Add integration tests (#60)

This PR adds integration tests to the project. It builds off the work
done in #54, but using a freshly
generated Rails app in
[494a54f](494a54f).

Notable changes:
* Deletes `dummyapp` that existed in project root in favor of
`spec/dummyapp`
* The source of truth for annotations from different database adapters
are checked in, and can be found in `spec/templates`
* Adds integration tests to CI

Credit to @Maimer for laying the foundation for supporting multiple
adapters and creating concise models and migrations for testing.

---------

Co-authored-by: Nicholas Lee <[email protected]>

Author: drwl

.github/workflows/ci.yml

@@ -29,8 +29,104 @@ jobs:
           ruby-version: ${{ matrix.ruby }}
           bundler-cache: true
 
-      - name: Run Tests
-        run: bundle exec rspec
+      - name: Run Unit tests
+        run: bundle exec rake spec:unit
 
       - name: Run Standard linter
         run: bundle exec standardrb
+
+  integration:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+#        adapter: [ 'mysql2', 'pg', 'sqlite3' ]
+        ruby: [ '2.7', '3.0', '3.1', '3.2' ]
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Setup Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+
+      - name: Start MySQL
+        run: sudo systemctl start mysql.service
+
+      - name: Start and setup Postgres
+        run: |
+          sudo systemctl start postgresql.service
+          sudo -u postgres psql -c "ALTER USER postgres PASSWORD 'root'"
+      #          https://github.com/actions/runner-images/issues/7678
+
+      - name: Install dummyapp dependencies (sqlite)
+        run: bundle install
+        working-directory: spec/dummyapp
+        env:
+          DATABASE_ADAPTER: sqlite3
+
+      - name: Run dummyapp migrations (sqlite)
+        run: bin/rails db:create && bin/rails db:migrate
+        working-directory: spec/dummyapp
+        env:
+          DATABASE_ADAPTER: sqlite3
+
+      - name: Run Integration tests (sqlite)
+        run: bundle exec rake spec:integration
+        env:
+          DATABASE_ADAPTER: sqlite3
+
+      - name: Clean dummyapp (sqlite)
+        run: |
+          rm -f Gemfile.lock
+          rm -f db/schema.rb
+        working-directory: spec/dummyapp
+
+      - name: Install dummyapp dependencies (mysql2)
+        run: bundle install
+        working-directory: spec/dummyapp
+        env:
+          DATABASE_ADAPTER: mysql2
+
+      - name: Run dummyapp migrations (mysql2)
+        run: bin/rails db:create && bin/rails db:migrate
+        working-directory: spec/dummyapp
+        env:
+          DATABASE_ADAPTER: mysql2
+
+      - name: Run Integration tests (mysql2)
+        run: bundle exec rake spec:integration
+        env:
+          DATABASE_ADAPTER: mysql2
+
+      - name: Clean dummyapp (mysql2)
+        run: |
+          rm -f Gemfile.lock
+          rm -f db/schema.rb
+        working-directory: spec/dummyapp
+
+      - name: Install dummyapp dependencies (pg)
+        run: bundle install
+        working-directory: spec/dummyapp
+        env:
+          DATABASE_ADAPTER: pg
+
+      - name: Run dummyapp migrations (pg)
+        run: bin/rails db:create && bin/rails db:migrate
+        working-directory: spec/dummyapp
+        env:
+          DATABASE_ADAPTER: pg
+
+      - name: Run Integration tests (pg)
+        run: bundle exec rake spec:integration
+        env:
+          DATABASE_ADAPTER: pg
+
+      - name: Clean dummyapp (pg)
+        run: |
+          rm -f Gemfile.lock
+          rm -f db/schema.rb
+        working-directory: spec/dummyapp

.gitignore

@@ -15,4 +15,9 @@
 /pkg/*
 /spec/debug.log
 .byebug_history
-.rspec_status
+.rspec_status
+/spec/dummyapp/Gemfile.lock
+/spec/dummyapp/log/
+/spec/dummyapp/db/schema.rb
+/spec/dummyapp/db/development.sqlite3
+/tmp/*

.standard.yml

@@ -3,3 +3,4 @@ format: progress
 ruby_version: 2.7
 ignore:
   - 'dummyapp/**/*'
+  - 'spec/dummyapp/**/*'

Gemfile

@@ -1,5 +1,6 @@
+# frozen_string_literal: true
+
 source "https://rubygems.org"
-gemspec
 
 gem "activerecord", require: false
 gem "rake"
@@ -18,3 +19,5 @@ group :development, :test do
     gem "pry-byebug", require: false
   end
 end
+
+gemspec

Rakefile

@@ -1,6 +1,18 @@
-require "bundler/gem_tasks"
+# frozen_string_literal: true
+
+require "bundler"
 require "rspec/core/rake_task"
 
-RSpec::Core::RakeTask.new(:spec)
+namespace :spec do
+  RSpec::Core::RakeTask.new(:unit) do |test|
+    test.pattern = "spec/lib/**/*_spec.rb"
+  end
+
+  RSpec::Core::RakeTask.new(:integration) do |test|
+    test.pattern = "spec/integration/**/*_spec.rb"
+  end
+end
+
+task spec: ["spec:unit", "spec:integration"]
 
 task default: :spec