Make Sitemap metadata queryable with arel-style API

middleman-core/features/step_definitions/queryable_steps.rb

@@ -0,0 +1,123 @@
+Then /^should initialize with an attribute and an operator$/ do
+  selector = ::Middleman::Sitemap::Queryable::Selector.new :attribute => :author, :operator => 'equal'
+  :author.should == selector.attribute
+  'equal'.should == selector.operator
+end
+
+Then /^should raise an exception if the operator is not supported$/ do
+  expect {
+    selector = ::Middleman::Sitemap::Queryable::Selector.new :attribute => :author, :operator => 'zomg'
+  }.to raise_error(::Middleman::Sitemap::Queryable::OperatorNotSupportedError)
+end
+
+Then /^should limit the documents to the number specified$/ do
+  @server_inst.sitemap.order_by(:id).limit(2).all.map { |r| r.raw_data[:id] }.sort.should == [1,2].sort
+end
+
+Then /^should offset the documents by the number specified$/ do
+  @server_inst.sitemap.order_by(:id).offset(2).all.map { |r| r.raw_data[:id] }.sort.should == [3,4,5].sort
+end
+
+Then /^should support offset and limit at the same time$/ do
+  @server_inst.sitemap.order_by(:id).offset(1).limit(2).all.map { |r| r.raw_data[:id] }.sort.should == [2,3].sort
+end
+
+Then /^should not freak out about an offset higher than the document count$/ do
+  @server_inst.sitemap.order_by(:id).offset(5).all.should == []
+end
+
+Then /^should return the right documents$/ do
+  documents = @server_inst.sitemap.resources.select { |r| !r.raw_data.empty? }
+  document_1 = documents[0]
+  document_2 = documents[1]
+
+  found_document = @server_inst.sitemap.where(:title => document_1.raw_data[:title]).first
+  document_1.should == found_document
+  
+  found_document = @server_inst.sitemap.where(:title => document_2.raw_data[:title]).first
+  document_2.should == found_document
+end
+
+Then /^should be chainable$/ do
+  documents = @server_inst.sitemap.resources.select { |r| !r.raw_data.empty? }
+  document_1 = documents[0]
+
+  document_proxy = @server_inst.sitemap.where(:title => document_1.raw_data[:title])
+  document_proxy.where(:id => document_1.raw_data[:id])
+  document_1.should == document_proxy.first
+end
+
+Then /^should not be confused by attributes not present in all documents$/ do
+  result = @server_inst.sitemap.where(:seldom_attribute => 'is seldom').all
+  result.map { |r| r.raw_data[:id] }.should == [4]
+end
+
+Then /^with a gt operator should return the right documents$/ do
+  selector = ::Middleman::Sitemap::Queryable::Selector.new :attribute => :id, :operator => 'gt'
+  found_documents = @server_inst.sitemap.where(selector => 2).all
+  found_documents.map { |r| r.raw_data[:id] }.sort.should == [5,3,4].sort
+end
+
+Then /^with a gte operator should return the right documents$/ do
+  selector = ::Middleman::Sitemap::Queryable::Selector.new :attribute => :id, :operator => 'gte'
+  found_documents = @server_inst.sitemap.where(selector => 2).all
+  found_documents.map { |r| r.raw_data[:id] }.sort.should == [2,5,3,4].sort
+end
+
+Then /^with an in operator should return the right documents$/ do
+  selector = ::Middleman::Sitemap::Queryable::Selector.new :attribute => :id, :operator => 'in'
+  found_documents = @server_inst.sitemap.where(selector => [2,3]).all
+  found_documents.map { |r| r.raw_data[:id] }.sort.should == [2,3].sort
+end
+
+Then /^with an lt operator should return the right documents$/ do
+  selector = ::Middleman::Sitemap::Queryable::Selector.new :attribute => :id, :operator => 'lt'
+  found_documents = @server_inst.sitemap.where(selector => 2).all
+  found_documents.map { |r| r.raw_data[:id] }.should == [1]
+end
+
+Then /^with an lte operator should return the right documents$/ do
+  selector = ::Middleman::Sitemap::Queryable::Selector.new :attribute => :id, :operator => 'lte'
+  found_documents = @server_inst.sitemap.where(selector => 2).all
+  found_documents.map { |r| r.raw_data[:id] }.sort.should == [1,2].sort
+end
+
+Then /^with an include operator include should return the right documents$/ do
+  selector = ::Middleman::Sitemap::Queryable::Selector.new :attribute => :tags, :operator => 'include'
+  found_documents = @server_inst.sitemap.where(selector => 'ruby').all
+  found_documents.map { |r| r.raw_data[:id] }.sort.should == [1,2].sort
+end
+
+Then /^with mixed operators should return the right documents$/ do
+  in_selector = ::Middleman::Sitemap::Queryable::Selector.new :attribute => :id, :operator => 'in'
+  gt_selector = ::Middleman::Sitemap::Queryable::Selector.new :attribute => :id, :operator => 'gt'
+  documents_proxy = @server_inst.sitemap.where(in_selector => [2,3])
+  found_documents = documents_proxy.where(gt_selector => 2).all
+  found_documents.map { |r| r.raw_data[:id] }.should == [3]
+end
+
+Then /^using multiple constrains in one where should return the right documents$/ do
+  selector = ::Middleman::Sitemap::Queryable::Selector.new :attribute => :id, :operator => 'lte'
+  found_documents = @server_inst.sitemap.where(selector => 2, :status => :published).all
+  found_documents.map { |r| r.raw_data[:id] }.sort.should == [1,2].sort
+end
+
+Then /^should support ordering by attribute ascending$/ do
+  found_documents = @server_inst.sitemap.order_by(:title => :asc).all
+  found_documents.map { |r| r.raw_data[:id] }.should == [2,3,1,5,4]
+end
+
+Then /^should support ordering by attribute descending$/ do
+  found_documents = @server_inst.sitemap.order_by(:title => :desc).all
+  found_documents.map { |r| r.raw_data[:id] }.should == [4,5,1,3,2]
+end
+
+Then /^should order by attribute ascending by default$/ do
+  found_documents = @server_inst.sitemap.order_by(:title).all
+  found_documents.map { |r| r.raw_data[:id] }.should == [2,3,1,5,4]
+end
+
+Then /^should exclude documents that do not own the attribute$/ do
+  found_documents = @server_inst.sitemap.order_by(:status).all
+  found_documents.map { |r| r.raw_data[:id] }.to_set.should == [1,2].to_set
+end