Method for testing a heat-cooking appliance of a heat-cooking system provided with: the heat-cooking appliance for heating an article for cooking, and a portable terminal for wirelessly communicating by means of an indirect communication method which affords communication with the heat-cooking appliance via a wireless relay, wherein the heat-cooking appliance and the portable terminal has stored in a memory unit: processing content of a test mode for confirming operation of a communication function of the heat-cooking appliance; wherein the heat-cooking appliance has stored in a memory unit: test execution information (d) including information for instructing execution of the test mode from the portable terminal; the system is adapted in such a way as to enable setting of a state in which communication is performed by a direct communication method which affords direct communication between the heat-cooking appliance and the portable terminal, and in a state of communication by the direct communication method the following steps are executed: - the portable terminal acquires the test execution information (d) from the memory unit of the heat-cooking appliance, - the portable terminal instructs execution of the test mode to the heat-cooking appliance by utilizing the acquired test execution information (d), - and the heat-cooking appliance executes the test mode of the processing content either received from the portable terminal that has sent the processing content to the heat-cooking appliance or stored in the memory unit of the heat-cooking appliance when the test mode execution is instructed. processing content of a test mode for confirming operation of a communication function of the heat-cooking appliance; wherein the heat-cooking appliance has stored in a memory unit: test execution information (d) including information for instructing execution of the test mode from the portable terminal; the system is adapted in such a way as to enable setting of a state in which communication is performed by a direct communication method which affords direct communication between the heat-cooking appliance and the portable terminal, and in a state of communication by the direct communication method the following steps are executed: - the portable terminal acquires the test execution information (d) from the memory unit of the heat-cooking appliance, - the portable terminal instructs execution of the test mode to the heat-cooking appliance by utilizing the acquired test execution information (d), - and the heat-cooking appliance executes the test mode of the processing content either received from the portable terminal that has sent the processing content to the heat-cooking appliance or stored in the memory unit of the heat-cooking appliance when the test mode execution is instructed. - the portable terminal acquires the test execution information (d) from the memory unit of the heat-cooking appliance, - the portable terminal instructs execution of the test mode to the heat-cooking appliance by utilizing the acquired test execution information (d), - and the heat-cooking appliance executes the test mode of the processing content either received from the portable terminal that has sent the processing content to the heat-cooking appliance or stored in the memory unit of the heat-cooking appliance when the test mode execution is instructed.