CFINSPEC-94: Add new matchers belong_to_group/primary_group

Signed-off-by: Sonu Saha <sonu.saha@progress.com>

lib/inspec/resources/users.rb

@@ -285,6 +285,22 @@ module Inspec::Resources
       raise NotImplementedError
     end
 
+    def belongs_to_primary_group?(group_name)
+      groupname = group_name
+    end
+
+    def belongs_to_group?(group_name)
+      groupsname = groups
+      is_valid_group = false
+      groupsname.each do |g|
+        if g == group_name
+          is_valid_group = true
+          break
+        end
+      end
+      is_valid_group
+    end
+
     def to_s
       "User #{@username}"
     end

lib/matchers/matchers.rb

@@ -340,3 +340,16 @@ RSpec::Matchers.define :be_mounted do
     end
   end
 end
+
+# user resource belong_to matcher for serverspec compatibility
+RSpec::Matchers.define :belong_to_primary_group do |group|
+  match do |user|
+    user.belongs_to_primary_group?(group)
+  end
+end
+
+RSpec::Matchers.define :belong_to_group do |group|
+  match do |user|
+    user.belongs_to_group?(group)
+  end
+end