Testing

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Erabi.Test chooses and searches in Phoenix.LiveViewTest, with no browser.

import Erabi.Test

test "labels a task", %{conn: conn} do
  {:ok, view, _html} = live(conn, ~p"/tasks/1")

  assert choices(view, "task_labels_picker") == ["Bug", "Feature", "Docs"]
  assert chosen(view, "task_labels_picker") == ["Bug"]

  html = choose(view, "task_labels_picker", ["bug", "docs"])
  assert html =~ "2 labels"
end
  • choose/3 sends the form's phx-change with the values in the picker's input, as the picker does in a browser, and with the other pickers of the form as they are. The form needs an id. The values are not checked here: a test can choose a value that the rules refuse, to see the error.
  • choices/2 gives the labels of a picker's options, in order (not options/2: Phoenix.ConnTest has one).
  • chosen/2 gives the labels of its chosen values, as the server rendered them.
  • search/3 runs a picker's search, sync or async, and gives the labels it found.

The inputs of a picker are not updated in LiveViewTest's copy of the page (they are under phx-update="ignore", as in a browser, where the hook keeps them). To submit, give the form the values:

view
|> form("#task-form", task: %{labels: ["bug"]})
|> render_submit()

In a browser

Erabi's own browser tests (mix test.e2e) run in Chromium, Firefox and WebKit against the development pages (mix dev).