Use expanded path to begin with so we don’t have to expand it later.

Author: myronmarston

lib/rspec/core/configuration.rb

@@ -1346,7 +1346,7 @@ def load_spec_files
         # isn't loaded by us here so we only know about it because
         # of an example group being registered in it.
         RSpec.world.registered_example_group_files.each do |f|
-          loaded_spec_files << File.expand_path(f)
+          loaded_spec_files << f # the registered files are already expended absolute paths
         end
 
         files_to_run.uniq.each do |f|

lib/rspec/core/metadata.rb

@@ -147,12 +147,13 @@ def populate_location_attributes
                                    end
 
           relative_file_path            = Metadata.relative_path(file_path)
+          absolute_file_path            = File.expand_path(relative_file_path)
           metadata[:file_path]          = relative_file_path
           metadata[:line_number]        = line_number.to_i
           metadata[:location]           = "#{relative_file_path}:#{line_number}"
-          metadata[:absolute_file_path] = File.expand_path(relative_file_path)
+          metadata[:absolute_file_path] = absolute_file_path
           metadata[:rerun_file_path]  ||= relative_file_path
-          metadata[:scoped_id]          = build_scoped_id_for(relative_file_path)
+          metadata[:scoped_id]          = build_scoped_id_for(absolute_file_path)
         end
 
         def file_path_and_line_number_from(backtrace)

lib/rspec/core/world.rb

@@ -50,7 +50,7 @@ def registered_example_group_files
       # Register an example group.
       def register(example_group)
         example_groups << example_group
-        @example_group_counts_by_spec_file[example_group.metadata[:file_path]] += 1
+        @example_group_counts_by_spec_file[example_group.metadata[:absolute_file_path]] += 1
         example_group
       end