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mongo_client.test.js
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('use strict');
import { inspect } from 'util';
const os = require('os');
const fs = require('fs');
const { expect } = require('chai');
const { getSymbolFrom } = require('../tools/utils');
const { parseOptions, resolveSRVRecord } = require('../mongodb');
const { ReadConcern } = require('../mongodb');
const { WriteConcern } = require('../mongodb');
const { ReadPreference } = require('../mongodb');
const { MongoCredentials } = require('../mongodb');
const {
MongoClient,
MongoParseError,
ServerApiVersion,
MongoAPIError,
MongoInvalidArgumentError
} = require('../mongodb');
const { MongoLogger } = require('../mongodb');
// eslint-disable-next-line no-restricted-modules
const { SeverityLevel, MongoLoggableComponent } = require('../../src/mongo_logger');
const sinon = require('sinon');
const { Writable } = require('stream');
describe('MongoClient', function () {
it('MongoClient should always freeze public options', function () {
const client = new MongoClient('mongodb://localhost:27017');
expect(client.options).to.be.frozen;
});
it('programmatic options should override URI options', function () {
const options = parseOptions('mongodb://localhost:27017/test?directConnection=true', {
directConnection: false
});
expect(options.directConnection).to.be.false;
expect(options.hosts).has.length(1);
expect(options.dbName).to.equal('test');
expect(options.prototype).to.not.exist;
});
it('should rename tls options correctly', function () {
const filename = `${os.tmpdir()}/tmp.pem`;
fs.closeSync(fs.openSync(filename, 'w'));
const options = parseOptions('mongodb://localhost:27017/?ssl=true', {
tlsCertificateKeyFile: filename,
tlsCAFile: filename,
tlsCRLFile: filename,
tlsCertificateKeyFilePassword: 'tlsCertificateKeyFilePassword'
});
fs.unlinkSync(filename);
/*
* If set TLS enabled, equivalent to setting the ssl option.
*
* ### Additional options:
*
* | nodejs native option | driver spec equivalent option name | driver option type |
* |:----------------------|:----------------------------------------------|:-------------------|
* | `ca` | `tlsCAFile` | `string` |
* | `crl` | N/A | `string` |
* | `key` | `tlsCertificateKeyFile` | `string` |
* | `passphrase` | `tlsCertificateKeyFilePassword` | `string` |
* | `rejectUnauthorized` | `tlsAllowInvalidCertificates` | `boolean` |
* | `checkServerIdentity` | `tlsAllowInvalidHostnames` | `boolean` |
* | see note below | `tlsInsecure` | `boolean` |
*
*/
expect(options).to.not.have.property('tlsCertificateKeyFilePassword');
expect(options).to.not.have.property('key');
expect(options).to.not.have.property('ca');
expect(options).to.not.have.property('cert');
expect(options).to.have.property('tlsCertificateKeyFile', filename);
expect(options).to.have.property('tlsCAFile', filename);
expect(options).to.have.property('tlsCRLFile', filename);
expect(options).has.property('passphrase', 'tlsCertificateKeyFilePassword');
expect(options).has.property('tls', true);
});
const ALL_OPTIONS = {
appName: 'cats',
auth: { username: 'username', password: 'password' },
authMechanism: 'SCRAM-SHA-1',
authMechanismProperties: { SERVICE_NAME: 'service name here' },
authSource: 'refer to dbName',
autoEncryption: { bypassAutoEncryption: true },
checkKeys: true,
checkServerIdentity: false,
compressors: 'snappy,zlib',
connectTimeoutMS: 123,
directConnection: true,
dbName: 'test',
driverInfo: { name: 'MyDriver', platform: 'moonOS' },
family: 6,
fieldsAsRaw: { rawField: true },
forceServerObjectId: true,
fsync: true,
heartbeatFrequencyMS: 3,
ignoreUndefined: false,
j: true,
journal: false,
localThresholdMS: 3,
maxConnecting: 5,
maxIdleTimeMS: 3,
maxPoolSize: 2,
maxStalenessSeconds: 3,
minInternalBufferSize: 0,
minPoolSize: 1,
monitorCommands: true,
noDelay: true,
pkFactory: {
createPk() {
return 'very unique';
}
},
promoteBuffers: true,
promoteLongs: false,
promoteValues: false,
raw: true,
readConcern: new ReadConcern(ReadConcern.AVAILABLE),
readConcernLevel: ReadConcern.LINEARIZABLE,
readPreference: ReadPreference.primary,
readPreferenceTags: [{ loc: 'ny' }],
replicaSet: 'phil',
retryReads: false,
retryWrites: true,
serializeFunctions: true,
serverSelectionTimeoutMS: 3,
servername: 'some tls option',
serverApi: { version: '1' },
socketTimeoutMS: 3,
ssl: true,
tls: true,
tlsAllowInvalidCertificates: true,
tlsAllowInvalidHostnames: true,
tlsCertificateKeyFilePassword: 'tls-pass',
w: 'majority',
waitQueueTimeoutMS: 3,
writeConcern: new WriteConcern(2),
wtimeout: 5,
wtimeoutMS: 6,
zlibCompressionLevel: 2
};
it('should parse all options from the options object', function () {
const options = parseOptions('mongodb://localhost:27017/', ALL_OPTIONS);
// Check consolidated options
expect(options).has.property('writeConcern');
expect(options.writeConcern).has.property('w', 2);
expect(options.writeConcern).has.property('j', true);
});
const allURIOptions =
'mongodb://myName@localhost:27017/test?' +
[
'appname=myBestApp',
'authMechanism=scram-sha-1',
'authMechanismProperties=opt1:val1',
'authSource=authDb',
'compressors=zlib,snappy',
'connectTimeoutMS=2',
'directConnection=true',
'heartbeatFrequencyMS=2',
'journal=true',
'localThresholdMS=2',
'maxConnecting=5',
'maxIdleTimeMS=2',
'maxPoolSize=4',
'maxStalenessSeconds=2',
'minPoolSize=2',
'readConcernLevel=local',
'readPreference=nearest',
'readPreferenceTags=dc:ny,rack:1',
'replicaSet=phil',
'retryReads=true',
'retryWrites=true',
'serverSelectionTimeoutMS=2',
'socketTimeoutMS=2',
'ssl=true',
'tls=true',
'tlsAllowInvalidCertificates=true',
'tlsAllowInvalidHostnames=true',
'tlsCertificateKeyFilePassword=PASSWORD',
'w=majority',
'waitQueueTimeoutMS=2',
'wTimeoutMS=2',
'zlibCompressionLevel=2'
].join('&');
it('should parse all options from the URI string', function () {
const options = parseOptions(allURIOptions);
expect(options).has.property('zlibCompressionLevel', 2);
expect(options).has.property('writeConcern');
expect(options.writeConcern).has.property('w', 'majority');
expect(options.writeConcern).has.property('wtimeout', 2);
});
it('should ignore undefined and null values in the options object', function () {
const options = parseOptions('mongodb://localhost:27017/', {
maxPoolSize: null,
servername: undefined,
randomopt: null,
otherrandomopt: undefined
});
// test valid option key with default value
expect(options).to.have.property('maxPoolSize', 100);
// test valid option key without default value
expect(options).not.to.have.property('servername');
// test invalid option keys that are null/undefined
expect(options).not.to.have.property('randomopt');
expect(options).not.to.have.property('otherrandomopt');
});
it('should throw an error on unrecognized keys in the options object if they are defined', function () {
expect(() =>
parseOptions('mongodb://localhost:27017/', {
randomopt: 'test'
})
).to.throw(MongoParseError, 'option randomopt is not supported');
expect(() =>
parseOptions('mongodb://localhost:27017/', {
randomopt: 'test',
randomopt2: 'test'
})
).to.throw(MongoParseError, 'options randomopt, randomopt2 are not supported');
});
it('srvHost saved to options for later resolution', function () {
const options = parseOptions('mongodb+srv://server.example.com/');
expect(options).has.property('srvHost', 'server.example.com');
expect(options).has.property('tls', true);
});
it('ssl= can be used to set tls=false', function () {
const options = parseOptions('mongodb+srv://server.example.com/?ssl=false');
expect(options).has.property('srvHost', 'server.example.com');
expect(options).has.property('tls', false);
});
it('tls= can be used to set tls=false', function () {
const options = parseOptions('mongodb+srv://server.example.com/?tls=false');
expect(options).has.property('srvHost', 'server.example.com');
expect(options).has.property('tls', false);
});
it('ssl= can be used to set tls=true', function () {
const options = parseOptions('mongodb+srv://server.example.com/?ssl=true');
expect(options).has.property('srvHost', 'server.example.com');
expect(options).has.property('tls', true);
});
it('tls= can be used to set tls=true', function () {
const options = parseOptions('mongodb+srv://server.example.com/?tls=true');
expect(options).has.property('srvHost', 'server.example.com');
expect(options).has.property('tls', true);
});
it('supports ReadPreference option in url', function () {
const options = parseOptions('mongodb://localhost/?readPreference=nearest');
expect(options.readPreference).to.be.an.instanceof(ReadPreference);
expect(options.readPreference.mode).to.equal('nearest');
});
it('supports ReadPreference option in object plain', function () {
const options = parseOptions('mongodb://localhost', {
readPreference: { mode: 'nearest', hedge: { enabled: true } }
});
expect(options.readPreference).to.be.an.instanceof(ReadPreference);
expect(options.readPreference.mode).to.equal('nearest');
expect(options.readPreference.hedge).to.include({ enabled: true });
});
it('supports ReadPreference option in object proper class', function () {
const tag = { rack: 1 };
const options = parseOptions('mongodb://localhost', {
readPreference: new ReadPreference('nearest', [tag], { maxStalenessSeconds: 20 })
});
expect(options.readPreference).to.be.an.instanceof(ReadPreference);
expect(options.readPreference.mode).to.equal('nearest');
expect(options.readPreference.tags).to.be.an('array').that.includes(tag);
expect(options.readPreference.maxStalenessSeconds).to.equal(20);
// maxStalenessSeconds sets the minWireVersion
expect(options.readPreference.minWireVersion).to.be.at.least(5);
});
it('should throw when given a readpreference options with an unsupported type', () => {
expect(() => new MongoClient('mongodb://blah', { readPreference: 34 })).to.throw(
MongoParseError,
/Unknown ReadPreference value/
);
// Passing readPreference in URI will always be string
});
it('supports WriteConcern option in url', function () {
const options = parseOptions('mongodb://localhost/?w=3');
expect(options.writeConcern).to.be.an.instanceof(WriteConcern);
expect(options.writeConcern.w).to.equal(3);
});
it('supports WriteConcern option in object plain', function () {
const options = parseOptions('mongodb://localhost', {
writeConcern: { w: 'majority', wtimeoutMS: 300 }
});
expect(options.writeConcern).to.be.an.instanceof(WriteConcern);
expect(options.writeConcern.w).to.equal('majority');
expect(options.writeConcern.wtimeout).to.equal(300);
});
it('supports WriteConcern option in object proper class', function () {
const options = parseOptions('mongodb://localhost', {
writeConcern: new WriteConcern(5, 200, true)
});
expect(options.writeConcern).to.be.an.instanceof(WriteConcern);
expect(options.writeConcern.w).to.equal(5);
expect(options.writeConcern.wtimeout).to.equal(200);
expect(options.writeConcern.j).to.equal(true);
});
it('supports ReadConcern option in url', function () {
const options = parseOptions('mongodb://localhost/?readConcernLevel=available');
expect(options.readConcern).to.be.an.instanceof(ReadConcern);
expect(options.readConcern.level).to.equal('available');
});
it('supports ReadConcern option in object plain', function () {
const options = parseOptions('mongodb://localhost', {
readConcern: { level: 'linearizable' }
});
expect(options.readConcern).to.be.an.instanceof(ReadConcern);
expect(options.readConcern.level).to.equal('linearizable');
});
it('supports ReadConcern option in object proper class', function () {
const options = parseOptions('mongodb://localhost', {
readConcern: new ReadConcern('snapshot')
});
expect(options.readConcern).to.be.an.instanceof(ReadConcern);
expect(options.readConcern.level).to.equal('snapshot');
});
it('supports Credentials option in url', function () {
const options = parseOptions('mongodb://USERNAME:PASSWORD@localhost/');
expect(options.credentials).to.be.an.instanceof(MongoCredentials);
expect(options.credentials.username).to.equal('USERNAME');
expect(options.credentials.password).to.equal('PASSWORD');
expect(options.credentials.source).to.equal('admin');
});
it('supports Credentials option in url with db', function () {
const options = parseOptions('mongodb://USERNAME:PASSWORD@localhost/foo');
expect(options.credentials).to.be.an.instanceof(MongoCredentials);
expect(options.credentials.username).to.equal('USERNAME');
expect(options.credentials.password).to.equal('PASSWORD');
expect(options.credentials.source).to.equal('foo');
});
it('supports Credentials option in auth object plain', function () {
const options = parseOptions('mongodb://localhost/', {
auth: { username: 'USERNAME', password: 'PASSWORD' }
});
expect(options.credentials).to.be.an.instanceof(MongoCredentials);
expect(options.credentials.username).to.equal('USERNAME');
expect(options.credentials.password).to.equal('PASSWORD');
});
it('transforms tlsAllowInvalidCertificates and tlsAllowInvalidHostnames correctly', function () {
const optionsTrue = parseOptions('mongodb://localhost/', {
tlsAllowInvalidCertificates: true,
tlsAllowInvalidHostnames: true
});
expect(optionsTrue.rejectUnauthorized).to.equal(false);
expect(optionsTrue.checkServerIdentity).to.be.a('function');
expect(optionsTrue.checkServerIdentity()).to.equal(undefined);
const optionsFalse = parseOptions('mongodb://localhost/', {
tlsAllowInvalidCertificates: false,
tlsAllowInvalidHostnames: false
});
expect(optionsFalse.rejectUnauthorized).to.equal(true);
expect(optionsFalse.checkServerIdentity).to.equal(undefined);
const optionsUndefined = parseOptions('mongodb://localhost/');
expect(optionsUndefined.rejectUnauthorized).to.equal(undefined);
expect(optionsUndefined.checkServerIdentity).to.equal(undefined);
});
describe('[tls certificate handling]', () => {
before(() => {
fs.writeFileSync('testCertKey.pem', 'cert key');
fs.writeFileSync('testKey.pem', 'test key');
fs.writeFileSync('testCert.pem', 'test cert');
});
after(() => {
fs.unlinkSync('testCertKey.pem');
fs.unlinkSync('testKey.pem');
fs.unlinkSync('testCert.pem');
});
it('correctly sets the cert and key if only tlsCertificateKeyFile is provided', function () {
const optsFromObject = parseOptions('mongodb://localhost/', {
tlsCertificateKeyFile: 'testCertKey.pem'
});
expect(optsFromObject).to.have.property('tlsCertificateKeyFile', 'testCertKey.pem');
const optsFromUri = parseOptions('mongodb://localhost?tlsCertificateKeyFile=testCertKey.pem');
expect(optsFromUri).to.have.property('tlsCertificateKeyFile', 'testCertKey.pem');
});
});
it('throws an error if tls and ssl parameters are not all set to the same value', () => {
expect(() => parseOptions('mongodb://localhost?tls=true&ssl=false')).to.throw(
'All values of tls/ssl must be the same.'
);
expect(() => parseOptions('mongodb://localhost?tls=false&ssl=true')).to.throw(
'All values of tls/ssl must be the same.'
);
});
it('correctly sets tls if tls and ssl parameters are all set to the same value', () => {
expect(parseOptions('mongodb://localhost?ssl=true&tls=true')).to.have.property('tls', true);
expect(parseOptions('mongodb://localhost?ssl=false&tls=false')).to.have.property('tls', false);
});
it('transforms tlsInsecure correctly', function () {
const optionsTrue = parseOptions('mongodb://localhost/', {
tlsInsecure: true
});
expect(optionsTrue.rejectUnauthorized).to.equal(false);
expect(optionsTrue.checkServerIdentity).to.be.a('function');
expect(optionsTrue.checkServerIdentity()).to.equal(undefined);
const optionsFalse = parseOptions('mongodb://localhost/', {
tlsInsecure: false
});
expect(optionsFalse.rejectUnauthorized).to.equal(true);
expect(optionsFalse.checkServerIdentity).to.equal(undefined);
const optionsUndefined = parseOptions('mongodb://localhost/');
expect(optionsUndefined.rejectUnauthorized).to.equal(undefined);
expect(optionsUndefined.checkServerIdentity).to.equal(undefined);
});
describe('compressors', function () {
it('can be set when passed in as an array in the options object', function () {
const clientViaOpt = new MongoClient('mongodb://localhost', {
compressors: ['zlib', 'snappy']
});
expect(clientViaOpt.options).to.have.property('compressors').deep.equal(['zlib', 'snappy']);
});
it('can be set when passed in as a comma-delimited string in the options object or URI', function () {
const clientViaOpt = new MongoClient('mongodb://localhost', {
compressors: 'zlib,snappy'
});
const clientViaUri = new MongoClient('mongodb://localhost?compressors=zlib,snappy');
expect(clientViaOpt.options).to.have.property('compressors').deep.equal(['zlib', 'snappy']);
expect(clientViaUri.options).to.have.property('compressors').deep.equal(['zlib', 'snappy']);
});
it('should validate that a string or an array of strings is provided as input', function () {
expect(
() =>
new MongoClient('mongodb://localhost', {
compressors: { zlib: true }
})
).to.throw(/^compressors must be an array or a comma-delimited list of strings/);
});
it('should throw an error if an unrecognized compressor is specified', function () {
const expectedErrRegex = /not a valid compression mechanism/;
expect(
() =>
new MongoClient('mongodb://localhost', {
compressors: ['invalid']
})
).to.throw(expectedErrRegex);
expect(
() =>
new MongoClient('mongodb://localhost', {
compressors: 'invalid'
})
).to.throw(expectedErrRegex);
expect(() => new MongoClient('mongodb://localhost?compressors=invalid')).to.throw(
expectedErrRegex
);
});
});
describe('serverApi', function () {
it('is supported as a client option when it is a valid ServerApiVersion string', function () {
const validVersions = Object.values(ServerApiVersion);
expect(validVersions.length).to.be.at.least(1);
for (const version of validVersions) {
const result = parseOptions('mongodb://localhost/', {
serverApi: version
});
expect(result).to.have.property('serverApi').deep.equal({ version });
}
});
it('is supported as a client option when it is an object with a valid version property', function () {
const validVersions = Object.values(ServerApiVersion);
expect(validVersions.length).to.be.at.least(1);
for (const version of validVersions) {
const result = parseOptions('mongodb://localhost/', {
serverApi: { version }
});
expect(result).to.have.property('serverApi').deep.equal({ version });
}
});
it('is not supported as a client option when it is an invalid string', function () {
expect(() =>
parseOptions('mongodb://localhost/', {
serverApi: 'bad'
})
).to.throw(/^Invalid server API version=bad;/);
});
it('is not supported as a client option when it is a number', function () {
expect(() =>
parseOptions('mongodb://localhost/', {
serverApi: 1
})
).to.throw(/^Invalid `serverApi` property;/);
});
it('is not supported as a client option when it is an object without a specified version', function () {
expect(() =>
parseOptions('mongodb://localhost/', {
serverApi: {}
})
).to.throw(/^Invalid `serverApi` property;/);
});
it('is not supported as a client option when it is an object with an invalid specified version', function () {
expect(() =>
parseOptions('mongodb://localhost/', {
serverApi: { version: 1 }
})
).to.throw(/^Invalid server API version=1;/);
expect(() =>
parseOptions('mongodb://localhost/', {
serverApi: { version: 'bad' }
})
).to.throw(/^Invalid server API version=bad;/);
});
it('is not supported as a URI option even when it is a valid ServerApiVersion string', function () {
expect(() => parseOptions('mongodb://localhost/?serverApi=1')).to.throw(
'URI cannot contain `serverApi`, it can only be passed to the client'
);
});
});
describe('default options', () => {
const doNotCheckEq = Symbol('do not check equality');
const KNOWN_DEFAULTS = [
['connecttimeoutms', 30000],
['directconnection', false],
['forceserverobjectid', false],
['heartbeatfrequencyms', 10000],
['localthresholdms', 15],
['maxidletimems', 0],
['maxpoolsize', 100],
['minpoolsize', 0],
['minheartbeatfrequencyms', 500],
['monitorcommands', false], // NODE-3513
['nodelay', true],
['raw', false],
['retryreads', true],
['retrywrites', true],
['serverselectiontimeoutms', 30000],
['sockettimeoutms', 0],
['waitqueuetimeoutms', 0],
['zlibcompressionlevel', 0],
// map to objects that are not worth checking deep equality
['compressors', doNotCheckEq],
['readpreference', doNotCheckEq],
['pkfactory', doNotCheckEq]
];
const findMatchingKey = (o, searchKey) => {
return Object.keys(o).filter(key => {
return key.toLowerCase() === searchKey;
})[0];
};
it(`should define known defaults in client.options`, () => {
const client = new MongoClient('mongodb://localhost');
const clientOptions = client.options;
for (const [optionName, value] of KNOWN_DEFAULTS) {
const camelCaseName = findMatchingKey(clientOptions, optionName);
expect(camelCaseName, `did not find a camelcase match for ${optionName}`).to.be.a('string');
expect(clientOptions).to.have.property(camelCaseName);
if (value !== doNotCheckEq) {
expect(clientOptions).to.have.property(camelCaseName).that.deep.equals(value);
}
}
});
it('set monitorCommands to false (NODE-3513)', function () {
const client = new MongoClient('mongodb://localhost');
const clientOptions = client.options;
expect(clientOptions).to.have.property('monitorCommands', false);
expect(client.s.options).to.have.property('monitorCommands', false);
expect(client).to.have.property('monitorCommands', false);
const optionsSym = getSymbolFrom(client, 'options');
expect(client[optionsSym]).to.have.property('monitorCommands', false);
});
it('respects monitorCommands option passed in', function () {
const clientViaOpt = new MongoClient('mongodb://localhost', { monitorCommands: true });
const clientViaUri = new MongoClient('mongodb://localhost?monitorCommands=true');
const testTable = [
[clientViaOpt, clientViaOpt.options],
[clientViaUri, clientViaUri.options]
];
for (const [client, clientOptions] of testTable) {
expect(clientOptions).to.have.property('monitorCommands', true);
expect(client.s.options).to.have.property('monitorCommands', true);
expect(client).to.have.property('monitorCommands', true);
const optionsSym = getSymbolFrom(client, 'options');
expect(client[optionsSym]).to.have.property('monitorCommands', true);
}
});
});
context('when loadBalanced=true is in the URI', function () {
it('sets the option', function () {
const options = parseOptions('mongodb://a/?loadBalanced=true');
expect(options.loadBalanced).to.be.true;
});
it('errors with multiple hosts', function () {
const parse = () => {
parseOptions('mongodb://a,b/?loadBalanced=true');
};
expect(parse).to.throw(/single host/);
});
it('errors with a replicaSet option', function () {
const parse = () => {
parseOptions('mongodb://a/?loadBalanced=true&replicaSet=test');
};
expect(parse).to.throw(/replicaSet/);
});
it('errors with a directConnection option', function () {
const parse = () => {
parseOptions('mongodb://a/?loadBalanced=true&directConnection=true');
};
expect(parse).to.throw(/directConnection/);
});
});
context('when loadBalanced is in the options object', function () {
it('errors when the option is true', function () {
const parse = () => {
parseOptions('mongodb://a/', { loadBalanced: true });
};
expect(parse).to.throw(/URI/);
});
it('errors when the option is false', function () {
const parse = () => {
parseOptions('mongodb://a/', { loadBalanced: false });
};
expect(parse).to.throw(/URI/);
});
});
it('srvMaxHosts > 0 cannot be combined with LB or ReplicaSet', () => {
expect(() => {
new MongoClient('mongodb+srv://localhost?srvMaxHosts=2&replicaSet=repl');
}).to.throw(MongoParseError, 'Cannot use srvMaxHosts option with replicaSet');
expect(() => {
new MongoClient('mongodb+srv://localhost?srvMaxHosts=2&loadBalanced=true');
}).to.throw(MongoParseError, 'Cannot limit srv hosts with loadBalanced enabled');
expect(() => {
new MongoClient('mongodb+srv://localhost', { srvMaxHosts: 2, replicaSet: 'blah' });
}).to.throw(MongoParseError, 'Cannot use srvMaxHosts option with replicaSet');
expect(() => {
new MongoClient('mongodb+srv://localhost?loadBalanced=true', { srvMaxHosts: 2 });
}).to.throw(MongoParseError, 'Cannot limit srv hosts with loadBalanced enabled');
// These should not throw.
new MongoClient('mongodb+srv://localhost?srvMaxHosts=0&replicaSet=repl');
new MongoClient('mongodb+srv://localhost', { srvMaxHosts: 0, replicaSet: 'blah' });
new MongoClient('mongodb+srv://localhost?srvMaxHosts=0&loadBalanced=true');
new MongoClient('mongodb+srv://localhost?loadBalanced=true', { srvMaxHosts: 0 });
});
it('srvServiceName and srvMaxHosts cannot be used on a non-srv connection string', () => {
expect(() => {
new MongoClient('mongodb://localhost?srvMaxHosts=2');
}).to.throw(MongoParseError);
expect(() => {
new MongoClient('mongodb://localhost?srvMaxHosts=0');
}).to.throw(MongoParseError);
expect(() => {
new MongoClient('mongodb://localhost', { srvMaxHosts: 0 });
}).to.throw(MongoParseError);
expect(() => {
new MongoClient('mongodb://localhost?srvServiceName=abc');
}).to.throw(MongoParseError);
expect(() => {
new MongoClient('mongodb://localhost', { srvMaxHosts: 2 });
}).to.throw(MongoParseError);
expect(() => {
new MongoClient('mongodb://localhost', { srvServiceName: 'abc' });
}).to.throw(MongoParseError);
});
it('srvServiceName should error if it is too long', async () => {
const options = parseOptions('mongodb+srv://localhost.a.com', {
srvServiceName: 'a'.repeat(255)
});
const error = await resolveSRVRecord(options).catch(error => error);
expect(error).to.have.property('code', 'EBADNAME');
});
it('srvServiceName should not error if it is greater than 15 characters as long as the DNS query limit is not surpassed', async () => {
const options = parseOptions('mongodb+srv://localhost.a.com', {
srvServiceName: 'a'.repeat(16)
});
const error = await resolveSRVRecord(options).catch(error => error);
// Nothing wrong with the name, just DNE
expect(error).to.have.property('code', 'ENOTFOUND');
});
describe('dbName and authSource', () => {
describe('in the URI', () => {
it('should set the database name to the dbName in the uri', () => {
const client = new MongoClient('mongodb://u:p@host/myDb');
const db = client.db();
expect(db).to.have.property('databaseName', 'myDb');
expect(client).to.have.nested.property('options.credentials.source', 'myDb');
});
it('should set the database name to the uri pathname and respect the authSource option', () => {
const client = new MongoClient('mongodb://u:p@host/myDb?authSource=myAuthDb');
const db = client.db();
expect(db).to.have.property('databaseName', 'myDb');
expect(client).to.have.nested.property('options.credentials.source', 'myAuthDb');
});
it('should set the database name to the uri pathname and respect the authSource option in options object', () => {
const client = new MongoClient('mongodb://u:p@host/myDb', { authSource: 'myAuthDb' });
const db = client.db();
expect(db).to.have.property('databaseName', 'myDb');
expect(client).to.have.nested.property('options.credentials.source', 'myAuthDb');
});
});
describe('in the options object', () => {
it('should set the database name to the dbName in the options object', () => {
const client = new MongoClient('mongodb://u:p@host', { dbName: 'myDb' });
const db = client.db();
expect(db).to.have.property('databaseName', 'myDb');
expect(client).to.have.nested.property('options.credentials.source', 'myDb');
});
it('should set the database name to dbName and respect the authSource option', () => {
const client = new MongoClient('mongodb://u:p@host?authSource=myAuthDb', {
dbName: 'myDb'
});
const db = client.db();
expect(db).to.have.property('databaseName', 'myDb');
expect(client).to.have.nested.property('options.credentials.source', 'myAuthDb');
});
it('should set the database name to dbName and respect the authSource option in options object', () => {
const client = new MongoClient('mongodb://u:p@host', {
dbName: 'myDb',
authSource: 'myAuthDb'
});
const db = client.db();
expect(db).to.have.property('databaseName', 'myDb');
expect(client).to.have.nested.property('options.credentials.source', 'myAuthDb');
});
it('should set the database name to dbName in options object and respect the authSource option in options object', () => {
const client = new MongoClient('mongodb://u:p@host/myIgnoredDb', {
dbName: 'myDb',
authSource: 'myAuthDb'
});
const db = client.db();
expect(db).to.have.property('databaseName', 'myDb');
expect(client).to.have.nested.property('options.credentials.source', 'myAuthDb');
});
});
});
context('loggingOptions', function () {
const expectedLoggingObject = {
maxDocumentLength: 20,
logDestination: new Writable(),
componentSeverities: Object.fromEntries(
Object.values(MongoLoggableComponent).map(([value]) => [value, SeverityLevel.OFF])
)
};
before(() => {
sinon.stub(MongoLogger, 'resolveOptions').callsFake(() => {
return expectedLoggingObject;
});
});
after(() => {
sinon.restore();
});
it('assigns the parsed options to the mongoLoggerOptions option', function () {
const client = new MongoClient('mongodb://localhost:27017');
expect(client.options).to.have.property('mongoLoggerOptions').to.equal(expectedLoggingObject);
});
});
describe('logging client options', function () {
const loggerFeatureFlag = Symbol.for('@@mdb.enableMongoLogger');
describe('mongodbLogPath', function () {
context('when mongodbLogPath is in options', function () {
let stderrStub;
let stdoutStub;
beforeEach(() => {
stdoutStub = sinon.stub(process.stdout);
stderrStub = sinon.stub(process.stderr);
});
afterEach(() => {
sinon.restore();
});
context('when option is `stderr`', function () {
it('it is accessible through mongoLogger.logDestination', function () {
const client = new MongoClient('mongodb://a/', {
[loggerFeatureFlag]: true,
mongodbLogPath: 'stderr'
});
const log = { t: new Date(), c: 'constructorStdErr', s: 'error' };
client.options.mongoLoggerOptions.logDestination.write(log);
const logLine = inspect(log, { breakLength: Infinity, compact: true });
expect(stderrStub.write).calledWith(`${logLine}\n`);
});
});
context('when option is a MongoDBLogWritable stream', function () {
it('it is accessible through mongoLogger.logDestination', function () {
const writable = {
buffer: [],
write(log) {
this.buffer.push(log);
}
};
const client = new MongoClient('mongodb://a/', {
[loggerFeatureFlag]: true,
mongodbLogPath: writable
});
expect(client.options.mongoLoggerOptions.logDestination).to.deep.equal(writable);
});
});
context('when option is `stdout`', function () {
it('it is accessible through mongoLogger.logDestination', function () {
const client = new MongoClient('mongodb://a/', {
[loggerFeatureFlag]: true,
mongodbLogPath: 'stdout'
});
const log = { t: new Date(), c: 'constructorStdOut', s: 'error' };
client.options.mongoLoggerOptions.logDestination.write(log);
const logLine = inspect(log, { breakLength: Infinity, compact: true });
expect(stdoutStub.write).calledWith(`${logLine}\n`);
});
});
context('when option is invalid', function () {
context(`when option is an string that is not 'stderr' or 'stdout'`, function () {
it('should throw error at construction', function () {
const invalidOption = 'stdnothing';
expect(
() =>
new MongoClient('mongodb://a/', {
[loggerFeatureFlag]: true,
mongodbLogPath: invalidOption
})
).to.throw(MongoAPIError);
});
});
context('when option is not a valid MongoDBLogWritable stream', function () {
it('should throw error at construction', function () {
const writable = {
buffer: [],
misnamedWrite(log) {
this.buffer.push(log);
}
};
expect(
() =>
new MongoClient('mongodb://a/', {
[loggerFeatureFlag]: true,
mongodbLogPath: writable
})
).to.throw(MongoAPIError);
});
});
});
});
context('when mongodbLogPath is not in options', function () {
let stderrStub;
beforeEach(() => {
stderrStub = sinon.stub(process.stderr);
});
afterEach(() => {
sinon.restore();
});
it('should default to stderr', function () {
const client = new MongoClient('mongodb://a/', {
[loggerFeatureFlag]: true
});
const log = { t: new Date(), c: 'constructorStdErr', s: 'error' };
client.options.mongoLoggerOptions.logDestination.write(log);
const logLine = inspect(log, { breakLength: Infinity, compact: true });
expect(stderrStub.write).calledWith(`${logLine}\n`);
});
});
});
describe('mongodbLogComponentSeverities', function () {
const components = Object.values(MongoLoggableComponent);
const env_component_names = [
'MONGODB_LOG_COMMAND',
'MONGODB_LOG_TOPOLOGY',
'MONGODB_LOG_SERVER_SELECTION',
'MONGODB_LOG_CONNECTION',
'MONGODB_LOG_CLIENT'
];
context('when only client option is provided', function () {
for (let i = 0; i < components.length; i++) {
it(`it stores severity levels for ${components[i]} component correctly`, function () {
for (const severityLevel of Object.values(SeverityLevel)) {
const client = new MongoClient('mongodb://a/', {
[loggerFeatureFlag]: true,
mongodbLogComponentSeverities: {
[components[i]]: severityLevel
}
});
for (const [curComponent, curSeverity] of Object.entries(
client.options.mongoLoggerOptions.componentSeverities
)) {
if (curComponent === components[i]) {
expect(curSeverity).to.equal(severityLevel);
} else {
expect(curSeverity).to.equal(SeverityLevel.OFF);
}
}
}
});
}
});
context('when both client and environment option are provided', function () {
for (let i = 0; i < components.length; i++) {
it(`it stores severity level for ${components[i]} component correctly (client options have precedence)`, function () {
process.env[env_component_names[i]] = 'emergency';
for (const severityLevel of Object.values(SeverityLevel)) {
const client = new MongoClient('mongodb://a/', {
[loggerFeatureFlag]: true,
mongodbLogComponentSeverities: {
[components[i]]: severityLevel
}
});
for (const [curComponent, curSeverity] of Object.entries(
client.options.mongoLoggerOptions.componentSeverities
)) {
if (curComponent === components[i]) {
expect(curSeverity).to.equal(severityLevel);
} else {
expect(curSeverity).to.equal(SeverityLevel.OFF);
}
}
process.env[env_component_names[i]] = undefined;
}
});
}