git.delta.rocks / unique-network / refs/commits / 535a8e928ce8

--- a/tests/package.json
+++ b/tests/package.json
@@ -26,24 +26,25 @@
   "scripts": {
     "lint": "eslint --ext .ts,.js src/",
     "fix": "eslint --ext .ts,.js src/ --fix",
-    "test": "mocha --timeout 9999999 -r ts-node/register './src/**/*.test.ts'",
-    "testEth": "mocha --timeout 9999999 -r ts-node/register './**/eth/**/*.test.ts'",
-    "testEthMarketplace": "mocha --timeout 9999999 -r ts-node/register './**/eth/marketplace/**/*.test.ts'",
-    "testEthNesting": "mocha --timeout 9999999 -r ts-node/register './**/eth/nesting/**/*.test.ts'",
-    "testEthFractionalizer": "mocha --timeout 9999999 -r ts-node/register './**/eth/fractionalizer/**/*.test.ts'",
+    "feedAlices": "ts-node ./src/util/playgrounds/feedAlices.ts",
+
+    "test": "yarn feedAlices && mocha --parallel --timeout 9999999 -r ts-node/register './src/**/*.test.ts'",
+    "testStructure": "yarn feedAlices && mocha --parallel --timeout 9999999 -r ts-node/register ./**/nesting/**.test.ts",
+    "testEth": "yarn feedAlices && mocha --parallel --timeout 9999999 -r ts-node/register './**/eth/**/*.test.ts'",
+    "testEthNesting": "yarn feedAlices && mocha --parallel --timeout 9999999 -r ts-node/register './**/eth/nesting/**/*.test.ts'",
+    "testEthFractionalizer": "yarn feedAlices && mocha --parallel --timeout 9999999 -r ts-node/register './**/eth/fractionalizer/**/*.test.ts'",
+    "testEthMarketplace": "yarn feedAlices && mocha --parallel --timeout 9999999 -r ts-node/register './**/eth/marketplace/**/*.test.ts'",
+    "testCollision": "yarn feedAlices && mocha --parallel --timeout 9999999 -r ts-node/register ./src/collision-tests/*.test.ts",
+    "testEvent": "yarn feedAlices && mocha --parallel --timeout 9999999 -r ts-node/register ./src/check-event/*.test.ts",
+    "testRmrk": "mocha --timeout 9999999 -r ts-node/register ./**/rmrk/**.test.ts",
+
     "testEthPayable": "mocha --timeout 9999999 -r ts-node/register './**/eth/payable.test.ts'",
-    "load": "mocha --timeout 9999999 -r ts-node/register './**/*.load.ts'",
-    "loadTransfer": "ts-node src/transfer.nload.ts",
-    "testCollision": "mocha --timeout 9999999 -r ts-node/register ./src/collision-tests/*.test.ts",
-    "testEvent": "mocha --timeout 9999999 -r ts-node/register ./src/check-event/*.test.ts",
+    "testEthTokenProperties": "mocha --timeout 9999999 -r ts-node/register ./**/eth/tokenProperties.test.ts",
     "testNesting": "mocha --timeout 9999999 -r ts-node/register ./**/nest.test.ts",
     "testUnnesting": "mocha --timeout 9999999 -r ts-node/register ./**/unnest.test.ts",
-    "testStructure": "mocha --timeout 9999999 -r ts-node/register ./**/nesting/**.test.ts",
     "testProperties": "mocha --timeout 9999999 -r ts-node/register ./**/properties.test.ts ./**/getPropertiesRpc.test.ts",
     "testMigration": "mocha --timeout 9999999 -r ts-node/register ./**/nesting/migration-check.test.ts",
-    "testRmrk": "mocha --timeout 9999999 -r ts-node/register ./**/rmrk/**.test.ts",
     "testAddCollectionAdmin": "mocha --timeout 9999999 -r ts-node/register ./**/addCollectionAdmin.test.ts",
-    "testSetSchemaVersion": "mocha --timeout 9999999 -r ts-node/register ./**/setSchemaVersion.test.ts",
     "testSetCollectionLimits": "mocha --timeout 9999999 -r ts-node/register ./**/setCollectionLimits.test.ts",
     "testChangeCollectionOwner": "mocha --timeout 9999999 -r ts-node/register ./**/change-collection-owner.test.ts",
     "testSetCollectionSponsor": "mocha --timeout 9999999 -r ts-node/register ./**/setCollectionSponsor.test.ts",
@@ -96,6 +97,10 @@
     "testEthFT": "mocha --timeout 9999999 -r ts-node/register ./**/eth/fungible.test.ts",
     "testRPC": "mocha --timeout 9999999 -r ts-node/register ./**/rpc.test.ts",
     "testPromotion": "mocha --timeout 9999999 -r ts-node/register ./**/app-promotion.test.ts",
+
+    "load": "mocha --timeout 9999999 -r ts-node/register './**/*.load.ts'",
+    "loadTransfer": "ts-node src/transfer.nload.ts",
+    
     "polkadot-types-fetch-metadata": "curl -H 'Content-Type: application/json' -d '{\"id\":\"1\", \"jsonrpc\":\"2.0\", \"method\": \"state_getMetadata\", \"params\":[]}' http://localhost:9933 > src/interfaces/metadata.json",
     "polkadot-types-from-defs": "ts-node ./node_modules/.bin/polkadot-types-from-defs --endpoint src/interfaces/metadata.json --input src/interfaces/ --package .",
     "polkadot-types-from-chain": "ts-node ./node_modules/.bin/polkadot-types-from-chain --endpoint src/interfaces/metadata.json --output src/interfaces/ --package .",

--- a/tests/src/addCollectionAdmin.test.ts
+++ b/tests/src/addCollectionAdmin.test.ts
@@ -21,8 +21,8 @@
   let donor: IKeyringPair;
 
   before(async () => {
-    await usingPlaygrounds(async (_, privateKeyWrapper) => {
-      donor = privateKeyWrapper('//Alice');
+    await usingPlaygrounds(async (_, privateKey) => {
+      donor = await privateKey({filename: __filename});
     });
   });
 
@@ -44,8 +44,8 @@
   let donor: IKeyringPair;
 
   before(async () => {
-    await usingPlaygrounds(async (_, privateKeyWrapper) => {
-      donor = privateKeyWrapper('//Alice');
+    await usingPlaygrounds(async (_, privateKey) => {
+      donor = await privateKey({filename: __filename});
     });
   });
 

--- a/tests/src/adminTransferAndBurn.test.ts
+++ b/tests/src/adminTransferAndBurn.test.ts
@@ -24,7 +24,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([10n, 10n, 10n], donor);
     });
   });

--- a/tests/src/allowLists.test.ts
+++ b/tests/src/allowLists.test.ts
@@ -25,7 +25,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([30n, 10n, 10n], donor);
     });
   });
@@ -87,7 +87,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([30n, 10n, 10n], donor);
     });
   });
@@ -163,7 +163,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([30n, 10n, 10n], donor);
     });
   });
@@ -291,7 +291,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([100n, 100n], donor);
     });
   });

--- a/tests/src/app-promotion.test.ts
+++ b/tests/src/app-promotion.test.ts
@@ -43,8 +43,8 @@
   before(async function () {
     await usingPlaygrounds(async (helper, privateKey) => {
       if (!getModuleNames(helper.api!).includes(Pallets.AppPromotion)) this.skip();
-      alice = privateKey('//Alice');
-      palletAdmin = privateKey('//Charlie'); // TODO use custom address
+      alice = await privateKey({filename: __filename});
+      [palletAdmin] = await helper.arrange.createAccounts([100n], alice);
       await helper.signTransaction(alice, helper.api!.tx.sudo.sudo(helper.api!.tx.appPromotion.setAdminAddress({Substrate: palletAdmin.address})));
       nominal = helper.balance.getOneTokenNominal();
       await helper.balance.transferToSubstrate(alice, palletAdmin.address, 1000n * nominal);

--- a/tests/src/approve.test.ts
+++ b/tests/src/approve.test.ts
@@ -25,7 +25,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([100n, 100n, 100n], donor);
     });
   });
@@ -104,7 +104,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([100n, 100n, 100n], donor);
     });
   });
@@ -141,7 +141,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([100n, 100n, 100n], donor);
     });
   });
@@ -184,7 +184,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([100n, 100n, 100n], donor);
     });
   });
@@ -235,7 +235,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie, dave] = await helper.arrange.createAccounts([100n, 100n, 100n, 100n], donor);
     });
   });
@@ -265,7 +265,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([100n, 100n, 100n], donor);
     });
   });
@@ -320,7 +320,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([100n, 100n, 100n], donor);
     });
   });
@@ -357,7 +357,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie, dave] = await helper.arrange.createAccounts([100n, 100n, 100n, 100n], donor);
     });
   });
@@ -423,7 +423,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie, dave] = await helper.arrange.createAccounts([100n, 100n, 100n, 100n], donor);
     });
   });
@@ -474,7 +474,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([100n, 100n, 100n], donor);
     });
   });
@@ -495,7 +495,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([100n, 100n, 100n], donor);
     });
   });

--- a/tests/src/burnItem.test.ts
+++ b/tests/src/burnItem.test.ts
@@ -25,7 +25,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([100n, 100n], donor);
     });
   });
@@ -80,7 +80,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([100n, 100n], donor);
     });
   });
@@ -123,7 +123,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([100n, 100n], donor);
     });
   });

--- a/tests/src/change-collection-owner.test.ts
+++ b/tests/src/change-collection-owner.test.ts
@@ -23,7 +23,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([100n, 100n], donor);
     });
   });
@@ -46,7 +46,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([100n, 100n, 100n], donor);
     });
   });
@@ -108,7 +108,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([100n, 100n, 100n], donor);
     });
   });

--- a/tests/src/check-event/burnItemEvent.test.ts
+++ b/tests/src/check-event/burnItemEvent.test.ts
@@ -24,7 +24,7 @@
   let alice: IKeyringPair;
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([10n], donor);
     });
   });

--- a/tests/src/check-event/createCollectionEvent.test.ts
+++ b/tests/src/check-event/createCollectionEvent.test.ts
@@ -23,7 +23,7 @@
   let alice: IKeyringPair;
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([10n], donor);
     });
   });

--- a/tests/src/check-event/createItemEvent.test.ts
+++ b/tests/src/check-event/createItemEvent.test.ts
@@ -23,7 +23,7 @@
   let alice: IKeyringPair;
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([10n], donor);
     });
   });

--- a/tests/src/check-event/createMultipleItemsEvent.test.ts
+++ b/tests/src/check-event/createMultipleItemsEvent.test.ts
@@ -23,7 +23,7 @@
   let alice: IKeyringPair;
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([10n], donor);
     });
   });

--- a/tests/src/check-event/destroyCollectionEvent.test.ts
+++ b/tests/src/check-event/destroyCollectionEvent.test.ts
@@ -23,7 +23,7 @@
   let alice: IKeyringPair;
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([10n], donor);
     });
   });

--- a/tests/src/check-event/transferEvent.test.ts
+++ b/tests/src/check-event/transferEvent.test.ts
@@ -25,7 +25,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([10n, 10n], donor);
     });
   });

--- a/tests/src/check-event/transferFromEvent.test.ts
+++ b/tests/src/check-event/transferFromEvent.test.ts
@@ -24,7 +24,7 @@
   let bob: IKeyringPair;
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([10n, 10n], donor);
     });
   });

--- a/tests/src/confirmSponsorship.test.ts
+++ b/tests/src/confirmSponsorship.test.ts
@@ -37,7 +37,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie, zeroBalance] = await helper.arrange.createAccounts([100n, 100n, 100n, 0n], donor);
     });
   });
@@ -183,7 +183,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie, ownerZeroBalance, senderZeroBalance] = await helper.arrange.createAccounts([100n, 100n, 100n, 0n, 0n], donor);
     });
   });

--- a/tests/src/createCollection.test.ts
+++ b/tests/src/createCollection.test.ts
@@ -49,7 +49,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([100n], donor);
     });
   });
@@ -110,7 +110,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([100n], donor);
     });
   });

--- a/tests/src/createItem.test.ts
+++ b/tests/src/createItem.test.ts
@@ -50,7 +50,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([100n, 100n], donor);
     });
   });
@@ -179,7 +179,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([100n, 100n], donor);
     });
   });

--- a/tests/src/createMultipleItems.test.ts
+++ b/tests/src/createMultipleItems.test.ts
@@ -22,7 +22,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([100n], donor);
     });
   });
@@ -168,7 +168,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([100n, 100n], donor);
     });
   });

--- a/tests/src/createMultipleItemsEx.test.ts
+++ b/tests/src/createMultipleItemsEx.test.ts
@@ -25,7 +25,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([100n, 100n, 100n], donor);
     });
   });
@@ -268,7 +268,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([100n, 100n, 100n], donor);
     });
   });

--- a/tests/src/creditFeesToTreasury.test.ts
+++ b/tests/src/creditFeesToTreasury.test.ts
@@ -50,7 +50,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([100n, 100n], donor);
     });
   });

--- a/tests/src/destroyCollection.test.ts
+++ b/tests/src/destroyCollection.test.ts
@@ -22,7 +22,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([100n], donor);
     });
   });
@@ -62,7 +62,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([100n, 100n], donor);
     });
   });

--- a/tests/src/enableDisableTransfer.test.ts
+++ b/tests/src/enableDisableTransfer.test.ts
@@ -23,7 +23,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([100n, 100n], donor);
     });
   });
@@ -62,7 +62,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([100n, 100n], donor);
     });
   });

--- a/tests/src/eth/allowlist.test.ts
+++ b/tests/src/eth/allowlist.test.ts
@@ -22,7 +22,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (_helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 
@@ -70,7 +70,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (_helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 

--- a/tests/src/eth/base.test.ts
+++ b/tests/src/eth/base.test.ts
@@ -29,7 +29,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (_helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 
@@ -82,7 +82,7 @@
 
   before(async () => {
     await usingEthPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       const [alice] = await helper.arrange.createAccounts([10n], donor);
       ({collectionId: collection} = await helper.nft.mintCollection(alice, {name: 'test', description: 'test', tokenPrefix: 'test'}));
       minter = helper.eth.createAccount();

--- a/tests/src/eth/collectionAdmin.test.ts
+++ b/tests/src/eth/collectionAdmin.test.ts
@@ -32,7 +32,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (_helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 
@@ -144,7 +144,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (_helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 
@@ -272,7 +272,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (_helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 
@@ -314,7 +314,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (_helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 

--- a/tests/src/eth/collectionProperties.test.ts
+++ b/tests/src/eth/collectionProperties.test.ts
@@ -1,3 +1,19 @@
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
 import {itEth, usingEthPlaygrounds, expect} from './util/playgrounds';
 import {IKeyringPair} from '@polkadot/types/types';
 
@@ -7,7 +23,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (_helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await _helper.arrange.createAccounts([10n], donor);
     });
   });

--- a/tests/src/eth/createNFTCollection.test.ts
+++ b/tests/src/eth/createNFTCollection.test.ts
@@ -24,7 +24,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (_helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 
@@ -150,7 +150,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (_helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 

--- a/tests/src/eth/createRFTCollection.test.ts
+++ b/tests/src/eth/createRFTCollection.test.ts
@@ -26,7 +26,7 @@
   before(async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 
@@ -152,7 +152,7 @@
   before(async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 

--- a/tests/src/eth/crossTransfer.test.ts
+++ b/tests/src/eth/crossTransfer.test.ts
@@ -26,7 +26,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([10n, 10n, 10n], donor);
     });
   });
@@ -69,7 +69,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([10n, 10n, 10n], donor);
     });
   });

--- a/tests/src/eth/fractionalizer/fractionalizer.test.ts
+++ b/tests/src/eth/fractionalizer/fractionalizer.test.ts
@@ -85,7 +85,7 @@
   before(async function() {
     await usingEthPlaygrounds(async (helper: EthUniqueHelper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 
@@ -225,7 +225,7 @@
   before(async function() {
     await usingEthPlaygrounds(async (helper: EthUniqueHelper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 

--- a/tests/src/eth/fungible.test.ts
+++ b/tests/src/eth/fungible.test.ts
@@ -23,7 +23,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([20n], donor);
     });
   });
@@ -55,7 +55,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([20n], donor);
     });
   });
@@ -224,7 +224,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([20n], donor);
     });
   });
@@ -277,7 +277,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([20n], donor);
     });
   });

--- a/tests/src/eth/helpersSmoke.test.ts
+++ b/tests/src/eth/helpersSmoke.test.ts
@@ -22,7 +22,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (_helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
   

--- a/tests/src/eth/migration.test.ts
+++ b/tests/src/eth/migration.test.ts
@@ -22,7 +22,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (_helper, privateKey) => {
-      superuser = privateKey('//Alice');
+      superuser = await privateKey('//Alice');
     });
   });
   

--- a/tests/src/eth/nesting/nest.test.ts
+++ b/tests/src/eth/nesting/nest.test.ts
@@ -21,7 +21,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (_, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 

--- a/tests/src/eth/nonFungible.test.ts
+++ b/tests/src/eth/nonFungible.test.ts
@@ -25,7 +25,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([10n], donor);
     });
   });
@@ -75,7 +75,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (_helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 
@@ -137,7 +137,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([10n], donor);
     });
   });
@@ -318,7 +318,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([10n], donor);
     });
   });
@@ -371,7 +371,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([20n], donor);
     });
   });
@@ -496,7 +496,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([20n], donor);
     });
   });

--- a/tests/src/eth/payable.test.ts
+++ b/tests/src/eth/payable.test.ts
@@ -23,7 +23,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (_, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 
@@ -68,7 +68,7 @@
     expect(await contract.methods.getUnaccounted().call()).to.be.equal(weiCount.toString());
   });
 
-  itEth('Balance can be retrieved from evm contract', async({helper, privateKey}) => {
+  itEth('Balance can be retrieved from evm contract', async({helper}) => {
     const FEE_BALANCE = 10n * helper.balance.getOneTokenNominal();
     const CONTRACT_BALANCE = 1n * helper.balance.getOneTokenNominal();
 
@@ -80,7 +80,7 @@
 
     await web3.eth.sendTransaction({from: deployer, to: contract.options.address, value: CONTRACT_BALANCE.toString(), gas: helper.eth.DEFAULT_GAS});
 
-    const receiver = privateKey(`//Receiver${Date.now()}`);
+    const [receiver] = await helper.arrange.createAccounts([0n], donor);
 
     // First receive balance on eth balance of bob
     {
@@ -110,7 +110,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (_, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 

--- a/tests/src/eth/proxy/fungibleProxy.test.ts
+++ b/tests/src/eth/proxy/fungibleProxy.test.ts
@@ -38,7 +38,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([10n], donor);
     });
   });
@@ -77,7 +77,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([10n], donor);
     });
   });

--- a/tests/src/eth/proxy/nonFungibleProxy.test.ts
+++ b/tests/src/eth/proxy/nonFungibleProxy.test.ts
@@ -38,7 +38,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([10n], donor);
     });
   });
@@ -95,7 +95,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([10n], donor);
     });
   });
@@ -139,7 +139,7 @@
   });
 
   //TODO: CORE-302 add eth methods
-  itWeb3.skip('Can perform mintBulk()', async ({web3, api, privateKeyWrapper}) => {
+  itWeb3.skip('Can perform mintBulk()', async () => {
     /*
     const collection = await createCollectionExpectSuccess({
       mode: {type: 'NFT'},

--- a/tests/src/eth/reFungible.test.ts
+++ b/tests/src/eth/reFungible.test.ts
@@ -25,7 +25,7 @@
     await usingEthPlaygrounds(async (helper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
 
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 
@@ -117,7 +117,7 @@
     await usingEthPlaygrounds(async (helper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
 
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 
@@ -329,7 +329,7 @@
     await usingEthPlaygrounds(async (helper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
 
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 
@@ -370,7 +370,7 @@
     await usingEthPlaygrounds(async (helper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
 
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([20n], donor);
     });
   });

--- a/tests/src/eth/reFungibleToken.test.ts
+++ b/tests/src/eth/reFungibleToken.test.ts
@@ -28,7 +28,7 @@
     await usingEthPlaygrounds(async (helper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
 
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([20n], donor);
     });
   });
@@ -72,7 +72,7 @@
     await usingEthPlaygrounds(async (helper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
 
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 
@@ -136,7 +136,7 @@
     await usingEthPlaygrounds(async (helper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
 
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([50n], donor);
     });
   });
@@ -327,7 +327,7 @@
     await usingEthPlaygrounds(async (helper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
 
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([50n], donor);
     });
   });
@@ -382,7 +382,7 @@
     await usingEthPlaygrounds(async (helper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
 
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([50n], donor);
     });
   });
@@ -472,7 +472,7 @@
     await usingEthPlaygrounds(async (helper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
 
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
 

--- a/tests/src/eth/tokenProperties.test.ts
+++ b/tests/src/eth/tokenProperties.test.ts
@@ -1,94 +1,116 @@
-import {addCollectionAdminExpectSuccess, createCollectionExpectSuccess, createItemExpectSuccess} from '../util/helpers';
-import {cartesian, collectionIdToAddress, createEthAccount, createEthAccountWithBalance, GAS_ARGS, itWeb3} from './util/helpers';
-import nonFungibleAbi from './nonFungibleAbi.json';
-import {expect} from 'chai';
-import {executeTransaction} from '../substrate/substrate-api';
+// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
+// This file is part of Unique Network.
+
+// Unique Network is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Unique Network is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
+
+import {itEth, usingEthPlaygrounds, expect, cartesian} from './util/playgrounds';
+import {IKeyringPair} from '@polkadot/types/types';
 
 describe('EVM token properties', () => {
-  itWeb3('Can be reconfigured', async({web3, api, privateKeyWrapper}) => {
-    const alice = privateKeyWrapper('//Alice');
-    const caller = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
+  let donor: IKeyringPair;
+  let alice: IKeyringPair;
+
+  before(async function() {
+    await usingEthPlaygrounds(async (helper, privateKey) => {
+      donor = await privateKey({filename: __filename});
+      [alice] = await helper.arrange.createAccounts([100n], donor);
+    });
+  });
+
+  itEth('Can be reconfigured', async({helper}) => {
+    const caller = await helper.eth.createAccountWithBalance(donor);
     for(const [mutable,collectionAdmin, tokenOwner] of cartesian([], [false, true], [false, true], [false, true])) {
-      const collection = await createCollectionExpectSuccess({mode: {type: 'NFT'}});
-      await addCollectionAdminExpectSuccess(alice, collection, {Ethereum: caller});
+      const collection = await helper.nft.mintCollection(alice);
+      await collection.addAdmin(alice, {Ethereum: caller});
       
-      const address = collectionIdToAddress(collection);
-      const contract = new web3.eth.Contract(nonFungibleAbi as any, address, {from: caller, ...GAS_ARGS});
+      const address = helper.ethAddress.fromCollectionId(collection.collectionId);
+      const contract = helper.ethNativeContract.collection(address, 'nft', caller);
   
       await contract.methods.setTokenPropertyPermission('testKey', mutable, collectionAdmin, tokenOwner).send({from: caller});
   
-      const state = (await api.query.common.collectionPropertyPermissions(collection)).toJSON();
-      expect(state).to.be.deep.equal({
-        [web3.utils.toHex('testKey')]: {mutable, collectionAdmin, tokenOwner},
-      });
+      expect(await collection.getPropertyPermissions()).to.be.deep.equal([{
+        key: 'testKey',
+        permission: {mutable, collectionAdmin, tokenOwner},
+      }]);
     }
   });
-  itWeb3('Can be set', async({web3, api, privateKeyWrapper}) => {
-    const alice = privateKeyWrapper('//Alice');
-    const caller = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const collection = await createCollectionExpectSuccess({mode: {type: 'NFT'}});
-    const token = await createItemExpectSuccess(alice, collection, 'NFT');
 
-    await executeTransaction(api, alice, api.tx.unique.setTokenPropertyPermissions(collection, [{
+  itEth('Can be set', async({helper}) => {
+    const caller = await helper.eth.createAccountWithBalance(donor);
+    const collection = await helper.nft.mintCollection(alice);
+    const token = await collection.mintToken(alice);
+
+    await collection.setTokenPropertyPermissions(alice, [{
       key: 'testKey',
       permission: {
         collectionAdmin: true,
       },
-    }]));
+    }]);
 
-    await addCollectionAdminExpectSuccess(alice, collection, {Ethereum: caller});
+    await collection.addAdmin(alice, {Ethereum: caller});
 
-    const address = collectionIdToAddress(collection);
-    const contract = new web3.eth.Contract(nonFungibleAbi as any, address, {from: caller, ...GAS_ARGS});
+    const address = helper.ethAddress.fromCollectionId(collection.collectionId);
+    const contract = helper.ethNativeContract.collection(address, 'nft', caller);
 
-    await contract.methods.setProperty(token, 'testKey', Buffer.from('testValue')).send({from: caller});
+    await contract.methods.setProperty(token.tokenId, 'testKey', Buffer.from('testValue')).send({from: caller});
 
-    const [{value}] = (await api.rpc.unique.tokenProperties(collection, token, ['testKey'])).toHuman()! as any;
+    const [{value}] = await token.getProperties(['testKey']);
     expect(value).to.equal('testValue');
   });
-  itWeb3('Can be deleted', async({web3, api, privateKeyWrapper}) => {
-    const alice = privateKeyWrapper('//Alice');
-    const caller = await createEthAccountWithBalance(api, web3, privateKeyWrapper);
-    const collection = await createCollectionExpectSuccess({mode: {type: 'NFT'}});
-    const token = await createItemExpectSuccess(alice, collection, 'NFT');
 
-    await executeTransaction(api, alice, api.tx.unique.setTokenPropertyPermissions(collection, [{
+  itEth('Can be deleted', async({helper}) => {
+    const caller = await helper.eth.createAccountWithBalance(donor);
+    const collection = await helper.nft.mintCollection(alice);
+    const token = await collection.mintToken(alice);
+
+    await collection.setTokenPropertyPermissions(alice, [{
       key: 'testKey',
       permission: {
         mutable: true,
         collectionAdmin: true,
       },
-    }]));
-    await executeTransaction(api, alice, api.tx.unique.setTokenProperties(collection, token, [{key: 'testKey', value: 'testValue'}]));
+    }]);
+    await token.setProperties(alice, [{key: 'testKey', value: 'testValue'}]);
 
-    await addCollectionAdminExpectSuccess(alice, collection, {Ethereum: caller});
+    await collection.addAdmin(alice, {Ethereum: caller});
 
-    const address = collectionIdToAddress(collection);
-    const contract = new web3.eth.Contract(nonFungibleAbi as any, address, {from: caller, ...GAS_ARGS});
+    const address = helper.ethAddress.fromCollectionId(collection.collectionId);
+    const contract = helper.ethNativeContract.collection(address, 'nft', caller);
 
-    await contract.methods.deleteProperty(token, 'testKey').send({from: caller});
+    await contract.methods.deleteProperty(token.tokenId, 'testKey').send({from: caller});
 
-    const result = (await api.rpc.unique.tokenProperties(collection, token, ['testKey'])).toJSON()! as any;
+    const result = await token.getProperties(['testKey']);
     expect(result.length).to.equal(0);
   });
-  itWeb3('Can be read', async({web3, api, privateKeyWrapper}) => {
-    const alice = privateKeyWrapper('//Alice');
-    const caller = createEthAccount(web3);
-    const collection = await createCollectionExpectSuccess({mode: {type:'NFT'}});
-    const token = await createItemExpectSuccess(alice, collection, 'NFT');
 
-    await executeTransaction(api, alice, api.tx.unique.setTokenPropertyPermissions(collection, [{
+  itEth('Can be read', async({helper}) => {
+    const caller = helper.eth.createAccount();
+    const collection = await helper.nft.mintCollection(alice);
+    const token = await collection.mintToken(alice);
+
+    await collection.setTokenPropertyPermissions(alice, [{
       key: 'testKey',
       permission: {
         collectionAdmin: true,
       },
-    }]));
-    await executeTransaction(api, alice, api.tx.unique.setTokenProperties(collection, token, [{key: 'testKey', value: 'testValue'}]));
+    }]);
+    await token.setProperties(alice, [{key: 'testKey', value: 'testValue'}]);
 
-    const address = collectionIdToAddress(collection);
-    const contract = new web3.eth.Contract(nonFungibleAbi as any, address, {from: caller, ...GAS_ARGS});
+    const address = helper.ethAddress.fromCollectionId(collection.collectionId);
+    const contract = helper.ethNativeContract.collection(address, 'nft', caller);
 
-    const value = await contract.methods.property(token, 'testKey').call();
-    expect(value).to.equal(web3.utils.toHex('testValue'));
+    const value = await contract.methods.property(token.tokenId, 'testKey').call();
+    expect(value).to.equal(helper.getWeb3().utils.toHex('testValue'));
   });
 });

--- a/tests/src/eth/util/playgrounds/index.ts
+++ b/tests/src/eth/util/playgrounds/index.ts
@@ -1,6 +1,7 @@
 // Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
 // SPDX-License-Identifier: Apache-2.0
 
+import * as path from 'path';
 import {IKeyringPair} from '@polkadot/types/types';
 
 import config from '../../../config';
@@ -13,12 +14,13 @@
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
 import chaiLike from 'chai-like';
-import {requirePalletsOrSkip} from '../../../util/playgrounds';
+import {getTestSeed, requirePalletsOrSkip} from '../../../util/playgrounds';
+
 chai.use(chaiAsPromised);
 chai.use(chaiLike);
 export const expect = chai.expect;
 
-export const usingEthPlaygrounds = async (code: (helper: EthUniqueHelper, privateKey: (seed: string) => IKeyringPair) => Promise<void>) => {
+export const usingEthPlaygrounds = async (code: (helper: EthUniqueHelper, privateKey: (seed: string | {filename: string}) => Promise<IKeyringPair>) => Promise<void>) => {
   const silentConsole = new SilentConsole();
   silentConsole.enable();
 
@@ -28,7 +30,20 @@
     await helper.connect(config.substrateUrl);
     await helper.connectWeb3(config.substrateUrl);
     const ss58Format = helper.chain.getChainProperties().ss58Format;
-    const privateKey = (seed: string) => helper.util.fromSeed(seed, ss58Format);
+    const privateKey = async (seed: string | {filename: string}) => {
+      if (typeof seed === 'string') {
+        return helper.util.fromSeed(seed, ss58Format);
+      }
+      else {
+        const actualSeed = getTestSeed(seed.filename);
+        let account = helper.util.fromSeed(actualSeed, ss58Format);
+        if (await helper.balance.getSubstrate(account.address) == 0n) {
+          console.warn(`${path.basename(seed.filename)}: Not enough funds present on the filename account. Using the default one as the donor instead.`);
+          account = helper.util.fromSeed('//Alice', ss58Format);
+        }
+        return account;
+      }
+    };
     await code(helper, privateKey);
   }
   finally {
@@ -38,7 +53,7 @@
   }
 };
   
-export async function itEth(name: string, cb: (apis: { helper: EthUniqueHelper, privateKey: (seed: string) => IKeyringPair }) => any, opts: { only?: boolean, skip?: boolean, requiredPallets?: string[] } = {}) {
+export async function itEth(name: string, cb: (apis: { helper: EthUniqueHelper, privateKey: (seed: string | {filename: string}) => Promise<IKeyringPair> }) => any, opts: { only?: boolean, skip?: boolean, requiredPallets?: string[] } = {}) {
   (opts.only ? it.only : 
     opts.skip ? it.skip : it)(name, async function() {
     await usingEthPlaygrounds(async (helper, privateKey) => {
@@ -51,13 +66,25 @@
   });
 }
 
-export async function itEthIfWithPallet(name: string, required: string[], cb: (apis: { helper: EthUniqueHelper, privateKey: (seed: string) => IKeyringPair }) => any, opts: { only?: boolean, skip?: boolean, requiredPallets?: string[] } = {}) {
+export async function itEthIfWithPallet(name: string, required: string[], cb: (apis: { helper: EthUniqueHelper, privateKey: (seed: string | {filename: string}) => Promise<IKeyringPair> }) => any, opts: { only?: boolean, skip?: boolean, requiredPallets?: string[] } = {}) {
   return itEth(name, cb, {requiredPallets: required, ...opts});
 }
 
-itEth.only = (name: string, cb: (apis: { helper: EthUniqueHelper, privateKey: (seed: string) => IKeyringPair }) => any) => itEth(name, cb, {only: true});
-itEth.skip = (name: string, cb: (apis: { helper: EthUniqueHelper, privateKey: (seed: string) => IKeyringPair }) => any) => itEth(name, cb, {skip: true});
+itEth.only = (name: string, cb: (apis: { helper: EthUniqueHelper, privateKey: (seed: string | {filename: string}) => Promise<IKeyringPair> }) => any) => itEth(name, cb, {only: true});
+itEth.skip = (name: string, cb: (apis: { helper: EthUniqueHelper, privateKey: (seed: string | {filename: string}) => Promise<IKeyringPair> }) => any) => itEth(name, cb, {skip: true});
 
-itEthIfWithPallet.only = (name: string, required: string[], cb: (apis: { helper: EthUniqueHelper, privateKey: (seed: string) => IKeyringPair }) => any) => itEthIfWithPallet(name, required, cb, {only: true});
-itEthIfWithPallet.skip = (name: string, required: string[], cb: (apis: { helper: EthUniqueHelper, privateKey: (seed: string) => IKeyringPair }) => any) => itEthIfWithPallet(name, required, cb, {skip: true});
+itEthIfWithPallet.only = (name: string, required: string[], cb: (apis: { helper: EthUniqueHelper, privateKey: (seed: string | {filename: string}) => Promise<IKeyringPair> }) => any) => itEthIfWithPallet(name, required, cb, {only: true});
+itEthIfWithPallet.skip = (name: string, required: string[], cb: (apis: { helper: EthUniqueHelper, privateKey: (seed: string | {filename: string}) => Promise<IKeyringPair> }) => any) => itEthIfWithPallet(name, required, cb, {skip: true});
 itEth.ifWithPallets = itEthIfWithPallet;
+
+type ElementOf<A> = A extends readonly (infer T)[] ? T : never;
+// I want a fancier api, not a memory efficiency
+export function* cartesian<T extends Array<Array<any>>, R extends Array<any>>(internalRest: [...R], ...args: [...T]): Generator<[...R, ...{[K in keyof T]: ElementOf<T[K]>}]> {
+  if(args.length === 0) {
+    yield internalRest as any;
+    return;
+  }
+  for(const value of args[0]) {
+    yield* cartesian([...internalRest, value], ...args.slice(1)) as any;
+  }
+}

--- a/tests/src/evmCoder.test.ts
+++ b/tests/src/evmCoder.test.ts
@@ -92,7 +92,7 @@
 
   before(async function() {
     await usingEthPlaygrounds(async (_helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
     });
   });
   

--- a/tests/src/fungible.test.ts
+++ b/tests/src/fungible.test.ts
@@ -20,12 +20,13 @@
 const U128_MAX = (1n << 128n) - 1n;
 
 describe('integration test: Fungible functionality:', () => {
+  let donor: IKeyringPair;
   let alice: IKeyringPair;
   let bob: IKeyringPair;
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([100n, 10n], donor);
     });
   });
@@ -43,9 +44,9 @@
     expect(aliceBalance).to.be.equal(U128_MAX);
   });
   
-  itSub('RPC method tokenOnewrs for fungible collection and token', async ({helper, privateKey}) => {
+  itSub('RPC method tokenOnewrs for fungible collection and token', async ({helper}) => {
     const ethAcc = {Ethereum: '0x67fb3503a61b284dc83fa96dceec4192db47dc7c'};
-    const facelessCrowd = Array(7).fill(0).map((_, i) => ({Substrate: privateKey(`//Alice+${i}`).address}));
+    const facelessCrowd = (await helper.arrange.createAccounts(Array(7).fill(0n), donor)).map(keyring => {return {Substrate: keyring.address};});
 
     const collection = await helper.ft.mintCollection(alice, {name: 'test', description: 'test', tokenPrefix: 'test'});
 
@@ -64,7 +65,7 @@
     expect(owners).to.deep.include.members([{Substrate: alice.address}, ethAcc, {Substrate: bob.address}, ...facelessCrowd]);
     expect(owners.length).to.be.equal(10);
     
-    const eleven = privateKey('//ALice+11');
+    const [eleven] = await helper.arrange.createAccounts([0n], donor);
     expect(await collection.transfer(alice, {Substrate: eleven.address}, 10n)).to.be.true;
     expect((await collection.getTop10Owners()).length).to.be.equal(10);
   });

--- a/tests/src/getPropertiesRpc.test.ts
+++ b/tests/src/getPropertiesRpc.test.ts
@@ -63,7 +63,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (_, privateKey) => {
-      alice = privateKey('//Alice');
+      alice = await privateKey({filename: __filename});
     });
   });
 

--- a/tests/src/inflation.test.ts
+++ b/tests/src/inflation.test.ts
@@ -23,7 +23,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (_, privateKey) => {
-      superuser = privateKey('//Alice');
+      superuser = await privateKey('//Alice');
     });
   });
   

--- a/tests/src/limits.test.ts
+++ b/tests/src/limits.test.ts
@@ -22,7 +22,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([10n], donor);
     });
   });
@@ -60,7 +60,7 @@
     await usingPlaygrounds(async (helper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
 
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([10n], donor);
     });
   });
@@ -292,7 +292,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([10n, 10n, 10n], donor);
     });
   });
@@ -333,7 +333,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([10n, 10n, 10n], donor);
     });
   });
@@ -366,7 +366,7 @@
     await usingPlaygrounds(async (helper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
 
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([10n, 10n, 10n], donor);
     });
   });
@@ -404,7 +404,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([10n], donor);
     });
   });

--- a/tests/src/nesting/graphs.test.ts
+++ b/tests/src/nesting/graphs.test.ts
@@ -45,7 +45,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([10n], donor);
     });
   });

--- a/tests/src/nesting/nest.test.ts
+++ b/tests/src/nesting/nest.test.ts
@@ -23,7 +23,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([50n, 10n], donor);
     });
   });
@@ -137,7 +137,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([50n, 10n, 10n], donor);
     });
   });
@@ -343,7 +343,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([100n, 50n], donor);
     });
   });

--- a/tests/src/nesting/properties.test.ts
+++ b/tests/src/nesting/properties.test.ts
@@ -26,7 +26,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([50n, 10n], donor);
     });
   });
@@ -141,7 +141,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([100n, 10n], donor);
     });
   });
@@ -269,7 +269,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([100n, 10n], donor);
     });
   });
@@ -332,7 +332,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([50n, 10n], donor);
     });
   });
@@ -453,7 +453,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([100n, 100n, 100n], donor);
     });
 
@@ -777,7 +777,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       let dave: IKeyringPair;
       [alice, bob, charlie, dave] = await helper.arrange.createAccounts([100n, 100n, 100n, 100n], donor);
 
@@ -977,7 +977,7 @@
     await usingPlaygrounds(async (helper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
 
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([100n, 100n, 100n], donor);
     });
   });
@@ -1002,7 +1002,7 @@
     ])).to.be.rejectedWith(/common\.NoPermission/);
   });
 
-  itSub('Forbids mutating token property with tokenOwher==true when signer doesn\'t have all pieces', async ({helper}) =>  {
+  itSub('Forbids mutating token property with tokenOwner==true when signer doesn\'t have all pieces', async ({helper}) =>  {
     const token = await prepare(helper);
 
     await expect(token.collection.setTokenPropertyPermissions(alice, [{key: 'fractals', permission: {mutable:true, tokenOwner: true}}]))

--- a/tests/src/nesting/unnest.test.ts
+++ b/tests/src/nesting/unnest.test.ts
@@ -22,7 +22,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice] = await helper.arrange.createAccounts([50n], donor);
     });
   });
@@ -91,7 +91,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([50n, 10n], donor);
     });
   });

--- a/tests/src/nextSponsoring.test.ts
+++ b/tests/src/nextSponsoring.test.ts
@@ -25,7 +25,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([20n, 10n], donor);
     });
   });

--- a/tests/src/refungible.test.ts
+++ b/tests/src/refungible.test.ts
@@ -20,6 +20,7 @@
 const MAX_REFUNGIBLE_PIECES = 1_000_000_000_000_000_000_000n;
 
 describe('integration test: Refungible functionality:', async () => {
+  let donor: IKeyringPair;
   let alice: IKeyringPair;
   let bob: IKeyringPair;
 
@@ -27,7 +28,7 @@
     await usingPlaygrounds(async (helper, privateKey) => {
       requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
 
-      const donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([100n, 10n], donor);
     });
   });
@@ -61,9 +62,9 @@
       .to.eventually.be.rejectedWith(/refungible\.WrongRefungiblePieces/);
   });
   
-  itSub('RPC method tokenOnewrs for refungible collection and token', async ({helper, privateKey}) => {
+  itSub('RPC method tokenOnewrs for refungible collection and token', async ({helper}) => {
     const ethAcc = {Ethereum: '0x67fb3503a61b284dc83fa96dceec4192db47dc7c'};
-    const facelessCrowd = Array(7).fill(0).map((_, i) => ({Substrate: privateKey(`//Alice+${i}`).address}));
+    const facelessCrowd = (await helper.arrange.createAccounts(Array(7).fill(0n), donor)).map(keyring => {return {Substrate: keyring.address};});
 
     const collection = await helper.rft.mintCollection(alice, {name: 'test', description: 'test', tokenPrefix: 'test'});
 
@@ -82,7 +83,7 @@
     expect(owners).to.deep.include.members([{Substrate: alice.address}, ethAcc, {Substrate: bob.address}, ...facelessCrowd]);
     expect(owners.length).to.be.equal(10);
     
-    const eleven = privateKey('//ALice+11');
+    const [eleven] = await helper.arrange.createAccounts([0n], donor);
     expect(await token.transfer(alice, {Substrate: eleven.address}, 10n)).to.be.true;
     expect((await token.getTop10Owners()).length).to.be.equal(10);
   });

--- a/tests/src/removeCollectionAdmin.test.ts
+++ b/tests/src/removeCollectionAdmin.test.ts
@@ -23,7 +23,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([20n, 10n], donor);
     });
   });
@@ -62,7 +62,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([20n, 10n, 10n], donor);
     });
   });

--- a/tests/src/removeCollectionSponsor.test.ts
+++ b/tests/src/removeCollectionSponsor.test.ts
@@ -24,7 +24,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([10n, 10n], donor);
     });
   });
@@ -78,7 +78,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([20n, 10n, 10n], donor);
     });
   });

--- a/tests/src/rpc.test.ts
+++ b/tests/src/rpc.test.ts
@@ -25,7 +25,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      donor = privateKey('//Alice');
+      donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([20n, 10n], donor);
     });
   });

--- a/tests/src/setCollectionLimits.test.ts
+++ b/tests/src/setCollectionLimits.test.ts
@@ -29,7 +29,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([20n, 10n], donor);
     });
   });
@@ -104,7 +104,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([20n, 10n], donor);
     });
   });

--- a/tests/src/setCollectionSponsor.test.ts
+++ b/tests/src/setCollectionSponsor.test.ts
@@ -24,7 +24,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([20n, 10n, 10n], donor);
     });
   });
@@ -93,7 +93,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([10n, 5n], donor);
     });
   });

--- a/tests/src/setPermissions.test.ts
+++ b/tests/src/setPermissions.test.ts
@@ -23,7 +23,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([10n, 10n], donor);
     });
   });
@@ -79,7 +79,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob] = await helper.arrange.createAccounts([10n, 10n], donor);
     });
   });

--- a/tests/src/transferFrom.test.ts
+++ b/tests/src/transferFrom.test.ts
@@ -24,7 +24,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([20n, 10n, 10n], donor);
     });
   });
@@ -91,7 +91,7 @@
 
   before(async () => {
     await usingPlaygrounds(async (helper, privateKey) => {
-      const donor = privateKey('//Alice');
+      const donor = await privateKey({filename: __filename});
       [alice, bob, charlie] = await helper.arrange.createAccounts([50n, 10n, 10n], donor);
     });
   });

--- a/tests/src/util/playgrounds/index.ts
+++ b/tests/src/util/playgrounds/index.ts
@@ -1,6 +1,8 @@
 // Copyright 2019-2022 Unique Network (Gibraltar) Ltd.
 // SPDX-License-Identifier: Apache-2.0
 
+import * as path from 'path';
+import * as crypto from 'crypto';
 import {IKeyringPair} from '@polkadot/types/types';
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
@@ -12,7 +14,16 @@
 chai.use(chaiAsPromised);
 export const expect = chai.expect;
 
-export const usingPlaygrounds = async (code: (helper: DevUniqueHelper, privateKey: (seed: string) => IKeyringPair) => Promise<void>, url: string = config.substrateUrl) => {
+const getTestHash = (filename: string) => {
+  return crypto.createHash('md5').update(path.basename(filename)).digest('hex');
+};
+
+export const getTestSeed = (filename: string) => {
+  return `//Alice+${getTestHash(filename)}`;
+};
+
+// todo:playgrounds normalize to seed and filename
+export const usingPlaygrounds = async (code: (helper: DevUniqueHelper, privateKey: (seed: string | {filename: string}) => Promise<IKeyringPair>) => Promise<void>, url: string = config.substrateUrl) => {
   const silentConsole = new SilentConsole();
   silentConsole.enable();
 
@@ -21,7 +32,20 @@
   try {
     await helper.connect(url);
     const ss58Format = helper.chain.getChainProperties().ss58Format;
-    const privateKey = (seed: string) => helper.util.fromSeed(seed, ss58Format);
+    const privateKey = async (seed: string | {filename: string}) => {
+      if (typeof seed === 'string') {
+        return helper.util.fromSeed(seed, ss58Format);
+      }
+      else {
+        const actualSeed = getTestSeed(seed.filename);
+        let account = helper.util.fromSeed(actualSeed, ss58Format);
+        if (await helper.balance.getSubstrate(account.address) == 0n) {
+          console.warn(`${path.basename(seed.filename)}: Not enough funds present on the filename account. Using the default one as the donor instead.`);
+          account = helper.util.fromSeed('//Alice', ss58Format);
+        }
+        return account;
+      }
+    };
     await code(helper, privateKey);
   }
   finally {
@@ -50,7 +74,7 @@
   }
 }
 
-export async function itSub(name: string, cb: (apis: { helper: DevUniqueHelper, privateKey: (seed: string) => IKeyringPair }) => any, opts: { only?: boolean, skip?: boolean, requiredPallets?: string[] } = {}) {
+export async function itSub(name: string, cb: (apis: { helper: DevUniqueHelper, privateKey: (seed: string) => Promise<IKeyringPair> }) => any, opts: { only?: boolean, skip?: boolean, requiredPallets?: string[] } = {}) {
   (opts.only ? it.only : 
     opts.skip ? it.skip : it)(name, async function () {
     await usingPlaygrounds(async (helper, privateKey) => {
@@ -62,12 +86,12 @@
     });
   });
 }
-export async function itSubIfWithPallet(name: string, required: string[], cb: (apis: { helper: DevUniqueHelper, privateKey: (seed: string) => IKeyringPair }) => any, opts: { only?: boolean, skip?: boolean, requiredPallets?: string[] } = {}) {
+export async function itSubIfWithPallet(name: string, required: string[], cb: (apis: { helper: DevUniqueHelper, privateKey: (seed: string) => Promise<IKeyringPair> }) => any, opts: { only?: boolean, skip?: boolean, requiredPallets?: string[] } = {}) {
   return itSub(name, cb, {requiredPallets: required, ...opts});
 }
-itSub.only = (name: string, cb: (apis: { helper: DevUniqueHelper, privateKey: (seed: string) => IKeyringPair }) => any) => itSub(name, cb, {only: true});
-itSub.skip = (name: string, cb: (apis: { helper: DevUniqueHelper, privateKey: (seed: string) => IKeyringPair }) => any) => itSub(name, cb, {skip: true});
+itSub.only = (name: string, cb: (apis: { helper: DevUniqueHelper, privateKey: (seed: string) => Promise<IKeyringPair> }) => any) => itSub(name, cb, {only: true});
+itSub.skip = (name: string, cb: (apis: { helper: DevUniqueHelper, privateKey: (seed: string) => Promise<IKeyringPair> }) => any) => itSub(name, cb, {skip: true});
 
-itSubIfWithPallet.only = (name: string, required: string[], cb: (apis: { helper: DevUniqueHelper, privateKey: (seed: string) => IKeyringPair }) => any) => itSubIfWithPallet(name, required, cb, {only: true});
-itSubIfWithPallet.skip = (name: string, required: string[], cb: (apis: { helper: DevUniqueHelper, privateKey: (seed: string) => IKeyringPair }) => any) => itSubIfWithPallet(name, required, cb, {skip: true});
+itSubIfWithPallet.only = (name: string, required: string[], cb: (apis: { helper: DevUniqueHelper, privateKey: (seed: string) => Promise<IKeyringPair> }) => any) => itSubIfWithPallet(name, required, cb, {only: true});
+itSubIfWithPallet.skip = (name: string, required: string[], cb: (apis: { helper: DevUniqueHelper, privateKey: (seed: string) => Promise<IKeyringPair> }) => any) => itSubIfWithPallet(name, required, cb, {skip: true});
 itSub.ifWithPallets = itSubIfWithPallet;