mocks.js
function(type, rel) {
			var objDesc = sforce.db.schema[type];
			for(var i = 0; i < objDesc.childRelationships.length; i++)
				if(objDesc.childRelationships[i].relationshipName === rel)
					return;
			throw 'No child relationship exists by the name: ' + rel + 'in the type: ' + type;
		}
function(type, rel) {
			var objDesc = sforce.db.schema[type];
			for(var i = 0; i < objDesc.childRelationships.length; i++)
				if(objDesc.childRelationships[i].relationshipName === rel)
					return;
			throw 'No child relationship exists by the name: ' + rel + 'in the type: ' + type;
		}
Validates a relationship name against a type in the schema