diff --git a/lib/cortex/application.ex b/lib/cortex/application.ex
index 4f7a305..68357e6 100644
--- a/lib/cortex/application.ex
+++ b/lib/cortex/application.ex
@@ -25,24 +25,16 @@ defmodule Cortex.Application do
   end
 
   defp children do
-    import Supervisor.Spec, warn: false
-
-    children = [
-      worker(FileWatcher, []),
-      worker(Reloader, []),
-      worker(Controller, [])
-    ]
-
     env_specific_children =
       case Mix.env() do
         :dev ->
           []
 
         :test ->
-          [worker(TestRunner, [])]
+          [TestRunner]
       end
 
-    children ++ env_specific_children
+    [FileWatcher, Reloader, Controller] ++ env_specific_children
   end
 
   defp autostart? do
diff --git a/lib/cortex/controller.ex b/lib/cortex/controller.ex
index 0cd7d37..334d733 100644
--- a/lib/cortex/controller.ex
+++ b/lib/cortex/controller.ex
@@ -16,7 +16,7 @@ defmodule Cortex.Controller do
   # Public API
   ##########################################
 
-  def start_link do
+  def start_link([]) do
     GenServer.start_link(__MODULE__, [], name: __MODULE__)
   end
 
@@ -152,7 +152,7 @@ defmodule Cortex.Controller do
     result = cb.(stage)
 
     continue? =
-      !stage.cancel_on_error? or
+      !stage.cancel_on_error?() or
         !match?({:error, _}, result)
 
     {result, continue?}
diff --git a/lib/cortex/reloader.ex b/lib/cortex/reloader.ex
index 7896d3e..f9923e4 100644
--- a/lib/cortex/reloader.ex
+++ b/lib/cortex/reloader.ex
@@ -14,8 +14,8 @@ defmodule Cortex.Reloader do
   # Public API
   ##########################################
 
-  @spec start_link :: GenServer.on_start()
-  def start_link do
+  @spec start_link([]) :: GenServer.on_start()
+  def start_link([]) do
     GenServer.start_link(__MODULE__, [], name: __MODULE__)
   end
 
diff --git a/lib/cortex/test_runner.ex b/lib/cortex/test_runner.ex
index f525051..25d9ffc 100644
--- a/lib/cortex/test_runner.ex
+++ b/lib/cortex/test_runner.ex
@@ -10,8 +10,8 @@ defmodule Cortex.TestRunner do
   # Public API
   ##########################################
 
-  @spec start_link :: GenServer.on_start()
-  def start_link do
+  @spec start_link([]) :: GenServer.on_start()
+  def start_link([]) do
     GenServer.start_link(__MODULE__, [], name: __MODULE__)
   end
 
diff --git a/mix.exs b/mix.exs
index 74791f2..17e9e72 100644
--- a/mix.exs
+++ b/mix.exs
@@ -12,7 +12,9 @@ defmodule Cortex.Mixfile do
       deps: deps(),
       package: package(),
       description: description(),
-      dialyzer: [ignore_warnings: "./.dialyzer-ignore-warnings.txt"]
+      dialyzer: [ignore_warnings: "./.dialyzer-ignore-warnings.txt"],
+      elixirc_paths: elixir_paths(Mix.env()),
+      xref: [exclude: [IEx.Helpers]]
     ]
   end
 
@@ -62,4 +64,7 @@ defmodule Cortex.Mixfile do
       {:ex_dash, "~> 0.1.0", only: [:dev]}
     ]
   end
+
+  def elixir_paths(:test), do: ["lib", "test/fixtures/initials"]
+  def elixir_paths(_), do: ["lib"]
 end
diff --git a/mix.lock b/mix.lock
index 2095ab5..4ba1891 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,15 +1,15 @@
 %{
-  "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], [], "hexpm"},
-  "credo": {:hex, :credo, "0.9.2", "841d316612f568beb22ba310d816353dddf31c2d94aa488ae5a27bb53760d0bf", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:poison, ">= 0.0.0", [hex: :poison, repo: "hexpm", optional: false]}], "hexpm"},
-  "dialyxir": {:hex, :dialyxir, "0.5.1", "b331b091720fd93e878137add264bac4f644e1ddae07a70bf7062c7862c4b952", [:mix], [], "hexpm"},
-  "earmark": {:hex, :earmark, "1.4.3", "364ca2e9710f6bff494117dbbd53880d84bebb692dafc3a78eb50aa3183f2bfd", [:mix], [], "hexpm"},
-  "ex_dash": {:hex, :ex_dash, "0.1.5", "cec8f0820f88539eeba71e88e12f64db1588c443e92216d881512097d88ef0ad", [:mix], [{:ex_doc, "~> 0.15", [hex: :ex_doc, repo: "hexpm", optional: false]}, {:floki, "~> 0.14.0", [hex: :floki, repo: "hexpm", optional: false]}], "hexpm"},
-  "ex_doc": {:hex, :ex_doc, "0.21.2", "caca5bc28ed7b3bdc0b662f8afe2bee1eedb5c3cf7b322feeeb7c6ebbde089d6", [:mix], [{:earmark, "~> 1.3.3 or ~> 1.4", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm"},
-  "file_system": {:hex, :file_system, "0.2.0", "1b899a8708dd121648b4f4f632022cf8fd989f3d7250621f34eca4831b217ee9", [:mix], [], "hexpm"},
-  "floki": {:hex, :floki, "0.14.0", "91a6be57349e10a63cf52d7890479a19012cef9185fa93c305d4fe42e6a50dee", [:mix], [{:mochiweb, "~> 2.15", [hex: :mochiweb, repo: "hexpm", optional: false]}], "hexpm"},
-  "makeup": {:hex, :makeup, "1.0.0", "671df94cf5a594b739ce03b0d0316aa64312cee2574b6a44becb83cd90fb05dc", [:mix], [{:nimble_parsec, "~> 0.5.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm"},
-  "makeup_elixir": {:hex, :makeup_elixir, "0.14.0", "cf8b7c66ad1cff4c14679698d532f0b5d45a3968ffbcbfd590339cb57742f1ae", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm"},
-  "mochiweb": {:hex, :mochiweb, "2.15.0", "e1daac474df07651e5d17cc1e642c4069c7850dc4508d3db7263a0651330aacc", [:rebar3], [], "hexpm"},
-  "nimble_parsec": {:hex, :nimble_parsec, "0.5.3", "def21c10a9ed70ce22754fdeea0810dafd53c2db3219a0cd54cf5526377af1c6", [:mix], [], "hexpm"},
-  "poison": {:hex, :poison, "3.1.0", "d9eb636610e096f86f25d9a46f35a9facac35609a7591b3be3326e99a0484665", [:mix], [], "hexpm"},
+  "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], [], "hexpm", "7af5c7e09fe1d40f76c8e4f9dd2be7cebd83909f31fee7cd0e9eadc567da8353"},
+  "credo": {:hex, :credo, "0.9.2", "841d316612f568beb22ba310d816353dddf31c2d94aa488ae5a27bb53760d0bf", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:poison, ">= 0.0.0", [hex: :poison, repo: "hexpm", optional: false]}], "hexpm", "8394e6ad3f53b74a75013f79b8104c935add0247ec5dfcde7f444ffe509000c0"},
+  "dialyxir": {:hex, :dialyxir, "0.5.1", "b331b091720fd93e878137add264bac4f644e1ddae07a70bf7062c7862c4b952", [:mix], [], "hexpm", "6c32a70ed5d452c6650916555b1f96c79af5fc4bf286997f8b15f213de786f73"},
+  "earmark": {:hex, :earmark, "1.4.3", "364ca2e9710f6bff494117dbbd53880d84bebb692dafc3a78eb50aa3183f2bfd", [:mix], [], "hexpm", "8cf8a291ebf1c7b9539e3cddb19e9cef066c2441b1640f13c34c1d3cfc825fec"},
+  "ex_dash": {:hex, :ex_dash, "0.1.5", "cec8f0820f88539eeba71e88e12f64db1588c443e92216d881512097d88ef0ad", [:mix], [{:ex_doc, "~> 0.15", [hex: :ex_doc, repo: "hexpm", optional: false]}, {:floki, "~> 0.14.0", [hex: :floki, repo: "hexpm", optional: false]}], "hexpm", "27ba5725a230393c0b7240a9d49c1dea41333f52fc6a2ad9bddf08c7b0a40792"},
+  "ex_doc": {:hex, :ex_doc, "0.21.2", "caca5bc28ed7b3bdc0b662f8afe2bee1eedb5c3cf7b322feeeb7c6ebbde089d6", [:mix], [{:earmark, "~> 1.3.3 or ~> 1.4", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm", "f1155337ae17ff7a1255217b4c1ceefcd1860b7ceb1a1874031e7a861b052e39"},
+  "file_system": {:hex, :file_system, "0.2.0", "1b899a8708dd121648b4f4f632022cf8fd989f3d7250621f34eca4831b217ee9", [:mix], [], "hexpm", "7d69c554254e5c91f1bc02febd72114995efe34cd07257b4d2a225e17bbf55c5"},
+  "floki": {:hex, :floki, "0.14.0", "91a6be57349e10a63cf52d7890479a19012cef9185fa93c305d4fe42e6a50dee", [:mix], [{:mochiweb, "~> 2.15", [hex: :mochiweb, repo: "hexpm", optional: false]}], "hexpm", "d21b1e459b218718c20defebb8dec6826091f67b0f58e6d0d0762294cc7150d3"},
+  "makeup": {:hex, :makeup, "1.0.0", "671df94cf5a594b739ce03b0d0316aa64312cee2574b6a44becb83cd90fb05dc", [:mix], [{:nimble_parsec, "~> 0.5.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "a10c6eb62cca416019663129699769f0c2ccf39428b3bb3c0cb38c718a0c186d"},
+  "makeup_elixir": {:hex, :makeup_elixir, "0.14.0", "cf8b7c66ad1cff4c14679698d532f0b5d45a3968ffbcbfd590339cb57742f1ae", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "d4b316c7222a85bbaa2fd7c6e90e37e953257ad196dc229505137c5e505e9eff"},
+  "mochiweb": {:hex, :mochiweb, "2.15.0", "e1daac474df07651e5d17cc1e642c4069c7850dc4508d3db7263a0651330aacc", [:rebar3], [], "hexpm", "b960d1cbcf40a30963eeee90ab7aeae074cbfa9a238561fb4434add1afc3075c"},
+  "nimble_parsec": {:hex, :nimble_parsec, "0.5.3", "def21c10a9ed70ce22754fdeea0810dafd53c2db3219a0cd54cf5526377af1c6", [:mix], [], "hexpm", "589b5af56f4afca65217a1f3eb3fee7e79b09c40c742fddc1c312b3ac0b3399f"},
+  "poison": {:hex, :poison, "3.1.0", "d9eb636610e096f86f25d9a46f35a9facac35609a7591b3be3326e99a0484665", [:mix], [], "hexpm", "fec8660eb7733ee4117b85f55799fd3833eb769a6df71ccf8903e8dc5447cfce"},
 }
diff --git a/test/cortex/reloader_test.exs b/test/cortex/reloader_test.exs
index d5ea802..c53b139 100644
--- a/test/cortex/reloader_test.exs
+++ b/test/cortex/reloader_test.exs
@@ -17,12 +17,6 @@ defmodule Cortex.ReloaderTest do
 
   describe "recompiles files" do
     test "recompiles a file", %{state: state} do
-      path = fixture_for("hello.ex")
-
-      assert ExUnit.CaptureLog.capture_log(fn ->
-               {:reply, :ok, _} = Reloader.handle_call({:reload_file, path}, nil, state)
-             end) =~ "reloaded test/fixtures/hello.ex"
-
       assert Hello.hi() == "hello"
 
       path = fixture_for("hello_2.ex")
diff --git a/test/fixtures/hello.ex b/test/fixtures/initials/hello.ex
similarity index 100%
rename from test/fixtures/hello.ex
rename to test/fixtures/initials/hello.ex