Error While Testing Using Hound

Phoenix Forum Questions / Help
1

Hello.
While I am testing with Hound library(using phantomjs). I have some error.

it is really simple integration test. something like.

test code is like this

hound_session()

  test "correct header title? " do
    navigate_to("/")
    h2_text = find_element(:tag, "h2") |> visible_text()
    assert h2_text == "Welcome to Phoenix!"
  end

and Error says like this.

  1. test correct header title? (MtextingWeb.Acceptance.HomePageTest)
    test/mtexting_web/acceptance/home_page_test.exs:7
    ** (RuntimeError) Webdriver call status code 404 for post request http://localhost:8910/session/94798eb0-902a-11e7-a87c-b3a11c5c7b73/element.
    Check if webdriver server is running. Make sure it supports the feature being requested.

    code: h2_text = find_element(:tag, “h2”) |> visible_text()
    stacktrace:
    (hound) lib/hound/request_utils.ex:50: Hound.RequestUtils.handle_response/3
    (hound) lib/hound/helpers/page.ex:65: Hound.Helpers.Page.search_element/3
    (hound) lib/hound/helpers/page.ex:48: Hound.Helpers.Page.find_element/3
    test/mtexting_web/acceptance/home_page_test.exs:10: (test)

Finished in 2.8 seconds
1 test, 1 failure

in phantomjs stack trace says,

[ERROR - 2017-09-02T22:03:41.378Z] RouterReqHand - _handle.error - {"line":40,"stack":"get\n_find\n_locateElement\n_handleLocateCommand\n_handle\n_reroute\n_handle"}

I have hound library installed.
I put
config :hound, driver: “phantomjs” in test.exs
Application.ensure_all_started(:hound) in test_helper.exs at the top.

Am I missing something?

2

All examples using hound I’ve found have used full urls. Please try that first.

3

Have you added server: true to you Endpoint config in in config/test.exs? I believe this is necessary to run hound.

# We don't run a server during test. If one is required,
# you can enable the server option below.
config :mango, MangoWeb.Endpoint,
  http: [port: 4001],
  server: true

config :hound, driver: "phantomjs"
4

hi!
I tried full urls like
http://localhost:4000/

but it still doesn’t work. :frowning:

5

Yes I did already

6
  1. Have you set server: true as @kylethebaker said?
  2. Is your test environment really listening on port 4000? Default for test is 4001 AFAIR, to not get in conflict with a running dev-server.
  3. Instead of hardcoding those URLs you should try to use the URL helpers to generate them… (which would avoid the confusion from 2 as well)
7
  1. Yes I did
  2. Yes I did also
    config :mtexting, MtextingWeb.Endpoint,
    http: [port: 4001],
    server: true
  3. Can you show me an example?

And strange thing is.

This test code work and pass

test "correct header title? " do
    navigate_to("/")
    assert page_source() =~ "Welcome to Phoenix!"
end
8

So, since it seems to work in a basic variant, we need to test something else…

Lets stepwise increase complexity:

First only find element:

test "correct header title? " do
  navigate_to("/")
  find_element(:tag, "h2")
  assert true
end

Second, try to get the visible stuff out of it:

test "correct header title? " do
  navigate_to("/")
  find_element(:tag, "h2") |> visible_text()
  assert true
end

Third, your original test.

Please report which one is the first to break… (Actually I omitted even one step, but you already confirmed a simple navigate with asserting truth as working)

9

Interesting, I’ve had my own issues in Hound where using find_element() causes an error but the regex matching with =~ works. It was a different error though so possibly not related.

10

Yes same here…

11

Ran into this while going through the Mastering Phoenix book.

Issue seems to be if you installed phantomjs via apt-get. See https://github.com/HashNuke/hound/issues/175 for more details.