display error when process doesnt exist and is run by name

csquared · Nov 8, 2011 · f6ef5a5 · f6ef5a5
1 parent f3c1e76
commit f6ef5a5
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diff --git a/lib/foreman/engine.rb b/lib/foreman/engine.rb
@@ -41,6 +41,7 @@ def start
   end
 
   def execute(name)
+    error "no such process: #{name}" unless procfile[name]
     fork procfile[name]
 
     trap("TERM") { puts "SIGTERM received"; terminate_gracefully }

diff --git a/spec/foreman/engine_spec.rb b/spec/foreman/engine_spec.rb
@@ -48,6 +48,12 @@
       mock(subject).watch_for_termination
       subject.execute("alpha")
     end
+
+    it "shows an error running a process that doesnt exist" do
+      write_procfile
+      mock(subject).puts("ERROR: no such process: foo")
+      lambda { subject.execute("foo") }.should raise_error(SystemExit)
+    end
   end
 
   describe "environment" do