Method and device for retrieving test case based on code coverage

A computer-implemented device, comprising:

• memory storing instructions;
• and
• a processor coupled to the memory and operative to execute the instructions to form functional modules collectively operative to test a software program, the modules including:
• a creating module configured to create a mapping table expressing a mapping between source code of the software program and test cases based on code coverage, wherein the source code is stored within a source code repository on a data storage system and the source code includes classes and functions, each class including one or more of the functions, the mapping table including a plurality of mapping entries each associating a respective test with a corresponding function and a corresponding class that includes the function;
• an obtaining module configured to, in response to a change in the source code, obtain a test case for the change based on the mapping in the mapping table, wherein the test case is selected from a plurality of test cases available to test the source code, by (1) in a first case in which a function has changed, obtaining a first test case based on a first association of the first test case with the function in the mapping table, and (2) in a second case in which a class including the function has changed, obtaining a second test case based on a second association of the second test case with the class in the mapping table;
• wherein the device is enabled to execute the software program according to the obtained test case to test the change in the source code,
• and wherein the function is a first function and the first association associates the first test case with both the first function and the class, and wherein the mapping table includes one or more additional entries making a second association between the second test case, the class, and a second function of the class, such that selection of the second test case includes coverage of the class but not of the first function of the class.

A computer program product, comprising:

• a non-transitory computer readable medium encoded with computer-executable code for testing a software program, wherein the code is configured to enable the execution of:
• creating a mapping table expressing a mapping between source code of the software program and test cases based on code coverage, wherein the source code is stored within a source code repository on a data storage system and the source code includes classes and functions, each class including one or more of the functions, the mapping table including a plurality of mapping entries each associating a respective test with a corresponding function and a corresponding class that includes the function;
• in response to a change in the source code, obtaining a test case for the change based on the mapping in the mapping table, wherein the test case is selected from a plurality of test cases available to test the source code, by (1) in a first case in which a function has changed, obtaining a first test case based on a first association of the first test case with the function in the mapping table, and (2) in a second case in which a class including the function has changed, obtaining a second test case based on a second association of the second test case with the class in the mapping table;
• and
• executing the software program according to the obtained test case to test the change in the source code,
• wherein the function is a first function and the first association associates the first test case with both the first function and the class, and wherein the mapping table includes one or more additional entries making a second association between the second test case, the class, and a second function of the class, such that selection of the second test case includes coverage of the class but not of the first function of the class.