Wrote helper for change Wallaby session based on desired data, I’ve try to generate a session cookie without a real request by manually simulating parts of the Plug pipeline. It forces the execution of any before_send hooks to finalize the response (which includes generating the cookie). Current approach is a bit closer to actual cookie generation than just put_resp_cookie
put_session.ex
@spec put_session(Wallaby.Session.t(), atom(), term()) :: Wallaby.Session.t()
def put_session(session, key, value) do
endpoint_opts = Application.get_env(:runa, AppWeb.Endpoint)
secret_key_base = Keyword.fetch!(endpoint_opts, :secret_key_base)
session_opts = Keyword.fetch!(endpoint_opts, :session_options)
cookie_key = Keyword.fetch!(session_opts, :key)
conn =
%Plug.Conn{secret_key_base: secret_key_base}
|> Plug.Session.call(Plug.Session.init(session_opts))
|> Plug.Conn.fetch_session()
|> Plug.Conn.put_session(key, value)
|> Plug.Conn.resp(:ok, "")
|> then(fn conn ->
Enum.reduce_while(conn.private.before_send || [], conn, fn fun, acc ->
{:cont, fun.(acc)}
end)
end)
resp_cookie = conn.resp_cookies[cookie_key][:value]
session
|> Wallaby.Browser.visit("/")
|> Wallaby.Browser.set_cookie(cookie_key, resp_cookie)
end
Helper required session options inside test environment test.exs
config :runa, AppWeb.Endpoint,
http: [ip: {127, 0, 0, 1}, port: 4002],
secret_key_base:
"C3Vz504bPAE0Ik6A4nGbALDBrwNFGurw445+WHG8e7H9toKW8EfaXfhJN+K",
session_options: [
store: :cookie,
key: "_awesome_test",
signing_salt: "buKCuE47",
same_site: "Lax"
],
server: true
and minor changes endpoint.ex
@session_options Application.compile_env(
:runa,
[AppWeb.Endpoint, :session_options],
store: :cookie,
key: "_default_key",
signing_salt: "buKCuE42",
same_site: "Lax"
)
Example
feature "has ability to delete non-owner members", ctx do
session =
put_session(ctx.session, :user_id, ctx.user.id)
|> visit("/team")
|> assert_has(Query.css("[aria-label='Team members']"))
{member, _} =
Enum.find(ctx.members, fn {_, role} -> role.role != :owner end)
assert_has(
session,
Query.css("[aria-label=\"Member #{member.name} form\"]",
text: member.name
)
)
|> click(Query.css("[aria-label=\"Delete #{member.name} from team\"]"))
|> click(Query.css("[aria-label=\"Confirm delete contributor\"]"))
|> visit("/team")
|> assert_has(
Query.css("[aria-label=\"Member #{member.name} form\"]", count: 0)
)
end
