Write a test for checking the presence of table names in the cache

.gitignore

@@ -4,4 +4,5 @@ spec/support/fixtures/*database*
 *.DS_Store
 debug.log
 pkg
-.bundle
\ No newline at end of file
+.bundle
+*.swp

test/test_table.rb

@@ -156,7 +156,7 @@ module Arel
     end
 
     it "should have a name" do
-      @relation.name.must_equal :users
+      @relation.name.must_equal 'users'
     end
 
     it "should have an engine" do
@@ -179,4 +179,15 @@ module Arel
       end
     end
   end
+
+  describe Table do
+    describe 'when checking existence of a table' do
+      it 'should be precent in the table cache despite the class of its name' do
+        [ 'users', :users ].each do |name|
+          relation = Table.new name
+          relation.send(:tables).key?(relation.name).must_equal true
+        end
+      end
+    end
+  end
 end