transaction.test.js
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'use strict';
const chai = require('chai');
const expect = chai.expect;
const sinon = require('sinon');
const Support = require('./support');
const Sequelize = Support.Sequelize;
const dialect = Support.getTestDialect();
const current = Support.sequelize;
describe('Transaction', () => {
before(function() {
this.stub = sinon.stub(current, 'query').resolves({});
this.stubConnection = sinon.stub(current.connectionManager, 'getConnection')
.resolves({
uuid: 'ssfdjd-434fd-43dfg23-2d',
close() {}
});
this.stubRelease = sinon.stub(current.connectionManager, 'releaseConnection')
.resolves();
});
beforeEach(function() {
this.stub.resetHistory();
this.stubConnection.resetHistory();
this.stubRelease.resetHistory();
});
after(function() {
this.stub.restore();
this.stubConnection.restore();
});
it('should run auto commit query only when needed', async function() {
const expectations = {
all: [
'START TRANSACTION;'
],
sqlite: [
'BEGIN DEFERRED TRANSACTION;'
],
mssql: [
'BEGIN TRANSACTION;'
]
};
await current.transaction(async () => {
expect(this.stub.args.map(arg => arg[0])).to.deep.equal(expectations[dialect] || expectations.all);
});
});
it('should set isolation level correctly', async function() {
const expectations = {
all: [
'SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;',
'START TRANSACTION;'
],
postgres: [
'START TRANSACTION;',
'SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;'
],
sqlite: [
'BEGIN DEFERRED TRANSACTION;',
'PRAGMA read_uncommitted = ON;'
],
mssql: [
'BEGIN TRANSACTION;'
]
};
await current.transaction({ isolationLevel: Sequelize.Transaction.ISOLATION_LEVELS.READ_UNCOMMITTED }, async () => {
expect(this.stub.args.map(arg => arg[0])).to.deep.equal(expectations[dialect] || expectations.all);
});
});
});