features: write EXIT STATUS to output so it all prints when we get an exit status we aren't expecting

features/step_definitions.rb

@@ -228,8 +228,13 @@ end
 #
 
 Then %r{^I should see "(.*)" in the build output$} do |text|
-  regexp = Regexp.new(text)
-  expect(jekyll_run_output).to match regexp
+  expect(jekyll_run_output).to match Regexp.new(text)
+end
+
+#
+
+Then %r{^I should get a zero exit(?:\-| )status$} do
+  step %(I should see "EXIT STATUS: 0" in the build output)
 end
 
 #

features/support/helpers.rb

@@ -100,8 +100,13 @@ def run_in_shell(*args)
   end
 
   File.write(Paths.status_file, p.value.exitstatus)
-  File.write(Paths.output_file, out) if p.value.exitstatus == 0
-  File.write(Paths.output_file, err) if p.value.exitstatus != 0
+  File.open(Paths.output_file, "wb") do |f|
+    f.puts args.join(" ")
+    f.puts out
+    f.puts err
+    f.puts "EXIT STATUS: #{p.value.exitstatus}"
+  end
+
   p.value
 end