1 files changed, 62 insertions, 0 deletions
diff --git a/qa/qa/support/page_error_checker.rb b/qa/qa/support/page_error_checker.rb
new file mode 100644
index 00000000000..5d16245b4cd
--- /dev/null
+++ b/qa/qa/support/page_error_checker.rb
@@ -0,0 +1,62 @@
+# frozen_string_literal: true
+
+module QA
+  module Support
+    class PageErrorChecker
+      class << self
+        def report!(page, error_code)
+          report = if QA::Runtime::Env.browser == :chrome
+                     return_chrome_errors(page, error_code)
+                   else
+                     status_code_report(error_code)
+                   end
+
+          raise "#{report}\n\n"\
+            "Path: #{page.current_path}"
+        end
+
+        def return_chrome_errors(page, error_code)
+          severe_errors = logs(page).select { |log| log.level == 'SEVERE' }
+          if severe_errors.none?
+            status_code_report(error_code)
+          else
+            "There #{severe_errors.count == 1 ? 'was' : 'were'} #{severe_errors.count} "\
+              "SEVERE level error#{severe_errors.count == 1 ? '' : 's'}:\n\n#{error_report_for(severe_errors)}"
+          end
+        end
+
+        def status_code_report(error_code)
+          "Status code #{error_code} found"
+        end
+
+        def check_page_for_error_code(page)
+          error_code = 0
+          # Test for 404 img alt
+          error_code = 404 if Nokogiri::HTML.parse(page.html).xpath("//img").map { |t| t[:alt] }.first.eql?('404')
+
+          # 500 error page in header surrounded by newlines, try to match
+          five_hundred_test = Nokogiri::HTML.parse(page.html).xpath("//h1").map.first
+          unless five_hundred_test.nil?
+            error_code = 500 if five_hundred_test.text.include?('500')
+          end
+          # GDK shows backtrace rather than error page
+          error_code = 500 if Nokogiri::HTML.parse(page.html).xpath("//body//section").map { |t| t[:class] }.first.eql?('backtrace')
+
+          unless error_code == 0
+            report!(page, error_code)
+          end
+        end
+
+        def error_report_for(logs)
+          logs
+              .map(&:message)
+              .map { |message| message.gsub('\\n', "\n") }
+        end
+
+        def logs(page)
+          page.driver.browser.manage.logs.get(:browser)
+        end
+      end
+    end
+  end
+end