git.delta.rocks / unique-network / refs/commits / 66f33e369405

--- a/tests/src/addToContractAllowList.test.ts
+++ b/tests/src/addToContractAllowList.test.ts
@@ -32,7 +32,7 @@
   it('Add an address to a contract allow list', async () => {
     await usingApi(async (api, privateKeyWrapper) => {
       const bob = privateKeyWrapper('//Bob');
-      const [contract, deployer] = await deployFlipper(api);
+      const [contract, deployer] = await deployFlipper(api, privateKeyWrapper);
 
       const allowListedBefore = (await api.query.unique.contractAllowList(contract.address, bob.address)).toJSON();
       const addTx = api.tx.unique.addToContractAllowList(contract.address, bob.address);
@@ -48,7 +48,7 @@
   it('Adding same address to allow list repeatedly should not produce errors', async () => {
     await usingApi(async (api, privateKeyWrapper) => {
       const bob = privateKeyWrapper('//Bob');
-      const [contract, deployer] = await deployFlipper(api);
+      const [contract, deployer] = await deployFlipper(api, privateKeyWrapper);
 
       const allowListedBefore = (await api.query.unique.contractAllowList(contract.address, bob.address)).toJSON();
       const addTx = api.tx.unique.addToContractAllowList(contract.address, bob.address);
@@ -87,7 +87,7 @@
   it('Add to a contract allow list using a non-owner address', async () => {
     await usingApi(async (api, privateKeyWrapper) => {
       const bob = privateKeyWrapper('//Bob');
-      const [contract] = await deployFlipper(api);
+      const [contract] = await deployFlipper(api, privateKeyWrapper);
 
       const allowListedBefore = (await api.query.unique.contractAllowList(contract.address, bob.address)).toJSON();
       const addTx = api.tx.unique.addToContractAllowList(contract.address, bob.address);

--- a/tests/src/burnItem.test.ts
+++ b/tests/src/burnItem.test.ts
@@ -15,7 +15,6 @@
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
 import {default as usingApi, submitTransactionAsync, submitTransactionExpectFailAsync} from './substrate/substrate-api';
-import {Keyring} from '@polkadot/api';
 import {IKeyringPair} from '@polkadot/types/types';
 import {
   createCollectionExpectSuccess,
@@ -37,10 +36,9 @@
 
 describe('integration test: ext. burnItem():', () => {
   before(async () => {
-    await usingApi(async () => {
-      const keyring = new Keyring({type: 'sr25519'});
-      alice = keyring.addFromUri('//Alice');
-      bob = keyring.addFromUri('//Bob');
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
     });
   });
 
@@ -142,10 +140,9 @@
 
 describe('integration test: ext. burnItem() with admin permissions:', () => {
   before(async () => {
-    await usingApi(async () => {
-      const keyring = new Keyring({type: 'sr25519'});
-      alice = keyring.addFromUri('//Alice');
-      bob = keyring.addFromUri('//Bob');
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
     });
   });
 
@@ -209,10 +206,9 @@
 
 describe('Negative integration test: ext. burnItem():', () => {
   before(async () => {
-    await usingApi(async () => {
-      const keyring = new Keyring({type: 'sr25519'});
-      alice = keyring.addFromUri('//Alice');
-      bob = keyring.addFromUri('//Bob');
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
     });
   });
 

--- a/tests/src/confirmSponsorship.test.ts
+++ b/tests/src/confirmSponsorship.test.ts
@@ -34,7 +34,6 @@
   getCreatedCollectionCount,
   UNIQUE,
 } from './util/helpers';
-import {Keyring} from '@polkadot/api';
 import {IKeyringPair} from '@polkadot/types/types';
 
 chai.use(chaiAsPromised);
@@ -47,11 +46,10 @@
 describe('integration test: ext. confirmSponsorship():', () => {
 
   before(async () => {
-    await usingApi(async () => {
-      const keyring = new Keyring({type: 'sr25519'});
-      alice = keyring.addFromUri('//Alice');
-      bob = keyring.addFromUri('//Bob');
-      charlie = keyring.addFromUri('//Charlie');
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
+      charlie = privateKeyWrapper('//Charlie');
     });
   });
 
@@ -78,11 +76,11 @@
     await setCollectionSponsorExpectSuccess(collectionId, bob.address);
     await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
 
-    await usingApi(async (api) => {
+    await usingApi(async (api, privateKeyWrapper) => {
       const sponsorBalanceBefore = (await api.query.system.account(bob.address)).data.free.toBigInt();
 
       // Find unused address
-      const zeroBalance = await findUnusedAddress(api);
+      const zeroBalance = await findUnusedAddress(api, privateKeyWrapper);
 
       // Mint token for unused address
       const itemId = await createItemExpectSuccess(alice, collectionId, 'NFT', zeroBalance.address);
@@ -105,11 +103,11 @@
     await setCollectionSponsorExpectSuccess(collectionId, bob.address);
     await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
 
-    await usingApi(async (api) => {
+    await usingApi(async (api, privateKeyWrapper) => {
       const sponsorBalanceBefore = (await api.query.system.account(bob.address)).data.free.toBigInt();
 
       // Find unused address
-      const zeroBalance = await findUnusedAddress(api);
+      const zeroBalance = await findUnusedAddress(api, privateKeyWrapper);
 
       // Mint token for unused address
       const itemId = await createItemExpectSuccess(alice, collectionId, 'Fungible', zeroBalance.address);
@@ -131,11 +129,11 @@
     await setCollectionSponsorExpectSuccess(collectionId, bob.address);
     await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
 
-    await usingApi(async (api) => {
+    await usingApi(async (api, privateKeyWrapper) => {
       const sponsorBalanceBefore = (await api.query.system.account(bob.address)).data.free.toBigInt();
 
       // Find unused address
-      const zeroBalance = await findUnusedAddress(api);
+      const zeroBalance = await findUnusedAddress(api, privateKeyWrapper);
 
       // Mint token for unused address
       const itemId = await createItemExpectSuccess(alice, collectionId, 'ReFungible', zeroBalance.address);
@@ -164,11 +162,11 @@
     await enablePublicMintingExpectSuccess(alice, collectionId);
 
     // Create Item
-    await usingApi(async (api) => {
+    await usingApi(async (api, privateKeyWrapper) => {
       const sponsorBalanceBefore = (await api.query.system.account(bob.address)).data.free.toBigInt();
 
       // Find unused address
-      const zeroBalance = await findUnusedAddress(api);
+      const zeroBalance = await findUnusedAddress(api, privateKeyWrapper);
 
       // Add zeroBalance address to allow list
       await addToAllowListExpectSuccess(alice, collectionId, zeroBalance.address);
@@ -187,9 +185,9 @@
     await setCollectionSponsorExpectSuccess(collectionId, bob.address);
     await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
 
-    await usingApi(async (api) => {
+    await usingApi(async (api, privateKeyWrapper) => {
       // Find unused address
-      const zeroBalance = await findUnusedAddress(api);
+      const zeroBalance = await findUnusedAddress(api, privateKeyWrapper);
 
       // Mint token for alice
       const itemId = await createItemExpectSuccess(alice, collectionId, 'NFT', alice.address);
@@ -226,9 +224,9 @@
     await setCollectionSponsorExpectSuccess(collectionId, bob.address);
     await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
 
-    await usingApi(async (api) => {
+    await usingApi(async (api, privateKeyWrapper) => {
       // Find unused address
-      const zeroBalance = await findUnusedAddress(api);
+      const zeroBalance = await findUnusedAddress(api, privateKeyWrapper);
 
       // Mint token for unused address
       const itemId = await createItemExpectSuccess(alice, collectionId, 'Fungible', zeroBalance.address);
@@ -259,9 +257,9 @@
     await setCollectionSponsorExpectSuccess(collectionId, bob.address);
     await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
 
-    await usingApi(async (api) => {
+    await usingApi(async (api, privateKeyWrapper) => {
       // Find unused address
-      const zeroBalance = await findUnusedAddress(api);
+      const zeroBalance = await findUnusedAddress(api, privateKeyWrapper);
 
       // Mint token for alice
       const itemId = await createItemExpectSuccess(alice, collectionId, 'ReFungible', zeroBalance.address);
@@ -299,9 +297,9 @@
     // Enable public minting
     await enablePublicMintingExpectSuccess(alice, collectionId);
 
-    await usingApi(async (api) => {
+    await usingApi(async (api, privateKeyWrapper) => {
       // Find unused address
-      const zeroBalance = await findUnusedAddress(api);
+      const zeroBalance = await findUnusedAddress(api, privateKeyWrapper);
 
       // Add zeroBalance address to allow list
       await addToAllowListExpectSuccess(alice, collectionId, zeroBalance.address);
@@ -331,11 +329,10 @@
 
 describe('(!negative test!) integration test: ext. confirmSponsorship():', () => {
   before(async () => {
-    await usingApi(async () => {
-      const keyring = new Keyring({type: 'sr25519'});
-      alice = keyring.addFromUri('//Alice');
-      bob = keyring.addFromUri('//Bob');
-      charlie = keyring.addFromUri('//Charlie');
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
+      charlie = privateKeyWrapper('//Charlie');
     });
   });
 
@@ -390,12 +387,12 @@
     await setCollectionSponsorExpectSuccess(collectionId, bob.address);
     await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
 
-    await usingApi(async (api) => {
+    await usingApi(async (api, privateKeyWrapper) => {
       // Find unused address
-      const ownerZeroBalance = await findUnusedAddress(api);
+      const ownerZeroBalance = await findUnusedAddress(api, privateKeyWrapper);
 
       // Find another unused address
-      const senderZeroBalance = await findUnusedAddress(api);
+      const senderZeroBalance = await findUnusedAddress(api, privateKeyWrapper);
 
       // Mint token for an unused address
       const itemId = await createItemExpectSuccess(alice, collectionId, 'NFT', ownerZeroBalance.address);

--- a/tests/src/contracts.test.ts
+++ b/tests/src/contracts.test.ts
@@ -50,7 +50,7 @@
 describe.skip('Contracts', () => {
   it('Can deploy smart contract Flipper, instantiate it and call it\'s get and flip messages.', async () => {
     await usingApi(async (api, privateKeyWrapper) => {
-      const [contract, deployer] = await deployFlipper(api);
+      const [contract, deployer] = await deployFlipper(api, privateKeyWrapper);
       const initialGetResponse = await getFlipValue(contract, deployer);
 
       const bob = privateKeyWrapper('//Bob');
@@ -82,7 +82,7 @@
       // Prep work
       const collectionId = await createCollectionExpectSuccess();
       const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT');
-      const [contract] = await deployTransferContract(api);
+      const [contract] = await deployTransferContract(api, privateKeyWrapper);
       const changeAdminTx = api.tx.unique.addCollectionAdmin(collectionId, contract.address);
       await submitTransactionAsync(alice, changeAdminTx);
 
@@ -104,7 +104,7 @@
       const bob = privateKeyWrapper('//Bob');
 
       const collectionId = await createCollectionExpectSuccess();
-      const [contract] = await deployTransferContract(api);
+      const [contract] = await deployTransferContract(api, privateKeyWrapper);
       await enablePublicMintingExpectSuccess(alice, collectionId);
       await enableAllowListExpectSuccess(alice, collectionId);
       await addToAllowListExpectSuccess(alice, collectionId, contract.address);
@@ -131,7 +131,7 @@
       const bob = privateKeyWrapper('//Bob');
 
       const collectionId = await createCollectionExpectSuccess();
-      const [contract] = await deployTransferContract(api);
+      const [contract] = await deployTransferContract(api, privateKeyWrapper);
       await enablePublicMintingExpectSuccess(alice, collectionId);
       await enableAllowListExpectSuccess(alice, collectionId);
       await addToAllowListExpectSuccess(alice, collectionId, contract.address);
@@ -173,7 +173,7 @@
       const charlie = privateKeyWrapper('//Charlie');
 
       const collectionId = await createCollectionExpectSuccess();
-      const [contract] = await deployTransferContract(api);
+      const [contract] = await deployTransferContract(api, privateKeyWrapper);
       const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', contract.address.toString());
 
       const transferTx = contract.tx.approve(value, gasLimit, bob.address, collectionId, tokenId, 1);
@@ -192,7 +192,7 @@
       const charlie = privateKeyWrapper('//Charlie');
 
       const collectionId = await createCollectionExpectSuccess();
-      const [contract] = await deployTransferContract(api);
+      const [contract] = await deployTransferContract(api, privateKeyWrapper);
       const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', bob.address);
       await approveExpectSuccess(collectionId, tokenId, bob, contract.address.toString(), 1);
 
@@ -212,7 +212,7 @@
       const bob = privateKeyWrapper('//Bob');
 
       const collectionId = await createCollectionExpectSuccess();
-      const [contract] = await deployTransferContract(api);
+      const [contract] = await deployTransferContract(api, privateKeyWrapper);
       const changeAdminTx = api.tx.unique.addCollectionAdmin(collectionId, contract.address);
       await submitTransactionAsync(alice, changeAdminTx);
 

--- a/tests/src/createItem.test.ts
+++ b/tests/src/createItem.test.ts
@@ -16,7 +16,6 @@
 
 import {default as usingApi} from './substrate/substrate-api';
 import chai from 'chai';
-import {Keyring} from '@polkadot/api';
 import {IKeyringPair} from '@polkadot/types/types';
 import {
   createCollectionExpectSuccess,
@@ -33,10 +32,9 @@
 
 describe('integration test: ext. ():', () => {
   before(async () => {
-    await usingApi(async () => {
-      const keyring = new Keyring({type: 'sr25519'});
-      alice = keyring.addFromUri('//Alice');
-      bob = keyring.addFromUri('//Bob');
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
     });
   });
 
@@ -101,10 +99,9 @@
 
 describe('Negative integration test: ext. createItem():', () => {
   before(async () => {
-    await usingApi(async () => {
-      const keyring = new Keyring({type: 'sr25519'});
-      alice = keyring.addFromUri('//Alice');
-      bob = keyring.addFromUri('//Bob');
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
     });
   });
 

--- a/tests/src/creditFeesToTreasury.test.ts
+++ b/tests/src/creditFeesToTreasury.test.ts
@@ -18,7 +18,6 @@
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
 import {default as usingApi, submitTransactionAsync, submitTransactionExpectFailAsync} from './substrate/substrate-api';
-import {alicesPublicKey, bobsPublicKey} from './accounts';
 import {IKeyringPair} from '@polkadot/types/types';
 import {
   createCollectionExpectSuccess,
@@ -71,17 +70,16 @@
   });
 
   it('Total issuance does not change', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
+    await usingApi(async (api) => {
       await skipInflationBlock(api);
       await waitNewBlocks(api, 1);
 
       const totalBefore = (await api.query.balances.totalIssuance()).toBigInt();
 
-      const alicePrivateKey = privateKeyWrapper('//Alice');
       const amount = 1n;
-      const transfer = api.tx.balances.transfer(bobsPublicKey, amount);
+      const transfer = api.tx.balances.transfer(bob.address, amount);
 
-      const result = getGenericResult(await submitTransactionAsync(alicePrivateKey, transfer));
+      const result = getGenericResult(await submitTransactionAsync(alice, transfer));
 
       const totalAfter = (await api.query.balances.totalIssuance()).toBigInt();
 
@@ -91,20 +89,19 @@
   });
 
   it('Sender balance decreased by fee+sent amount, Treasury balance increased by fee', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
+    await usingApi(async (api) => {
       await skipInflationBlock(api);
       await waitNewBlocks(api, 1);
 
-      const alicePrivateKey = privateKeyWrapper('//Alice');
       const treasuryBalanceBefore: bigint = (await api.query.system.account(TREASURY)).data.free.toBigInt();
-      const aliceBalanceBefore: bigint = (await api.query.system.account(alicesPublicKey)).data.free.toBigInt();
+      const aliceBalanceBefore: bigint = (await api.query.system.account(alice.address)).data.free.toBigInt();
 
       const amount = 1n;
-      const transfer = api.tx.balances.transfer(bobsPublicKey, amount);
-      const result = getGenericResult(await submitTransactionAsync(alicePrivateKey, transfer));
+      const transfer = api.tx.balances.transfer(bob.address, amount);
+      const result = getGenericResult(await submitTransactionAsync(alice, transfer));
 
       const treasuryBalanceAfter: bigint = (await api.query.system.account(TREASURY)).data.free.toBigInt();
-      const aliceBalanceAfter: bigint = (await api.query.system.account(alicesPublicKey)).data.free.toBigInt();
+      const aliceBalanceAfter: bigint = (await api.query.system.account(alice.address)).data.free.toBigInt();
       const fee = aliceBalanceBefore - aliceBalanceAfter - amount;
       const treasuryIncrease = treasuryBalanceAfter - treasuryBalanceBefore;
 
@@ -114,19 +111,18 @@
   });
 
   it('Treasury balance increased by failed tx fee', async () => {
-    await usingApi(async (api, privateKeyWrapper) => {
+    await usingApi(async (api) => {
       //await skipInflationBlock(api);
       await waitNewBlocks(api, 1);
 
-      const bobPrivateKey = privateKeyWrapper('//Bob');
       const treasuryBalanceBefore = (await api.query.system.account(TREASURY)).data.free.toBigInt();
-      const bobBalanceBefore = (await api.query.system.account(bobsPublicKey)).data.free.toBigInt();
+      const bobBalanceBefore = (await api.query.system.account(bob.address)).data.free.toBigInt();
 
-      const badTx = api.tx.balances.setBalance(alicesPublicKey, 0, 0);
-      await expect(submitTransactionExpectFailAsync(bobPrivateKey, badTx)).to.be.rejected;
+      const badTx = api.tx.balances.setBalance(alice.address, 0, 0);
+      await expect(submitTransactionExpectFailAsync(bob, badTx)).to.be.rejected;
 
       const treasuryBalanceAfter = (await api.query.system.account(TREASURY)).data.free.toBigInt();
-      const bobBalanceAfter = (await api.query.system.account(bobsPublicKey)).data.free.toBigInt();
+      const bobBalanceAfter = (await api.query.system.account(bob.address)).data.free.toBigInt();
       const fee = bobBalanceBefore - bobBalanceAfter;
       const treasuryIncrease = treasuryBalanceAfter - treasuryBalanceBefore;
 
@@ -140,12 +136,12 @@
       await waitNewBlocks(api, 1);
 
       const treasuryBalanceBefore = (await api.query.system.account(TREASURY)).data.free.toBigInt();
-      const aliceBalanceBefore = (await api.query.system.account(alicesPublicKey)).data.free.toBigInt();
+      const aliceBalanceBefore = (await api.query.system.account(alice.address)).data.free.toBigInt();
 
       await createCollectionExpectSuccess();
 
       const treasuryBalanceAfter = (await api.query.system.account(TREASURY)).data.free.toBigInt();
-      const aliceBalanceAfter = (await api.query.system.account(alicesPublicKey)).data.free.toBigInt();
+      const aliceBalanceAfter = (await api.query.system.account(alice.address)).data.free.toBigInt();
       const fee = aliceBalanceBefore - aliceBalanceAfter;
       const treasuryIncrease = treasuryBalanceAfter - treasuryBalanceBefore;
 
@@ -158,11 +154,11 @@
       await skipInflationBlock(api);
       await waitNewBlocks(api, 1);
 
-      const aliceBalanceBefore: bigint = (await api.query.system.account(alicesPublicKey)).data.free.toBigInt();
+      const aliceBalanceBefore: bigint = (await api.query.system.account(alice.address)).data.free.toBigInt();
 
       await createCollectionExpectSuccess();
 
-      const aliceBalanceAfter: bigint = (await api.query.system.account(alicesPublicKey)).data.free.toBigInt();
+      const aliceBalanceAfter: bigint = (await api.query.system.account(alice.address)).data.free.toBigInt();
       const fee = aliceBalanceBefore - aliceBalanceAfter;
 
       expect(fee / UNIQUE < BigInt(Math.ceil(saneMaximumFee + createCollectionDeposit))).to.be.true;
@@ -178,9 +174,9 @@
       const collectionId = await createCollectionExpectSuccess();
       const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT');
 
-      const aliceBalanceBefore: bigint = (await api.query.system.account(alicesPublicKey)).data.free.toBigInt();
+      const aliceBalanceBefore: bigint = (await api.query.system.account(alice.address)).data.free.toBigInt();
       await transferExpectSuccess(collectionId, tokenId, alice, bob, 1, 'NFT');
-      const aliceBalanceAfter: bigint = (await api.query.system.account(alicesPublicKey)).data.free.toBigInt();
+      const aliceBalanceAfter: bigint = (await api.query.system.account(alice.address)).data.free.toBigInt();
 
       const fee = Number(aliceBalanceBefore - aliceBalanceAfter) / Number(UNIQUE);
       const expectedTransferFee = 0.1;

--- a/tests/src/enableContractSponsoring.test.ts
+++ b/tests/src/enableContractSponsoring.test.ts
@@ -31,10 +31,10 @@
 
 describe.skip('Integration Test enableContractSponsoring', () => {
   it('ensure tx fee is paid from endowment', async () => {
-    await usingApi(async (api) => {
-      const user = await findUnusedAddress(api);
+    await usingApi(async (api, privateKeyWrapper) => {
+      const user = await findUnusedAddress(api, privateKeyWrapper);
 
-      const [flipper, deployer] = await deployFlipper(api);
+      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
       await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
       await setContractSponsoringRateLimitExpectSuccess(deployer, flipper.address, 1);
       await toggleFlipValueExpectSuccess(user, flipper);
@@ -44,8 +44,8 @@
   });
 
   it('ensure it can be enabled twice', async () => {
-    await usingApi(async (api) => {
-      const [flipper, deployer] = await deployFlipper(api);
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
 
       await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
       await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
@@ -53,8 +53,8 @@
   });
 
   it('ensure it can be disabled twice', async () => {
-    await usingApi(async (api) => {
-      const [flipper, deployer] = await deployFlipper(api);
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
 
       await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
       await enableContractSponsoringExpectSuccess(deployer, flipper.address, false);
@@ -63,8 +63,8 @@
   });
 
   it('ensure it can be re-enabled', async () => {
-    await usingApi(async (api) => {
-      const [flipper, deployer] = await deployFlipper(api);
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
 
       await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
       await enableContractSponsoringExpectSuccess(deployer, flipper.address, false);
@@ -84,16 +84,16 @@
   });
 
   it('fails when called for non-contract address', async () => {
-    await usingApi(async (api) => {
-      const user = await findUnusedAddress(api);
+    await usingApi(async (api, privateKeyWrapper) => {
+      const user = await findUnusedAddress(api, privateKeyWrapper);
 
       await enableContractSponsoringExpectFailure(alice, user.address, true);
     });
   });
 
   it('fails when called by non-owning user', async () => {
-    await usingApi(async (api) => {
-      const [flipper] = await deployFlipper(api);
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [flipper] = await deployFlipper(api, privateKeyWrapper);
 
       await enableContractSponsoringExpectFailure(alice, flipper.address, true);
     });

--- a/tests/src/removeCollectionSponsor.test.ts
+++ b/tests/src/removeCollectionSponsor.test.ts
@@ -31,7 +31,6 @@
   addCollectionAdminExpectSuccess,
   getCreatedCollectionCount,
 } from './util/helpers';
-import {Keyring} from '@polkadot/api';
 import {IKeyringPair} from '@polkadot/types/types';
 
 chai.use(chaiAsPromised);
@@ -43,10 +42,9 @@
 describe('integration test: ext. removeCollectionSponsor():', () => {
 
   before(async () => {
-    await usingApi(async () => {
-      const keyring = new Keyring({type: 'sr25519'});
-      alice = keyring.addFromUri('//Alice');
-      bob = keyring.addFromUri('//Bob');
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
     });
   });
 
@@ -56,9 +54,9 @@
     await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
     await removeCollectionSponsorExpectSuccess(collectionId);
 
-    await usingApi(async (api) => {
+    await usingApi(async (api, privateKeyWrapper) => {
       // Find unused address
-      const zeroBalance = await findUnusedAddress(api);
+      const zeroBalance = await findUnusedAddress(api, privateKeyWrapper);
 
       // Mint token for unused address
       const itemId = await createItemExpectSuccess(alice, collectionId, 'NFT', zeroBalance.address);
@@ -99,10 +97,9 @@
 
 describe('(!negative test!) integration test: ext. removeCollectionSponsor():', () => {
   before(async () => {
-    await usingApi(async () => {
-      const keyring = new Keyring({type: 'sr25519'});
-      alice = keyring.addFromUri('//Alice');
-      bob = keyring.addFromUri('//Bob');
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
     });
   });
 

--- a/tests/src/removeFromContractAllowList.test.ts
+++ b/tests/src/removeFromContractAllowList.test.ts
@@ -30,8 +30,8 @@
   });
 
   it('user is no longer allowlisted after removal', async () => {
-    await usingApi(async (api) => {
-      const [flipper, deployer] = await deployFlipper(api);
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
 
       await addToContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
       await removeFromContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
@@ -41,8 +41,8 @@
   });
 
   it('user can\'t execute contract after removal', async () => {
-    await usingApi(async (api) => {
-      const [flipper, deployer] = await deployFlipper(api);
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
       await toggleContractAllowlistExpectSuccess(deployer, flipper.address.toString(), true);
 
       await addToContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
@@ -54,8 +54,8 @@
   });
 
   it('can be called twice', async () => {
-    await usingApi(async (api) => {
-      const [flipper, deployer] = await deployFlipper(api);
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
 
       await addToContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
       await removeFromContractAllowListExpectSuccess(deployer, flipper.address.toString(), bob.address);
@@ -82,8 +82,8 @@
   });
 
   it('fails when executed by non owner', async () => {
-    await usingApi(async (api) => {
-      const [flipper] = await deployFlipper(api);
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [flipper] = await deployFlipper(api, privateKeyWrapper);
 
       await removeFromContractAllowListExpectFailure(alice, flipper.address.toString(), bob.address);
     });

--- a/tests/src/rpc.load.ts
+++ b/tests/src/rpc.load.ts
@@ -54,9 +54,9 @@
   });
 }
 
-async function prepareDeployer(api: ApiPromise) {
+async function prepareDeployer(api: ApiPromise, privateKeyWrapper: ((account: string) => IKeyringPair)) {
   // Find unused address
-  const deployer = await findUnusedAddress(api);
+  const deployer = await findUnusedAddress(api, privateKeyWrapper);
 
   // Transfer balance to it
   const keyring = new Keyring({type: 'sr25519'});
@@ -68,11 +68,11 @@
   return deployer;
 }
 
-async function deployLoadTester(api: ApiPromise): Promise<[Contract, IKeyringPair]> {
+async function deployLoadTester(api: ApiPromise, privateKeyWrapper: ((account: string) => IKeyringPair)): Promise<[Contract, IKeyringPair]> {
   const metadata = JSON.parse(fs.readFileSync('./src/load_test_sc/metadata.json').toString('utf-8'));
   const abi = new Abi(metadata);
 
-  const deployer = await prepareDeployer(api);
+  const deployer = await prepareDeployer(api, privateKeyWrapper);
 
   const wasm = fs.readFileSync('./src/load_test_sc/loadtester.wasm');
 
@@ -123,7 +123,7 @@
     await usingApi(async (api, privateKeyWrapper) => {
 
       // Deploy smart contract
-      const [contract, deployer] = await deployLoadTester(api);
+      const [contract, deployer] = await deployLoadTester(api, privateKeyWrapper);
 
       // Fill smart contract up with data
       const bob = privateKeyWrapper('//Bob');

--- a/tests/src/scheduler.test.ts
+++ b/tests/src/scheduler.test.ts
@@ -116,9 +116,9 @@
   });
 
   it('Schedules and dispatches a transaction even if the caller has no funds at the time of the dispatch', async () => {
-    await usingApi(async (api) => {
+    await usingApi(async (api, privateKeyWrapper) => {
       // Find an empty, unused account
-      const zeroBalance = await findUnusedAddress(api);
+      const zeroBalance = await findUnusedAddress(api, privateKeyWrapper);
 
       const collectionId = await createCollectionExpectSuccess();
 
@@ -156,8 +156,8 @@
   it('Sponsor going bankrupt does not impact a scheduled transaction', async () => {
     const collectionId = await createCollectionExpectSuccess();
 
-    await usingApi(async (api) => {
-      const zeroBalance = await findUnusedAddress(api);
+    await usingApi(async (api, privateKeyWrapper) => {
+      const zeroBalance = await findUnusedAddress(api, privateKeyWrapper);
       const balanceTx = api.tx.balances.transfer(zeroBalance.address, 1n * UNIQUE);
       await submitTransactionAsync(alice, balanceTx);
 
@@ -186,8 +186,8 @@
     await setCollectionSponsorExpectSuccess(collectionId, bob.address);
     await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
 
-    await usingApi(async (api) => {
-      const zeroBalance = await findUnusedAddress(api);
+    await usingApi(async (api, privateKeyWrapper) => {
+      const zeroBalance = await findUnusedAddress(api, privateKeyWrapper);
 
       await enablePublicMintingExpectSuccess(alice, collectionId);
       await addToAllowListExpectSuccess(alice, collectionId, zeroBalance.address);

--- a/tests/src/setCollectionLimits.test.ts
+++ b/tests/src/setCollectionLimits.test.ts
@@ -15,7 +15,7 @@
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
 // https://unique-network.readthedocs.io/en/latest/jsapi.html#setchainlimits
-import {ApiPromise, Keyring} from '@polkadot/api';
+import {ApiPromise} from '@polkadot/api';
 import {IKeyringPair} from '@polkadot/types/types';
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
@@ -44,9 +44,8 @@
 describe('setCollectionLimits positive', () => {
   let tx;
   before(async () => {
-    await usingApi(async () => {
-      const keyring = new Keyring({type: 'sr25519'});
-      alice = keyring.addFromUri('//Alice');
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
       collectionIdForTesting = await createCollectionExpectSuccess({name: 'A', description: 'B', tokenPrefix: 'C', mode: {type: 'NFT'}});
     });
   });
@@ -121,10 +120,9 @@
 describe('setCollectionLimits negative', () => {
   let tx;
   before(async () => {
-    await usingApi(async () => {
-      const keyring = new Keyring({type: 'sr25519'});
-      alice = keyring.addFromUri('//Alice');
-      bob = keyring.addFromUri('//Bob');
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
       collectionIdForTesting = await createCollectionExpectSuccess({name: 'A', description: 'B', tokenPrefix: 'C', mode: {type: 'NFT'}});
     });
   });

--- a/tests/src/setCollectionSponsor.test.ts
+++ b/tests/src/setCollectionSponsor.test.ts
@@ -24,7 +24,6 @@
   addCollectionAdminExpectSuccess,
   getCreatedCollectionCount,
 } from './util/helpers';
-import {Keyring} from '@polkadot/api';
 import {IKeyringPair} from '@polkadot/types/types';
 
 chai.use(chaiAsPromised);
@@ -36,10 +35,10 @@
 describe('integration test: ext. setCollectionSponsor():', () => {
 
   before(async () => {
-    await usingApi(async () => {
-      const keyring = new Keyring({type: 'sr25519'});
-      alice = keyring.addFromUri('//Alice');
-      bob = keyring.addFromUri('//Bob');
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
+      charlie = privateKeyWrapper('//Charlie');
     });
   });
 
@@ -63,9 +62,6 @@
   });
   it('Replace collection sponsor', async () => {
     const collectionId = await createCollectionExpectSuccess();
-
-    const keyring = new Keyring({type: 'sr25519'});
-    const charlie = keyring.addFromUri('//Charlie');
     await setCollectionSponsorExpectSuccess(collectionId, bob.address);
     await setCollectionSponsorExpectSuccess(collectionId, charlie.address);
   });
@@ -73,11 +69,10 @@
 
 describe('(!negative test!) integration test: ext. setCollectionSponsor():', () => {
   before(async () => {
-    await usingApi(async () => {
-      const keyring = new Keyring({type: 'sr25519'});
-      alice = keyring.addFromUri('//Alice');
-      bob = keyring.addFromUri('//Bob');
-      charlie = keyring.addFromUri('//Charlie');
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
+      charlie = privateKeyWrapper('//Charlie');
     });
   });
 

--- a/tests/src/setContractSponsoringRateLimit.test.ts
+++ b/tests/src/setContractSponsoringRateLimit.test.ts
@@ -27,10 +27,10 @@
 
 describe.skip('Integration Test setContractSponsoringRateLimit', () => {
   it('ensure sponsored contract can\'t be called twice without pause for free', async () => {
-    await usingApi(async (api) => {
-      const user = await findUnusedAddress(api);
+    await usingApi(async (api, privateKeyWrapper) => {
+      const user = await findUnusedAddress(api, privateKeyWrapper);
 
-      const [flipper, deployer] = await deployFlipper(api);
+      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
       await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
       await setContractSponsoringRateLimitExpectSuccess(deployer, flipper.address, 10);
       await toggleFlipValueExpectSuccess(user, flipper);
@@ -39,10 +39,10 @@
   });
 
   it('ensure sponsored contract can be called twice with pause for free', async () => {
-    await usingApi(async (api) => {
-      const user = await findUnusedAddress(api);
+    await usingApi(async (api, privateKeyWrapper) => {
+      const user = await findUnusedAddress(api, privateKeyWrapper);
 
-      const [flipper, deployer] = await deployFlipper(api);
+      const [flipper, deployer] = await deployFlipper(api, privateKeyWrapper);
       await enableContractSponsoringExpectSuccess(deployer, flipper.address, true);
       await setContractSponsoringRateLimitExpectSuccess(deployer, flipper.address, 1);
       await toggleFlipValueExpectSuccess(user, flipper);
@@ -62,16 +62,16 @@
   });
 
   it('fails when called for non-contract address', async () => {
-    await usingApi(async (api) => {
-      const user = await findUnusedAddress(api);
+    await usingApi(async (api, privateKeyWrapper) => {
+      const user = await findUnusedAddress(api, privateKeyWrapper);
 
       await setContractSponsoringRateLimitExpectFailure(alice, user.address, 1);
     });
   });
 
   it('fails when called by non-owning user', async () => {
-    await usingApi(async (api) => {
-      const [flipper] = await deployFlipper(api);
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [flipper] = await deployFlipper(api, privateKeyWrapper);
 
       await setContractSponsoringRateLimitExpectFailure(alice, flipper.address, 1);
     });

--- a/tests/src/toggleContractAllowList.test.ts
+++ b/tests/src/toggleContractAllowList.test.ts
@@ -34,8 +34,8 @@
 describe.skip('Integration Test toggleContractAllowList', () => {
 
   it('Enable allow list contract mode', async () => {
-    await usingApi(async api => {
-      const [contract, deployer] = await deployFlipper(api);
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [contract, deployer] = await deployFlipper(api, privateKeyWrapper);
 
       const enabledBefore = (await api.query.unique.contractAllowListEnabled(contract.address)).toJSON();
       const enableAllowListTx = api.tx.unique.toggleContractAllowList(contract.address, true);
@@ -52,7 +52,7 @@
     await usingApi(async (api, privateKeyWrapper) => {
       const bob = privateKeyWrapper('//Bob');
 
-      const [contract, deployer] = await deployFlipper(api);
+      const [contract, deployer] = await deployFlipper(api, privateKeyWrapper);
 
       let flipValueBefore = await getFlipValue(contract, deployer);
       const flip = contract.tx.flip(value, gasLimit);
@@ -111,8 +111,8 @@
   });
 
   it('Enabling allow list repeatedly should not produce errors', async () => {
-    await usingApi(async api => {
-      const [contract, deployer] = await deployFlipper(api);
+    await usingApi(async (api, privateKeyWrapper) => {
+      const [contract, deployer] = await deployFlipper(api, privateKeyWrapper);
 
       const enabledBefore = (await api.query.unique.contractAllowListEnabled(contract.address)).toJSON();
       const enableAllowListTx = api.tx.unique.toggleContractAllowList(contract.address, true);
@@ -151,7 +151,7 @@
   it('Enable allow list using a non-owner address', async () => {
     await usingApi(async (api, privateKeyWrapper) => {
       const bob = privateKeyWrapper('//Bob');
-      const [contract] = await deployFlipper(api);
+      const [contract] = await deployFlipper(api, privateKeyWrapper);
 
       const enabledBefore = (await api.query.unique.contractAllowListEnabled(contract.address)).toJSON();
       const enableAllowListTx = api.tx.unique.toggleContractAllowList(contract.address, true);

--- a/tests/src/transfer.test.ts
+++ b/tests/src/transfer.test.ts
@@ -17,7 +17,6 @@
 import {ApiPromise} from '@polkadot/api';
 import {IKeyringPair} from '@polkadot/types/types';
 import {expect} from 'chai';
-import {alicesPublicKey, bobsPublicKey} from './accounts';
 import getBalance from './substrate/get-balance';
 import {default as usingApi, submitTransactionAsync} from './substrate/substrate-api';
 import {
@@ -47,19 +46,24 @@
 let charlie: IKeyringPair;
 
 describe('Integration Test Transfer(recipient, collection_id, item_id, value)', () => {
+  before(async () => {
+    await usingApi(async (api, privateKeyWrapper) => {
+      alice = privateKeyWrapper('//Alice');
+      bob = privateKeyWrapper('//Bob');
+    });
+  });
+  
   it('Balance transfers and check balance', async () => {
     await usingApi(async (api, privateKeyWrapper) => {
-      const [alicesBalanceBefore, bobsBalanceBefore] = await getBalance(api, [alicesPublicKey, bobsPublicKey]);
+      const [alicesBalanceBefore, bobsBalanceBefore] = await getBalance(api, [alice.address, bob.address]);
 
-      const alicePrivateKey = privateKeyWrapper('//Alice');
-
-      const transfer = api.tx.balances.transfer(bobsPublicKey, 1n);
-      const events = await submitTransactionAsync(alicePrivateKey, transfer);
+      const transfer = api.tx.balances.transfer(bob.address, 1n);
+      const events = await submitTransactionAsync(alice, transfer);
       const result = getCreateItemResult(events);
       // tslint:disable-next-line:no-unused-expression
       expect(result.success).to.be.true;
 
-      const [alicesBalanceAfter, bobsBalanceAfter] = await getBalance(api, [alicesPublicKey, bobsPublicKey]);
+      const [alicesBalanceAfter, bobsBalanceAfter] = await getBalance(api, [alice.address, bob.address]);
 
       // tslint:disable-next-line:no-unused-expression
       expect(alicesBalanceAfter < alicesBalanceBefore).to.be.true;
@@ -69,11 +73,11 @@
   });
 
   it('Inability to pay fees error message is correct', async () => {
-    await usingApi(async (api) => {
+    await usingApi(async (api, privateKeyWrapper) => {
       // Find unused address
-      const pk = await findUnusedAddress(api);
+      const pk = await findUnusedAddress(api, privateKeyWrapper);
 
-      const badTransfer = api.tx.balances.transfer(bobsPublicKey, 1n);
+      const badTransfer = api.tx.balances.transfer(bob.address, 1n);
       // const events = await submitTransactionAsync(pk, badTransfer);
       const badTransaction = async () => {
         const events = await submitTransactionAsync(pk, badTransfer);
@@ -87,8 +91,6 @@
 
   it('User can transfer owned token', async () => {
     await usingApi(async (api, privateKeyWrapper) => {
-      const alice = privateKeyWrapper('//Alice');
-      const bob = privateKeyWrapper('//Bob');
       // nft
       const nftCollectionId = await createCollectionExpectSuccess();
       const newNftTokenId = await createItemExpectSuccess(alice, nftCollectionId, 'NFT');
@@ -114,8 +116,6 @@
 
   it('Collection admin can transfer owned token', async () => {
     await usingApi(async (api, privateKeyWrapper) => {
-      const alice = privateKeyWrapper('//Alice');
-      const bob = privateKeyWrapper('//Bob');
       // nft
       const nftCollectionId = await createCollectionExpectSuccess();
       await addCollectionAdminExpectSuccess(alice, nftCollectionId, bob.address);
@@ -316,7 +316,6 @@
 describe('Transfers to self (potentially over substrate-evm boundary)', () => {
   itWeb3('Transfers to self. In case of same frontend', async ({api, privateKeyWrapper}) => {
     const collectionId = await createCollectionExpectSuccess({mode: {type: 'Fungible', decimalPoints: 0}});
-    const alice = privateKeyWrapper('//Alice');
     const aliceProxy = subToEth(alice.address);
     const tokenId = await createItemExpectSuccess(alice, collectionId, 'Fungible', {Substrate: alice.address});
     await transferExpectSuccess(collectionId, tokenId, alice, {Ethereum: aliceProxy}, 10, 'Fungible');
@@ -328,7 +327,6 @@
 
   itWeb3('Transfers to self. In case of substrate-evm boundary', async ({api, privateKeyWrapper}) => {
     const collectionId = await createCollectionExpectSuccess({mode: {type: 'Fungible', decimalPoints: 0}});
-    const alice = privateKeyWrapper('//Alice');
     const aliceProxy = subToEth(alice.address);
     const tokenId = await createItemExpectSuccess(alice, collectionId, 'Fungible', {Substrate: alice.address});
     const balanceAliceBefore = await getTokenBalance(api, collectionId, normalizeAccountId(alice), tokenId);
@@ -340,7 +338,6 @@
 
   itWeb3('Transfers to self. In case of inside substrate-evm', async ({api, privateKeyWrapper}) => {
     const collectionId = await createCollectionExpectSuccess({mode: {type: 'Fungible', decimalPoints: 0}});
-    const alice = privateKeyWrapper('//Alice');
     const tokenId = await createItemExpectSuccess(alice, collectionId, 'Fungible', {Substrate: alice.address});
     const balanceAliceBefore = await getTokenBalance(api, collectionId, normalizeAccountId(alice), tokenId);
     await transferExpectSuccess(collectionId, tokenId, alice, alice , 10, 'Fungible');
@@ -351,7 +348,6 @@
 
   itWeb3('Transfers to self. In case of inside substrate-evm when not enought "Fungibles"', async ({api, privateKeyWrapper}) => {
     const collectionId = await createCollectionExpectSuccess({mode: {type: 'Fungible', decimalPoints: 0}});
-    const alice = privateKeyWrapper('//Alice');
     const tokenId = await createItemExpectSuccess(alice, collectionId, 'Fungible', {Substrate: alice.address});
     const balanceAliceBefore = await getTokenBalance(api, collectionId, normalizeAccountId(alice), tokenId);
     await transferExpectFailure(collectionId, tokenId, alice, alice , 11);

--- a/tests/src/util/contracthelpers.ts
+++ b/tests/src/util/contracthelpers.ts
@@ -20,7 +20,7 @@
 import fs from 'fs';
 import {Abi, CodePromise, ContractPromise as Contract} from '@polkadot/api-contract';
 import {IKeyringPair} from '@polkadot/types/types';
-import {ApiPromise, Keyring} from '@polkadot/api';
+import {ApiPromise} from '@polkadot/api';
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
@@ -45,13 +45,12 @@
   });
 }
 
-async function prepareDeployer(api: ApiPromise) {
+async function prepareDeployer(api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair) {
   // Find unused address
-  const deployer = await findUnusedAddress(api);
+  const deployer = await findUnusedAddress(api, privateKeyWrapper);
 
   // Transfer balance to it
-  const keyring = new Keyring({type: 'sr25519'});
-  const alice = keyring.addFromUri('//Alice');
+  const alice = privateKeyWrapper('//Alice');
   const amount = BigInt(endowment) + 10n**15n;
   const tx = api.tx.balances.transfer(deployer.address, amount);
   await submitTransactionAsync(alice, tx);
@@ -59,11 +58,11 @@
   return deployer;
 }
 
-export async function deployFlipper(api: ApiPromise): Promise<[Contract, IKeyringPair]> {
+export async function deployFlipper(api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair): Promise<[Contract, IKeyringPair]> {
   const metadata = JSON.parse(fs.readFileSync('./src/flipper/metadata.json').toString('utf-8'));
   const abi = new Abi(metadata);
 
-  const deployer = await prepareDeployer(api);
+  const deployer = await prepareDeployer(api, privateKeyWrapper);
 
   const wasm = fs.readFileSync('./src/flipper/flipper.wasm');
 
@@ -99,11 +98,11 @@
   await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
 }
 
-export async function deployTransferContract(api: ApiPromise): Promise<[Contract, IKeyringPair]> {
+export async function deployTransferContract(api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair): Promise<[Contract, IKeyringPair]> {
   const metadata = JSON.parse(fs.readFileSync('./src/transfer_contract/metadata.json').toString('utf-8'));
   const abi = new Abi(metadata);
 
-  const deployer = await prepareDeployer(api);
+  const deployer = await prepareDeployer(api, privateKeyWrapper);
 
   const wasm = fs.readFileSync('./src/transfer_contract/nft_transfer.wasm');
 

--- a/tests/src/util/helpers.ts
+++ b/tests/src/util/helpers.ts
@@ -16,14 +16,13 @@
 
 import '../interfaces/augment-api-rpc';
 import '../interfaces/augment-api-query';
-import {ApiPromise, Keyring} from '@polkadot/api';
+import {ApiPromise} from '@polkadot/api';
 import type {AccountId, EventRecord, Event} from '@polkadot/types/interfaces';
 import {AnyTuple, IEvent, IKeyringPair} from '@polkadot/types/types';
 import {evmToAddress} from '@polkadot/util-crypto';
 import BN from 'bn.js';
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
-import {alicesPublicKey} from '../accounts';
 import {default as usingApi, executeTransaction, submitTransactionAsync, submitTransactionExpectFailAsync} from '../substrate/substrate-api';
 import {hexToStr, strToUTF16, utf16ToStr} from './util';
 import {UpDataStructsRpcCollection, UpDataStructsCreateItemData, UpDataStructsProperty} from '@polkadot/types/lookup';
@@ -40,7 +39,7 @@
 
 export function normalizeAccountId(input: string | AccountId | CrossAccountId | IKeyringPair): CrossAccountId {
   if (typeof input === 'string') {
-    if (input.length === 48 || input.length === 47) {
+    if (input.length >= 47) {
       return {Substrate: input};
     } else if (input.length === 42 && input.startsWith('0x')) {
       return {Ethereum: input.toLowerCase()};
@@ -363,7 +362,7 @@
     // tslint:disable-next-line:no-unused-expression
     expect(collection).to.be.not.null;
     expect(collectionCountAfter).to.be.equal(collectionCountBefore + 1, 'Error: NFT collection NOT created.');
-    expect(collection.owner.toString()).to.be.equal(toSubstrateAddress(alicesPublicKey));
+    expect(collection.owner.toString()).to.be.equal(toSubstrateAddress(alicePrivateKey));
     expect(utf16ToStr(collection.name.toJSON() as any)).to.be.equal(name);
     expect(utf16ToStr(collection.description.toJSON() as any)).to.be.equal(description);
     expect(hexToStr(collection.tokenPrefix.toJSON())).to.be.equal(tokenPrefix);
@@ -411,7 +410,7 @@
     // tslint:disable-next-line:no-unused-expression
     expect(collection).to.be.not.null;
     expect(collectionCountAfter).to.be.equal(collectionCountBefore + 1, 'Error: NFT collection NOT created.');
-    expect(collection.owner.toString()).to.be.equal(toSubstrateAddress(alicesPublicKey));
+    expect(collection.owner.toString()).to.be.equal(toSubstrateAddress(alicePrivateKey));
     expect(utf16ToStr(collection.name.toJSON() as any)).to.be.equal(name);
     expect(utf16ToStr(collection.description.toJSON() as any)).to.be.equal(description);
     expect(hexToStr(collection.tokenPrefix.toJSON())).to.be.equal(tokenPrefix);
@@ -482,13 +481,12 @@
   });
 }
 
-export async function findUnusedAddress(api: ApiPromise, seedAddition = ''): Promise<IKeyringPair> {
+export async function findUnusedAddress(api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair, seedAddition = ''): Promise<IKeyringPair> {
   let bal = 0n;
   let unused;
   do {
     const randomSeed = 'seed' + Math.floor(Math.random() * Math.floor(10000)) + seedAddition;
-    const keyring = new Keyring({type: 'sr25519'});
-    unused = keyring.addFromUri(`//${randomSeed}`);
+    unused = privateKeyWrapper(`//${randomSeed}`);
     bal = (await api.query.system.account(unused.address)).data.free.toBigInt();
   } while (bal !== 0n);
   return unused;
@@ -498,8 +496,8 @@
   return (await api.rpc.unique.allowance(collectionId, normalizeAccountId(owner), normalizeAccountId(approved), tokenId)).toBigInt();
 }
 
-export function findUnusedAddresses(api: ApiPromise, amount: number): Promise<IKeyringPair[]> {
-  return Promise.all(new Array(amount).fill(null).map(() => findUnusedAddress(api, '_' + Date.now())));
+export function findUnusedAddresses(api: ApiPromise, privateKeyWrapper: (account: string) => IKeyringPair, amount: number): Promise<IKeyringPair[]> {
+  return Promise.all(new Array(amount).fill(null).map(() => findUnusedAddress(api, privateKeyWrapper, '_' + Date.now())));
 }
 
 export async function findNotExistingCollection(api: ApiPromise): Promise<number> {

--- a/tests/src/xcmTransfer.test.ts
+++ b/tests/src/xcmTransfer.test.ts
@@ -24,7 +24,6 @@
 import {getGenericResult} from './util/helpers';
 import waitNewBlocks from './substrate/wait-new-blocks';
 import getBalance from './substrate/get-balance';
-import {alicesPublicKey} from './accounts';
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
@@ -144,7 +143,7 @@
     let balanceBefore: bigint;
     
     await usingApi(async (api) => {
-      [balanceBefore] = await getBalance(api, [alicesPublicKey]);
+      [balanceBefore] = await getBalance(api, [alice.address]);
     });
 
     await usingApi(async (api) => {
@@ -181,7 +180,7 @@
     await usingApi(async (api) => {
       // todo do something about instant sealing, where there might not be any new blocks
       await waitNewBlocks(api, 3);
-      const [balanceAfter] = await getBalance(api, [alicesPublicKey]);
+      const [balanceAfter] = await getBalance(api, [alice.address]);
       expect(balanceAfter > balanceBefore).to.be.true;
     });
   });