Add unit test for PS env var

spec/foreman/cli_spec.rb

@@ -44,6 +44,13 @@ describe "Foreman::CLI", :fakefs do
           output.should =~ /test.1 \| testing/
         end
       end
+
+      it "sets PS variable with the process name" do
+        without_fakefs do
+          output = foreman("start -f #{resource_path("Procfile")}")
+          output.should =~ /ps.1   \| PS env var is ps.1/
+        end
+      end
     end
   end
 

spec/resources/Procfile

@@ -2,3 +2,4 @@ echo: bin/echo echoing
 env:  bin/env  FOO
 test: bin/test
 utf8: bin/utf8
+ps:   bin/echo PS env var is $PS