US 10,095,611 B1Granted

Methodology for unit test and regression framework

AssigneeInfinera Corporation

InventorsJayaram Hanumanthappa, Ravi Shankar Pandey, Rajasekar Venkatesan, Anthony Jorgenson

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Abstract

Disclosures herein describe a record and replay regression and unit test automation framework for simulating any hardware on a virtual machine to achieve thorough, affordable and efficient software testing. According to the disclosures herein, the test automation framework includes a recording stage where input and output messages for all the interfaces for a process (e.g., an embedded system or any software system or process) running on the original hardware may be recorded along with metadata in a space-optimized and efficient manner. The testing framework also includes a replay stage using innovative thread synchronization approaches that leverage the metadata to simulate the environment for the recorded embedded process in isolation, which may be done on an inexpensive machine or hardware. Thus, the original custom hardware, which may be expensive and costly to run, is not needed for the replay phase of testing.

Claims20

Dependent claims

A system configured to perform automated record and replay regression and unit testing of a process, the system comprising:

a processing device, during a recording phase, configured to:
tap and record all input messages to a first instance of the process and all output messages from the first instance of the process for at least one test case to generate a plurality of messages that capture a complete external environment of the process during the recording phase;
for each message of the plurality of messages, generate a record including the message and associated meta information, wherein the associated meta information is used to replay the plurality of messages in a replay phase to test the process, and wherein the meta information includes at least a sequence number used to define a timing order of the plurality of messages during the recording phase;
store the generated records in a database;
and
the processing device, during a replay phase, configured to:
retrieve the records stored in the database;
populate a queue with the plurality of messages in the stored records based on the associated meta information;
and
replay a second instance of the process by executing a plurality of threads associated with the second instance of the process in parallel and accessing the plurality of messages from the queue in accordance with the meta information to synchronize the plurality of threads and recreate the complete external environment of the process in order to detect errors in the second instance of the process during the replay phase.

7 more elements

A method for performing automated record and replay regression and unit testing of a process, the method comprising:

during a recording phase:
tapping and recording all input messages to a first instance of the process and all output messages from the first instance of the process for at least one test case to generate a plurality of messages that capture a complete external environment of the process during the recording phase;
for each message of the plurality of messages, generating a record including the message and associated meta information, wherein the associated meta information is used to replay the plurality of messages in a replay phase to test the process, and wherein the meta information includes at least a sequence number used to define a timing order of the plurality of messages during the recording phase;
storing the generated records in a database;
and
during a replay phase:
retrieving the records stored in the database;
populating a queue with the plurality of messages in the stored records based on the associated meta information;
and
replaying a second instance of the process by executing a plurality of threads associated with the second instance of the process in parallel and accessing the plurality of messages from the queue in accordance with the meta information to synchronize the plurality of threads and recreate the complete external environment of the process in order to detect errors in the second instance of the process during the replay phase.

7 more elements

Dependencies are inferred from the claim text.