require File.expand_path('../../spec_helper', __FILE__)

describe 'stub' do
  include StubDefinitionCreatorHelpers

  context 'against instance methods', method_type: :instance do
    context 'that exist', methods_exist: true do
      include_context 'tests for a double definition creator method that supports stubbing'
    end

    context 'that do not exist', methods_exist: false do
      include_context 'tests for a double definition creator method that supports stubbing'
    end
  end

  context 'against class methods', method_type: :class do
    context 'that exist', methods_exist: true do
      include_context 'tests for a double definition creator method that supports stubbing'
    end

    context 'that do not exist', methods_exist: false do
      include_context 'tests for a double definition creator method that supports stubbing'
    end
  end

  def double_definition_creator_for(object, &block)
    stub(object, &block)
  end

  def expect_that_double_can_be_defined_without_block
    _, _, return_value =
      build_object_with_doubled_method_which_is_called('value', nil)
    expect(return_value).to eq nil
  end

  def expect_that_double_sets_implementation(&block)
    _, _, return_value =
      build_object_with_doubled_method_which_is_called('old value', -> { 'new value' }, &block)
    expect(return_value).to eq 'new value'
  end

  def expect_that_double_sets_implementation_and_resets(&block)
    object, method_name, return_value =
      build_object_with_doubled_method_which_is_reset_and_called('old value', -> { 'new value' }, &block)

    if methods_being_doubled_exist_already?
      # This doesn't work quite yet - see btakita#44
      #expect(object).not_to respond_to(method_name)
    else
      expect(return_value).to eq 'old value'
    end
  end

  def expect_that_double_sets_value(&block)
    _, _, return_value =
      build_object_with_doubled_method_which_is_called('old value', 'new value', &block)
    expect(return_value).to eq 'new value'
  end

  def expect_that_double_sets_value_and_resets(&block)
    _, _, return_value =
      build_object_with_doubled_method_which_is_reset_and_called('old value', 'new value', &block)

    if methods_being_doubled_exist_already?
      # This doesn't work quite yet - see btakita#44
      #expect(object).not_to respond_to(method_name)
    else
      expect(return_value).to eq 'old value'
    end
  end
end