Method: CONSTRUCTOR
Method: TEST_SALES_TAX
Method: TEST_DESCRIPTION
Method: TEST_REGISTER_RESPONSE_RECEIVE
Method: TEST_LONG_TEXTS_DATA
Method: TEST_COMMON_DATA
Method: TEST_SALES_LONG_TEXTS
Method: TEST_INITIALIZE
Method: TEST_INPUT_VALIDATION
Method: TEST_CLASSIFICATION
Method: TEST_CHANGE
Method: TEST_PURCHASE_TAX