write some tests

Gemfile

@@ -3,5 +3,11 @@ source "http://rubygems.org"
 # Specify your gem's dependencies in guard-rails.gemspec
 gemspec
 gem 'rake', '0.8.7'
-gem 'growl'
 gem 'fakefs', :require => nil
+gem 'guard'
+gem 'guard-rspec'
+
+# TODO: make this more OS-independent...like the rest of the gem
+gem 'growl'
+gem 'rb-fsevent'
+

lib/guard/rails.rb

@@ -7,21 +7,23 @@ module Guard
   class Rails < ::Guard::Guard
     attr_reader :options, :runner
 
-    def initialize(watchers = [], options = {})
-      super
-      @options = {
+    DEFAULT_OPTIONS = {
         :port => 3000,
         :environment => 'development',
         :start_on_start => true,
         :force_run => false,
         :timeout => 20
-      }.merge(options)
+      }
+
+    def initialize(watchers = [], options = {})
+      super
+      @options = DEFAULT_OPTIONS.merge(options)
 
       @runner = RailsRunner.new(@options)
     end
 
     def start
-      UI.info "Guard::Rails restarting app on port #{options[:port]} using #{options[:environment]} environment."
+      UI.info "Guard::Rails will now restart your app on port #{options[:port]} using #{options[:environment]} environment."
       run_all if options[:start_on_start]
     end
 

spec/lib/guard/rails_spec.rb

@@ -14,6 +14,28 @@
     end
   end
 
+  describe '#start' do
+    let(:ui_expectation) { Guard::UI.expects(:info).with(regexp_matches(/#{Guard::Rails::DEFAULT_OPTIONS[:port]}/)) }
+
+    context 'start on start' do
+      it "should show the right message and run startup" do
+        guard.expects(:run_all).once
+        ui_expectation
+        guard.start
+      end
+    end
+
+    context 'no start on start' do
+      let(:options) { { :start_on_start => false } }
+
+      it "should show the right message and not run startup" do
+        guard.expects(:run_all).never
+        ui_expectation
+        guard.start
+      end
+    end
+  end
+
   describe '#run_all' do
     let(:pid) { '12345' }
 
@@ -52,5 +74,19 @@
       end
     end
   end
+
+  describe '#stop' do
+    it "should stop correctly" do
+      Guard::Notifier.expects(:notify).with('Until next time...', anything)
+      guard.stop
+    end
+  end
+
+  describe '#run_on_change' do
+    it "should run on change" do
+      guard.expects(:run_all).once
+      guard.run_on_change([])
+    end
+  end
 end