Test failure: additional "file" attribute

[curiousleo]

I get a test failure with the following output:

$ mix test

23:00:06.304 [info]  hello world

23:00:06.362 [debug] hello world


  1) test can log (LoggerLogstashBackendTest)
     test/logger_logstash_backend_test.exs:41
     Assertion with === failed
     code: data["fields"] === %{"function" => "test can log/1", "level" => "info", "module" => "Elixir
.LoggerLogstashBackendTest", "pid" => me, "some_metadata" => "go here", "line" => 42, "key1" => "field
1"}
     lhs:  %{"file" => "/home/leo/Code/logger_logstash_backend/test/logger_logstash_backend_test.exs",
             "function" => "test can log/1", "key1" => "field1", "level" => "info", "line" => 42,
             "module" => "Elixir.LoggerLogstashBackendTest", "pid" => "#PID<0.137.0>",
             "some_metadata" => "go here"}
     rhs:  %{"function" => "test can log/1", "key1" => "field1", "level" => "info", "line" => 42,
             "module" => "Elixir.LoggerLogstashBackendTest", "pid" => "#PID<0.137.0>",
             "some_metadata" => "go here"}
     stacktrace:
       test/logger_logstash_backend_test.exs:48

.

Finished in 0.6 seconds (0.05s on load, 0.5s on tests)
2 tests, 1 failure

Randomized with seed 298519

It seems like there is an additional unexpected field file.

[marcelog]

This is a change introduced with elixir 1.2.0 and closed with #3. Added Elixir 1.2.0 in the build with [08c2a6c]. Thank you!