CODEWITHSUNDEEP
erlangeunit
Anton Koval'
Anton Koval'

Reputation: 5053

erlang: automatically launch/stop applications for tests

have some function which performs html parsing of some content from web page.
I want to write some set of tests for it. In tests I'm going to fetch html content via httpc:request and pass it to my function with result validation in the end. But http client required application inets to be launched. After reading some docs about EUnit I came up with next chunk of code: 

-module(dparser_tests).
-include_lib("eunit/include/eunit.hrl").

start() ->
  inets:start(),
  ok.

stop(_) ->
  inets:stop(),
  ok.

do_smth(_) ->
  [?_assert(true =:= true)].


do_some_test_() ->
  {"Performs some default parsing stuff!",
    {setup, 
      fun start/0,
      fun stop/1,
      fun do_smth/1
    }
  }.

then

erlc dparser_tests.erl && erl -noshell -pa -eval "eunit:test(dparser)" -s init stop

and output is 

*** context setup failed ***
::undef


=======================================================
  Failed: 0.  Skipped: 0.  Passed: 0.
One or more tests were cancelled

UPDATE problem was in typo in inets:start()

Upvotes: 0

Views: 203

Answers (1)

johlo
johlo

Reputation: 5500

You have a typo in the start() function. Replace intets with inets and the error will go away.

Upvotes: 2

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