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Concurrent feature tests for elixir
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lib/wallaby.ex
defmodule Wallaby do
@moduledoc """
A concurrent feature testing library.
## Configuration
Wallaby supports the following options:
* `:pool_size` - Maximum amount of phantoms to run. The default is `:erlang.system_info(:schedulers_online) * 2`.
* `:screenshot_dir` - The directory to store screenshots.
* `:screenshot_on_failure` - if Wallaby should take screenshots on test failures (defaults to `false`).
* `:max_wait_time` - The amount of time that Wallaby should wait to find an element on the page. (defaults to `3_000`)
* `:js_errors` - if Wallaby should re-throw javascript errors in elixir (defaults to true).
"""
use Application
@pool_name Wallaby.ServerPool
def start(_type, _args) do
import Supervisor.Spec, warn: false
children = [
:poolboy.child_spec(@pool_name, poolboy_config, []),
worker(Wallaby.LogStore, []),
]
opts = [strategy: :one_for_one, name: Wallaby.Supervisor]
Supervisor.start_link(children, opts)
end
def start_session(opts \\ []) do
server = :poolboy.checkout(@pool_name)
Wallaby.Driver.create(server, opts)
end
def end_session(%Wallaby.Session{server: server}) do
:poolboy.checkin(Wallaby.ServerPool, server)
end
def screenshot_on_failure? do
Application.get_env(:wallaby, :screenshot_on_failure)
end
def pool_size do
Application.get_env(:wallaby, :pool_size) || default_pool_size
end
def js_errors? do
Application.get_env(:wallaby, :js_errors) || true
end
defp poolboy_config do
[name: {:local, @pool_name},
worker_module: Wallaby.Server,
size: pool_size,
max_overflow: 0]
end
defp default_pool_size do
:erlang.system_info(:schedulers_online)
end
end