Test with multiple redis versions

.gitignore

@@ -18,5 +18,6 @@ coverage
 rdoc
 pkg
 *.gem
+gemfiles/*.lock
 
 ## PROJECT::SPECIFIC

.travis.yml

@@ -12,5 +12,8 @@ rvm:
   - jruby-19mode
 env:
   - USE_REAL_REDIS=true
+gemfile:
+  - gemfiles/redis_3.gemfile
+  - gemfiles/redis_4.gemfile
 script:
   - bundle exec rspec

Appraisals

@@ -0,0 +1,7 @@
+appraise "redis-3" do
+  gem "redis", "~> 3.3.2"
+end
+
+appraise "redis-4" do
+  gem "redis", "4.0.0.rc1"
+end

Gemfile.lock

@@ -6,13 +6,18 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
+    appraisal (2.1.0)
+      bundler
+      rake
+      thor (>= 0.14.0)
     codeclimate-test-reporter (0.4.8)
       simplecov (>= 0.7.1, < 1.0.0)
     diff-lcs (1.2.5)
     docile (1.1.5)
     fakeredis (0.5.0)
       redis (~> 3.0)
     json (1.8.3)
+    rake (11.3.0)
     redis (3.2.2)
     rspec (3.4.0)
       rspec-core (~> 3.4.0)
@@ -32,11 +37,13 @@ GEM
       json (~> 1.8)
       simplecov-html (~> 0.10.0)
     simplecov-html (0.10.0)
+    thor (0.19.1)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
+  appraisal
   bundler (>= 1.0.0)
   codeclimate-test-reporter
   fakeredis

gemfiles/redis_3.gemfile

@@ -0,0 +1,13 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+if RUBY_VERSION >= '2.0'
+  gem "json"
+else
+  gem "json", "~> 1.8.3"
+end
+
+gem "redis", "~> 3.3.2"
+
+gemspec :path => "../"

gemfiles/redis_4.gemfile

@@ -0,0 +1,13 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+if RUBY_VERSION >= '2.0'
+  gem "json"
+else
+  gem "json", "~> 1.8.3"
+end
+
+gem "redis", "4.0.0.rc1"
+
+gemspec :path => "../"

rollout.gemspec

@@ -17,6 +17,7 @@ Gem::Specification.new do |s|
   s.require_paths = ["lib"]
 
   s.add_development_dependency "rspec"
+  s.add_development_dependency "appraisal"
   s.add_development_dependency "bundler", ">= 1.0.0"
   s.add_development_dependency "redis"
   s.add_development_dependency "fakeredis"