Adding ruby methods for interpreting index results

lib/fuzz_ball.rb

@@ -1,5 +1,6 @@
 require File.join(File.dirname(__FILE__), '../ext/smith_waterman/smith_waterman')
 require File.join(File.dirname(__FILE__), '../ext/duple_index/duple_index')
+require File.join(File.dirname(__FILE__), 'fuzz_ball/duple_index')
 
 module FuzzBall
   autoload :Searcher, 'fuzz_ball/searcher'

spec/lib/duple_index_spec.rb

@@ -17,11 +17,31 @@
     before(:each) do
       @index.add(0, [1, 2, 3]);
       @index.add(1, [0, 1, 2]);
-      @index.add(2, [3, 4, 3, 4, 3, 4])
     end
 
     it "should tell you where a given duple is found" do
       @index.query(1, 2).should == [[1, 1], [0, 0]]
     end
   end
+
+  describe "#match" do
+    before(:each) do
+      @index.add(0, [1, 2, 3, 4])
+      @index.add(1, [1, 2, 3])
+      @index.add(2, [1, 2, 4])
+      @index.add(3, [4, 5])
+    end
+
+    it "should not attempt to match with one or fewer duples in the candidate" do
+      @index.match([1]).should == {}
+    end
+
+    it "should return strings that match candidate by score" do
+      @index.match([1, 2, 3]).should == { 0 => 2, 1 => 2, 2 => 1 }
+    end
+
+    it "should return strings by score" do
+      @index.match([1, 2, 3], :by_score => true).should == {2 => [1, 0], 1 => [2]}
+    end
+  end
 end