RSpec | rspec-core shared examples

概要

rspec-core shared examples

詳細

shared examplesは複数のexample間で共有するexampleを定義できます。
include_examplesで呼び出します。

alias

main	alias
shared_examples	shared_context
shared_examples	shared_examples_for
include_examples	include_context

shared_examples,shared_context,shared_examples_forのコード

https://github.com/rspec/rspec-core/blob/master/lib/rspec/core/shared_example_group.rb

include_examples,include_contextのコード

https://github.com/rspec/rspec-core/blob/master/lib/rspec/core/example_group.rb

サンプルコード（プロダクトコード）

# encoding: utf-8

class Hoge
  def hoge1
    "hoge"
  end

  def hoge2
    "hoge"
  end

  def hige1
    "hige"
  end

  def hige2
    "hige"
  end
end

サンプルコード（テストコード）

# encoding: utf-8
require "spec_helper"
require "hoge"

describe Hoge do
  shared_examples "hoge" do |instance, method|
    it "is return hoge" do
      expect(instance.send(method)).to eq("hoge")
    end
  end

  shared_context "hige" do |instance, method|
    it "is return hige" do
      expect(instance.send(method)).to eq("hige")
    end
  end

  context do
    include_examples "hoge", Hoge.new, "hoge1"
  end

  context do
    include_examples "hoge", Hoge.new, "hoge2"
  end

  context do
    include_context "hige", Hoge.new, "hige1"
  end

  context do
    include_context "hige", Hoge.new, "hige2"
  end
end