more cli tests

lib/foreman.rb

@@ -2,5 +2,7 @@ module Foreman
 
   VERSION = "0.0.1"
 
+  class AppDoesNotExist < Exception; end
+
 end
 

lib/foreman/cli.rb

@@ -29,7 +29,11 @@ class Foreman::CLI < Thor
   desc "scale APP PROCESS AMOUNT", "Change the concurrency of a given process type"
 
   def scale(app, process, amount)
-    Foreman::Configuration.new(app).scale(process, amount)
+    config = Foreman::Configuration.new(app)
+    error "No such process: #{process}." unless config.processes[process]
+    config.scale(process, amount)
+  rescue Foreman::AppDoesNotExist
+    error "No such app: #{app}."
   end
 
 private ######################################################################

lib/foreman/configuration.rb

@@ -12,7 +12,7 @@ class Foreman::Configuration
   end
 
   def scale(process, amount)
-    old_amount = processes[process]
+    old_amount = processes[process].to_i
     processes[process] = amount.to_i
     amount = amount.to_i
 
@@ -43,6 +43,8 @@ private ######################################################################
     config["#{app}_processes"].split(" ").each do |process|
       processes[process] = config["#{app}_#{process}"].to_i
     end
+  rescue Errno::ENOENT
+    raise Foreman::AppDoesNotExist
   end
 
   def run(command)