add maru_testing example

maru_testing/.gitignore

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+# The directory Mix will write compiled artifacts to.
+/_build
+
+# If you run "mix test --cover", coverage assets end up here.
+/cover
+
+# The directory Mix downloads your dependencies sources to.
+/deps
+
+# Where 3rd-party dependencies like ExDoc output generated docs.
+/doc
+
+# If the VM crashes, it generates a dump, let's ignore it too.
+erl_crash.dump
+
+# Also ignore archive artifacts (built via "mix archive.build").
+*.ez

maru_testing/README.md

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+# MaruTesting
+
+**TODO: Add description**
+
+## Installation
+
+If [available in Hex](https://hex.pm/docs/publish), the package can be installed as:
+
+  1. Add `maru_testing` to your list of dependencies in `mix.exs`:
+
+    ```elixir
+    def deps do
+      [{:maru_testing, "~> 0.1.0"}]
+    end
+    ```
+
+  2. Ensure `maru_testing` is started before your application:
+
+    ```elixir
+    def application do
+      [applications: [:maru_testing]]
+    end
+    ```
+

maru_testing/config/config.exs

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+# This file is responsible for configuring your application
+# and its dependencies with the aid of the Mix.Config module.
+use Mix.Config
+
+# This configuration is loaded before any dependency and is restricted
+# to this project. If another project depends on this project, this
+# file won't be loaded nor affect the parent project. For this reason,
+# if you want to provide default values for your application for
+# 3rd-party users, it should be done in your "mix.exs" file.
+
+# You can configure for your application as:
+#
+#     config :maru_testing, key: :value
+#
+# And access this configuration in your application as:
+#
+#     Application.get_env(:maru_testing, :key)
+#
+# Or configure a 3rd-party app:
+#
+#     config :logger, level: :info
+#
+
+# It is also possible to import configuration files, relative to this
+# directory. For example, you can emulate configuration per environment
+# by uncommenting the line below and defining dev.exs, test.exs and such.
+# Configuration from the imported file will override the ones defined
+# here (which is why it is important to import them last).
+#
+#     import_config "#{Mix.env}.exs"

maru_testing/lib/maru_testing.ex

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+defmodule MaruTesting do
+end
+
+defmodule NUL do
+  def init([]), do: []
+  def call(conn, []) do
+    conn
+  end
+end
+
+defmodule TA do
+  def init([]), do: []
+  def call(conn, []) do
+    conn |> Plug.Conn.put_private(:maru_plug_ta, 0)
+  end
+end
+
+defmodule TB1 do
+  def init([]), do: []
+  def call(conn, []) do
+    conn |> Plug.Conn.put_private(:maru_plug_tb, 1)
+  end
+end
+
+defmodule TB2 do
+  def init([]), do: []
+  def call(conn, []) do
+    conn |> Plug.Conn.put_private(:maru_plug_tb, 2)
+  end
+end
+
+defmodule A1 do
+  use Maru.Router
+
+  pipeline do
+    plug_overridable :test_a, NUL
+  end
+  get do
+    text(conn, "A1")
+  end
+end
+
+defmodule A2 do
+  use Maru.Router
+
+  get do
+    text(conn, "A2")
+  end
+end
+
+
+defmodule B1 do
+  use Maru.Router
+  plug_overridable :test_b, TB1
+
+  mount A1
+  mount A2
+end
+
+defmodule B2 do
+  use Maru.Router
+  plug_overridable :test_b, TB2
+
+  mount A1
+  mount A2
+end
+
+defmodule API do
+  use Maru.Router
+  plug_overridable :test_a, TA
+
+  mount B1
+  mount B2
+end

maru_testing/mix.exs

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+defmodule MaruTesting.Mixfile do
+  use Mix.Project
+
+  def project do
+    [ app: :maru_testing,
+      version: "0.1.0",
+      elixir: "~> 1.3",
+      build_embedded: Mix.env == :prod,
+      start_permanent: Mix.env == :prod,
+      deps: deps(),
+    ]
+  end
+
+  def application do
+    [applications: [:logger, :maru]]
+  end
+
+  defp deps do
+    [{:maru, github: "falood/maru"}]
+  end
+end

maru_testing/mix.lock

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+%{"cowboy": {:hex, :cowboy, "1.0.4", "a324a8df9f2316c833a470d918aaf73ae894278b8aa6226ce7a9bf699388f878", [:make, :rebar], [{:cowlib, "~> 1.0.0", [hex: :cowlib, optional: false]}, {:ranch, "~> 1.0", [hex: :ranch, optional: false]}]},
+  "cowlib": {:hex, :cowlib, "1.0.2", "9d769a1d062c9c3ac753096f868ca121e2730b9a377de23dec0f7e08b1df84ee", [:make], []},
+  "maru": {:git, "https://github.com/falood/maru.git", "f1304c2a354bafe1fc1e3fabd8d6fcf6108e2a7f", []},
+  "mime": {:hex, :mime, "1.0.1", "05c393850524767d13a53627df71beeebb016205eb43bfbd92d14d24ec7a1b51", [:mix], []},
+  "plug": {:hex, :plug, "1.2.2", "cfbda521b54c92ab8ddffb173fbaabed8d8fc94bec07cd9bb58a84c1c501b0bd", [:mix], [{:cowboy, "~> 1.0", [hex: :cowboy, optional: true]}, {:mime, "~> 1.0", [hex: :mime, optional: false]}]},
+  "poison": {:hex, :poison, "3.0.0", "625ebd64d33ae2e65201c2c14d6c85c27cc8b68f2d0dd37828fde9c6920dd131", [:mix], []},
+  "ranch": {:hex, :ranch, "1.2.1", "a6fb992c10f2187b46ffd17ce398ddf8a54f691b81768f9ef5f461ea7e28c762", [:make], []}}

maru_testing/test/maru_testing_test.exs

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+defmodule MaruTestingTest do
+  use ExUnit.Case
+  doctest MaruTesting
+end
+
+defmodule B1A1Test do
+  use ExUnit.Case
+  use Maru.Test, for: B1 |> A1
+
+  test "/" do
+    private = get("/").private
+    assert 1 == private.maru_plug_tb
+    assert false == Map.has_key?(private, :maru_plug_ta)
+  end
+end
+
+defmodule B1A2Test do
+  use ExUnit.Case
+  use Maru.Test, for: B1 |> A2
+
+  test "/" do
+    private = get("/").private
+    assert 1 == private.maru_plug_tb
+    assert 0 == private.maru_plug_ta
+  end
+end
+
+defmodule B2A1Test do
+  use ExUnit.Case
+  use Maru.Test, for: B2 |> A1
+
+  test "/" do
+    private = get("/").private
+    assert 2 == private.maru_plug_tb
+    assert false == Map.has_key?(private, :maru_plug_ta)
+  end
+end
+
+defmodule B2A2Test do
+  use ExUnit.Case
+  use Maru.Test, for: B2 |> A2
+
+  test "/" do
+    private = get("/").private
+    assert 2 == private.maru_plug_tb
+    assert 0 == private.maru_plug_ta
+  end
+end

maru_testing/test/test_helper.exs

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+ExUnit.start()
+Maru.Test.start()