spec/lib/railsthemes/email_installer_spec.rb in railsthemes-1.1 vs spec/lib/railsthemes/email_installer_spec.rb in railsthemes-1.1.1

@@ -1,8 +1,47 @@
 require 'spec_helper'
 require 'railsthemes'
 
 describe Railsthemes::EmailInstaller do
   before do
-    setup_logging
+    setup_logger
+    @installer = Railsthemes::EmailInstaller.new
+    @tempdir = stub_tempdir
+  end
+
+  describe '#install_mail_gems_if_necessary' do
+    it 'should install no new gems if premailer-rails3 gem already installed' do
+      File.open('Gemfile.lock', 'w') do |f|
+        f.write using_gems 'premailer-rails3', 'hpricot'
+      end
+      dont_allow(Railsthemes::Utils).add_gem_to_gemfile(anything)
+      dont_allow(Railsthemes::Safe).system_call('bundle')
+      @installer.install_mail_gems_if_necessary
+    end
+
+    it 'when nokogiri already installed, should install the pr3 gem' do
+      File.open('Gemfile.lock', 'w') do |f|
+        f.write using_gems 'nokogiri'
+      end
+      mock(Railsthemes::Utils).add_gem_to_gemfile('premailer-rails3')
+      mock(Railsthemes::Safe).system_call('bundle')
+      @installer.install_mail_gems_if_necessary
+    end
+
+    it 'when hpricot already installed, should install the pr3 gem only' do
+      File.open('Gemfile.lock', 'w') do |f|
+        f.write using_gems 'hpricot'
+      end
+      mock(Railsthemes::Utils).add_gem_to_gemfile('premailer-rails3')
+      mock(Railsthemes::Safe).system_call('bundle')
+      @installer.install_mail_gems_if_necessary
+    end
+
+    it 'when no xml gem or pr3 installed, should install the pr3 gem and hpricot' do
+      FileUtils.touch('Gemfile.lock')
+      mock(Railsthemes::Utils).add_gem_to_gemfile('hpricot')
+      mock(Railsthemes::Utils).add_gem_to_gemfile('premailer-rails3')
+      mock(Railsthemes::Safe).system_call('bundle')
+      @installer.install_mail_gems_if_necessary
+    end
   end
 end