Add mix test.watch

lib/context.ex

@@ -1,5 +1,4 @@
 defmodule Metrix.Context do
-
   use Agent
 
   @doc """
@@ -8,6 +7,7 @@ defmodule Metrix.Context do
   def start_link(initial_context) when is_list(initial_context) do
     Enum.into(initial_context, %{}) |> start_link
   end
+
   def start_link(initial_context) when is_map(initial_context) do
     Agent.start_link(fn -> initial_context end, name: __MODULE__)
   end
@@ -16,13 +16,14 @@ defmodule Metrix.Context do
   Gets current context
   """
   def get do
-    Agent.get(__MODULE__, &(&1))
+    Agent.get(__MODULE__, & &1)
   end
 
   @doc """
   Adds the `metadata` to the context
   """
   def put(metadata) when is_list(metadata), do: Enum.into(metadata, %{}) |> put
+
   def put(metadata) when is_map(metadata) do
     Agent.update(__MODULE__, &Map.merge(&1, metadata))
   end

mix.exs

@@ -2,21 +2,22 @@ defmodule Metrix.Mixfile do
   use Mix.Project
 
   def project do
-    [app: :metrix,
-     version: "1.0.0",
-     description: description(),
-     elixir: ">= 1.3.0",
-     deps: deps(),
-     package: package(),
-     source_url: "https://github.com/rwdaigle/metrix"]
+    [
+      app: :metrix,
+      version: "1.0.0",
+      description: description(),
+      elixir: ">= 1.3.0",
+      deps: deps(),
+      package: package(),
+      source_url: "https://github.com/rwdaigle/metrix"
+    ]
   end
 
   # Configuration for the OTP application
   #
   # Type `mix help compile.app` for more information
   def application do
-    [applications: [:logger, :logfmt],
-     mod: {Metrix, []}]
+    [applications: [:logger, :logfmt], mod: {Metrix, []}]
   end
 
   # Dependencies can be Hex packages:
@@ -30,7 +31,8 @@ defmodule Metrix.Mixfile do
   # Type `mix help deps` for more examples and options
   defp deps do
     [
-      {:logfmt, "~> 3.3"}
+      {:logfmt, "~> 3.3"},
+      {:mix_test_watch, "~> 1.0", only: [:dev, :test], runtime: false}
     ]
   end
 
@@ -50,7 +52,8 @@ defmodule Metrix.Mixfile do
         "Kevin Lewis <[email protected]>",
         "Emanuel Evans <[email protected]>",
         "Stephen Ball <[email protected]>",
-        "David Santoso"],
+        "David Santoso"
+      ],
       licenses: ["MIT"],
       links: %{"GitHub" => "https://github.com/rwdaigle/metrix"},
       files: ~w(mix.exs lib README.md)

mix.lock

@@ -1,3 +1,5 @@
 %{
-  "logfmt": {:hex, :logfmt, "3.3.3", "6521ee4a5c532088e15d487fab9f736c07bdd161d643560c73cd4b10685deb65", [:mix], [], "hexpm", "dbd51cd3fe37c3429b9bd687bad1f531a533505f4a641592129e7a47e24104d1"}
+  "file_system": {:hex, :file_system, "1.0.0", "b689cc7dcee665f774de94b5a832e578bd7963c8e637ef940cd44327db7de2cd", [:mix], [], "hexpm", "6752092d66aec5a10e662aefeed8ddb9531d79db0bc145bb8c40325ca1d8536d"},
+  "logfmt": {:hex, :logfmt, "3.3.3", "6521ee4a5c532088e15d487fab9f736c07bdd161d643560c73cd4b10685deb65", [:mix], [], "hexpm", "dbd51cd3fe37c3429b9bd687bad1f531a533505f4a641592129e7a47e24104d1"},
+  "mix_test_watch": {:hex, :mix_test_watch, "1.2.0", "1f9acd9e1104f62f280e30fc2243ae5e6d8ddc2f7f4dc9bceb454b9a41c82b42", [:mix], [{:file_system, "~> 0.2 or ~> 1.0", [hex: :file_system, repo: "hexpm", optional: false]}], "hexpm", "278dc955c20b3fb9a3168b5c2493c2e5cffad133548d307e0a50c7f2cfbf34f6"},
 }