public function testUpperCamelToLowerCamel()
{
$this->assertEquals('d', Convert::upperCamelToLowerCamel('D'), 'Single character');
$this->assertEquals('id', Convert::upperCamelToLowerCamel('ID'), 'Multi leading upper without trailing lower');
$this->assertEquals('id', Convert::upperCamelToLowerCamel('Id'), 'Single leading upper with trailing lower');
$this->assertEquals('idField', Convert::upperCamelToLowerCamel('IdField'), 'Single leading upper with trailing upper camel');
$this->assertEquals('idField', Convert::upperCamelToLowerCamel('IDField'), 'Multi leading upper with trailing upper camel');
$this->assertEquals('iDField', Convert::upperCamelToLowerCamel('iDField'), 'Single leading lower with trailing upper camel');
$this->assertEquals('_IDField', Convert::upperCamelToLowerCamel('_IDField'), 'Non-alpha leading with trailing upper camel');
}