TestCocoon Presentation Qt Summit 2011

From Qt Wiki
Jump to: navigation, search
This article is nominated for deletion. Reason: Outdated information
Please raise your support/opposition to this nomination in the article's Discussion page.
This article may require cleanup to meet the Qt Wiki's quality standards. Reason: Auto-imported from ExpressionEngine.
Please improve this article if you can. Remove the {{cleanup}} tag and add this page to Updated pages list after it's clean.

Project name and goals

Presentation of TestCocoon at the "Qt Contributor’s Summit" in June 2011.

Description of TestCocoon

TestCocoon is a complete code coverage tool chain for C/C++ and C# programs available under AppleMac OS X, Linux™ or Microsoft® Windows. It analyzes the performance of a software validation and permits to measure the performance and optimizes the testing process of a C/C++ or C# applications:

  • Finding untested code sections.
  • Reducing the amount of tests by finding redundant tests.

With TestCocoon it is possible to find which portion of the source code is covered only by one execution of a test, and to detect if a new test does not cover more source code line than existing tests.

  • Finding dead code trough displaying the code parts which are never executed.
  • Specially useful for manual testing: TestCocoon is able to calculate the optimal execution order of tests which maximize the overall coverage after each run.
  • Also, TestCocoon is able to perform its analysis on a difference of two applications.

This permits to find which tests are impacted by a source code modification and permits to measure the test quality of a patch or a hot fix.

TestCocoon can be uses for every testing steps and methodologies (unit tests, automatic tests, manual white box tests, black box tests, etc. . . ), and permits to collect and merge the execution reports together.

It is composed of 3 tools:

  1. CoverageScanner, which analyzes, instruments and generates the C/C++ or C# application.
  2. CoverageBrowser, which displays and manages the results of the coverage analysis. black box interactive tests.
  3. An optional Microsoft® Visual Studio® 2005 & 2008 Add-In which permits to generate code coverage configurations from every C/C++ projects created by Microsoft® Visual Studio®.

Relationship with Qt

  • All tools except CoverageScanner are generated using the Qt framework.
  • TestCocoon provides a specific code coverage analysis for Qt applications which permits:
  1. not instrument the contain of Q_OBJECT, Q_EXPORT_PLUGIN, Q_DECLARE_METATYPE, . . . macros.
  2. instrument the emission of a signal, but not the engine code generated my the moc compiler.

Contact person by Nokia: Bill King. Sandbox repository: Qt-Creator instrumented using TestCocoon on Gitorious

Planed deliverables

Presentation of TestCocoon:

  • General presentation of code coverage technique.
  • Features and design of TestCocoon.
  • How to instrument Qt applications.
  • Live demonstration of Qt-Creator instrumented with TestCocoon.

Open discussion with Qt-stakeholders:

  • Integration in build systems (qmake, cmake, . . . ).
  • Integration in Qt-Creator.
  • Integration in continuous build server (Hudson, Pulse, . . . ).
  • New idea, or features.

Amount of support required

820 Euro for hotel and fly ticket.


Answer required before the 1st June 2011.

Contact person

Sébastien Fricker sebastien.fricker@gmail.com http://www.testcocoon.org