Sharing context across tests

registry_test.exs

defmodule KeyVal.RegistryTest do
  use ExUnit.Case, async: false

  setup do
    {:ok, registry} = KeyVal.Registry.start_link
    {:ok, registry: registry}
  end

  test "spawns bucket", %{registry: registry} do
    assert {:ok, _bucket} = KeyVal.Registry.create(registry, "shopping")
    assert KeyVal.Registry.create(registry, "shopping") == :error
  end

  test "can lookup for a bucket", %{registry: registry} do
    assert {:ok, bucket} = KeyVal.Registry.lookup(registry, "shopping")
  end

  test "can store value in spawned bucket", %{registry: registry} do
    assert {:ok, bucket} = KeyVal.Registry.lookup(registry, "shopping")
    KeyVal.Bucket.put(bucket, "eggs", 1)
    assert KeyVal.Bucket.get(bucket, "eggs") == 1
  end
end