add integration spec for offline indexing

spec/integration/offline_indexing_spec.rb

@@ -0,0 +1,31 @@
+require File.expand_path("../../spec_helper", __FILE__)
+
+describe "Building an index offline" do
+  before do
+    $db.drop_table :awesome_things if $db.table_exists?(:awesome_things)
+
+    if $db.table_exists?(:index_awesome_things_on_name)
+      $db.drop_table :awesome_things_on_name
+    end
+
+    @klass = Class.new do
+      def self.name; "AwesomeThing"; end
+      def self.table_name; "awesome_things"; end
+
+      include Friendly::Document
+
+      attribute :name, String
+    end
+    @klass.create_tables!
+
+    @jameses = [@klass.create(:name => "James"), @klass.create(:name => "James")]
+
+    @klass.indexes :name
+    @klass.create_tables!
+    Friendly::Indexer.populate(@klass, :name)
+  end
+
+  it "builds the missing index rows for all the rows in the doc table" do
+    @klass.all(:name => "James").should == @jameses
+  end
+end