コード例 #1
0
        public void NftTransfer()
        {
            var owner = KeyPair.Generate();

            var simulator = new ChainSimulator(owner, 1234);
            var nexus     = simulator.Nexus;

            var chain = nexus.RootChain;

            var nftKey    = KeyPair.Generate();
            var nftSymbol = "COOL";
            var nftName   = "CoolToken";

            var sender   = KeyPair.Generate();
            var receiver = KeyPair.Generate();

            // Send some SOUL to the test user (required for gas used in "transfer" transaction)
            simulator.BeginBlock();
            simulator.GenerateTransfer(owner, sender.Address, chain, Nexus.FuelTokenSymbol, UnitConversion.ToBigInteger(1, Nexus.FuelTokenDecimals));
            simulator.EndBlock();

            // Create the token CoolToken as an NFT
            simulator.BeginBlock();
            simulator.GenerateToken(owner, nftSymbol, nftName, 0, 0, TokenFlags.Transferable);
            simulator.EndBlock();

            var token     = simulator.Nexus.GetTokenInfo(nftSymbol);
            var tokenData = new byte[] { 0x1, 0x3, 0x3, 0x7 };

            Assert.IsTrue(nexus.TokenExists(nftSymbol), "Can't find the token symbol");

            // verify nft presence on the sender pre-mint
            var ownerships     = new OwnershipSheet(nftSymbol);
            var ownedTokenList = ownerships.Get(chain.Storage, sender.Address);

            Assert.IsTrue(!ownedTokenList.Any(), "How does the sender already have a CoolToken?");

            // Mint a new CoolToken directly on the sender
            simulator.BeginBlock();
            simulator.GenerateNft(owner, sender.Address, nftSymbol, tokenData, new byte[0]);
            simulator.EndBlock();

            // verify nft presence on the sender post-mint
            ownedTokenList = ownerships.Get(chain.Storage, sender.Address);
            Assert.IsTrue(ownedTokenList.Count() == 1, "How does the sender not have one now?");

            //verify that the present nft is the same we actually tried to create
            var tokenId = ownedTokenList.ElementAt(0);
            var nft     = nexus.GetNFT(nftSymbol, tokenId);

            Assert.IsTrue(nft.ROM.SequenceEqual(tokenData) || nft.RAM.SequenceEqual(tokenData),
                          "And why is this NFT different than expected? Not the same data");

            // verify nft presence on the receiver pre-transfer
            ownedTokenList = ownerships.Get(chain.Storage, receiver.Address);
            Assert.IsTrue(!ownedTokenList.Any(), "How does the receiver already have a CoolToken?");

            // transfer that nft from sender to receiver
            simulator.BeginBlock();
            var txA = simulator.GenerateNftTransfer(sender, receiver.Address, chain, nftSymbol, tokenId);

            simulator.EndBlock();

            // verify nft presence on the receiver post-transfer
            ownedTokenList = ownerships.Get(chain.Storage, receiver.Address);
            Assert.IsTrue(ownedTokenList.Count() == 1, "How does the receiver not have one now?");

            //verify that the transfered nft is the same we actually tried to create
            tokenId = ownedTokenList.ElementAt(0);
            nft     = nexus.GetNFT(nftSymbol, tokenId);
            Assert.IsTrue(nft.ROM.SequenceEqual(tokenData) || nft.RAM.SequenceEqual(tokenData),
                          "And why is this NFT different than expected? Not the same data");
        }