Simulator for system testing

A simulation device comprising:

• a processor;
• and
• a computer readable medium, the computer readable medium comprising code, executable by the processor, for implementing a method comprising:
• engaging in a transaction communication session with a computing device in order to observe how a transaction system reacts to a specific transaction scenario, the simulation device storing instructions for a test transaction, the instructions including a set of predefined output messages and predefined input messages configured to simulate the specific transaction scenario;
• receiving a transaction input message from the computing device;
• determining that the transaction input message matches a predefined input message;
• identifying a predefined output message based on the matched predefined input message;
• and
• sending the predefined output message to the computing device, wherein a transaction report is generated that indicates how the computing device reacted to the specific transaction scenario.

A method comprising:

• engaging, by a computing device, in a transaction communication session with a simulation device;
• sending, by the computing device, a transaction input message to the simulation device, wherein the simulation device determines that the transaction input message matches a predefined input message, and wherein the simulation device identifies and transmits a predefined output message based on the matched predefined input message;
• receiving, by the computing device, the predefined output message from the simulation device, the predefined output message being part of a set of predefined output messages configured to simulate a specific transaction scenario;
• and
• processing, by the computing device, the transaction based on the received predefined output message, wherein a transaction report is generated that indicates how the computing device reacted to the specific transaction scenario.

A computing device comprising:

• a processor;
• and
• a computer readable medium, the computer readable medium comprising code, executable by the processor, for implementing a method comprising:
• engaging in a transaction communication session with a simulation device;
• sending a transaction input message to the simulation device, wherein the simulation device determines that the transaction input message matches a predefined input message, and wherein the simulation device identifies and transmits a predefined output message based on the matched predefined input message;
• receiving the predefined output message from the simulation device, the predefined output message being part of a set of predefined output messages configured to simulate a specific transaction scenario;
• and
• processing the transaction based on the received predefined output message, wherein a transaction report is generated that indicates how the computing device reacted to the specific transaction scenario.