I have a Play! 2 for Scala application, and I am using Specs2 for tests. I can run all tests with the test command, or a particular specification with test-on
test
test-on
If you want to pass several arguments you can add several strings to one Test.Argument
Test.Argument
testOptions in Test += Tests.Argument("include", "unit")
There are examples of this in the specs2 User Guide here and in the Play documentation there.