/**
* @test
* @dataProvider provideValidParams
* @return null
*/
public function addGetExistConfigItem($key, $value)
{
$this->assertEquals(array(), ConfigRegistry::getAll());
$this->assertFalse(ConfigRegistry::exists($key));
$this->assertNull(ConfigRegistry::add($key, $value));
$this->assertTrue(ConfigRegistry::exists($key));
$this->assertEquals($value, ConfigRegistry::get($key));
}
