TypeError: conn.rollbackAsync is not a function with oracledb

Hi, I am having this issue when attempting to mock a transaction with multiple inserts. I have tried doing what is suggested here https://github.com/jbrumwell/mock-knex/issues/95 however it does not seem to help, I still get the same error.

this is what I am trying to mock

import * as knex from 'knex';

export const pool: any = knex({
    acquireConnectionTimeout: 60000,
    client: 'oracledb',
    connection: {
        connectString: 'zoo',
        password: 'foo',
        user: 'bar',
    },
    debug: true,
    pool: {
        acquireTimeoutMillis: 60000, 10),
        idleTimeoutMillis: 60000,
        max: 10,
        min: 10,
    },
});

    await pool.transaction((trx: any) => {
        return Promise.all([
            row = this.insertOne(trx, id, data),
           this.insertTwo(trx, id, data),
           userData.flag ? this.insertThree(trx, id, data) : {},
           this.insertFour(trx, id, data),
           moreToDo(data),
        ]);
    })
    .catch((err: any) => {
        logger.error(err);
    });

each insert looks something like this:

    return pool('FOOBAR')
            .transacting(trx)
            .withSchema('FOO')
            .insert([
                {
                    FOO: 'BAR',
                    ID: id,
                    CREATE_DT: pool.raw('sysdate'),
                    LAST_MOD_DT: pool.raw('sysdate'),
                },
            ]);
}

this is my mock:

mockKnex.mock(pool);
const tracker = mockKnex.getTracker();
tracker.install();
    tracker.on('query', (query, step) => {
        [
            function firstQuery() {
                    {
                        ID: 1234,
                    },
                ]);
            },
            function secondQuery() {
                query.response([
                    {
                        ID: 1234,
                    },
                ]);
            },
            function thirdQuery() {
                query.response([]);
            },
            function fourthQuery() {
                query.response([]);
            },
            function fifthQuery() {
                query.response([]);
            },
        ][step - 1]();
    });
    const results = await sut.inserts(subject);
    expect(results).toEqual(foo);

This is the error:

TypeError: conn.rollbackAsync is not a function
    at Oracle_Transaction.commit (/home/foo/node_modules/knex/lib/dialects/oracledb/transaction.js:14:18)
    at Function.transactor.commit (/home/foo/node_modules/knex/lib/transaction.js:277:40)
    at /home/foo/node_modules/knex/lib/transaction.js:191:35

Im using knex 0.21.12 mock-knex 0.4.9

jbrumwell / mock-knex

TypeError: conn.rollbackAsync is not a function with oracledb #121