Sandbox adapter for Redis via Redix.

Isolates each test by giving it a dedicated Redis database number. A pool of Redix connections (each on a different DB) is created at setup. On checkout, the test gets a clean connection; on checkin, the DB is flushed and returned to the pool.

Configuration

config :sandbox_case,
  sandbox: [
    redis: [url: "redis://localhost:6379", pool_size: 8]
  ]

Accessing the connection

In your app code, read the sandboxed connection from the process dictionary with a fallback to your default connection:

def redis_conn do
  Process.get(:redis_sandbox) || MyApp.Redis.default_conn()
end