chore: add appraisals to allow testing with rack 2 and rack 3

.github/workflows/test.yml

@@ -30,15 +30,14 @@ jobs:
  matrix:
  ruby_version: ["3.2"]
  os: ["ubuntu-latest","windows-latest","macos-latest"]
- env:
- BUNDLE_GEMFILE: rack-2.gemfile
  steps:
  - uses: actions/checkout@v3
  - uses: ruby/setup-ruby@v1
  with:
  ruby-version: ${{ matrix.ruby_version }}
  bundler-cache: true
- - run: "bundle exec rake"
+ - run: "bundle exec appraisal install"
+ - run: "bundle exec appraisal rack-2 rake"
  test-with-active-support:
  runs-on: ${{ matrix.os }}
  env:
@@ -57,4 +56,5 @@ jobs:
  with:
  ruby-version: ${{ matrix.ruby_version }}
  bundler-cache: true
- - run: "bundle exec rake spec_with_active_support"
+ - run: "bundle exec appraisal install"
+ - run: "bundle exec appraisal activesupport rake spec_with_active_support"

Appraisals

@@ -0,0 +1,11 @@
+appraise "rack-2" do
+ gem "rack", "~> 2.0"
+
+ group :test do
+ remove_gem "rackup"
+ end
+end
+
+appraise "activesupport" do
+ gem "activesupport", "~> 5.1"
+end

Gemfile

@@ -11,6 +11,7 @@ gemspec
 # Diff:
 
 gem "rspec-mocks", "3.10.2"
+gem "appraisal", "~> 2.5"
 
 if ENV['X_PACT_DEVELOPMENT']
  gem "pact-support", path: '../pact-support'

spec/support/ssl_server.rb

@@ -32,7 +32,11 @@ def webrick_opts port
  require "webrick"
  require "webrick/https"
  require "rack"
- require "rackup/handler/webrick"
+ begin
+ require "rackup/handler/webrick" # rack 3
+ rescue LoadError
+ require "rack/handler/webrick" # rack 2
+ end
 
  opts = webrick_opts(4444)