added changes for travis to use coverage

Author: zookzook

.travis.yml

@@ -16,15 +16,16 @@ before_script:
   - mkdir ${PWD}/mongodb/data
   - ${PWD}/mongodb/bin/mongod --dbpath ${PWD}/mongodb/data --logpath ${PWD}/mongodb/mongodb.log --fork
 
-script:
-  - mix local.hex --force
-  - mix local.rebar --force
-  - mix deps.get
-  - mix coveralls.travis
-
 env:
+  - MIX_ENV=test
   matrix:
     - MONGODB=3.2.20
     - MONGODB=3.4.16
     - MONGODB=3.6.6
     - MONGODB=ubuntu1604-v4.2-latest
+
+script:
+  - mix local.hex --force
+  - mix local.rebar --force
+  - mix deps.get
+  - mix coveralls.travis

mix.exs

@@ -13,9 +13,9 @@ defmodule Mongodb.Mixfile do
      docs: docs(),
      description: description(),
      package: package(),
-      test_coverage: [tool: ExCoveralls],
-      preferred_cli_env: [docs: :docs, coveralls: :test, "coveralls.detail": :test, "coveralls.post": :test, "coveralls.html": :test],
-      dialyzer: [
+     test_coverage: [tool: ExCoveralls],
+     preferred_cli_env: [docs: :docs, coveralls: :test, "coveralls.detail": :test, "coveralls.post": :test, "coveralls.html": :test],
+     dialyzer: [
        flags: [:underspecs, :unknown, :unmatched_returns],
        plt_add_apps: [:logger, :connection, :db_connection, :mix, :elixir, :ssl, :public_key],
        plt_add_deps: :transitive,