/**
* Tests checking if attribute has to be replaced on persistence
*
* @return void
*/
public function testIsReplaced()
{
$test = new NodeAttribute('test');
$test->add(array('v1', 'v2', 'v3', 'v4'));
$test->snapshot();
$test->add('v5');
$test->remove('v3');
$test->remove('v2');
$test->add('v3');
$this->assertEquals(array('v5'), $test->getDiffAdditions(), 'Tracking works as usual');
$this->assertEquals(array('v2'), $test->getDiffDeletions(), 'Tracking works as usual');
$this->assertEquals(array('v3'), $test->getDiffReplacements(), 'Tracking works as usual');
$this->assertFalse($test->isReplaced(), 'We have just been adding & removing values');
$test->set(array('v2', 'v6'));
$this->assertEquals(array(), array_merge($test->getDiffAdditions(), $test->getDiffDeletions(), $test->getDiffReplacements()), 'Diff got cleared');
$this->assertTrue($test->isReplaced(), 'Object is marked for a complete replacement');
$test->add('v5');
$test->remove('v2');
$this->assertEquals(array(), array_merge($test->getDiffAdditions(), $test->getDiffDeletions(), $test->getDiffReplacements()), 'Diff not updated');
$this->assertTrue($test->isReplaced(), 'Object is still marked for a replacement');
$test->snapshot();
$test->add('v2');
$this->assertEquals(array('v2'), $test->getDiffAdditions(), 'Diff tracked again');
$this->assertFalse($test->isReplaced(), 'We are no more in a replacement case');
}
