Add unit tests

.github/workflows/ruby.yml

@@ -32,3 +32,5 @@ jobs:
         bundler-cache: true # runs 'bundle install' and caches installed gems automatically
     - name: Run lint
       run: bundle exec rubocop
+    - name: Run lint
+      run: bundle exec rubocop

Gemfile.lock

@@ -17,11 +17,15 @@ GEM
     github-markup (4.0.0)
     i18n (1.8.10)
       concurrent-ruby (~> 1.0)
+    minitest (5.14.4)
+    minitest-skip (0.0.3)
+      minitest (~> 5.0)
     paint (2.2.1)
     parallel (1.20.1)
     parser (3.0.1.0)
       ast (~> 2.4.1)
     rainbow (3.0.0)
+    rake (13.0.3)
     redcarpet (3.5.1)
     regexp_parser (2.1.1)
     rexml (3.2.5)
@@ -49,6 +53,9 @@ DEPENDENCIES
   bundler (>= 2.1.0, < 2.3)
   commonmarker (~> 0.21)
   github-markup (~> 4.0)
+  minitest (~> 5.12)
+  minitest-skip (~> 0.0)
+  rake (~> 13.0)
   redcarpet (~> 3.5)
   rubocop (~> 1.10)
   tls-map!

Rakefile

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+require 'rake/testtask'
+
+Rake::TestTask.new(:test) do |t|
+  t.libs << 'test'
+  t.libs << 'lib'
+  t.test_files = FileList['test/**/test_*.rb']
+end
+
+desc 'Run tests'
+task default: :test

docs/CHANGELOG.md

@@ -1,3 +1,5 @@
+# Changelog
+
 ## [Unreleased]
 
 ## [1.2.0]
@@ -10,7 +12,11 @@ Additions:
 
 Documentation:
 
-- change yard doc format from rdoc to markdown
+- Change yard doc format from rdoc to markdown
+
+Quality:
+
+- Create unit tests
 
 ## [1.1.0]
 

docs/pages/publishing.md

@@ -16,6 +16,12 @@ On new release don't forget to rebuild the library documentation:
 $ bundle exec yard doc
 ```
 
+And to be sure all tests pass!
+
+```plaintext
+$ rake test
+```
+
 ## On BlackArch
 
 BA process
@@ -25,3 +31,9 @@ On new release don't forget to rebuild the library documentation:
 ```plaintext
 $ bundle exec yard doc
 ```
+
+And to be sure all tests pass!
+
+```plaintext
+$ rake test
+```