Software versions

• Tedious: 16.1.0
• Node.js: 16+

Additional Libraries Used and Versions

Particularly noticeable when using alongside the @google-cloud/cloud-sql-connector library that uses the connector factory method.

Connection configuration

Notice the highlighted properties that should not be required, since a custom connector function is being used:

const connection = new Connection({
-  server: '0.0.0.0',
  authentication: {
    type: 'default',
    options: {
      userName: process.env.SQLSERVER_USER,
      password: process.env.SQLSERVER_PASS,
    },
  },
  options: {
    connector: async () => net.connect({
      host: '192.168.1.212',
      port: 1433,
    }),
-    port: 9999,
    database: process.env.SQLSERVER_DB,
  },
})

Problem description

When using the new custom connector factory method, the server and port properties should not be required.

Expected behavior

Config options defining only a connector factory method should be valid.

Actual behavior

Error message/stack trace

The "config.server" property is required and must be of type string.

  test: open connection and run basic sqlserver commands
  stack: |
    new Connection (node_modules/tedious/src/connection.ts:1056:13)
    Test.<anonymous> (system-test/tedious-connect.cjs:30:24)
  at:
    line: 1056
    column: 13
    file: node_modules/tedious/src/connection.ts
    function: Connection

Any other details that can be helpful

Please note that I'm the original contributor of that feature and will be happy to follow up with a fix for this problem 😊