gathering rubygems information

lib/busted/gem.rb

@@ -44,6 +44,16 @@ def ruby_info_file
       target
     end
 
+    def gem_info_file
+      template_file = File.join(BASEDIR, 'templates', 'gem_info.erb')
+      template = ERB.new(File.read(template_file))
+      target = File.join(Dir::tmpdir, 'gem_info.txt')
+      File.open(target, 'wb') { |f|
+        f.write template.result(binding)
+      }
+      target
+    end
+
     private
     def copy_gem
       dirname = File.join(Dir::tmpdir, File.basename(@gemspec.full_gem_path))

templates/gem_info.erb

@@ -0,0 +1,20 @@
+# RubyGems Environment #
+
+  - RUBYGEMS VERSION: <%= ::Gem::RubyGemsVersion %>
+  - RUBY VERSION: <%= RUBY_VERSION %> (<%= RUBY_RELEASE_DATE %> patchlevel <%= defined?(RUBY_PATCHLEVEL) ? RUBY_PATCHLEVEL : 'none' %>) [<%= RUBY_PLATFORM %>]
+  - INSTALLATION DIRECTORY: <%= ::Gem.dir %>
+  - RUBYGEMS PREFIX: <%= ::Gem.prefix %>
+  - RUBY EXECUTABLE: <%= ::Gem.ruby %>
+  - EXECUTABLE DIRECTORY: <%= ::Gem.bindir %>
+  - RUBYGEMS PLATFORMS:
+  <% ::Gem.platforms.each do |platform| %>  - <%= platform %>
+  <% end %>
+  - GEM PATHS:
+  <% ::Gem.path.each do |path| %>  - <%= path %>
+  <% end %>
+  - GEM CONFIGURATION:
+  <% ::Gem.configuration.each do |name, value| %>  - <%= name.inspect %> => <%= value.inspect %>
+  <% end %>
+  - REMOTE SOURCES:
+  <% ::Gem.sources.each do |s| %>  - <%= s %>
+  <% end %>

templates/ruby_info.erb

@@ -1,3 +1,3 @@
-# Ruby Information
+# Ruby Information #
 <% Config::CONFIG.sort_by { |x,y| x }.each do |k,v| %><%= k %>: <%= v %>
 <% end %>

test/busted/test_gem.rb

@@ -30,6 +30,40 @@ def test_ruby_info
       assert_match Dir::tmpdir, filename
       assert File.exists?(filename)
       assert_match /txt$/, filename
+      contents = File.read(filename)
+      Config::CONFIG.each { |k,v|
+        assert_match k, contents
+        assert_match v, contents
+      }
+    end
+
+    def test_gem_information
+      broken = Busted::Gem.new(@spec)
+      filename = broken.gem_info_file
+      assert_match Dir::tmpdir, filename
+      assert File.exists?(filename)
+      assert_match /txt$/, filename
+      contents = File.read(filename)
+      assert_match ::Gem::RubyGemsVersion, contents
+      assert_match RUBY_VERSION, contents
+      assert_match RUBY_RELEASE_DATE, contents
+      assert_match RUBY_PLATFORM, contents
+      assert_match ::Gem.dir, contents
+      assert_match ::Gem.ruby, contents
+      assert_match ::Gem.bindir, contents
+      ::Gem.platforms.each { |platform|
+        assert_match platform, contents
+      }
+      ::Gem.path.each { |path|
+        assert_match path, contents
+      }
+      ::Gem.configuration.each do |name,value|
+        assert_match name.inspect, contents
+        assert_match value.inspect, contents
+      end
+      ::Gem.sources.each do |s|
+        assert_match s, contents
+      end
     end
   end
 end