Use Appraisal to test multiple versions of AMS

closes #1

.travis.yml

@@ -4,6 +4,11 @@ env:
  global:
  - CC_TEST_REPORTER_ID=1da1af59767d8c64ae960d5a0ac69089a0fa90e013aedb09e76843f104bec709
 language: ruby
+gemfile:
+ - gemfiles/ams_0.9.gemfile
+ - gemfiles/ams_0.10.0.rc4.gemfile
+ - gemfiles/ams_0.10.2.gemfile
+ - gemfiles/ams_0.10.8.gemfile
 cache: bundler
 rvm:
  - 2.3.4
@@ -15,7 +20,7 @@ before_script:
  - chmod +x ./cc-test-reporter
  - ./cc-test-reporter before-build
 script:
- - bundle exec rake
+ - bundle exec appraisal rake spec
  - git pull origin master:master
  - undercover --compare master
 after_script:

Appraisals

@@ -0,0 +1,15 @@
+appraise "ams-0.9" do
+ gem "active_model_serializers", "0.9.7"
+end
+
+appraise "ams-0.10.0.rc4" do
+ gem "active_model_serializers", "0.10.0.rc4"
+end
+
+appraise "ams-0.10.2" do
+ gem "active_model_serializers", "0.10.2"
+end
+
+appraise "ams-0.10.8" do
+ gem "active_model_serializers", "0.10.8"
+end

Gemfile.lock

@@ -37,6 +37,10 @@ GEM
  i18n (>= 0.7, < 2)
  minitest (~> 5.1)
  tzinfo (~> 1.1)
+ appraisal (2.2.0)
+ bundler
+ rake
+ thor (>= 0.14.0)
  arel (9.0.0)
  ast (2.4.0)
  batch-loader (1.2.2)
@@ -153,6 +157,7 @@ PLATFORMS
 DEPENDENCIES
  activerecord
  ams_lazy_relationships!
+ appraisal
  bundler (~> 1.17)
  db-query-matchers
  pry

ams_lazy_relationships.gemspec

@@ -37,6 +37,8 @@ Gem::Specification.new do |spec|
  spec.add_dependency "batch-loader", "=1.2.2"
 
  spec.add_development_dependency "activerecord"
+ # A Ruby library for testing against different versions of dependencies
+ spec.add_development_dependency "appraisal"
  spec.add_development_dependency "bundler", "~> 1.17"
  # Rspec matchers for SQL query counts
  spec.add_development_dependency "db-query-matchers"

lib/ams_lazy_relationships/core.rb

@@ -158,12 +158,17 @@ def define_lazy_association(type, name, options, block)
 
  def find_reflection(name)
  # In 0.10.3 this private API has changed
- if Gem::Version.new(ActiveModel::Serializer::VERSION) >= Gem::Version.new("0.10.3")
+ if supports_reflections_hash?
  _reflections[name.to_sym]
  else
  _reflections.find { |r| r.name.to_sym == name.to_sym }
  end
  end
+
+ def supports_reflections_hash?
+ @supports_reflections_hash ||=
+ Gem::Version.new(ActiveModel::Serializer::VERSION) >= Gem::Version.new("0.10.3")
+ end
  end
 
  module Initializer

spec/core/json_api_spec.rb

@@ -4,6 +4,8 @@
 require "active_model_serializers"
 
 RSpec.describe AmsLazyRelationships::Core do
+ next if Gem::Version.new(ActiveModel::Serializer::VERSION) < Gem::Version.new("0.10.0.rc1")
+
  extend WithArModels
 
  with_ar_models
@@ -22,6 +24,7 @@ class BaseTestSerializer < ActiveModel::Serializer
  let(:includes) do
  []
  end
+
  let(:json) do
  ActiveModelSerializers::Adapter::JsonApi.new(
  serializer, include: includes
@@ -214,6 +217,10 @@ def initialize(object)
  attr_reader :object
 
  delegate :id, :blog_posts, to: :object
+
+ def self.model_name
+ @_model_name ||= User.model_name
+ end
  end
 
  let(:level0_record) do