Service virtualization
An application in production may communicate with one or more heterogeneous services, including requesting and receiving data from a one or more data sources. The communication between the application and the services can include complicated scenarios making facilitating end-to-end testing of the application difficult. The disclosed service virtualization solution works in two stages of ‘record and replay’ to simulate a backend service. During the recording stage, the disclosed tool intercepts the data flow between the client and the service and records the data and during the replay stage, the disclosed tool creates a proxy service that simulates the responses of service application by reading the recorded session file, allowing for the client application to be tested without having to connect to the actual service application.
1 . A method for conducting a testing scenario, the method comprising:
intercepting data transmissions between a client application and a service application, wherein each of the data transmissions includes one or more data packets;
recording the one or more data packets associated with each of the data transmissions as a recording;
storing time interval data associated with each of the one or more data packets, the time interval data defining an amount of time between each subsequent data packet in the data transmissions;
allowing each of the data transmissions to continue when the service application is unavailable; and
mimicking the service application by replaying the data transmissions of the service application by transmitting the one or more data packets at time intervals that correspond to the time interval data associated with each of the one or more data packets.
2 . The method of claim 1 , wherein the one or more data packets associated with each of the data transmissions is recorded without decrypting the one or more data packets.
3 . The method of claim 1 , further comprising selecting the data transmissions based upon whether the data transmissions originated from the client application or whether the data transmissions originated from the service application.
4 . The method of claim 1 , further comprising adding one or more markers to the recording to indicate that timing of a subsequent data transmission from the client application is variable.
5 . The method of claim 4 , wherein upon encountering each of the one or more markers on the recording,
pausing the replaying of the data transmissions; and
upon receiving the subsequent data transmission from the client application, continuing the replaying of the data transmissions.
6 . The method of claim 5 , further comprising executing one or more scripts that automatically pause and un-pause the replaying of the data transmissions.
7 . The method of claim 1 , wherein the data transmissions between the client application and the service application use a Transmission Control Protocol (TCP) protocol.
8 . The method of claim 1 , wherein the data transmissions are a serialized stream of bytes.
9 . The method of claim 1 , wherein at least one of the client application and the service application is associated with a financial institution.
10 . The method of claim 1 , wherein the data transmissions include a transmission of binary serialized data.
11 . A system for conducting a testing scenario, the system comprising:
a processing unit; and
system memory, the system memory including instructions which, when executed by the processing unit, cause the system to:
intercept data transmissions between a client application and a service application, wherein each of the data transmissions includes one or more data packets;
record the one or more data packets associated with each of the data transmissions as a recording;
store time interval data associated with each of the one or more data packets, the time interval data defining an amount of time between each subsequent data packet in the data transmissions;
allow each of the data transmissions to continue when the service application is unavailable; and
mimic the service application by replaying the data transmissions of the service application by transmitting the one or more data packets at time intervals that correspond to the time interval data associated with each of the one or more data packets.
12 . The system of claim 11 , wherein the one or more data packets associated with each of the data transmissions is recorded without decrypting the one or more data packets.
13 . The system of claim 11 , wherein the instructions, when executed by the processing unit, further cause the system to select the data transmissions based upon whether the data transmissions originated from the client application or whether the data transmissions originated from the service application.
14 . The system of claim 11 , wherein the instructions, when executed by the processing unit, further cause the system to add one or more markers to the recording to indicate that timing of a subsequent data transmission from the client application is variable.
15 . The system of claim 14 , wherein upon encountering each of the one or more markers on the recording, pausing the replaying of the data transmissions until the subsequent data transmission is received from the client application.
16 . The system of claim 15 , wherein the instructions, when executed by the processing unit, further cause the system to execute one or more scripts that automatically pause and un-pause the replaying of the data transmissions.
17 . The system of claim 11 , wherein the data transmissions between the client application and the service application use a Transmission Control Protocol (TCP) protocol.
18 . The system of claim 11 , wherein the data transmissions are a serialized stream of bytes.
19 . The system of claim 11 , wherein at least one of the client application and the service application is associated with a financial institution.
20 . The system of claim 11 , wherein the data transmissions include a transmission of binary serialized data.