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pavlov

0.1.0
0.2.3 0.2.2 0.2.1 0.2.0 0.1.2 0.1.1 0.1.0

Pavlov is a BDD library for your Elixir projects, allowing you to write expressive unit tests that tell the story of how your application behaves. The syntax tries to follow RSpec's wherever possible.

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pavlov lib mocks.ex
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lib/mocks.ex 

defmodule Pavlov.Mocks do

  @moduledoc """

  Use this module to mock methods on a given module.



  ## Example

    defmodule MySpec do

      use Pavlov.Mocks



      describe "My Tests" do

        ...

      end

    end

  """



  import ExUnit.Callbacks



  defmacro __using__(_) do

    quote do

      import Pavlov.Mocks

      import Pavlov.Mocks.Matchers

    end

  end



  @doc """

  Prepares a module for stubbing. Used in conjunction with

  `.to_receive`.



  ## Example

      allow MyModule |> to_receive(...)

  """

  def allow(module, opts \\ [:no_link]) do

    :meck.new(module, opts)



    # Unload the module once the test exits

    on_exit fn ->

      :meck.unload(module)

    end



    module

  end



  @doc """

  Mocks a function on a module. Used in conjunction with

  `allow`.



  ## Example

      allow MyModule |> to_receive(get: fn(url) -> "<html></html>" end)



  For a method that takes no arguments and returns nil, you may use a

  simpler syntax:

      allow MyModule |> to_receive(:simple_method)

  """

  def to_receive(module, mock) when is_list mock do

    {mock, value} = hd(mock)

    :meck.expect(module, mock, value)

    {module, mock, value}

  end

  def to_receive(module, mock) do

    value = fn -> nil end

    :meck.expect(module, mock, value)

    {module, mock, value}

  end



end