Failing test cases for when 0 and 1 are passed to non-boolean scopes

spec/ransack/adapters/active_record/base_spec.rb

@@ -20,8 +20,9 @@ module ActiveRecord
 
           context 'with scopes' do
             before do
-              Person.stub :ransackable_scopes => [:active, :over_age, :of_age]
-            end
+              Person.stub :ransackable_scopes =>
+                [:active, :over_age, :of_age, :article_count_equals]
+             end
 
             it "applies true scopes" do
               s = Person.ransack('active' => true)
@@ -68,6 +69,23 @@ module ActiveRecord
               s.result.to_sql.should include "age > 18"
               s.result.to_sql.should include "active = 1"
             end
+
+            context "applying joins/group/having scope" do
+              it "applies scope correctly when input is 0" do
+                search = Person.ransack('article_count_equals' => [0])
+                search.result.to_sql.should include "HAVING count(articles.id) = 0"
+              end
+
+              it "applies scope correctly when input is 1" do
+                search = Person.ransack('article_count_equals' => [1])
+                search.result.to_sql.should include "HAVING count(articles.id) = 1"
+              end
+
+              it "applies scope correctly when input is 1337" do
+                search = Person.ransack('article_count_equals' => [1337])
+                search.result.to_sql.should include "HAVING count(articles.id) = 1337"
+              end
+            end
           end
 
           it 'does not raise exception for string :params argument' do

spec/support/schema.rb

@@ -42,6 +42,9 @@ class Person < ActiveRecord::Base
   scope :of_age,      lambda { |of_age|
     of_age ? where("age >= ?", 18) : where("age < ?", 18)
   }
+  scope :article_count_equals, lambda { |n|
+    joins(:articles).group("people.id").having("count(articles.id) = ?", n)
+  }
 
   ransacker :reversed_name, :formatter => proc { |v| v.reverse } do |parent|
     parent.table[:name]