Test dependencies in PHPUnit 3.4

PHPUnit has become the de-facto standard for unit testing PHP code. Now in version 3.4, it has added many new and interesting features to its repertoire.

Dependencies in PHPUnit tests

PHPUnit 3.4 now supports dependencies between different test methods. It allows you to execute a particular test ONLY IF the test that it depends on executes successfully. Take the following example (Listing 1.) where we test a linked-list class I developed earlier.
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