@ledgerhq/coin-canton/lib-es/bridge/prepareTransaction.test.js

Canton coin integration

import BigNumber from "bignumber.js";
import { craftTransaction, estimateFees } from "../common-logic";
import { getNextSequence } from "../network/node";
import { prepareTransaction } from "./prepareTransaction";
jest.mock("../network/node");
jest.mock("../common-logic");
describe("prepareTransaction", () => {
    let estimateFeesSpy;
    let getNextSequenceSpy;
    let craftTransactionSpy;
    beforeEach(() => {
        getNextSequenceSpy = jest.spyOn({ getNextSequence }, "getNextSequence");
        estimateFeesSpy = jest.spyOn({ estimateFees }, "estimateFees");
        craftTransactionSpy = jest.spyOn({ craftTransaction }, "craftTransaction");
        craftTransactionSpy.mockReturnValue({ serializedTransaction: "serialized" });
    });
    it("should update fee field if it's different", async () => {
        getNextSequenceSpy.mockResolvedValue(42);
        const oldTx = { fee: new BigNumber(0) };
        estimateFeesSpy.mockResolvedValue(BigInt(1));
        const newTx = await prepareTransaction({}, oldTx);
        expect(newTx.fee).toEqual(new BigNumber(1));
    });
});
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