/**
* @test
*/
public function shouldAllowEraseValue()
{
$expectedValue = 'cardNumber';
$sensitiveValue = new SensitiveValue($expectedValue);
//guard
$this->assertEquals($expectedValue, $sensitiveValue->get());
$sensitiveValue->erase();
$this->assertNull($sensitiveValue->get());
$this->assertAttributeEquals(null, 'value', $sensitiveValue);
}
