Restructure methods in execution_environment.rb

app/models/execution_environment.rb

@@ -19,8 +19,9 @@ class ExecutionEnvironment < ApplicationRecord
 
   scope :with_exercises, -> { where('id IN (SELECT execution_environment_id FROM exercises)') }
 
+  before_validation :clean_exposed_ports
+
   validate :valid_test_setup?
-  validate :working_docker_image?, if: :validate_docker_image?
   validates :docker_image, presence: true
   validates :memory_limit,
     numericality: {greater_than_or_equal_to: MINIMUM_MEMORY_LIMIT, only_integer: true}, presence: true
@@ -30,7 +31,6 @@ class ExecutionEnvironment < ApplicationRecord
   validates :pool_size, numericality: {only_integer: true}, presence: true
   validates :run_command, presence: true
   validates :cpu_limit, presence: true, numericality: {greater_than: 0, only_integer: true}
-  before_validation :clean_exposed_ports
   validates :exposed_ports, array: {numericality: {greater_than_or_equal_to: 0, less_than: 65_536, only_integer: true}}
 
   after_destroy :delete_runner_environment
@@ -59,10 +59,15 @@ class ExecutionEnvironment < ApplicationRecord
     exposed_ports.join(', ')
   end
 
+  private
+
+  def set_default_values
+    set_default_values_if_present(permitted_execution_time: 60, pool_size: 0)
+  end
+
   def clean_exposed_ports
     self.exposed_ports = exposed_ports.uniq.sort
   end
-  private :clean_exposed_ports
 
   def valid_test_setup?
     if test_command? ^ testing_framework?
@@ -71,12 +76,10 @@ class ExecutionEnvironment < ApplicationRecord
           attribute: I18n.t('activerecord.attributes.execution_environment.testing_framework')))
     end
   end
-  private :valid_test_setup?
 
   def validate_docker_image?
     docker_image.present? && !Rails.env.test?
   end
-  private :validate_docker_image?
 
   def working_docker_image?
     sync_runner_environment