calendar.get(Calendar.MONTH));
assertEquals(2013, calendar.get(Calendar.YEAR));