stub out config.files_to_run in examples that run specs but don't nee…

…d to

- See #397

lib/rspec/core/configuration.rb

@@ -298,11 +298,31 @@ def reporter
       end
 
       def files_or_directories_to_run=(*files)
+        files = files.flatten
+        if files.empty? && default_directory
+          files << default_directory
+        end
         self.files_to_run = get_files_to_run(files)
-        # if you comment out the next line, the "block not supplied" error goes away
-        self.files_to_run = get_files_to_run(default_directory) if files_to_run.empty?
       end
 
+      def get_files_to_run(*files)
+        files.flatten.collect do |file|
+          if File.directory?(file)
+            pattern.split(",").collect do |pattern|
+              Dir["#{file}/#{pattern.strip}"]
+            end
+          else
+            if file =~ /(\:(\d+))$/
+              self.line_number = $2
+              file.sub($1,'')
+            else
+              file
+            end
+          end
+        end.flatten
+      end
+
+
       # E.g. alias_example_to :crazy_slow, :speed => 'crazy_slow' defines
       # crazy_slow as an example variant that has the crazy_slow speed option
       def alias_example_to(new_name, *args)
@@ -350,6 +370,7 @@ def inclusion_filter=(filter)
       def inclusion_filter
         settings[:inclusion_filter] || {}
       end
+
       def filter_run_including(*args)
         force_overwrite = if args.last.is_a?(Hash) || args.last.is_a?(Symbol)
           false
@@ -466,23 +487,6 @@ def custom_formatter(formatter_ref)
         end
       end
 
-      def get_files_to_run(*files)
-        files.flatten.collect do |file|
-          if File.directory?(file)
-            pattern.split(",").collect do |pattern|
-              Dir["#{file}/#{pattern.strip}"]
-            end
-          else
-            if file =~ /(\:(\d+))$/
-              self.line_number = $2
-              file.sub($1,'')
-            else
-              file
-            end
-          end
-        end.flatten
-      end
-
       def string_const?(str)
         str.is_a?(String) && /\A[A-Z][a-zA-Z0-9_:]*\z/ =~ str
       end

spec/rspec/core/command_line_spec.rb

@@ -156,6 +156,7 @@ def config_options(argv=[])
 
       before do
         config.stub(:run_hook)
+        config.stub(:files_to_run) { [] }
       end
 
       it "doesn't override output_stream" do

spec/rspec/core/runner_spec.rb

@@ -25,6 +25,7 @@ module RSpec::Core
       let(:out) { StringIO.new }
 
       it "resets world and configuration" do
+        RSpec.configuration.stub(:files_to_run) { [] }
         RSpec.configuration.should_receive(:reset)
         RSpec.world.should_receive(:reset)
         RSpec::Core::Runner.run([], err, out)
@@ -58,6 +59,7 @@ def run_specs
           end
 
           it "outputs a message" do
+            RSpec.configuration.stub(:files_to_run) { [] }
             err.should_receive(:puts).with(
               "No DRb server is running. Running in local process instead ..."
             )