Expand json version compatibility (#1)

.github/workflows/ci.yml

@@ -16,6 +16,6 @@ jobs:
           ruby-version: ${{ matrix.ruby_version }}
       - uses: actions/checkout@v2
       - name: Install dependencies
-        run: bundle install
+        run: bundle install && bundle exec appraisal install
       - name: Run tests
-        run: bundle exec rspec
+        run: bundle exec appraisal rspec

.gitignore

@@ -1,11 +1,15 @@
 /.bundle/
 /.yardoc
+/Gemfile.lock
 /_yardoc/
 /coverage/
 /doc/
 /pkg/
 /spec/reports/
 /tmp/
 
+# Appraisals generated Gemfiles
+/gemfiles/
+
 # rspec failure tracking
 .rspec_status

Appraisals

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+appraise 'json-1.8' do
+  gem 'json', '~> 1.8.0'
+end
+
+appraise 'json-2' do
+  gem 'json', '~> 2.0'
+end

serialized-hashie.gemspec

@@ -20,6 +20,8 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(/^exe\//) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
+  spec.add_development_dependency 'appraisal', '~> 2.3'
+
   spec.add_runtime_dependency 'hashie', '>= 4.0', '< 5.0'
-  spec.add_runtime_dependency 'json', '>= 2.0', '< 3.0'
+  spec.add_runtime_dependency 'json', '>= 1.8', '< 3.0'
 end