Make element/3 support html input

[Boris Kuznetsov]

Hey,

I’m writing tests for Phoenix LiveView and found out that element/3 function is quite convenient to assert that page has certain elements.

Right now I can write something like this

assert view |> element(“table td", "text") |> has_element?()

The issue I have is I want to test a result of change_element/2 function like this as well

html = 

  view 

  |> element("#filter-form") 

  |> render_change(%{filter: %{days: "14"}})

  |> element("table td", “text") 

  |> has_element?()

For now I can use Floki to write something like this 

Floki.find(“.target") |> Emum.find(&has_test(&1, "text"))

It would be great if it would be possible to use element/2 with html input.