From ae65509258b81b160d0f75a96c496318b411d98e Mon Sep 17 00:00:00 2001
From: Markus Schirp <mbj@schirp-dso.com>
Date: Sun, 21 Dec 2014 21:05:16 +0000
Subject: [PATCH] Prevent ignore of metadata duplicates in rspec integration

* Example groups with identical metadata still can represent different
  test cases.
* Using the relative example group index as an additional key resolves
  this.

[fixes #279]
---
 lib/mutant/integration/rspec.rb | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/lib/mutant/integration/rspec.rb b/lib/mutant/integration/rspec.rb
index 5077ac81..e8607b3d 100644
--- a/lib/mutant/integration/rspec.rb
+++ b/lib/mutant/integration/rspec.rb
@@ -81,28 +81,29 @@ module Mutant
       # @api private
       #
       def all_tests_index
-        all_examples.each_with_object({}) do |example, index|
-          index[parse_example(example)] = example
+        all_examples.each_with_index.each_with_object({}) do |(example, example_index), index|
+          index[parse_example(example, example_index)] = example
         end
       end
       memoize :all_tests_index
 
       # Parse example into test
       #
-      # @param [RSpec::Core::Example]
+      # @param [RSpec::Core::Example] example
+      # @param [Fixnum] index
       #
       # @return [Test]
       #
       # @api private
       #
-      def parse_example(example)
+      def parse_example(example, index)
         metadata = example.metadata
         location = metadata.fetch(:location)
         full_description = metadata.fetch(:full_description)
         expression = Expression.try_parse(full_description.split(EXPRESSION_DELIMITER, 2).first) || ALL
 
         Test.new(
-          id:         "rspec:#{example.object_id}/#{location}/#{full_description}",
+          id:         "rspec:#{index}:#{location}/#{full_description}",
           expression: expression
         )
       end