Testing

A mountable library has no router or endpoint of its own. Its tests mount it in a host defined in test/support:

defmodule MyLib.TestHost do
  use PhoenixMountable.TestHost,
    otp_app: :my_lib,
    mounts: [
      {MyLib.Router, "/my_lib", resolver: MyLib.TestResolver},
      {MyLib.Router, "/public", as: :public_lib}
    ]
end

# test/test_helper.exs
MyLib.TestHost.start()
ExUnit.start()

defmodule MyLib.HomeLiveTest do
  use ExUnit.Case, async: true
  use PhoenixMountable.Test, host: MyLib.TestHost

  test "renders", %{conn: conn} do
    {:ok, _view, html} = live(conn, "/my_lib")
    assert html =~ "Welcome"
  end
end

The host's router pipes the mounts through a :browser pipeline like a generated Phoenix app's, and its endpoint has a LiveView socket.

Options and sessions

PhoenixMountable.Test.build_mount/3 builds a mount as the macro does, without a router, to test options, normalize_options/1 and session/3:

mount = PhoenixMountable.Test.build_mount(MyLib.Router, "/my_lib", theme: :dark)
assert MyLib.Router.session(conn, mount, :default)["theme"] == :dark

Migrations

See the Migrations guide: PhoenixMountable.Migrations.Test.run_suite/3 checks the library's migrations against a real database.