### Question:
OpenStorefrontRuntimeException extends RuntimeException { public String getErrorTypeCode() { return errorTypeCode; } OpenStorefrontRuntimeException(String message, String potentialResolution, Throwable thrwbl, String errorTypeCode);  OpenStorefrontRuntimeException(String message, String potentialResolution, String errorTypeCode);  OpenStorefrontRuntimeException();  OpenStorefrontRuntimeException(String message);  OpenStorefrontRuntimeException(String message, String potentialResolution);  OpenStorefrontRuntimeException(String message, Throwable thrwbl);  OpenStorefrontRuntimeException(String message, Throwable thrwbl, String errorTypeCode);  OpenStorefrontRuntimeException(String message, String potentialResolution, Throwable thrwbl);  OpenStorefrontRuntimeException(Throwable thrwbl); String getPotentialResolution(); String getErrorTypeCode(); @Override String getLocalizedMessage();  }### Answer:
@Test public void testGetErrorTypeCode() { LOG.info("getErrorTypeCode"); LOG.info("Scenario 1: With Code"); OpenStorefrontRuntimeException instance = new OpenStorefrontRuntimeException("test", "bad", "505"); String expResult = "505"; String result = instance.getErrorTypeCode(); assertEquals(expResult, result); LOG.info("Scenario 2: Without Code"); instance = new OpenStorefrontRuntimeException("test", "bad"); expResult = "SYS"; result = instance.getErrorTypeCode(); assertEquals(expResult, result); }