update tests

spec/foreman/cli_spec.rb

@@ -62,7 +62,7 @@ describe "Foreman::CLI" do
   describe "scale" do
     describe "without an existing configuration" do
       it "displays an error" do
-        mock_error(subject, "No such app: testapp.") do
+        mock_error(subject, "No such process: alpha.") do
           subject.scale("testapp", "alpha", "2")
         end
       end

spec/foreman/configuration_spec.rb

@@ -1,2 +1,49 @@
 require "spec_helper"
 require "foreman/configuration"
+
+describe "Foreman::Configuration" do
+  subject { Foreman::Configuration.new("testapp") }
+
+  describe "initialize" do
+    describe "without an existing config" do
+      it "has no processes" do
+        subject.processes.length.should == 0
+      end
+    end
+
+    describe "with an existing config" do
+      it "has processes" do
+        write_foreman_config("testapp")
+        subject.processes["alpha"].should == 1
+        subject.processes["bravo"].should == 2
+      end
+    end
+  end
+
+  describe "scale" do
+    before(:each) { write_foreman_config("testapp") }
+
+    it "can scale up" do
+      mock(subject).system("start testapp-alpha NUM=2")
+      mock(subject).system("start testapp-alpha NUM=3")
+      subject.scale("alpha", 3)
+    end
+
+    it "can scale down" do
+      mock(subject).system("stop testapp-bravo NUM=2")
+      subject.scale("bravo", 1)
+    end
+  end
+  
+  describe "wite" do
+    it "can write a configuration file" do
+      subject.scale("charlie", 3)
+      subject.scale("delta", 4)
+      File.read("/etc/foreman/testapp.conf").should == <<-FOREMAN_CONFIG
+testapp_processes="charlie delta"
+testapp_charlie="3"
+testapp_delta="4"
+      FOREMAN_CONFIG
+    end
+  end
+end

spec/foreman/engine_spec.rb

@@ -1,2 +1,32 @@
 require "spec_helper"
 require "foreman/engine"
+
+describe "Foreman::Engine" do
+  subject { Foreman::Engine.new("Procfile") }
+
+  describe "initialize" do
+    describe "without an existing Procfile" do
+      it "raises an error" do
+        lambda { subject }.should raise_error
+      end
+    end
+    
+    describe "with a Procfile" do
+      it "reads the processes" do
+        write_procfile
+        subject.processes["alpha"].command.should == "./alpha"
+        subject.processes["bravo"].command.should == "./bravo"
+      end
+    end
+  end
+  
+  describe "start" do
+    it "forks the processes" do
+      write_procfile
+      mock(subject).fork(subject.processes["alpha"])
+      mock(subject).fork(subject.processes["bravo"])
+      mock(subject).run_loop
+      subject.start
+    end
+  end
+end