Add missing specs for Guard implementation base class

lib/guard/guard.rb

@@ -55,12 +55,14 @@ module Guard
       else
         content = File.read('Guardfile')
         guard   = File.read("#{ ::Guard.locate_guard(name) }/lib/guard/#{ name }/templates/Guardfile")
+
         File.open('Guardfile', 'wb') do |f|
           f.puts(content)
           f.puts("")
           f.puts(guard)
         end
-        ::Guard::UI.info "#{name} guard added to Guardfile, feel free to edit it"
+
+        ::Guard::UI.info "#{ name } guard added to Guardfile, feel free to edit it"
       end
     end
 

spec/guard/guard_spec.rb

@@ -0,0 +1,60 @@
+require 'spec_helper'
+
+describe Guard::Guard do
+
+  describe '#initialize' do
+
+    it 'assigns the defined watchers' do
+      watchers = [ Guard::Watcher.new('*') ]
+      guard = Guard::Guard.new(watchers)
+      guard.watchers.should eql watchers
+    end
+
+    it 'assigns the defined options' do
+      options = { :a => 1, :b => 2 }
+      guard = Guard::Guard.new([], options)
+      guard.options.should eql options
+    end
+
+    context 'with a group in the options' do
+      it 'assigns the given group' do
+        options = { :group => :test }
+        guard = Guard::Guard.new([], options)
+        guard.group.should eql :test
+      end
+    end
+
+    context 'without a group in the options' do
+      it 'assigns a default group' do
+        options = { }
+        guard = Guard::Guard.new([], options)
+        guard.group.should eql :default
+      end
+    end
+  end
+
+  describe '#init' do
+    context 'when the Guard is already in the Guardfile' do
+      before { ::Guard::Dsl.stub(:guardfile_include?).and_return true }
+
+      it 'shows an info message' do
+        ::Guard::UI.should_receive(:info).with 'Guardfile already includes myguard guard'
+        Guard::Guard.init('myguard')
+      end
+    end
+
+    context 'when the Guard is not in the Guardfile' do
+      before { ::Guard::Dsl.stub(:guardfile_include?).and_return false }
+
+      it 'appends the template to the Guardfile' do
+        File.should_receive(:read).with('Guardfile').and_return 'Guardfile content'
+        ::Guard.should_receive(:locate_guard).with('myguard').and_return '/Users/me/projects/guard-myguard'
+        File.should_receive(:read).with('/Users/me/projects/guard-myguard/lib/guard/myguard/templates/Guardfile').and_return('Template content')
+        io = StringIO.new
+        File.should_receive(:open).with('Guardfile', 'wb').and_yield io
+        Guard::Guard.init('myguard')
+        io.string.should eql "Guardfile content\n\nTemplate content\n"
+      end
+    end
+  end
+end