Tests conditions.
public function testConditions() {
// Grab the PHP condition and configure it to check against a php snippet.
$condition = $this->manager
->createInstance('php')
->setConfig('php', '<?php return TRUE; ?>');
$this
->assertTrue($condition
->execute(), 'PHP condition passes as expected.');
// Check for the proper summary.
$this
->assertEqual($condition
->summary(), 'When the given PHP evaluates as TRUE.');
// Set the PHP snippet to return FALSE.
$condition
->setConfig('php', '<?php return FALSE; ?>');
$this
->assertFalse($condition
->execute(), 'PHP condition fails as expected.');
// Negate the condition.
$condition
->setConfig('negate', TRUE);
// Check for the proper summary.
$this
->assertEqual($condition
->summary(), 'When the given PHP evaluates as FALSE.');
// Reverse the negation.
$condition
->setConfig('negate', FALSE);
// Set and empty snippet.
$condition
->setConfig('php', FALSE);
// Check for the proper summary.
$this
->assertEqual($condition
->summary(), 'No PHP code has been provided.');
}