LeaseLock Engineering: Mocha Parallel Mode globalFixtures.js example

leaselockGlobalFixtures.js

const path = require('path');
const dockerCompose = require('docker-compose');
const { getDbConnection } = require('../db_connections'); 

const PATH_TO_DOCKER_COMPOSE_YML = path.join(__dirname);

exports.mochaGlobalSetup = async () => {
  // Bring up the Postgres container for testing
  await dockerCompose.upAll({ cwd: PATH_TO_DOCKER_COMPOSE_YML });
  
  // Fetch a DB connection to the Postgres container's leaselock_template database which was pre-configured in the docker-compose.yml
  const dbConnection = await getDbConnection({
    host: 'localhost',
    port: 5432,
    database: 'leaselock_template'
  }); // Returns a knex instance
  
  // Run all migrations on the `leaselock_template` database so its schema is up to date
  await dbConnection.migrate.latest();
}

exports.mochaGlobalTeardown = async () => {
  // Bring down the container once the tests finish running
  await dockerCompose.down({ cwd: PATH_TO_DOCKER_COMPOSE_YML });
}