/**
  * @dataProvider exceptionProducingUnitsProvider
  * @covers \PhpUnitsOfMeasure\AbstractPhysicalQuantity::addUnit
  * @expectedException \PhpUnitsOfMeasure\Exception\DuplicateUnitNameOrAlias
  */
 public function testAddUnitFailsOnNameCollision($unitName, $unitAliases)
 {
     $newUnit = $this->getTestUnitOfMeasure($unitName, $unitAliases);
     Wonkicity::addUnit($newUnit);
 }