public function testMergeIfEmpty()
{
$data = array('id' => 1, 'name' => 'first Name', 'empty' => '', 'null' => null, 'true' => true, 'false' => false, 'zero' => 0);
$defaults = array('new' => 'sss', 'id' => 'ttt', 'empty' => 'uuu', 'null' => 'vvv', 'name' => 'wwww', 'true' => 'xxx', 'false' => 'yyy', 'zero' => 'zzz');
$expect = array('new' => 'sss', 'id' => 1, 'name' => 'first Name', 'empty' => 'uuu', 'null' => 'vvv', 'true' => true, 'false' => 'yyy', 'zero' => 0);
$this->assertEquals($expect, Re::mergeIfEmpty($defaults, $data));
// try with nested arrays, default un-nested == simple merge, no overwrites
$data = array('User' => $data);
$data['Alt'] = array('id' => 5, 'zero' => 0);
$data['User']['Nest'] = array('id' => 5, 'zero' => 0);
$expect = $defaults;
$expect['Alt'] = $data['Alt'];
$expect['User'] = $data['User'];
$this->assertEquals($expect, Re::mergeIfEmpty($defaults, $data));
// try with nested defaults/data
$defaults = array('User' => $defaults);
$expect = array('User' => array('new' => 'sss', 'id' => 1, 'name' => 'first Name', 'empty' => 'uuu', 'null' => 'vvv', 'true' => true, 'false' => 'yyy', 'zero' => 0, 'Nest' => $data['User']['Nest']), 'Alt' => $data['Alt']);
$this->assertEquals($expect, Re::mergeIfEmpty($defaults, $data));
}
