git.delta.rocks / unique-network / refs/commits / f4c09d673ad5

--- /dev/null
+++ b/tests/src/crefitFeesToTreasury.test.ts
@@ -0,0 +1,107 @@
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import { default as usingApi, submitTransactionAsync } from "./substrate/substrate-api";
+import { alicesPublicKey, bobsPublicKey } from "./accounts";
+import privateKey from "./substrate/privateKey";
+import { BigNumber } from 'bignumber.js';
+import { createCollectionExpectSuccess, getGenericResult } from './util/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+
+const Treasury = "5EYCAe5ijiYfyeZ2JJCGq56LmPyNRAKzpG4QkoQkkQNB5e6Z";
+const saneMinimumFee = 0.0001;
+const saneMaximumFee = 0.01;
+
+describe('integration test: Fees must be credited to Treasury:', () => {
+  it('Total issuance does not change', async () => {
+    await usingApi(async (api) => {
+      const totalBefore = new BigNumber((await api.query.balances.totalIssuance()).toString());
+
+      const alicePrivateKey = privateKey('//Alice');
+      const amount = new BigNumber(1);
+      const transfer = api.tx.balances.transfer(bobsPublicKey, amount.toFixed());
+
+      const result = getGenericResult(await submitTransactionAsync(alicePrivateKey, transfer));
+
+      const totalAfter = new BigNumber((await api.query.balances.totalIssuance()).toString());
+
+      expect(result.success).to.be.true;
+      expect(totalAfter.toFixed()).to.be.equal(totalBefore.toFixed());
+    });
+  });
+
+  it('Sender balance decreased by fee+sent amount, Treasury balance increased by fee', async () => {
+    await usingApi(async (api) => {
+      const alicePrivateKey = privateKey('//Alice');
+      const treasuryBalanceBefore = new BigNumber((await api.query.system.account(Treasury)).data.free.toString());
+      const aliceBalanceBefore = new BigNumber((await api.query.system.account(alicesPublicKey)).data.free.toString());
+
+      const amount = new BigNumber(1);
+      const transfer = api.tx.balances.transfer(bobsPublicKey, amount.toFixed());
+      const result = getGenericResult(await submitTransactionAsync(alicePrivateKey, transfer));
+
+      const treasuryBalanceAfter = new BigNumber((await api.query.system.account(Treasury)).data.free.toString());
+      const aliceBalanceAfter = new BigNumber((await api.query.system.account(alicesPublicKey)).data.free.toString());
+      const fee = aliceBalanceBefore.minus(aliceBalanceAfter).minus(amount);
+      const treasuryIncrease = treasuryBalanceAfter.minus(treasuryBalanceBefore);
+
+      expect(result.success).to.be.true;
+      expect(treasuryIncrease.toFixed()).to.be.equal(fee.toFixed());
+    });
+  });
+
+  it('Treasury balance increased by failed tx fee', async () => {
+    await usingApi(async (api) => {
+      const bobPrivateKey = privateKey('//Bob');
+      const treasuryBalanceBefore = new BigNumber((await api.query.system.account(Treasury)).data.free.toString());
+      const bobBalanceBefore = new BigNumber((await api.query.system.account(bobsPublicKey)).data.free.toString());
+
+      const badTx = api.tx.balances.setBalance(alicesPublicKey, 0, 0);
+      const result = getGenericResult(await submitTransactionAsync(bobPrivateKey, badTx));
+
+      const treasuryBalanceAfter = new BigNumber((await api.query.system.account(Treasury)).data.free.toString());
+      const bobBalanceAfter = new BigNumber((await api.query.system.account(bobsPublicKey)).data.free.toString());
+      const fee = bobBalanceBefore.minus(bobBalanceAfter);
+      const treasuryIncrease = treasuryBalanceAfter.minus(treasuryBalanceBefore);
+
+      expect(result.success).to.be.false;
+      expect(treasuryIncrease.toFixed()).to.be.equal(fee.toFixed());
+    });
+  });
+
+  it('NFT Transactions also send fees to Treasury', async () => {
+    await usingApi(async (api) => {
+      const treasuryBalanceBefore = new BigNumber((await api.query.system.account(Treasury)).data.free.toString());
+      const aliceBalanceBefore = new BigNumber((await api.query.system.account(alicesPublicKey)).data.free.toString());
+
+      await createCollectionExpectSuccess('A', 'B', 'C', 'NFT');
+
+      const treasuryBalanceAfter = new BigNumber((await api.query.system.account(Treasury)).data.free.toString());
+      const aliceBalanceAfter = new BigNumber((await api.query.system.account(alicesPublicKey)).data.free.toString());
+      const fee = aliceBalanceBefore.minus(aliceBalanceAfter);
+      const treasuryIncrease = treasuryBalanceAfter.minus(treasuryBalanceBefore);
+
+      expect(treasuryIncrease.toFixed()).to.be.equal(fee.toFixed());
+    });
+  });
+
+  it('Fees are sane', async () => {
+    await usingApi(async (api) => {
+      const treasuryBalanceBefore = new BigNumber((await api.query.system.account(Treasury)).data.free.toString());
+      const aliceBalanceBefore = new BigNumber((await api.query.system.account(alicesPublicKey)).data.free.toString());
+
+      await createCollectionExpectSuccess('A', 'B', 'C', 'NFT');
+
+      const treasuryBalanceAfter = new BigNumber((await api.query.system.account(Treasury)).data.free.toString());
+      const aliceBalanceAfter = new BigNumber((await api.query.system.account(alicesPublicKey)).data.free.toString());
+      const fee = aliceBalanceBefore.minus(aliceBalanceAfter);
+      const treasuryIncrease = treasuryBalanceAfter.minus(treasuryBalanceBefore);
+
+      expect(fee.dividedBy(1e15).toNumber()).to.be.lessThan(0.01);
+      expect(fee.dividedBy(1e15).toNumber()).to.be.greaterThan(0.0001);
+    });
+  });
+
+});
+