Rakefile.rb in rake-delphi-0.0.4 vs Rakefile.rb in rake-delphi-0.0.5

@@ -3,10 +3,16 @@
 require 'bundler/gem_tasks'
 require 'rake/testtask'
 
 task :default => :test
 
+task :"test:prerequisites" do
+    raise 'Please define DELPHI_VERSION environment variable' \
+		+ ' to run tests with appropriate Delphi compiler' unless ENV['DELPHI_VERSION']
+end
+
 Rake::TestTask.new('test') do |t|
     t.ruby_opts << '-d' if Rake.application.options.trace
     t.libs << 'test'
     t.verbose = true
+    Rake::application[t.name].enhance([:"test:prerequisites"])
 end