Fix config file locations and clean up test warnings

config/config.exs

@@ -1,4 +1,3 @@
 # This file is responsible for configuring your application
 # and its dependencies with the aid of the Mix.Config module.
 use Mix.Config
-import_config "#{Mix.env}.exs"

config/deploy/test.exs

@@ -0,0 +1 @@
+use Mix.Config

lib/bootleg/config.ex

@@ -111,7 +111,7 @@ defmodule Bootleg.Config do
   ```
   use Bootleg.Config
   config :foo, :bar
-  
+
   # local_foo will be :bar
   local_foo = config :foo
 

test/bootleg/config/agent_test.exs

@@ -1,6 +1,7 @@
 defmodule Bootleg.Config.AgentTest do
   use Bootleg.TestCase, async: false
   alias Bootleg.Config.Agent
+  import ExUnit.CaptureIO
 
   test "stores values for retrieval" do
     {:ok, _} = Agent.start_link
@@ -29,7 +30,9 @@ defmodule Bootleg.Config.AgentTest do
   end
 
   test "start_link/1 sets the environment to the provided env" do
-    Agent.start_link(:bar)
+    capture_io(fn ->
+      Agent.start_link(:bar)
+    end)
     assert Agent.get(:config) == [env: :bar]
   end
 end

test/bootleg/config_test.exs

@@ -3,6 +3,7 @@ defmodule Bootleg.ConfigTest do
   alias Bootleg.{Config, UI, SSH}
   alias Config.Agent
   alias Mix.Project
+  import ExUnit.CaptureIO
   import Mock
 
   doctest Bootleg.Config
@@ -216,13 +217,15 @@ defmodule Bootleg.ConfigTest do
   end
 
   test "env/1" do
-    Config.env(:bar)
+    capture_io(fn ->
+      Config.env(:bar)
+    end)
     assert :bar == Config.env
   end
 
   test_with_mock "env/1 starts the agent", Agent, [:passthrough], [] do
-    Config.env(:bar)
-    assert called Agent.start_link(:bar)
+    Config.env(:test)
+    assert called Agent.start_link(:test)
   end
 
   test "invoke/1" do