Fix RDoc grammar and ensure hm:t tests can run in isolation. [#1644 state:resolved]

Signed-off-by: Pratik Naik <pratiknaik@gmail.com>

3 files changed, 5 insertions, 3 deletions

diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb
index 65a1319c7e..301b3a3b58 100755
--- a/activerecord/lib/active_record/associations.rb
+++ b/activerecord/lib/active_record/associations.rb
@@ -71,7 +71,7 @@ module ActiveRecord
 
   # See ActiveRecord::Associations::ClassMethods for documentation.
   module Associations # :nodoc:
-    # These classes will be loaded when associatoins are created.
+    # These classes will be loaded when associations are created.
     # So there is no need to eager load them.
     autoload :AssociationCollection, 'active_record/associations/association_collection'
     autoload :AssociationProxy, 'active_record/associations/association_proxy'
diff --git a/activerecord/lib/active_record/associations/has_many_through_association.rb b/activerecord/lib/active_record/associations/has_many_through_association.rb
index d5d188ac2a..23fe76de2e 100644
--- a/activerecord/lib/active_record/associations/has_many_through_association.rb
+++ b/activerecord/lib/active_record/associations/has_many_through_association.rb
@@ -23,8 +23,8 @@ module ActiveRecord
       end
 
       # Returns the size of the collection by executing a SELECT COUNT(*) query if the collection hasn't been loaded and
-      # calling collection.size if it has. If it's more likely than not that the collection does have a size larger than zero
-      # and you need to fetch that collection afterwards, it'll take one less SELECT query if you use length.
+      # calling collection.size if it has. If it's more likely than not that the collection does have a size larger than zero,
+      # and you need to fetch that collection afterwards, it'll take one fewer SELECT query if you use #length.
       def size
         return @owner.send(:read_attribute, cached_counter_attribute_name) if has_cached_counter?
         return @target.size if loaded?
diff --git a/activerecord/test/cases/associations/has_many_through_associations_test.rb b/activerecord/test/cases/associations/has_many_through_associations_test.rb
index 1e5d1a0202..ac00508b5f 100644
--- a/activerecord/test/cases/associations/has_many_through_associations_test.rb
+++ b/activerecord/test/cases/associations/has_many_through_associations_test.rb
@@ -1,6 +1,8 @@
 require "cases/helper"
 require 'models/post'
 require 'models/person'
+require 'models/reference'
+require 'models/job'
 require 'models/reader'
 require 'models/comment'
 require 'models/tag'