
Rake::TestTask.new("test:integration:flows") do |t|
  t.libs << "test"
  t.test_files = Dir["test/integration/flows/**/*_test.rb"]
end

Rake::TestTask.new("test:unit:calculators") do |t|
  t.libs << "test"
  t.test_files = Dir["test/unit/calculators/**/*_test.rb"]
end


Rake::TestTask.new("test:integration:flows") do |t|
  t.libs << "test"
  t.test_files = Dir["test/integration/flows/**/*_test.rb"]
end

--- 
+++ 
@@ -3,3 +3,8 @@
   t.libs << "test"
   t.test_files = Dir["test/integration/flows/**/*_test.rb"]
 end
+
+Rake::TestTask.new("test:unit:calculators") do |t|
+  t.libs << "test"
+  t.test_files = Dir["test/unit/calculators/**/*_test.rb"]
+end
Add rake test for calculator unit tests
