Add tests for max_pages and max_pages_per

spec/config/config_spec.rb

@@ -73,4 +73,19 @@ describe Kaminari::Configuration do
       end
     end
   end
+
+  describe 'max_pages' do
+    context 'by default' do
+      its(:max_pages) { should == nil }
+    end
+    context 'configure via config block' do
+      before do
+        Kaminari.configure {|c| c.max_pages = 5}
+      end
+      its(:max_pages) { should == 5 }
+      after do
+        Kaminari.configure {|c| c.max_pages = nil}
+      end
+    end
+  end
 end

spec/models/active_record/max_pages_spec.rb

@@ -0,0 +1,23 @@
+require 'spec_helper'
+
+if defined? ActiveRecord
+
+  describe 'max pages' do
+    describe 'AR::Base' do
+      subject { ActiveRecord::Base }
+      it { should_not respond_to :max_pages_per }
+    end
+
+    subject { User.page 0 }
+
+    context 'by default' do
+      its(:max_pages) { should == nil }
+    end
+
+    context 'when explicitly set via max_pages_per' do
+      before { User.max_pages_per 3 }
+      its(:max_pages) { should == 3 }
+      after { User.max_pages_per nil }
+    end
+  end
+end

spec/models/active_record/scopes_spec.rb

@@ -98,6 +98,26 @@ if defined? ActiveRecord
             subject { model_class.page(5).per('aho') }
             its(:total_pages) { should == 4 }
           end
+
+          context 'with max_pages < total pages count from database' do
+            before { model_class.max_pages_per 3 }
+            subject { model_class.page }
+            its(:total_pages) { should == 3 }
+            after { model_class.max_pages_per nil }
+          end
+
+          context 'with max_pages > total pages count from database' do
+            before { model_class.max_pages_per 11 }
+            subject { model_class.page }
+            its(:total_pages) { should == 4 }
+            after { model_class.max_pages_per nil }
+          end
+
+          context 'with max_pages is nil' do
+            before { model_class.max_pages_per nil }
+            subject { model_class.page }
+            its(:total_pages) { should == 4 }
+          end
         end