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import chai, { expect } from "chai";
import chaiBN from "chai-bn";
import BN from "bn.js";
chai.use(chaiBN(BN));
import * as fs from "fs";
import { Cell, toNano } from "ton";
import { SmartContract } from "ton-contract-executor";
import * as main from "../contracts/main";
import { internalMessage, randomAddress, setBalance } from "./helpers";
describe("Deposit and withdraw tests", () => {
let contract: SmartContract;
beforeEach(async () => {
contract = await SmartContract.fromCell(
Cell.fromBoc(fs.readFileSync("build/main.cell"))[0], // code cell from build output
main.data({
ownerAddress: randomAddress("owner"),
counter: 17,
})
);
});
it("should get balance", async () => {
setBalance(contract, toNano(37));
const call = await contract.invokeGetMethod("balance", []);
expect(call.result[0]).to.be.bignumber.equal(toNano(37));
});
it("should allow the owner to withdraw when balance is high", async () => {
setBalance(contract, toNano(37));
const send = await contract.sendInternalMessage(
internalMessage({
from: randomAddress("owner"),
body: main.withdraw({ withdrawAmount: toNano(20) }),
})
);
expect(send.type).to.equal("success");
expect(send.actionList).to.have.lengthOf(1);
const resultMessage = (send.actionList[0] as any)?.message?.info;
expect(resultMessage?.dest?.equals(randomAddress("owner"))).to.equal(true);
expect(resultMessage?.value?.coins).to.be.bignumber.equal(toNano(20));
});
it("should prevent others from withdrawing when balance is high", async () => {
setBalance(contract, toNano(37));
const send = await contract.sendInternalMessage(
internalMessage({
from: randomAddress("notowner"),
body: main.withdraw({ withdrawAmount: toNano(20) }),
})
);
expect(send.type).to.equal("failed");
expect(send.exit_code).to.equal(102); // access_denied in contracts/imports/constants.fc
});
it("should prevent the owner to withdraw when balance is low", async () => {
setBalance(contract, toNano(10));
const send = await contract.sendInternalMessage(
internalMessage({
from: randomAddress("owner"),
body: main.withdraw({ withdrawAmount: toNano(20) }),
})
);
expect(send.type).to.equal("failed");
expect(send.exit_code).to.equal(103); // insufficient_balance in contracts/imports/constants.fc
});
it("should leave enough balance for rent", async () => {
setBalance(contract, toNano(20));
const send = await contract.sendInternalMessage(
internalMessage({
from: randomAddress("owner"),
body: main.withdraw({ withdrawAmount: toNano(20) }),
})
);
expect(send.type).to.equal("success");
expect(send.actionList).to.have.lengthOf(1);
const resultMessage = (send.actionList[0] as any)?.message?.info;
expect(resultMessage?.dest?.equals(randomAddress("owner"))).to.equal(true);
expect(resultMessage?.value?.coins).to.be.bignumber.equal(toNano(20).sub(toNano(0.01))); // min_tons_for_storage in contracts/imports/constants.fc
});
});