@mysql/xdevapi/test/functional/default/session/savepoints.js

MySQL Connector/Node.js - A Node.js driver for MySQL using the X Protocol and X DevAPI.

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 * This program is free software; you can redistribute it and/or modify
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 * published by the Free Software Foundation.
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'use strict';

/* eslint-env node, mocha */

const errors = require('../../../../lib/constants/errors');
const expect = require('chai').expect;
const fixtures = require('../../../fixtures');

describe('savepoints within transactions', () => {
    let session;

    const baseConfig = { schema: undefined };

    beforeEach('create session', () => {
        return fixtures.createSession(baseConfig)
            .then(s => {
                session = s;
            });
    });

    afterEach('close session', () => {
        return session.close();
    });

    it('creates savepoint with a generated name if not provided', () => {
        return session.startTransaction()
            .then(() => session.setSavepoint())
            .then(actual => expect(actual).to.be.a('string').and.not.be.empty);
    });

    it('creates a savepoint with the given name', () => {
        return session.startTransaction()
            .then(() => session.setSavepoint('foo'))
            .then(actual => expect(actual).to.equal('foo'));
    });

    it('does not create a savepoint with empty string', () => {
        return session.startTransaction()
            .then(() => session.setSavepoint(''))
            .then(() => {
                expect.fail();
            })
            .catch(err => {
                return expect(err.message).to.equal(errors.MESSAGES.ER_DEVAPI_BAD_SAVEPOINT_NAME);
            });
    });

    it('releases a valid savepoint', () => {
        return session.startTransaction()
            .then(() => session.setSavepoint('foo'))
            .then(point => session.releaseSavepoint(point));
    });

    it('fails to release a savepoint identified with empty string', () => {
        return session.startTransaction()
            .then(() => session.setSavepoint('foo'))
            .then(() => session.releaseSavepoint(''))
            .then(() => {
                expect.fail();
            })
            .catch(err => {
                return expect(err.message).to.equal(errors.MESSAGES.ER_DEVAPI_BAD_SAVEPOINT_NAME);
            });
    });

    it('fails to release an non-matching savepoint', () => {
        return session.startTransaction()
            .then(() => session.setSavepoint('foo'))
            .then(() => session.releaseSavepoint('s'))
            .then(() => {
                expect.fail();
            })
            .catch(err => {
                expect(err.info).to.include.keys('code');
                return expect(err.info.code).to.equal(errors.ER_SP_DOES_NOT_EXIST);
            });
    });

    it('rolls back to a valid savepoint', () => {
        return session.startTransaction()
            .then(() => session.setSavepoint('foo'))
            .then(point => session.rollbackTo(point));
    });

    it('fails to rollback to a savepoint identified by an empty string', () => {
        return session.startTransaction()
            .then(() => session.setSavepoint('foo'))
            .then(() => session.rollbackTo(''))
            .then(() => {
                expect.fail();
            })
            .catch(err => {
                return expect(err.message).to.equal(errors.MESSAGES.ER_DEVAPI_BAD_SAVEPOINT_NAME);
            });
    });

    it('fails to rollback to a non-matching savepoint', () => {
        return session.startTransaction()
            .then(() => session.setSavepoint('foo'))
            .then(() => session.rollbackTo('s'))
            .then(() => {
                expect.fail();
            })
            .catch(err => {
                expect(err.info).to.include.keys('code');
                return expect(err.info.code).to.equal(errors.ER_SP_DOES_NOT_EXIST);
            });
    });
});