Merge pull request #13 from locaweb/elixir-1.8

Support Elixir-1.8

36 files changed, 366 insertions, 205 deletions

diff --git a/.formatter.exs b/.formatter.exs
new file mode 100644
index 0000000..650bb88
--- /dev/null
+++ b/.formatter.exs
@@ -0,0 +1,4 @@
+[
+  inputs: ["mix.exs", "{config,lib,test}/**/*.{ex,exs}"]
+]
+
diff --git a/.travis.yml b/.travis.yml
index 8109625..56473e5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,22 +2,23 @@
 language: elixir
 
 elixir:
-  - 1.3
-  - 1.4
-  - 1.5
+  - 1.6
+  - 1.7
+  - 1.8
 otp_release:
-  - 17.4
-  - 18.3
   - 19.3
   - 20.0
+  - 21.0
+
+script: mix test
 
 matrix:
-  exclude:
-    - elixir: 1.3
-      otp_release: 20.0
-#     - elixir: 1.4
-#       otp_release: 17.4
-#     - elixir: 1.4
-#       otp_release: 18.3
+  include:
+    - elixir: '1.6.6'
+      otp_release: '19.3.6'
+
+    - elixir: '1.7.4'
+      otp_release: '20.0'
 
-script: mix test
\ No newline at end of file
+    - elixir: '1.7.4'
+otp_release: '21.0'
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..6413529
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,12 @@
+FROM elixir:1.8
+
+RUN mkdir -p /opt/power_dnsex/
+ENV LC_ALL C.UTF-8
+WORKDIR /opt/power_dnsex
+
+ADD mix.exs /opt/power_dnsex/mix.exs
+ADD mix.lock /opt/power_dnsex/mix.lock
+RUN mix do local.hex --force, local.rebar --force
+
+EXPOSE 4000
+CMD ["/bin/bash"]
diff --git a/README.md b/README.md
index 2f161b0..3aba62c 100644
--- a/README.md
+++ b/README.md
@@ -111,3 +111,35 @@ rrset = PowerDNSex.show_record("example.com", record)
 res = PowerDNSex.delete_record(zone, rrset)
 ```
 
+## Development
+
+### Setup application
+```bash
+$ script/setup
+```
+
+### Run local console (IEX)
+```bash
+$ script/run
+```
+
+### Run tests
+```bash
+$ script/test
+```
+
+#### Run tests to a specific File
+```bash
+$ script/test test/lib/powerdnsex/powerdnsex_test.exs
+```
+
+### Reset environment (clean + setup)
+### YOU WILL LOSE EVERYTHING
+
+Good for then you change the elixir version and need to delete everything and start again
+
+```bash
+$ script/reset
+```
+
+
diff --git a/config/config.exs b/config/config.exs
index 8eff0b9..8233fe9 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -1,4 +1,3 @@
 use Mix.Config
 
-import_config "#{Mix.env}.exs"
-
+import_config "#{Mix.env()}.exs"
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..6fe6fa2
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,9 @@
+version: '3'
+services:
+  web:
+    tty: true
+    stdin_open: true
+    build: .
+    command: 'iex -S mix'
+    volumes:
+      - .:/opt/power_dnsex
diff --git a/lib/powerdnsex.ex b/lib/powerdnsex.ex
index 0f7876b..6568319 100644
--- a/lib/powerdnsex.ex
+++ b/lib/powerdnsex.ex
@@ -5,9 +5,9 @@ defmodule PowerDNSex do
 
   @name :PowerDNSex
 
-  def start(_,_), do: start()
+  def start(_, _), do: start()
 
-  @spec start() :: GenServer.on_start
+  @spec start() :: GenServer.on_start()
   @doc false
   def start() do
     import Supervisor.Spec
@@ -16,7 +16,7 @@ defmodule PowerDNSex do
     options = [strategy: :one_for_one, name: :"#{@name}.Supervisor"]
 
     try do
-      Config.valid?
+      Config.valid?()
 
       case Supervisor.start_link(children, options) do
         {:ok, pid} -> {:ok, pid}
@@ -34,7 +34,7 @@ defmodule PowerDNSex do
   # Zones #
   #########
 
-  @spec create_zone(Zone.t, String.t) :: Zone.t | Error.t
+  @spec create_zone(Zone.t(), String.t()) :: Zone.t() | Error.t()
   @doc """
   Create a new Zone on PowerDNS
   """
@@ -42,8 +42,7 @@ defmodule PowerDNSex do
     call({:create_zone, zone, server_name})
   end
 
-
-  @spec show_zone(String.t, String.t) :: :ok | {:error, String.t}
+  @spec show_zone(String.t(), String.t()) :: :ok | {:error, String.t()}
   @doc """
   Show / Retrive info of the specific Zone
   """
@@ -51,8 +50,7 @@ defmodule PowerDNSex do
     call({:show_zone, zone, server_name})
   end
 
-
-  @spec delete_zone(String.t, String.t) :: :ok | {:error, String.t}
+  @spec delete_zone(String.t(), String.t()) :: :ok | {:error, String.t()}
   @doc """
   Delete specific Zone on PowerDNS
   """
@@ -64,7 +62,7 @@ defmodule PowerDNSex do
   # Records #
   ###########
 
-  @spec create_record(Zone.t, struct) :: :ok | {:error, String.t}
+  @spec create_record(Zone.t(), struct) :: :ok | {:error, String.t()}
   @doc """
   Create a new Record for the given Zone
   """
@@ -72,7 +70,7 @@ defmodule PowerDNSex do
     call({:create_record, zone, rrset_attrs})
   end
 
-  @spec show_record(String.t, struct) :: :ok | {:error, String.t}
+  @spec show_record(String.t(), struct) :: :ok | {:error, String.t()}
   @doc """
   Show / Retrive info of the specific Record of the given Zone name
   """
@@ -80,7 +78,7 @@ defmodule PowerDNSex do
     call({:show_record, zone_name, rrset_attrs})
   end
 
-  @spec update_record(Zone.t, struct) :: :ok | {:error, String.t}
+  @spec update_record(Zone.t(), struct) :: :ok | {:error, String.t()}
   @doc """
   Update Record of the given Zone
   """
@@ -88,7 +86,7 @@ defmodule PowerDNSex do
     call({:update_record, zone, rrset_attrs})
   end
 
-  @spec delete_record(Zone.t, struct) :: :ok | {:error, String.t}
+  @spec delete_record(Zone.t(), struct) :: :ok | {:error, String.t()}
   @doc """
   Delete specific Record of given Zone
   """
@@ -101,5 +99,4 @@ defmodule PowerDNSex do
   ###########
 
   defp call(params), do: GenServer.call(@name, params)
-
 end
diff --git a/lib/powerdnsex/config.ex b/lib/powerdnsex/config.ex
index 0d97cb2..34d5889 100644
--- a/lib/powerdnsex/config.ex
+++ b/lib/powerdnsex/config.ex
@@ -5,22 +5,22 @@ defmodule PowerDNSex.Config do
   alias PowerDNSex.Config
 
   def data do
-    set_attr_value = &(Map.put(&2, &1, get_key(&1)))
+    set_attr_value = &Map.put(&2, &1, get_key(&1))
 
     %Config{}
-    |> Map.from_struct
-    |> Map.keys
+    |> Map.from_struct()
+    |> Map.keys()
     |> Enum.reduce(%Config{}, set_attr_value)
   end
 
   def powerdns_url do
-     url = data.url
-     if String.ends_with?(url, "/"), do: url, else: url <> "/"
+    url = data().url
+    if String.ends_with?(url, "/"), do: url, else: url <> "/"
   end
 
-  def powerdns_token, do: data.token
+  def powerdns_token, do: data().token
 
-  def valid?(), do: powerdns_url && powerdns_token
+  def valid?(), do: powerdns_url() && powerdns_token()
 
   ###
   # Private
@@ -28,8 +28,12 @@ defmodule PowerDNSex.Config do
 
   defp get_key(key) do
     case Application.fetch_env(:powerdnsex, key) do
-      {:ok, {:system, env_var_name}} -> System.get_env(env_var_name)
-      {:ok, value} -> value
+      {:ok, {:system, env_var_name}} ->
+        System.get_env(env_var_name)
+
+      {:ok, value} ->
+        value
+
       _ ->
         raise "[PowerDNSex] PowerDNS #{Atom.to_string(key)} not configured."
     end
diff --git a/lib/powerdnsex/converter.ex b/lib/powerdnsex/converter.ex
index 507c119..8f8639e 100644
--- a/lib/powerdnsex/converter.ex
+++ b/lib/powerdnsex/converter.ex
@@ -7,9 +7,12 @@ defmodule PowerDNSex.Converter do
     for {key, value} <- struct, into: %{} do
       n_key = if is_binary(key), do: String.to_atom(key), else: key
 
-      n_value = if is_map(value) or is_list(value) do
-                  keys_to_atom(value)
-                else value end
+      n_value =
+        if is_map(value) or is_list(value) do
+          keys_to_atom(value)
+        else
+          value
+        end
 
       {n_key, n_value}
     end
diff --git a/lib/powerdnsex/gen_server/server.ex b/lib/powerdnsex/gen_server/server.ex
index 3b24503..a0bb7d8 100644
--- a/lib/powerdnsex/gen_server/server.ex
+++ b/lib/powerdnsex/gen_server/server.ex
@@ -2,7 +2,11 @@ defmodule PowerDNSex.Server do
   use GenServer
 
   alias PowerDNSex.Managers.{ZonesManager, RecordsManager}
-  alias PowerDNSex.{Models.Zone, Converter}
+  alias PowerDNSex.Converter
+
+  def init(args) do
+    {:ok, args}
+  end
 
   def start_link(name) do
     GenServer.start_link(__MODULE__, :ok, name: name)
diff --git a/lib/powerdnsex/http_client.ex b/lib/powerdnsex/http_client.ex
index 0a242b5..13e5023 100644
--- a/lib/powerdnsex/http_client.ex
+++ b/lib/powerdnsex/http_client.ex
@@ -1,5 +1,5 @@
 defmodule PowerDNSex.HttpClient do
-  @moduledoc"""
+  @moduledoc """
   Client to do http requests for PowerDns API
   """
 
@@ -7,10 +7,10 @@ defmodule PowerDNSex.HttpClient do
 
   alias PowerDNSex.Config
 
-  def process_url(url), do: Config.powerdns_url <> url
+  def process_url(url), do: Config.powerdns_url() <> url
 
-  defp process_request_headers(headers) do
-    custom = ["X-API-Key": Config.powerdns_token]
-    Enum.into(headers, custom)
+  def process_request_headers(headers) do
+    custom = ["X-API-Key": Config.powerdns_token()]
+    Keyword.merge(headers, custom)
   end
 end
diff --git a/lib/powerdnsex/managers/records_manager.ex b/lib/powerdnsex/managers/records_manager.ex
index 9b6a96f..f2ef6b5 100644
--- a/lib/powerdnsex/managers/records_manager.ex
+++ b/lib/powerdnsex/managers/records_manager.ex
@@ -7,7 +7,6 @@ defmodule PowerDNSex.Managers.RecordsManager do
   alias PowerDNSex.Managers.ZonesManager
   alias HTTPoison.Response
 
-
   def create(%Zone{} = zone, %{} = rrset_attrs) do
     rrset_attrs = Map.merge(rrset_attrs, %{changetype: "REPLACE"})
     patch(zone, rrset_attrs)
@@ -45,9 +44,12 @@ defmodule PowerDNSex.Managers.RecordsManager do
 
   defp process_request_response(%Response{body: body, status_code: status}) do
     case status do
-      s when s == 204 -> :ok
+      s when s == 204 ->
+        :ok
+
       s when s < 300 ->
         :ok
+
       s when s >= 300 ->
         error = Poison.decode!(body, as: %Error{})
         {:error, %{error | http_status_code: s}}
@@ -60,7 +62,7 @@ defmodule PowerDNSex.Managers.RecordsManager do
 
   defp patch(%Zone{} = zone, %RRSet{} = rrset) do
     rrset_body = RRSet.as_body(rrset)
-    Logger.info "Request to [#{zone.name}] with params [#{rrset_body}]"
+    Logger.info("Request to [#{zone.name}] with params [#{rrset_body}]")
 
     zone.url
     |> HttpClient.patch!(rrset_body)
diff --git a/lib/powerdnsex/managers/zones_manager.ex b/lib/powerdnsex/managers/zones_manager.ex
index c7ec1ab..23bab1d 100644
--- a/lib/powerdnsex/managers/zones_manager.ex
+++ b/lib/powerdnsex/managers/zones_manager.ex
@@ -1,5 +1,4 @@
 defmodule PowerDNSex.Managers.ZonesManager do
-
   @default_server "localhost"
 
   alias PowerDNSex.HttpClient
@@ -15,19 +14,17 @@ defmodule PowerDNSex.Managers.ZonesManager do
 
   def show(zone_name, server_name \\ @default_server)
       when is_bitstring(zone_name) do
-
     server_name
     |> zone_path(zone_name)
-    |> HttpClient.get!
+    |> HttpClient.get!()
     |> process_request_response
   end
 
   def delete(zone_name, server_name \\ @default_server)
       when is_bitstring(zone_name) do
-
     server_name
     |> zone_path(zone_name)
-    |> HttpClient.delete!
+    |> HttpClient.delete!()
     |> process_request_response
   end
 
@@ -45,20 +42,25 @@ defmodule PowerDNSex.Managers.ZonesManager do
 
   defp process_request_response(%Response{body: body, status_code: status}) do
     case status do
-      s when s == 204 -> {:ok, %{}}
-      s when s < 300 -> {:ok, decode_body(body)}
+      s when s == 204 ->
+        {:ok, %{}}
+
+      s when s < 300 ->
+        {:ok, decode_body(body)}
+
       s when s == 500 ->
         {:error, %Error{error: "Internal Server Error", http_status_code: s}}
+
       s when s >= 300 ->
-        error = %{Poison.decode!(body,as: %Error{}) | http_status_code: s}
+        error = %{Poison.decode!(body, as: %Error{}) | http_status_code: s}
         {:error, error}
     end
   end
 
   defp decode_body(body) do
-    zone = body
-    |> Poison.decode!(as: %Zone{rrsets:
-                                [%ResourceRecordSet{records: [%Record{}]}]})
+    zone =
+      body
+      |> Poison.decode!(as: %Zone{rrsets: [%ResourceRecordSet{records: [%Record{}]}]})
 
     nameservers = ResourceRecordSet.nameservers(zone.rrsets)
     Map.put(zone, :nameservers, nameservers)
diff --git a/lib/powerdnsex/models/error.ex b/lib/powerdnsex/models/error.ex
index b4397df..c1626f0 100644
--- a/lib/powerdnsex/models/error.ex
+++ b/lib/powerdnsex/models/error.ex
@@ -1,5 +1,5 @@
 defmodule PowerDNSex.Models.Error do
   defstruct [:error, :http_status_code]
 
-  @type t :: %__MODULE__{error: String.t}
+  @type t :: %__MODULE__{error: String.t()}
 end
diff --git a/lib/powerdnsex/models/record.ex b/lib/powerdnsex/models/record.ex
index ed0e327..b73cd98 100644
--- a/lib/powerdnsex/models/record.ex
+++ b/lib/powerdnsex/models/record.ex
@@ -20,8 +20,8 @@ defmodule PowerDNSex.Models.Record do
   end
 
   def find(records, attrs) when is_list(records) do
-    Enum.find(records, fn(record) ->
-      Enum.all?(attrs, fn({attr, attr_value}) ->
+    Enum.find(records, fn record ->
+      Enum.all?(attrs, fn {attr, attr_value} ->
         Map.get(record, attr) == attr_value
       end)
     end)
diff --git a/lib/powerdnsex/models/resource_record_set.ex b/lib/powerdnsex/models/resource_record_set.ex
index 1a410b1..dbb90b3 100644
--- a/lib/powerdnsex/models/resource_record_set.ex
+++ b/lib/powerdnsex/models/resource_record_set.ex
@@ -1,5 +1,4 @@
 defmodule PowerDNSex.Models.ResourceRecordSet do
-
   alias PowerDNSex.Models.Record
 
   defstruct [:name, :type, :ttl, :records, :changetype]
@@ -10,21 +9,23 @@ defmodule PowerDNSex.Models.ResourceRecordSet do
   end
 
   def as_body(%__MODULE__{} = rrset) do
-    %{rrsets: [
-       %{
-         name: rrset.name,
-         type: rrset.type,
-         ttl: rrset.ttl,
-         changetype: rrset.changetype,
-         records: Record.as_body(rrset.records)
-       }
-    ]}
-    |> Poison.encode!
+    %{
+      rrsets: [
+        %{
+          name: rrset.name,
+          type: rrset.type,
+          ttl: rrset.ttl,
+          changetype: rrset.changetype,
+          records: Record.as_body(rrset.records)
+        }
+      ]
+    }
+    |> Poison.encode!()
   end
 
   def find(rrsets, %{} = attrs) when is_list(rrsets) do
-    Enum.find(rrsets, fn(rrset) ->
-      Enum.all?(attrs, fn({attr, attr_value}) ->
+    Enum.find(rrsets, fn rrset ->
+      Enum.all?(attrs, fn {attr, attr_value} ->
         if Enum.member?(Map.keys(%__MODULE__{}), attr) do
           equal_attr?(attr, attr_value, rrset)
         else
@@ -35,23 +36,26 @@ defmodule PowerDNSex.Models.ResourceRecordSet do
   end
 
   def update(%__MODULE__{} = rrset, %{} = new_attrs) do
-    Enum.reduce(@permited_attrs, rrset, fn(attr_name, rrset) ->
-                  case Map.fetch(new_attrs, attr_name) do
-                    {:ok, new_value} ->
-                      if attr_name == :records do
-                        new_value = Record.build(new_value)
-                      end
-                      %{rrset | attr_name => new_value}
-                    _ -> rrset
-                  end
-                end)
+    Enum.reduce(@permited_attrs, rrset, fn attr_name, rrset ->
+      case {attr_name, Map.fetch(new_attrs, attr_name)} do
+        {:records, {:ok, new_value}} ->
+          %{rrset | attr_name => Record.build(new_value)}
+
+        {_, {:ok, new_value}} ->
+          %{rrset | attr_name => new_value}
+
+        _ ->
+          rrset
+      end
+    end)
   end
 
   def nameservers(rrsets) do
-    rrset = Enum.find(rrsets, fn(rrset) -> rrset.type == "NS" end)
-    nameservers = case rrset do
+    rrset = Enum.find(rrsets, fn rrset -> rrset.type == "NS" end)
+
+    case rrset do
       nil -> []
-      _ -> Enum.map(rrset.records, &(&1.content) )
+      _ -> Enum.map(rrset.records, & &1.content)
     end
   end
 
@@ -62,10 +66,11 @@ defmodule PowerDNSex.Models.ResourceRecordSet do
 
   defp set_attrs(rrset, attr_name, attrs) do
     if Map.has_key?(attrs, attr_name) do
-      attr_value = case attr_name do
-                        :records -> Record.build(Map.fetch!(attrs, attr_name))
-                        _         -> Map.fetch!(attrs, attr_name)
-                   end
+      attr_value =
+        case attr_name do
+          :records -> Record.build(Map.fetch!(attrs, attr_name))
+          _ -> Map.fetch!(attrs, attr_name)
+        end
 
       %{rrset | attr_name => attr_value}
     else
@@ -80,7 +85,7 @@ defmodule PowerDNSex.Models.ResourceRecordSet do
 
   defp build_rrset(rrset_attrs) do
     %__MODULE__{}
-    |> Map.keys
-    |> Enum.reduce(%__MODULE__{}, &(set_attrs(&2, &1, rrset_attrs)))
+    |> Map.keys()
+    |> Enum.reduce(%__MODULE__{}, &set_attrs(&2, &1, rrset_attrs))
   end
 end
diff --git a/lib/powerdnsex/models/zone.ex b/lib/powerdnsex/models/zone.ex
index 8620443..96089e0 100644
--- a/lib/powerdnsex/models/zone.ex
+++ b/lib/powerdnsex/models/zone.ex
@@ -6,15 +6,26 @@ defmodule PowerDNSex.Models.Zone do
   @body_attrs ~w(account dns kind masters name nameservers records serial
                  soa_edit soa_edit_api)a
 
-  defstruct name: nil, kind: "Native", masters: [], nameservers: [], rrsets: [],
-            account: nil, comments: [], dnssec: false, id: nil, last_check: 0,
-            notified_serial: 0, serial: nil, soa_edit: "", soa_edit_api: "",
+  defstruct name: nil,
+            kind: "Native",
+            masters: [],
+            nameservers: [],
+            rrsets: [],
+            account: nil,
+            comments: [],
+            dnssec: false,
+            id: nil,
+            last_check: 0,
+            notified_serial: 0,
+            serial: nil,
+            soa_edit: "",
+            soa_edit_api: "",
             url: nil
 
   @type t :: %__MODULE__{}
 
   def as_body(%__MODULE__{} = zone) do
-    get_valid_attrs = fn({attr, value}, body) ->
+    get_valid_attrs = fn {attr, value}, body ->
       if Enum.member?(@body_attrs, attr) do
         Map.merge(body, %{attr => value})
       else
@@ -23,8 +34,8 @@ defmodule PowerDNSex.Models.Zone do
     end
 
     zone
-    |> Map.from_struct
+    |> Map.from_struct()
     |> Enum.reduce(%{}, get_valid_attrs)
-    |> Poison.encode!
+    |> Poison.encode!()
   end
 end
diff --git a/mix.exs b/mix.exs
index ee0a091..94fe8a5 100644
--- a/mix.exs
+++ b/mix.exs
@@ -2,14 +2,16 @@ defmodule PowerDNSex.Mixfile do
   use Mix.Project
 
   def project do
-    [app: :powerdnsex,
-     version: "0.1.0",
-     elixir: "~> 1.3",
-     description: description(),
-     package: package(),
-     build_embedded: Mix.env == :prod,
-     start_permanent: Mix.env == :prod,
-     deps: deps()]
+    [
+      app: :powerdnsex,
+      version: "0.2.0",
+      elixir: "~> 1.6",
+      description: description(),
+      package: package(),
+      build_embedded: Mix.env() == :prod,
+      start_permanent: Mix.env() == :prod,
+      deps: deps()
+    ]
   end
 
   def application do
@@ -17,9 +19,7 @@ defmodule PowerDNSex.Mixfile do
   end
 
   defp deps do
-    [{:httpoison, "~> 0.13.0"},
-     {:poison, "~> 2.2"},
-     {:exvcr, "~> 0.9.1", only: :test}]
+    [{:httpoison, "~> 1.5.0"}, {:poison, "~> 4.0.1"}, {:exvcr, "~> 0.10.3", only: :test}]
   end
 
   defp description do
@@ -29,9 +29,10 @@ defmodule PowerDNSex.Mixfile do
   end
 
   defp package do
-    [maintainers: ["Rodrigo Coutinho"],
-     licenses: ["MIT"],
-     links: %{"GitHub" => "https://github.com/digaoddc/power_dnsex"}
+    [
+      maintainers: ["Lindolfo Rodrigues"],
+      licenses: ["MIT"],
+      links: %{"GitHub" => "https://github.com/locaweb/power_dnsex"}
     ]
   end
 end
diff --git a/mix.lock b/mix.lock
index 4d9c60a..706f8df 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,14 +1,17 @@
-%{"certifi": {:hex, :certifi, "2.0.0", "a0c0e475107135f76b8c1d5bc7efb33cd3815cb3cf3dea7aefdd174dabead064", [:rebar3], [], "hexpm"},
+%{
+  "certifi": {:hex, :certifi, "2.4.2", "75424ff0f3baaccfd34b1214184b6ef616d89e420b258bb0a5ea7d7bc628f7f0", [:rebar3], [{:parse_trans, "~>3.3", [hex: :parse_trans, repo: "hexpm", optional: false]}], "hexpm"},
   "exactor": {:hex, :exactor, "2.2.4", "5efb4ddeb2c48d9a1d7c9b465a6fffdd82300eb9618ece5d34c3334d5d7245b1", [:mix], [], "hexpm"},
   "exjsx": {:hex, :exjsx, "4.0.0", "60548841e0212df401e38e63c0078ec57b33e7ea49b032c796ccad8cde794b5c", [:mix], [{:jsx, "~> 2.8.0", [hex: :jsx, repo: "hexpm", optional: false]}], "hexpm"},
-  "exvcr": {:hex, :exvcr, "0.9.1", "31e3936a790a14bf56b31b6b276577076a5ef8afd9b2d53ba3ff8bb647d45613", [:mix], [{:exactor, "~> 2.2", [hex: :exactor, repo: "hexpm", optional: false]}, {:exjsx, "~> 4.0", [hex: :exjsx, repo: "hexpm", optional: false]}, {:httpoison, "~> 0.13", [hex: :httpoison, repo: "hexpm", optional: true]}, {:httpotion, "~> 3.0", [hex: :httpotion, repo: "hexpm", optional: true]}, {:ibrowse, "~> 4.4", [hex: :ibrowse, repo: "hexpm", optional: true]}, {:meck, "~> 0.8.8", [hex: :meck, repo: "hexpm", optional: false]}], "hexpm"},
-  "hackney": {:hex, :hackney, "1.10.1", "c38d0ca52ea80254936a32c45bb7eb414e7a96a521b4ce76d00a69753b157f21", [:rebar3], [{:certifi, "2.0.0", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "5.1.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "1.0.1", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "1.0.2", [hex: :mimerl, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "1.1.1", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}], "hexpm"},
-  "httpoison": {:hex, :httpoison, "0.13.0", "bfaf44d9f133a6599886720f3937a7699466d23bb0cd7a88b6ba011f53c6f562", [:mix], [{:hackney, "~> 1.8", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm"},
-  "idna": {:hex, :idna, "5.1.0", "d72b4effeb324ad5da3cab1767cb16b17939004e789d8c0ad5b70f3cea20c89a", [:rebar3], [{:unicode_util_compat, "0.3.1", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm"},
+  "exvcr": {:hex, :exvcr, "0.10.3", "1ae3b97560430acfa88ebc737c85b2b7a9dbacd8a2b26789a19718b51ae3522c", [:mix], [{:exactor, "~> 2.2", [hex: :exactor, repo: "hexpm", optional: false]}, {:exjsx, "~> 4.0", [hex: :exjsx, repo: "hexpm", optional: false]}, {:httpoison, "~> 1.0", [hex: :httpoison, repo: "hexpm", optional: true]}, {:httpotion, "~> 3.1", [hex: :httpotion, repo: "hexpm", optional: true]}, {:ibrowse, "~> 4.4", [hex: :ibrowse, repo: "hexpm", optional: true]}, {:meck, "~> 0.8", [hex: :meck, repo: "hexpm", optional: false]}], "hexpm"},
+  "hackney": {:hex, :hackney, "1.15.0", "287a5d2304d516f63e56c469511c42b016423bcb167e61b611f6bad47e3ca60e", [:rebar3], [{:certifi, "2.4.2", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "6.0.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "1.0.1", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "1.0.2", [hex: :mimerl, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "1.1.4", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}], "hexpm"},
+  "httpoison": {:hex, :httpoison, "1.5.0", "71ae9f304bdf7f00e9cd1823f275c955bdfc68282bc5eb5c85c3a9ade865d68e", [:mix], [{:hackney, "~> 1.8", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm"},
+  "idna": {:hex, :idna, "6.0.0", "689c46cbcdf3524c44d5f3dde8001f364cd7608a99556d8fbd8239a5798d4c10", [:rebar3], [{:unicode_util_compat, "0.4.1", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm"},
   "jsx": {:hex, :jsx, "2.8.3", "a05252d381885240744d955fbe3cf810504eb2567164824e19303ea59eef62cf", [:mix, :rebar3], [], "hexpm"},
-  "meck": {:hex, :meck, "0.8.9", "64c5c0bd8bcca3a180b44196265c8ed7594e16bcc845d0698ec6b4e577f48188", [:rebar3], [], "hexpm"},
+  "meck": {:hex, :meck, "0.8.13", "ffedb39f99b0b99703b8601c6f17c7f76313ee12de6b646e671e3188401f7866", [:rebar3], [], "hexpm"},
   "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], [], "hexpm"},
   "mimerl": {:hex, :mimerl, "1.0.2", "993f9b0e084083405ed8252b99460c4f0563e41729ab42d9074fd5e52439be88", [:rebar3], [], "hexpm"},
-  "poison": {:hex, :poison, "2.2.0", "4763b69a8a77bd77d26f477d196428b741261a761257ff1cf92753a0d4d24a63", [:mix], [], "hexpm"},
-  "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.1", "28a4d65b7f59893bc2c7de786dec1e1555bd742d336043fe644ae956c3497fbe", [:make, :rebar], [], "hexpm"},
-  "unicode_util_compat": {:hex, :unicode_util_compat, "0.3.1", "a1f612a7b512638634a603c8f401892afbf99b8ce93a45041f8aaca99cadb85e", [:rebar3], [], "hexpm"}}
+  "parse_trans": {:hex, :parse_trans, "3.3.0", "09765507a3c7590a784615cfd421d101aec25098d50b89d7aa1d66646bc571c1", [:rebar3], [], "hexpm"},
+  "poison": {:hex, :poison, "4.0.1", "bcb755a16fac91cad79bfe9fc3585bb07b9331e50cfe3420a24bcc2d735709ae", [:mix], [], "hexpm"},
+  "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.4", "f0eafff810d2041e93f915ef59899c923f4568f4585904d010387ed74988e77b", [:make, :mix, :rebar3], [], "hexpm"},
+  "unicode_util_compat": {:hex, :unicode_util_compat, "0.4.1", "d869e4c68901dd9531385bb0c8c40444ebf624e60b6962d95952775cac5e90cd", [:rebar3], [], "hexpm"},
+}
diff --git a/script/clean b/script/clean
new file mode 100755
index 0000000..a0ac4b3
--- /dev/null
+++ b/script/clean
@@ -0,0 +1,3 @@
+#!/bin/bash
+docker-compose run --rm web rm -fr _build deps
+docker-compose down
diff --git a/script/common.sh b/script/common.sh
new file mode 100644
index 0000000..dffe136
--- /dev/null
+++ b/script/common.sh
@@ -0,0 +1,8 @@
+function power_dnsex_env {
+  local envs=$(env | egrep '^POWER_DNSEX_' | sed 's/^/ -e /')
+  local test_env=$( [[ -n "${BUILD_TAG}" ]] && printf " -e MIX_ENV=test" )
+  printf "%s " "$envs $test_env" | xargs printf " %s"
+}
+
+export WORKDIR="$(dirname "${BASH_SOURCE[0]}")/.."
+export DOCKER_COMPOSE="docker-compose -f $WORKDIR/docker-compose.yml"
diff --git a/script/coverage b/script/coverage
new file mode 100755
index 0000000..4c5cb0f
--- /dev/null
+++ b/script/coverage
@@ -0,0 +1,5 @@
+#!/bin/bash -xe
+
+source "$(dirname "${BASH_SOURCE[0]}")/common.sh"
+
+$DOCKER_COMPOSE run -T -e MIX_ENV=test $(power_dnsex_env) --rm web bash -c "mix coveralls.html </dev/null"
diff --git a/script/credo b/script/credo
new file mode 100755
index 0000000..74aae83
--- /dev/null
+++ b/script/credo
@@ -0,0 +1,7 @@
+#!/bin/bash -xe
+
+source "$(dirname "${BASH_SOURCE[0]}")/common.sh"
+
+CREDO_ARGS="$@"
+
+$DOCKER_COMPOSE run --rm -T $(power_dnsex_env) web mix credo $CREDO_ARGS
diff --git a/script/docs b/script/docs
new file mode 100755
index 0000000..1ad3f35
--- /dev/null
+++ b/script/docs
@@ -0,0 +1,5 @@
+#!/bin/bash -xe
+
+source "$(dirname "${BASH_SOURCE[0]}")/common.sh"
+
+$DOCKER_COMPOSE run --rm -T $(power_dnsex_env) web bash -c "mix docs </dev/null"
diff --git a/script/reset b/script/reset
new file mode 100755
index 0000000..cc60c14
--- /dev/null
+++ b/script/reset
@@ -0,0 +1,3 @@
+#!/bin/bash
+script/clean
+script/setup
diff --git a/script/run b/script/run
new file mode 100755
index 0000000..f62cc36
--- /dev/null
+++ b/script/run
@@ -0,0 +1,9 @@
+#!/bin/bash -xe
+
+source "$(dirname "${BASH_SOURCE[0]}")/common.sh"
+
+if [[ "$#" -gt 0 ]] ; then
+  $DOCKER_COMPOSE run --rm $(power_dnsex_env) web "$@"
+else
+  $DOCKER_COMPOSE run --service-ports --rm $(power_dnsex_env) web iex -S mix do hex.info
+fi
diff --git a/script/setup b/script/setup
new file mode 100755
index 0000000..1b1d49a
--- /dev/null
+++ b/script/setup
@@ -0,0 +1,6 @@
+#!/bin/bash -xe
+
+source "$(dirname "${BASH_SOURCE[0]}")/common.sh"
+
+$DOCKER_COMPOSE build && \
+$DOCKER_COMPOSE run $(power_dnsex_env) --rm -T web bash -c "mix do deps.clean --unused --unlock, deps.get --all, deps.compile </dev/null"
diff --git a/script/test b/script/test
new file mode 100755
index 0000000..cce14e4
--- /dev/null
+++ b/script/test
@@ -0,0 +1,7 @@
+#!/bin/bash -xe
+
+source "$(dirname "${BASH_SOURCE[0]}")/common.sh"
+
+TEST_ARGS="$@"
+
+$DOCKER_COMPOSE run -T -e MIX_ENV=test $(power_dnsex_env) --rm web bash -c "mix test $TEST_ARGS </dev/null"
diff --git a/test/lib/powerdnsex/config_test.exs b/test/lib/powerdnsex/config_test.exs
index 079b127..eca2e03 100644
--- a/test/lib/powerdnsex/config_test.exs
+++ b/test/lib/powerdnsex/config_test.exs
@@ -1,12 +1,11 @@
 defmodule PowerDNSex.ConfigTest do
-
   use ExUnit.Case, async: true
 
   alias PowerDNSex.FakeConfig, as: Config
 
-  setup do: Config.set_url
-  setup do: Config.set_token
-  setup do: Config.set_url && Config.set_token
+  setup do: Config.set_url()
+  setup do: Config.set_token()
+  setup do: Config.set_url() && Config.set_token()
 
   describe "Config.powerdns_token/0" do
     @tag :configs
@@ -14,12 +13,12 @@ defmodule PowerDNSex.ConfigTest do
       env_token = "new-token"
       System.put_env("POWERDNS_TOKEN", env_token)
       Application.put_env(:powerdnsex, :token, {:system, "POWERDNS_TOKEN"})
-      assert PowerDNSex.Config.powerdns_token == env_token
+      assert PowerDNSex.Config.powerdns_token() == env_token
     end
 
     @tag :configs
     test "using application config" do
-      assert PowerDNSex.Config.powerdns_token == Config.token
+      assert PowerDNSex.Config.powerdns_token() == Config.token()
     end
 
     @tag :configs
@@ -28,7 +27,7 @@ defmodule PowerDNSex.ConfigTest do
       expected_error = "[PowerDNSex] PowerDNS token not configured."
 
       assert_raise RuntimeError, expected_error, fn ->
-        PowerDNSex.Config.powerdns_token
+        PowerDNSex.Config.powerdns_token()
       end
     end
   end
@@ -39,20 +38,21 @@ defmodule PowerDNSex.ConfigTest do
       env_url = "https://env-powerdns.test/"
       System.put_env("POWERDNS_URL", env_url)
       Application.put_env(:powerdnsex, :url, {:system, "POWERDNS_URL"})
-      assert PowerDNSex.Config.powerdns_url == env_url
+      assert PowerDNSex.Config.powerdns_url() == env_url
     end
 
     @tag :configs
     test "using application config" do
-      assert PowerDNSex.Config.powerdns_url == Config.url <> "/"
+      assert PowerDNSex.Config.powerdns_url() == Config.url() <> "/"
     end
 
     @tag :configs
     test "given none url config" do
       Application.delete_env(:powerdnsex, :url)
       expected_error = "[PowerDNSex] PowerDNS url not configured."
+
       assert_raise RuntimeError, expected_error, fn ->
-        PowerDNSex.Config.powerdns_url
+        PowerDNSex.Config.powerdns_url()
       end
     end
   end
diff --git a/test/lib/powerdnsex/managers/records_manager_test.exs b/test/lib/powerdnsex/managers/records_manager_test.exs
index 4c83b40..7de02ab 100644
--- a/test/lib/powerdnsex/managers/records_manager_test.exs
+++ b/test/lib/powerdnsex/managers/records_manager_test.exs
@@ -1,5 +1,4 @@
 defmodule PowerDNSex.Managers.RecordsManagerTest do
-
   use ExUnit.Case, async: false
   use ExVCR.Mock, adapter: ExVCR.Adapter.Hackney
 
@@ -17,7 +16,7 @@ defmodule PowerDNSex.Managers.RecordsManagerTest do
 
   @valid_zone %Zone{
     name: "my-domain.art.",
-    url: "api/v1/servers/localhost/zones/my-domain.art.", 
+    url: "api/v1/servers/localhost/zones/my-domain.art.",
     rrsets: [@record]
   }
 
@@ -50,19 +49,23 @@ defmodule PowerDNSex.Managers.RecordsManagerTest do
   }
 
   setup do
-    Config.set_url
-    Config.set_token
+    Config.set_url()
+    Config.set_token()
+
+    ExVCR.Config.cassette_library_dir(
+      "test/support/cassettes",
+      "test/support/custom_cassettes"
+    )
 
-    ExVCR.Config.cassette_library_dir("test/support/cassettes",
-      "test/support/custom_cassettes")
-    HTTPoison.start
+    HTTPoison.start()
   end
 
   describe "create/2" do
     @tag :records_manager_create
     test "exception given empty zones url" do
       raise_msg = "[Records Manager] Zone URL attribute is empty!"
-      assert_raise RuntimeError, raise_msg, fn() ->
+
+      assert_raise RuntimeError, raise_msg, fn ->
         RecordsManager.create(%Zone{}, %Record{})
       end
     end
@@ -80,9 +83,7 @@ defmodule PowerDNSex.Managers.RecordsManagerTest do
     test "content given attrs of a valid record" do
       use_cassette "records_manager/show/success" do
         zone_name = @valid_zone.name
-        attrs = %{name: "new-record.#{zone_name}",
-                  type: "A",
-                  content: "127.0.0.1"}
+        attrs = %{name: "new-record.#{zone_name}", type: "A", content: "127.0.0.1"}
 
         record = RecordsManager.show(zone_name, attrs)
         assert record.name == attrs.name
diff --git a/test/lib/powerdnsex/managers/zones_manager_test.exs b/test/lib/powerdnsex/managers/zones_manager_test.exs
index 9c011e9..1b4982e 100644
--- a/test/lib/powerdnsex/managers/zones_manager_test.exs
+++ b/test/lib/powerdnsex/managers/zones_manager_test.exs
@@ -1,5 +1,4 @@
 defmodule PowerDNSex.Managers.ZonesManagerTest do
-
   use ExUnit.Case, async: false
   use ExVCR.Mock, adapter: ExVCR.Adapter.Hackney
 
@@ -11,9 +10,11 @@ defmodule PowerDNSex.Managers.ZonesManagerTest do
   @invalid_not_canonical %Zone{name: "not-canonical-domain.tst"}
   @unknown_name "it-will-never-exist.on.the.art."
 
-  @valid_zone_test %Zone{name: "my-domain.art.",
-                         serial: 2_016_060_601,
-                         comments: ["Test comment"] }
+  @valid_zone_test %Zone{
+    name: "my-domain.art.",
+    serial: 2_016_060_601,
+    comments: ["Test comment"]
+  }
 
   @expected_rrset [
     %RRSet{
@@ -21,10 +22,13 @@ defmodule PowerDNSex.Managers.ZonesManagerTest do
       ttl: 3600,
       type: "SOA",
       records: [
-        %Record{content: "a.misconfigured.powerdns.server. " <>
-                         "hostmaster.my-domain.art. " <>
-                         "2016060601 10800 3600 604800 3600",
-                disabled: false}
+        %Record{
+          content:
+            "a.misconfigured.powerdns.server. " <>
+              "hostmaster.my-domain.art. " <>
+              "2016060601 10800 3600 604800 3600",
+          disabled: false
+        }
       ]
     },
     %RRSet{
@@ -32,27 +36,31 @@ defmodule PowerDNSex.Managers.ZonesManagerTest do
       ttl: 3600,
       type: "NS",
       records: [
-        %Record{content: "ns1.domain.com",
-                disabled: false}
+        %Record{content: "ns1.domain.com", disabled: false}
       ]
     }
   ]
 
-  @expected_zone %Zone{name: "my-domain.art.",
-                       id: "my-domain.art.",
-                       account: "",
-                       serial: 2_016_060_601,
-                       url: "api/v1/servers/localhost/zones/my-domain.art.",
-                       nameservers: ["ns1.domain.com"],
-                       rrsets: @expected_rrset}
+  @expected_zone %Zone{
+    name: "my-domain.art.",
+    id: "my-domain.art.",
+    account: "",
+    serial: 2_016_060_601,
+    url: "api/v1/servers/localhost/zones/my-domain.art.",
+    nameservers: ["ns1.domain.com"],
+    rrsets: @expected_rrset
+  }
 
   setup do
-    Config.set_url
-    Config.set_token
+    Config.set_url()
+    Config.set_token()
+
+    ExVCR.Config.cassette_library_dir(
+      "test/support/cassettes",
+      "test/support/custom_cassettes"
+    )
 
-    ExVCR.Config.cassette_library_dir("test/support/cassettes",
-                                      "test/support/custom_cassettes")
-    HTTPoison.start
+    HTTPoison.start()
   end
 
   describe "ZoneManager.create/2" do
diff --git a/test/lib/powerdnsex/models/resource_record_set_test.exs b/test/lib/powerdnsex/models/resource_record_set_test.exs
index 9533beb..41838cc 100644
--- a/test/lib/powerdnsex/models/resource_record_set_test.exs
+++ b/test/lib/powerdnsex/models/resource_record_set_test.exs
@@ -1,5 +1,4 @@
 defmodule PowerDNSex.Models.ResourceRecordSetTest do
-
   use ExUnit.Case, async: true
 
   alias PowerDNSex.Models.{Record}
@@ -10,25 +9,22 @@ defmodule PowerDNSex.Models.ResourceRecordSetTest do
 
   @domain "my-domain.art."
 
-  @record_ns %RRSet {
+  @record_ns %RRSet{
     name: "my-domain.art.",
     ttl: 3600,
     type: "NS",
     records: [
-      %Record{content: @ns_content,
-              disabled: false},
-      %Record{content: @ns2_content,
-              disabled: false}
+      %Record{content: @ns_content, disabled: false},
+      %Record{content: @ns2_content, disabled: false}
     ]
   }
 
-  @record_a %RRSet {
+  @record_a %RRSet{
     name: "store.my-domain.art.",
     ttl: 3600,
     type: "A",
     records: [
-      %Record{content: "182.23.2.3",
-              disabled: false}
+      %Record{content: "182.23.2.3", disabled: false}
     ]
   }
 
@@ -49,11 +45,21 @@ defmodule PowerDNSex.Models.ResourceRecordSetTest do
 
   describe "build/1" do
     test "build a record" do
-      raw_rrset = %{name: @domain, type: 'A', ttl: 3600, records: [ %{content: "192.168.0.1", disabled: false} ] }
-      rrset = %RRSet{changetype: nil,
-                     name: "my-domain.art.",
-                     records: [%PowerDNSex.Models.Record{content: "192.168.0.1",
-                                disabled: false}], ttl: 3600, type: 'A'}
+      raw_rrset = %{
+        name: @domain,
+        type: 'A',
+        ttl: 3600,
+        records: [%{content: "192.168.0.1", disabled: false}]
+      }
+
+      rrset = %RRSet{
+        changetype: nil,
+        name: "my-domain.art.",
+        records: [%PowerDNSex.Models.Record{content: "192.168.0.1", disabled: false}],
+        ttl: 3600,
+        type: 'A'
+      }
+
       assert RRSet.build(raw_rrset) == rrset
     end
   end
@@ -70,20 +76,22 @@ defmodule PowerDNSex.Models.ResourceRecordSetTest do
 
   describe "update/2" do
     test "update passing all attributes" do
-      new_attrs = %{name: "page.my-domain.art.",
-                    records: [%{content: "192.168.0.1", disabled: false}],
-                    ttl: "3600", type: "A"}
-
-      new_record  = %PowerDNSex.Models.ResourceRecordSet{changetype: nil,
-                                                         name: "store.my-domain.art.",
-                                                         records: [
-                                                           %PowerDNSex.Models.Record{
-                                                             content: "192.168.0.1",
-                                                             disabled: false}],
-                                                         type: "A",
-                                                         ttl: "3600"}
-
-      assert RRSet.update(@record_a, new_attrs) ==  new_record
+      new_attrs = %{
+        name: "page.my-domain.art.",
+        records: [%{content: "192.168.0.1", disabled: false}],
+        ttl: "3600",
+        type: "A"
+      }
+
+      new_record = %PowerDNSex.Models.ResourceRecordSet{
+        changetype: nil,
+        name: "store.my-domain.art.",
+        records: [%PowerDNSex.Models.Record{content: "192.168.0.1", disabled: false}],
+        type: "A",
+        ttl: "3600"
+      }
+
+      assert RRSet.update(@record_a, new_attrs) == new_record
     end
   end
 end
diff --git a/test/lib/powerdnsex/models/zone_test.exs b/test/lib/powerdnsex/models/zone_test.exs
index e69de29..8b13789 100644
--- a/test/lib/powerdnsex/models/zone_test.exs
+++ b/test/lib/powerdnsex/models/zone_test.exs
@@ -0,0 +1 @@
+
diff --git a/test/lib/powerdnsex/powerdnsex_test.exs b/test/lib/powerdnsex/powerdnsex_test.exs
index 10f8e7a..92e7f91 100644
--- a/test/lib/powerdnsex/powerdnsex_test.exs
+++ b/test/lib/powerdnsex/powerdnsex_test.exs
@@ -1,14 +1,16 @@
 defmodule PowerDNSexTest do
-
   use ExUnit.Case, async: false
   use ExVCR.Mock, adapter: ExVCR.Adapter.Hackney
 
   setup do
-    Config.set_url
-    Config.set_token
+    Config.set_url()
+    Config.set_token()
+
+    ExVCR.Config.cassette_library_dir(
+      "test/support/cassettes",
+      "test/support/custom_cassettes"
+    )
 
-    ExVCR.Config.cassette_library_dir("test/support/cassettes",
-                                      "test/support/custom_cassettes")
-    HTTPoison.start
+    HTTPoison.start()
   end
 end
diff --git a/test/support/fake_config.exs b/test/support/fake_config.exs
index 0c27d93..c8f4f60 100644
--- a/test/support/fake_config.exs
+++ b/test/support/fake_config.exs
@@ -2,7 +2,6 @@ defmodule PowerDNSex.FakeConfig do
   @app_config_token "S3cr37_70k3n"
   @app_config_url "https://my-powerdns.api"
 
-
   def set_url, do: Application.put_env(:powerdnsex, :url, @app_config_url)
   def set_token, do: Application.put_env(:powerdnsex, :token, @app_config_token)
 
diff --git a/test/test_helper.exs b/test/test_helper.exs
index 2fc6291..f0625ca 100644
--- a/test/test_helper.exs
+++ b/test/test_helper.exs
@@ -2,8 +2,8 @@ ExUnit.start()
 
 {:ok, files} = File.ls("./test/support/")
 
-Enum.each files, fn(file) ->
+Enum.each(files, fn file ->
   if String.match?(file, ~r/(.*).exs$/) do
-    Code.require_file "support/#{file}", __DIR__
+    Code.require_file("support/#{file}", __DIR__)
   end
-end
+end)