Normandy.Test.MemoryStoreContract (normandy v2.2.0)

The ExUnit tests every Normandy.Behaviours.MemoryStore implementation must pass. Normandy runs them against its own five backends; run them against yours.

defmodule MyApp.MemoryStoreTest do
  use ExUnit.Case, async: true

  use Normandy.Test.MemoryStoreContract,
    impl: MyApp.MemoryStore,
    new: {MyApp.MemoryStore, :new, [[url: "..."]]}
end

Options, checked when the test module compiles (a bad one raises ArgumentError):

• :impl (atom/0) - Required. The module implementing Normandy.Behaviours.MemoryStore.

• :new - {module, function, args} returning a handle, called once per test. Default: {impl, :new, []}.

Each test writes under its own namespace ("contract-<unique integer>"), so handles may share storage and the test module may be async: true, unless your backend keeps node-global state that new resets (then async: false). The tests run real concurrency (Tasks racing on one namespace, awaited for up to 15 s), drive the memory tool (Normandy.Tools.Memory) against the store, and fill a namespace past Normandy.Behaviours.MemoryStore.list_limit/0.