sqmicro-driver-pg/test/pg-driver.test.js

Postgres driver for SQ micro connection

// Test connection / reconnection logic
const PgDriver = require('..');
const Connection = require('sqmicro-connection')(PgDriver);

// To simulate network problems use socat:
// socat TCP-LISTEN:5435,reuseaddr,fork TCP:localhost:5432
const connectionString = 'postgresql://user:passuser@localhost:5435/proto-pgs';

// The number of rows will be logged.
const SQL = 'SELECT * from command';

process.on('SIGINT', async () => {
    await connection.disconnect();
    console.log('Bye, bye user...');
    process.exit();
});

process.on('unhandledRejection', (reason, p) => {
    reason.stack;
    console.error('Unhandled Rej ', reason)
});

const connection = new Connection({ connectionString });
connection.on('error', e => console.log(`got error: ${e}`));
connection.connect();

setInterval(
    () => work(),
    5000
);

async function work() {
    if (!connection.isConnected) {
        console.log('--- no connection');
        return;
    }
    
    let res = await connection.query(SQL);
    console.log(`+++ RES[${res.rows.length}]`);
}