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Use Capybaras save_page when feature tests go wrong

spec/support/save_feature_failures.rb

@@ -0,0 +1,18 @@
+# Automatically save and open the page
+# whenever an expectation is not met in a features spec
+RSpec.configure do |config|
+  config.after(:each, type: :feature) do
+    ename = RSpec.current_example.full_description
+    ename = ename.gsub " ", "_"
+    ename.downcase!
+    ename = ename + ".html"
+    if RSpec.current_example.exception.present?
+      save_page(ename)
+    else
+      capfile = File.expand_path(ename, Capybara.save_and_open_page_path)
+      if File.exist?(capfile)
+        File.unlink(capfile)
+      end
+    end
+  end
+end