Reto gelopfalcon#2 Validaciones: id > 0, name.length > 2 chars y no v…

…acío

PokemonFactory.sol

@@ -7,33 +7,46 @@ contract PokemonFactory {
     event eventNewPokemon(Pokemon pokemon);
 
     struct Pokemon {
-      uint id;
-      string name;
+        uint id;
+        string name;
     }
 
     Pokemon[] private pokemons;
 
     mapping (uint => address) public pokemonToOwner;
     mapping (address => uint) ownerPokemonCount;
 
-     function createPokemon (string memory _name, uint _id) public {
+    function createPokemon (string memory _name, uint _id) public {
+        require(_id > 0, "id must be greater than 0.");
+        require(bytes(_name).length > 2, "name must be greater than 2 characters length.");
+        require(!isEmpty(_name), "name must not be empty.");
         Pokemon memory pokemon = Pokemon(_id, _name);
         pokemons.push(pokemon);
         pokemonToOwner[_id] = msg.sender;
         ownerPokemonCount[msg.sender]++;
         emit eventNewPokemon(pokemon);
     }
 
+    function isEmpty(string memory str) private pure returns (bool) {
+        bytes memory b = bytes(str);
+        for (uint i; i < b.length; i++) {
+            if (b[i] != 0x20) {
+                return false;
+            }
+        }
+        return true;
+    }
+
     function getAllPokemons() public view returns (Pokemon[] memory) {
-      return pokemons;
+        return pokemons;
     }
 
 
     function getResult() public pure returns(uint product, uint sum){
-      uint a = 1; 
-      uint b = 2;
-      product = a * b;
-      sum = a + b; 
-   }
+        uint a = 1; 
+        uint b = 2;
+        product = a * b;
+        sum = a + b; 
+    }
 
 }