refactor: improve test capability and coverage

.github/workflows/main.yml

@@ -39,6 +39,8 @@ jobs:
           sudo apt-get install -yqq liblcms2-utils libglib2.0-dev libgtk2.0-dev libgdk-pixbuf2.0-dev
       - name: checkout repo
         uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
+      - name: unlock the gem versions
+        run: rm Gemfile.lock
       - name: set up ruby environment
         uses: ruby/setup-ruby@v1
         with:

.gitignore

@@ -4,7 +4,6 @@
 .DS_Store
 .config
 .yardoc
-Gemfile*.lock
 InstalledFiles
 _yardoc
 coverage

.rubocop.yml

@@ -2,3 +2,6 @@ inherit_from: .rubocop_todo.yml
 
 AllCops:
   NewCops: enable
+
+Metrics/BlockLength:
+  CountAsOne: ['array', 'hash', 'heredoc', 'method_call']

CHANGELOG.md

@@ -7,11 +7,15 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## Unreleased
 ### Added
 - Better test coverage for straighten operation
+- Support for visual image comparison in specs
 
 ### Changed
 - Extracted image operations to separate files within a dedicated module
 - [BREAKING] Introduced raising Morandi's own errors instead of bubbling Pixbuf's
 
+### Fixed
+- Updated required ruby version in gemspec to reflect dropping Ruby 2.3 support
+
 ## [0.99.03] 19.09.2024
 ### Added
 - Copied pixbufutils and redeye gems into main gem

Dockerfile

@@ -1,4 +1,4 @@
-FROM ruby:2.7-slim
+FROM ruby:3.3-slim
 
 LABEL Name=morandirb Version=0.0.2
 
@@ -17,9 +17,11 @@ RUN apt-get update && apt-get install -yyq --no-install-recommends \
 RUN gem update --system 3.4.22
 
 WORKDIR /app
-COPY morandi.gemspec Gemfile ./
+COPY morandi.gemspec Gemfile Gemfile.lock ./
 COPY lib/morandi/version.rb lib/morandi/version.rb
 RUN bundle install
 COPY . /app
+# Compile the native extensions
+RUN bundle exec rake compile
 
 CMD ["bundle", "exec", "guard"]

Gemfile.lock

@@ -0,0 +1,152 @@
+PATH
+  remote: .
+  specs:
+    morandi (0.99.03)
+      atk (~> 4.0)
+      cairo (~> 1.0)
+      colorscore (~> 0.0)
+      gdk_pixbuf2 (~> 4.0)
+      pango (~> 4.0)
+      rake-compiler (~> 1.2)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    ast (2.4.2)
+    atk (4.2.4)
+      glib2 (= 4.2.4)
+    attr_extras (7.1.0)
+    cairo (1.17.13)
+      native-package-installer (>= 1.0.3)
+      pkg-config (>= 1.2.2)
+      red-colors
+    cairo-gobject (4.2.4)
+      cairo (>= 1.16.2)
+      glib2 (= 4.2.4)
+    coderay (1.1.3)
+    color (1.8)
+    colorscore (0.0.5)
+      color
+    diff-lcs (1.5.1)
+    docile (1.4.1)
+    ffi (1.17.0-x86_64-linux-gnu)
+    fiddle (1.1.3)
+    formatador (1.1.0)
+    gdk_pixbuf2 (4.2.4)
+      gio2 (= 4.2.4)
+    gio2 (4.2.4)
+      fiddle
+      gobject-introspection (= 4.2.4)
+    glib2 (4.2.4)
+      native-package-installer (>= 1.0.3)
+      pkg-config (>= 1.3.5)
+    gobject-introspection (4.2.4)
+      glib2 (= 4.2.4)
+    guard (2.18.1)
+      formatador (>= 0.2.4)
+      listen (>= 2.7, < 4.0)
+      lumberjack (>= 1.0.12, < 2.0)
+      nenv (~> 0.1)
+      notiffany (~> 0.0)
+      pry (>= 0.13.0)
+      shellany (~> 0.0)
+      thor (>= 0.18.1)
+    guard-compat (1.2.1)
+    guard-rspec (4.7.3)
+      guard (~> 2.1)
+      guard-compat (~> 1.1)
+      rspec (>= 2.99.0, < 4.0)
+    json (2.7.2)
+    language_server-protocol (3.17.0.3)
+    listen (3.9.0)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
+    lumberjack (1.2.10)
+    matrix (0.4.2)
+    method_source (1.1.0)
+    native-package-installer (1.1.9)
+    nenv (0.3.0)
+    notiffany (0.1.3)
+      nenv (~> 0.1)
+      shellany (~> 0.0)
+    optimist (3.1.0)
+    pango (4.2.4)
+      cairo-gobject (= 4.2.4)
+      gobject-introspection (= 4.2.4)
+    parallel (1.26.3)
+    parser (3.3.5.0)
+      ast (~> 2.4.1)
+      racc
+    patience_diff (1.2.0)
+      optimist (~> 3.0)
+    pkg-config (1.5.6)
+    pry (0.14.2)
+      coderay (~> 1.1)
+      method_source (~> 1.0)
+    racc (1.8.1)
+    rainbow (3.1.1)
+    rake (13.2.1)
+    rake-compiler (1.2.8)
+      rake
+    rb-fsevent (0.11.2)
+    rb-inotify (0.11.1)
+      ffi (~> 1.0)
+    red-colors (0.4.0)
+      json
+      matrix
+    regexp_parser (2.9.2)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.1)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.3)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.2)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.1)
+    rubocop (1.67.0)
+      json (~> 2.3)
+      language_server-protocol (>= 3.17.0)
+      parallel (~> 1.10)
+      parser (>= 3.3.0.2)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 2.4, < 3.0)
+      rubocop-ast (>= 1.32.2, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 3.0)
+    rubocop-ast (1.32.3)
+      parser (>= 3.3.1.0)
+    ruby-progressbar (1.13.0)
+    shellany (0.0.1)
+    simplecov (0.22.0)
+      docile (~> 1.1)
+      simplecov-html (~> 0.11)
+      simplecov_json_formatter (~> 0.1)
+    simplecov-html (0.13.1)
+    simplecov_json_formatter (0.1.4)
+    super_diff (0.9.0)
+      attr_extras (>= 6.2.4)
+      diff-lcs
+      patience_diff
+    thor (1.3.2)
+    unicode-display_width (2.6.0)
+
+PLATFORMS
+  x86_64-linux
+
+DEPENDENCIES
+  guard
+  guard-rspec
+  morandi!
+  rake
+  rspec
+  rubocop
+  simplecov
+  super_diff
+
+BUNDLED WITH
+   2.4.22

morandi.gemspec

@@ -14,7 +14,7 @@ Gem::Specification.new do |spec|
   spec.homepage      = 'https://github.com/livelink/morandi-rb'
   spec.license       = 'MIT'
 
-  spec.required_ruby_version = '>= 2.0'
+  spec.required_ruby_version = '>= 2.7'
   spec.files         = Dir['CHANGELOG.md', 'LICENSE.txt', 'README.md', 'ext/**/*', 'lib/**/*']
   spec.require_paths = ['lib']