function testShouldAddIllustrationID_WithPrefixingZeros()
{
$product = $this->newProduct(1);
$product = new Elite_Vafdiagram_Model_Catalog_Product($product);
$product->addServiceCode('0123', array('category1' => 1, 'illustration_id' => '001234'));
$product->addServiceCode(456, array('category1' => 2, 'illustration_id' => 4567));
$actual = $product->illustrationID(array('category1' => 1, 'service_code' => '0123'));
$this->assertSame('001234', $actual, 'should add illustration ID (with prefixing zeros)');
}
