isolate builder relative feature

features/builder.feature

@@ -18,6 +18,6 @@ Feature: Builder
     And cleanup built app at "test-app"
     
   Scenario: Force relative assets
-    Given a built test app with flags "--relative"
-    Then "stylesheets/relative_assets.css" should exist at "test-app" and include "../"
-    And cleanup built app at "test-app"
+    Given a built app at "relative-app" with flags "--relative"
+    Then "stylesheets/relative_assets.css" should exist at "relative-app" and include "../"
+    And cleanup built app at "relative-app"

features/step_definitions/builder_steps.rb

@@ -13,9 +13,10 @@ Then /^cleanup built app at "([^"]*)"$/ do |path|
   FileUtils.rm_rf(target)
 end
 
-Given /^a built test app with flags "([^"]*)"$/ do |flags|
-  target = File.join(File.dirname(File.dirname(File.dirname(__FILE__))), "fixtures", "test-app")
-  build_cmd = File.expand_path(File.join(File.dirname(File.dirname(File.dirname(__FILE__))), "bin", "middleman build"))
+Given /^a built app at "([^"]*)" with flags "([^"]*)"$/ do |path, flags|
+  root = File.dirname(File.dirname(File.dirname(__FILE__)))
+  target = File.join(root, "fixtures", path)
+  build_cmd = File.expand_path(File.join(root, "bin", "middleman build"))
   `cd #{target} && #{build_cmd} #{flags}`
 end
 

fixtures/relative-app/source/stylesheets/relative_assets.css.sass

@@ -0,0 +1,3 @@
+@import "compass"
+h1
+  background: image-url("blank.gif")