git.delta.rocks / unique-network / refs/commits / e8c60d0676d5

373    await confirmSponsorshipExpectFailure(collectionId, '//Bob');373    await confirmSponsorshipExpectFailure(collectionId, '//Bob');
374  });374  });
375
376  it('(!negative test!) Transfer fees are not paid by the sponsor if the transfer failed', async () => {
377    const collectionId = await createCollectionExpectSuccess();
378    await setCollectionSponsorExpectSuccess(collectionId, bob.address);
379    await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
380
381    await usingApi(async (api) => {
382      // Find unused address
383      const ownerZeroBalance = await findUnusedAddress(api);
384
385      // Find another unused address
386      const senderZeroBalance = await findUnusedAddress(api);
387
388      // Mint token for an unused address
389      const itemId = await createItemExpectSuccess(alice, collectionId, 'NFT', ownerZeroBalance.address);
390
391      const sponsorBalanceBeforeTx = (await api.query.system.account(bob.address)).data.free.toBigInt();
392
393      // Try to transfer this token from an unsponsored unused adress to Alice
394      const zeroToAlice = api.tx.unique.transfer(normalizeAccountId(alice.address), collectionId, itemId, 0);
395      await expect(submitTransactionExpectFailAsync(senderZeroBalance, zeroToAlice)).to.be.rejected;
396
397      const sponsorBalanceAfterTx = (await api.query.system.account(bob.address)).data.free.toBigInt();
398
399      expect(sponsorBalanceAfterTx).to.equal(sponsorBalanceBeforeTx);
400    });
401  });
375});402});
376403