1 files changed, 35 insertions, 0 deletions
diff --git a/spec/active_relation/unit/relations/range_spec.rb b/spec/active_relation/unit/relations/range_spec.rb
new file mode 100644
index 0000000000..501a8d3641
--- /dev/null
+++ b/spec/active_relation/unit/relations/range_spec.rb
@@ -0,0 +1,35 @@
+require File.join(File.dirname(__FILE__), '..', '..', '..', 'spec_helper')
+
+module ActiveRelation
+  describe Range do
+    before do
+      @relation = Table.new(:users)
+      @range = 4..9
+    end
+
+    describe '#qualify' do
+      it "descends" do
+        Range.new(@relation, @range).qualify.should == Range.new(@relation, @range).descend(&:qualify)
+      end
+    end
+    
+    describe '#descend' do
+      it "distributes over the relation" do
+        Range.new(@relation, @range).descend(&:qualify).should == Range.new(@relation.descend(&:qualify), @range)
+      end
+    end
+    
+    describe '#to_sql' do
+      it "manufactures sql with limit and offset" do
+        range_size = @range.last - @range.first + 1
+        range_start = @range.first
+        Range.new(@relation, @range).to_s.should be_like("""
+          SELECT `users`.`id`, `users`.`name`
+          FROM `users`
+          LIMIT #{range_size}
+          OFFSET #{range_start}
+        """)
+      end
+    end
+  end
+end
+\ No newline at end of file