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Sonar in Action

by Frédéric DROUET and Arnaud HERITIER

02/03/2011

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Agenda

» How do we measure the code quality ?

» The 7 worst practices

» The Goals of Sonar

» Demonstration on YOUR code

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Why do we need this kind of tool

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How do we measure the code quality ?

In the past

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How do we measure the code quality ?

That is not sufficient !

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How do we measure the code quality ?

Today : we need to measure the Technical Debt …

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How do we measure the code quality ?

… and to monitor this Technical Debt …

… to take corrective actions without being blind

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The 7 worst practices

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The 7 worst practices

1- Duplicated code

»  Which one do you prefer ?

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The 7 worst practices

2- Maldistribution of the complexity

»  What is the best ?

»  1 method with a complexity of 30

»  10 methods with a complexity of 3

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The 7 worst practices

3- Bad design

»  Which package / class

is responsible of what ?

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The 7 worst practices

4- Potential bugs

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The 7 worst practices

5- Little or no use of unit tests

»  Please add a new case BUT without any regression of course

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The 7 worst practices

6- Non-compliance with standards

»  We have opened a dedicated Wiki Space for Development Standards for eXo

»  https://wiki-int.exoplatform.org/display/DEVSTD

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The 7 worst practices

7- No comment or too many comments

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The goals of Sonar

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The goals of Sonar

» Help the developer to find the problems

» Help the managers to monitor the health of the codebase and to follow the trends

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Demonstration

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Demonstration » https://sonar.exoplatform.org