我启动了一个新项目,并将其配置如下:
mix new example
cd example我清空了lib/example.ex,并在其中放置了以下代码:
Application.start :hound
defmodule Example do
use Hound.Helpers
def run do
Hound.start_session
navigate_to "http://akash.im"
IO.inspect page_title()
# Automatically invoked if the session owner process crashes
Hound.end_session
end
end
Example.run这是https://github.com/HashNuke/hound/blob/master/notes/simple-browser-automation.md提供的示例代码
然后我通过brew install selenium-server-standalone安装了Selenium服务器(我在MacOS上),通过brew services start selenium-server-standalone启动了它,并将config :hound, driver: "selenium"添加到config/config.exs中
我添加了Application.ensure_all_started(:hound)作为test/test_helper.exs的第一行。
最后,我将{:hound, "~> 1.0"}添加到mix.exs并运行mix test。当我收到以下编译错误时:
localhost:example alex$ mix test
===> Compiling parse_trans
===> Compiling mimerl
===> Compiling metrics
===> Compiling unicode_util_compat
===> Compiling idna
==> jason
Compiling 8 files (.ex)
Generated jason app
==> ssl_verify_fun
Compiling 7 files (.erl)
Generated ssl_verify_fun app
===> Compiling certifi
===> Compiling hackney
==> hound
Compiling 37 files (.ex)
Generated hound app
==> example
Compiling 1 file (.ex)
== Compilation error in file lib/example.ex ==
** (ArgumentError) argument error
(stdlib) :ets.lookup(Hound.SessionServer, #PID<0.592.0>)
(hound) lib/hound/session_server.ex:19: Hound.SessionServer.current_session_id/1
(hound) lib/hound/session_server.ex:13: Hound.SessionServer.session_for_pid/2
lib/example.ex:7: Example.run/0
localhost:example alex$ mix test
Compiling 1 file (.ex)
== Compilation error in file lib/example.ex ==
** (ArgumentError) argument error
(stdlib) :ets.lookup(Hound.SessionServer, #PID<0.160.0>)
(hound) lib/hound/session_server.ex:19: Hound.SessionServer.current_session_id/1
(hound) lib/hound/session_server.ex:13: Hound.SessionServer.session_for_pid/2
lib/example.ex:7: Example.run/0我是在某个地方忘记了一步,还是错误地配置了东西?任何帮助都非常感谢,谢谢!
发布于 2019-07-03 20:07:20
我清空了
lib/example.ex,并将下面的代码放在那里:
defmodule Example do
...
end
Example.run.ex文件和.exs文件是有区别的。您决定将该代码放入应用程序的主.ex文件中。去掉这一行:
Example.run然后,要执行Example.run(),您可以执行以下操作:
.../example$ iex -S mix
iex(1)> Example.run
"Akash Manohar // @HashNuke"
:ok或者,您可以将扩展更改为.exs,然后使用以下代码运行代码:
.../example$ mix run lib/example.exs另一方面,如果希望mix test运行测试,则必须将测试放在测试目录中。例如:
defmodule ExampleTest do
use ExUnit.Case
use Hound.Helpers
test "page title is correct" do
Hound.start_session
navigate_to "http://akash.im"
#IO.inspect page_title()
assert page_title() == "Akash Manohar // @HashNuke"
Hound.end_session
end
end在猎犬实例这里中,hound_session()调用给我造成了一个错误:
15:06:33.736错误GenServer Hound.SessionServer终止** (RuntimeError)无法创建新会话:超时,检查webdriver正在运行(猎犬) lib/hound/session_server.ex:101: Hounds.essionServer.create_session/2
https://stackoverflow.com/questions/56875042
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