Test against all supported versions of Rails

Add Appraisal and require usage of it from now on when running tests.

.travis.yml

@@ -6,6 +6,15 @@ cache:
 env:
   # Source: https://github.com/rspec/rspec-rails/pull/2148
   - JAVA_OPTS="--add-opens java.base/sun.nio.ch=org.jruby.dist --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.security=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.security.cert=ALL-UNNAMED --add-opens=java.base/java.util.zip=ALL-UNNAMED --add-opens=java.base/java.lang.reflect=ALL-UNNAMED --add-opens=java.base/java.util.regex=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED  --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/javax.crypto=ALL-UNNAMED --add-opens=java.management/sun.management=ALL-UNNAMED --add-opens=java.base/java.io=org.jruby.dist"
+gemfile:
+  - gemfiles/rails_5_0.gemfile
+  - gemfiles/rails_5_1.gemfile
+  - gemfiles/rails_5_2.gemfile
+  - gemfiles/rails_6_0.gemfile
+matrix:
+  exclude:
+    - rvm: ruby-2.4.6
+      gemfile: gemfiles/rails_6_0.gemfile
 rvm:
   - ruby-2.6.3
   - ruby-2.5.5

Appraisals

@@ -0,0 +1,34 @@
+common_dependencies = proc do
+  gem "activerecord-jdbcsqlite3-adapter", platform: :jruby
+  gem "jdbc-sqlite3", platform: :jruby
+end
+
+appraise "rails_5_0" do
+  instance_eval(&common_dependencies)
+
+  gem "activerecord", "~> 5.0.0"
+  gem "sqlite3", "~> 1.3.6", platform: [:ruby, :mswin, :mingw]
+end
+
+appraise "rails_5_1" do
+  instance_eval(&common_dependencies)
+
+  gem "activerecord", "~> 5.1.0"
+  gem "sqlite3", "~> 1.3.6", platform: [:ruby, :mswin, :mingw]
+end
+
+appraise "rails_5_2" do
+  instance_eval(&common_dependencies)
+
+  gem "activerecord", "~> 5.2.0"
+  gem "sqlite3", "~> 1.3.6", platform: [:ruby, :mswin, :mingw]
+end
+
+if Gem::Requirement.new(">= 2.5.0").satisfied_by?(Gem::Version.new(RUBY_VERSION))
+  appraise "rails_6_0" do
+    instance_eval(&common_dependencies)
+
+    gem "activerecord", "~> 6.0"
+    gem "sqlite3", "~> 1.4.0", platform: [:ruby, :mswin, :mingw]
+  end
+end

Gemfile

@@ -4,9 +4,8 @@ source "https://rubygems.org"
 
 git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 
-gem "activerecord-jdbcsqlite3-adapter", platform: :jruby
+gem "appraisal"
 gem "childprocess"
-gem "jdbc-sqlite3", platform: :jruby
 gem "pry-byebug", platform: :mri
 gem "pry-nav", platform: :jruby
 gem "rake"
@@ -15,6 +14,5 @@ gem "rspec-expectations", github: "rspec/rspec-expectations"
 gem "rspec-mocks", github: "rspec/rspec-mocks"
 gem "rspec-support", github: "rspec/rspec-support"
 gem "rubocop"
-gem "sqlite3", platform: [:ruby, :mswin, :mingw]
 
 gemspec

README.md

@@ -174,7 +174,8 @@ Finally, submit your PR and I'll take a look at it when I get a chance.
 
 ## Compatibility
 
-`super_diff` is [tested][travis] to work with Ruby >= 2.4.x and RSpec 3.x.
+`super_diff` is [tested][travis] to work with Ruby >= 2.4.x, RSpec 3.x, and
+Rails >= 5.x.
 
 [travis]: http://travis-ci.org/mcmire/super_diff
 

gemfiles/.bundle/config

@@ -0,0 +1,2 @@
+---
+BUNDLE_RETRY: "1"

gemfiles/rails_5_0.gemfile

@@ -0,0 +1,20 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "childprocess"
+gem "pry-byebug", platform: :mri
+gem "pry-nav", platform: :jruby
+gem "rake"
+gem "rspec-core", git: "https://github.com/rspec/rspec-core"
+gem "rspec-expectations", git: "https://github.com/rspec/rspec-expectations"
+gem "rspec-mocks", git: "https://github.com/rspec/rspec-mocks"
+gem "rspec-support", git: "https://github.com/rspec/rspec-support"
+gem "rubocop"
+gem "activerecord-jdbcsqlite3-adapter", platform: :jruby
+gem "jdbc-sqlite3", platform: :jruby
+gem "activerecord", "~> 5.0.0"
+gem "sqlite3", "~> 1.3.6", platform: [:ruby, :mswin, :mingw]
+
+gemspec path: "../"

gemfiles/rails_5_0.gemfile.lock

@@ -0,0 +1,121 @@
+GIT
+  remote: https://github.com/rspec/rspec-core
+  revision: 8a287bd893889dba60e7bfce530727e7b009651e
+  specs:
+    rspec-core (3.9.0.pre)
+      rspec-support (= 3.9.0.pre)
+
+GIT
+  remote: https://github.com/rspec/rspec-expectations
+  revision: 4310cb957c922334791cade79f688c8143c74916
+  specs:
+    rspec-expectations (3.9.0.pre)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (= 3.9.0.pre)
+
+GIT
+  remote: https://github.com/rspec/rspec-mocks
+  revision: a62ec6fc309680a21ad3a88409500181381b13f8
+  specs:
+    rspec-mocks (3.9.0.pre)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (= 3.9.0.pre)
+
+GIT
+  remote: https://github.com/rspec/rspec-support
+  revision: c69a231d7369dd165ad7ce4742e1a2e21e3462b5
+  specs:
+    rspec-support (3.9.0.pre)
+
+PATH
+  remote: ..
+  specs:
+    super_diff (0.1.0)
+      activerecord (> 4.2, < 7.0)
+      attr_extras
+      diff-lcs
+      patience_diff
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    activemodel (5.0.7.2)
+      activesupport (= 5.0.7.2)
+    activerecord (5.0.7.2)
+      activemodel (= 5.0.7.2)
+      activesupport (= 5.0.7.2)
+      arel (~> 7.0)
+    activesupport (5.0.7.2)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 0.7, < 2)
+      minitest (~> 5.1)
+      tzinfo (~> 1.1)
+    appraisal (2.2.0)
+      bundler
+      rake
+      thor (>= 0.14.0)
+    arel (7.1.4)
+    ast (2.4.0)
+    attr_extras (6.2.1)
+    byebug (11.0.1)
+    childprocess (2.0.0)
+      rake (< 13.0)
+    coderay (1.1.2)
+    concurrent-ruby (1.1.5)
+    diff-lcs (1.3)
+    i18n (1.6.0)
+      concurrent-ruby (~> 1.0)
+    jaro_winkler (1.5.3)
+    method_source (0.9.2)
+    minitest (5.11.3)
+    parallel (1.17.0)
+    parser (2.6.4.1)
+      ast (~> 2.4.0)
+    patience_diff (1.1.0)
+      trollop (~> 1.16)
+    pry (0.12.2)
+      coderay (~> 1.1.0)
+      method_source (~> 0.9.0)
+    pry-byebug (3.7.0)
+      byebug (~> 11.0)
+      pry (~> 0.10)
+    rainbow (3.0.0)
+    rake (12.3.3)
+    rubocop (0.74.0)
+      jaro_winkler (~> 1.5.1)
+      parallel (~> 1.10)
+      parser (>= 2.6)
+      rainbow (>= 2.2.2, < 4.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 1.4.0, < 1.7)
+    ruby-progressbar (1.10.1)
+    sqlite3 (1.3.13)
+    thor (0.20.3)
+    thread_safe (0.3.6)
+    trollop (1.16.2)
+    tzinfo (1.2.5)
+      thread_safe (~> 0.1)
+    unicode-display_width (1.6.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  activerecord (~> 5.0.0)
+  activerecord-jdbcsqlite3-adapter
+  appraisal
+  childprocess
+  jdbc-sqlite3
+  pry-byebug
+  pry-nav
+  rake
+  rspec-core!
+  rspec-expectations!
+  rspec-mocks!
+  rspec-support!
+  rubocop
+  sqlite3 (~> 1.3.6)
+  super_diff!
+
+BUNDLED WITH
+   2.0.2

gemfiles/rails_5_1.gemfile

@@ -0,0 +1,20 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "childprocess"
+gem "pry-byebug", platform: :mri
+gem "pry-nav", platform: :jruby
+gem "rake"
+gem "rspec-core", git: "https://github.com/rspec/rspec-core"
+gem "rspec-expectations", git: "https://github.com/rspec/rspec-expectations"
+gem "rspec-mocks", git: "https://github.com/rspec/rspec-mocks"
+gem "rspec-support", git: "https://github.com/rspec/rspec-support"
+gem "rubocop"
+gem "activerecord-jdbcsqlite3-adapter", platform: :jruby
+gem "jdbc-sqlite3", platform: :jruby
+gem "activerecord", "~> 5.1.0"
+gem "sqlite3", "~> 1.3.6", platform: [:ruby, :mswin, :mingw]
+
+gemspec path: "../"

gemfiles/rails_5_1.gemfile.lock

@@ -0,0 +1,121 @@
+GIT
+  remote: https://github.com/rspec/rspec-core
+  revision: 8a287bd893889dba60e7bfce530727e7b009651e
+  specs:
+    rspec-core (3.9.0.pre)
+      rspec-support (= 3.9.0.pre)
+
+GIT
+  remote: https://github.com/rspec/rspec-expectations
+  revision: 4310cb957c922334791cade79f688c8143c74916
+  specs:
+    rspec-expectations (3.9.0.pre)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (= 3.9.0.pre)
+
+GIT
+  remote: https://github.com/rspec/rspec-mocks
+  revision: a62ec6fc309680a21ad3a88409500181381b13f8
+  specs:
+    rspec-mocks (3.9.0.pre)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (= 3.9.0.pre)
+
+GIT
+  remote: https://github.com/rspec/rspec-support
+  revision: c69a231d7369dd165ad7ce4742e1a2e21e3462b5
+  specs:
+    rspec-support (3.9.0.pre)
+
+PATH
+  remote: ..
+  specs:
+    super_diff (0.1.0)
+      activerecord (> 4.2, < 7.0)
+      attr_extras
+      diff-lcs
+      patience_diff
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    activemodel (5.1.7)
+      activesupport (= 5.1.7)
+    activerecord (5.1.7)
+      activemodel (= 5.1.7)
+      activesupport (= 5.1.7)
+      arel (~> 8.0)
+    activesupport (5.1.7)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 0.7, < 2)
+      minitest (~> 5.1)
+      tzinfo (~> 1.1)
+    appraisal (2.2.0)
+      bundler
+      rake
+      thor (>= 0.14.0)
+    arel (8.0.0)
+    ast (2.4.0)
+    attr_extras (6.2.1)
+    byebug (11.0.1)
+    childprocess (2.0.0)
+      rake (< 13.0)
+    coderay (1.1.2)
+    concurrent-ruby (1.1.5)
+    diff-lcs (1.3)
+    i18n (1.6.0)
+      concurrent-ruby (~> 1.0)
+    jaro_winkler (1.5.3)
+    method_source (0.9.2)
+    minitest (5.11.3)
+    parallel (1.17.0)
+    parser (2.6.4.1)
+      ast (~> 2.4.0)
+    patience_diff (1.1.0)
+      trollop (~> 1.16)
+    pry (0.12.2)
+      coderay (~> 1.1.0)
+      method_source (~> 0.9.0)
+    pry-byebug (3.7.0)
+      byebug (~> 11.0)
+      pry (~> 0.10)
+    rainbow (3.0.0)
+    rake (12.3.3)
+    rubocop (0.74.0)
+      jaro_winkler (~> 1.5.1)
+      parallel (~> 1.10)
+      parser (>= 2.6)
+      rainbow (>= 2.2.2, < 4.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 1.4.0, < 1.7)
+    ruby-progressbar (1.10.1)
+    sqlite3 (1.3.13)
+    thor (0.20.3)
+    thread_safe (0.3.6)
+    trollop (1.16.2)
+    tzinfo (1.2.5)
+      thread_safe (~> 0.1)
+    unicode-display_width (1.6.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  activerecord (~> 5.1.0)
+  activerecord-jdbcsqlite3-adapter
+  appraisal
+  childprocess
+  jdbc-sqlite3
+  pry-byebug
+  pry-nav
+  rake
+  rspec-core!
+  rspec-expectations!
+  rspec-mocks!
+  rspec-support!
+  rubocop
+  sqlite3 (~> 1.3.6)
+  super_diff!
+
+BUNDLED WITH
+   2.0.2

gemfiles/rails_5_2.gemfile

@@ -0,0 +1,20 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "childprocess"
+gem "pry-byebug", platform: :mri
+gem "pry-nav", platform: :jruby
+gem "rake"
+gem "rspec-core", git: "https://github.com/rspec/rspec-core"
+gem "rspec-expectations", git: "https://github.com/rspec/rspec-expectations"
+gem "rspec-mocks", git: "https://github.com/rspec/rspec-mocks"
+gem "rspec-support", git: "https://github.com/rspec/rspec-support"
+gem "rubocop"
+gem "activerecord-jdbcsqlite3-adapter", platform: :jruby
+gem "jdbc-sqlite3", platform: :jruby
+gem "activerecord", "~> 5.2.0"
+gem "sqlite3", "~> 1.3.6", platform: [:ruby, :mswin, :mingw]
+
+gemspec path: "../"