Function login

@app/db/__tests__/app_private/functions/login.test.ts:6–18

(
  client: PoolClient,
  username: string | null,
  password: string | null
)

import { reallyCreateUser } from "./really_create_user.test";

export async function login(
  client: PoolClient,
  username: string | null,
  password: string | null
) {
  const {
    rows: [row],
  } = await client.query(`select * from app_private.login($1, $2)`, [
    username,
    password,
  ]);
  return row;
}

const USERNAME = "username";
const EMAIL = `${USERNAME}@example.com`;