B-Refactoring / Banana-refactoring

This repository contains a research prototype for automatically refactoring test cases in smaller parts, with a technique called B-Refactoring.

Main publication: B-Refactoring: Automatic Test Code Refactoring to Improve Dynamic Analysis (Jifeng Xuan, Benoit Cornu, Matias Martinez, Benoit Baudry, Lionel Seinturier, Martin Monperrus), In Information and Software Technology, Elsevier, 2016, doi:10.1016/j.infsof.2016.04.016.

@article{xuan:hal-01309004,
 title = {B-Refactoring: Automatic Test Code Refactoring to Improve Dynamic Analysis},
 author = {Xuan, Jifeng and Cornu, Benoit and Martinez, Matias and Baudry, Benoit and Seinturier, Lionel and Monperrus, Martin},
 journal = {Information and Software Technology},
 publisher = {Elsevier},
 doi = {10.1016/j.infsof.2016.04.016},
 year = {2016},
}

Previous paper: Dynamic Analysis can be Improved with Automatic Test Suite Refactoring (Jifeng Xuan, Benoit Cornu, Matias Martinez, Benoit Baudry, Lionel Seinturier, Martin Monperrus), Technical report 1506.01883, Arxiv, 2015

Contact: Martin Monperrus

Compilation

We provide the guidelines for the Eclipse IDE.

git clone https://github.com/Spirals-Team/banana-refactoring
cd banana-refactoring/
mvn eclipse:eclipse

Now, import and open the project in the Eclipse IDE (File >> Import >> Existing project into workspace)

Sample usage

We now consider the example provided in the repo (spojo-core).

cd example
mvn eclipse:eclipse

import the project spojo-core in the Eclipse IDE.

banana-refactoring uses code transformation, so you need to clone the example project (copy and paste) in say spojo-core-refactored.

Add as dependency of spojo-core-refactored, the banana-refactoring project.

Go to class bcu.nopol.main.Launcher.java and set the constants:

• WORKSPACE_METADATA_PATH
• ORIG_ECLIPSE_PROJECT_NAME
• TARGET_ECLIPSE_PROJECT_NAME
• OUTPUT_PROJECT_PATH

Run bcu.nopol.main.Launcher.main with argument "-1" (Run >> Run configurations). This transforms the source code of test classes and application classes of spojo-core and put the instrumented version in TARGET_ECLIPSE_PROJECT_NAME. Refresh the project spojo-core-refactored to force full re-compilation.

Run bcu.nopol.main.Launcher.main with argument "-2". This computes the number of pure and impure tests, and the file cutsPerIf and split the test cases. Refresh the project spojo-core-refactored to force full re-compilation (esp of the split test cases).

That's it, you have the refactored test suite!

** If one of the phase fails, always start at phase #1 again **