ensure feature file syntaxis

Author: ravelinx22

calabash-android-features-skeleton/support/app_installation_hooks.rb

@@ -1,11 +1,13 @@
 require 'calabash-android/management/app_installation'
 
-AfterConfiguration do |config|
+AfterConfiguration do |_config|
   FeatureMemory.feature = nil
 end
 
 Before do |scenario|
-  scenario = scenario.scenario_outline if scenario.respond_to?(:scenario_outline)
+  scenario = scenario.scenario_outline if scenario.respond_to?(
+    :scenario_outline
+  )
 
   feature = scenario.feature
   if FeatureMemory.feature != feature || ENV['RESET_BETWEEN_SCENARIOS'] == '1'

lib/kraken-mobile/models/feature_file.rb

@@ -47,6 +47,45 @@ def tags_for_user_id(user_id)
     user_scenario.tags.reject { |tag| tag == user_tag }
   end
 
+  def right_syntax?
+    all_scenarios_have_a_user_tag? &&
+      only_one_user_tag_for_each_scenario? &&
+      !duplicate_tags_for_a_user?
+  end
+
+  def duplicate_tags_for_a_user?
+    taken_user_tags = {}
+    scenarios.each do |scenario|
+      user_tag = scenario.tags.select do |tag|
+        tag.start_with?('@user')
+      end.first
+      return true unless taken_user_tags[user_tag].nil?
+
+      taken_user_tags[user_tag] = user_tag
+    end
+    false
+  end
+
+  def only_one_user_tag_for_each_scenario?
+    scenarios.each do |scenario|
+      user_tags = scenario.tags.select do |tag|
+        tag.start_with?('@user')
+      end
+      return false if user_tags.count != 1
+    end
+    true
+  end
+
+  def all_scenarios_have_a_user_tag?
+    scenarios.each do |scenario|
+      user_tag = scenario.tags.select do |tag|
+        tag.start_with?('@user')
+      end.first
+      return false if user_tag.nil?
+    end
+    true
+  end
+
   private
 
   def read_content

lib/kraken-mobile/test_scenario.rb

@@ -1,3 +1,4 @@
+require 'kraken-mobile/helpers/feature_analyzer'
 require 'kraken-mobile/mobile/mobile_process'
 require 'kraken-mobile/models/feature_file'
 require 'kraken-mobile/models/web_device'
@@ -34,6 +35,11 @@ def before_execution
   end
 
   def run
+    unless @feature_file.right_syntax?
+      raise "ERROR: Verify feature file #{@file_path} has one unique @user tag"\
+      ' for each scenario'
+    end
+
     before_execution
     execute
     after_execution

lib/kraken_mobile.rb

@@ -28,7 +28,7 @@ def start
   #-------------------------------
   # Helpers
   #-------------------------------
-  def apk_path_for_process_id(process_id)
+  def apk_path_for_process_id(_process_id)
     @apk_path
   end