Copy & Paste Detection in PHPUnit 3.2

Sebastian Bergmann » 22 August 2007 » in New Features » 0 Comments

Version 3.2 of PHPUnit is shaping up nicely. In this blog posting I want to highlight another aspect of PHPUnit's new Project Mess Detector feature set.

Duplicate code can be hard to find, especially in a large project. Johann-Peter Hartmann of MAYFLOWER GmbH recently implemented Copy & Paste Detection for PHPUnit's growing set of features that extends its usage scenarios beyond "just unit testing" to a one-stop solution for quality assurance in PHP-based projects.

Here is an example of how PHPUnit 3.2 will report code duplication:

<?xml version="1.0" encoding="UTF-8"?>
<pmd-cpd version="PHPUnit 3.2.0">
  <duplication lines="12" tokens="56">
    <file path="/usr/local/src/ezcomponents/trunk/Graph/src/driver/svg.php"
               line="197"/>
    <file path="/usr/local/src/ezcomponents/trunk/Graph/src/driver/svg.php"
               line="248"/>
    <codefragment><![CDATA[
if ( !in_array( $color->__toString(), $this->drawnGradients, true ) )
{
    $gradient = $this->dom->createElement( 'linearGradient' );
    $gradient->setAttribute( 'id', 'Definition_' . $color->__toString() );
    $this->defs->appendChild( $gradient );

    // Start of linear gradient
    $stop = $this->dom->createElement( 'stop' );
    $stop->setAttribute( 'offset', 0 );
    $stop->setAttribute(
      'style',
      sprintf( 'stop-color: #%02x%02x%02x; stop-opacity: %.2F;',
               $color->startColor->red,
               $color->startColor->green,
]]></codefragment>
  </duplication>

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Manuel Pichler 18/11/2007 at 21:52

This is the first release of the phpUnderControl tool. This tool aims to take the first steps with CruiseControl and PHP as easy as possible. phpUnderControl integrates three of the best PHP development tools into CruiseControl, combined with an easy se
Sebastian Bergmann 19/11/2007 at 12:06

Sebastian Bergmann and his contributors are proud to announce the immediate availability of PHPUnit 3.2. This release is a major improvement to the popular open source testing solution for PHP applications. It includes new features and bug fixes. High

Sebastian Bergmann