Reimplemented Manager as singleton object

lib/manager.rb

@@ -1,25 +1,30 @@
 module RubyQA
   class Manager
-    attr_reader :resources
+    attr_reader :resources, :hosts
     @@tests = Array.new
+    @@hosts = Array.new
 
-    def initialize
-      @hosts = Array.new
+    def self.tests
+      @@tests
     end
 
-    def add_host(host)
-      @hosts << host
+    def self.hosts
+      @@hosts
+    end
+
+    def self.add_host(host)
+      @@hosts << host
       register_resources(host)
       update_resources(host)
     end
 
-    def register_resources (host)
+    def self.register_resources (host)
       Resource.all_resources.each do |resource|
         host.add_resource(resource)
       end
     end
 
-    def update_resources (host)
+    def self.update_resources (host)
       host.update_resources
     end
 
@@ -27,8 +32,8 @@ module RubyQA
       @@tests << Test.new(name, **options, &test_proc)
     end
 
-    def run_tests
-      @hosts.each do |host|
+    def self.run_tests
+      @@hosts.each do |host|
         tests = @@tests.select{|test| test.valid_host(host)}
         tests.each do |test|
           test.run(host)
@@ -36,8 +41,12 @@ module RubyQA
       end
     end
 
-    def report
+    def self.report (template = nil)
+      if template
+        puts template.result(binding)
+      else
         puts @@tests.map(&:report).join("\n")
       end
     end
+  end
 end