Tap::Summary added.

src/tap.cr

@@ -27,7 +27,20 @@ class Tap::Entry
 	end
 end
 
+class Tap::Summary
+	property tests_passed = [] of Tap::Entry
+	property tests_failed = [] of Tap::Entry
+	def initialize(@tests_passed, @tests_failed)
+	end
+end
+
 class Tap::Suite < Array(Tap::Entry)
+	def summary
+		tests_passed = self.select(&.status.ok?)
+		tests_failed = self.select(&.status.not_ok?)
+
+		Summary.new tests_passed, tests_failed
+	end
 end
 
 module Tap