public function testBeforeFilters()
{
$collection = new Collection();
$taskA = new CollectionTestTask('a', 'value-a');
$taskB = new CollectionTestTask('b', 'value-b');
$collection->add($taskA, 'a-name')->add($taskB, 'b-name');
// We add methods of our task instances as before and
// after tasks. These methods have access to the task
// class' fields, and may modify them as needed.
$collection->before('b-name', [$taskA, 'parenthesizer'])->before('b-name', [$taskA, 'emphasizer'], 'special-before-name');
$result = $collection->run();
// Ensure that the results have the correct key values
verify(implode(',', array_keys($result->getData())))->equals('a-name,b-name,special-before-name,time');
// The result from the 'before' task is attached
// to 'b-name', since it was called as before('b-name', ...)
verify($result['b-name']['a'])->equals('(value-a)');
// When a 'before' task is given its own name, then
// its results are attached under that name.
verify($result['special-before-name']['a'])->equals('*(value-a)*');
}
