Hide score button if exercise has no tests

We check for all teacher-defined assessments (linter and unit tests) to determine whether scoring should be possible

app/controllers/exercises_controller.rb

@@ -324,6 +324,8 @@ class ExercisesController < ApplicationController
       end
     end
 
+    @embed_options[:disable_score] = true unless @exercise.teacher_defined_assessment?
+
     @hide_rfc_button = @embed_options[:disable_rfc]
 
     @search = Search.new

app/controllers/submissions_controller.rb

@@ -83,7 +83,7 @@ class SubmissionsController < ApplicationController
       client_socket = tubesock
 
       client_socket.onopen do |_event|
-        kill_client_socket(client_socket) if @embed_options[:disable_run]
+        return kill_client_socket(client_socket) if @embed_options[:disable_run]
       end
 
       client_socket.onclose do |_event|
@@ -199,7 +199,7 @@ class SubmissionsController < ApplicationController
     hijack do |tubesock|
       tubesock.onopen do |_event|
         switch_locale do
-          kill_client_socket(tubesock) if @embed_options[:disable_score]
+          return kill_client_socket(tubesock) if @embed_options[:disable_score] || !@submission.exercise.teacher_defined_assessment?
 
           # The score is stored separately, we can forward it to the client immediately
           tubesock.send_data(JSON.dump(@submission.calculate_score))
@@ -226,7 +226,7 @@ class SubmissionsController < ApplicationController
     hijack do |tubesock|
       tubesock.onopen do |_event|
         switch_locale do
-          kill_client_socket(tubesock) if @embed_options[:disable_run]
+          return kill_client_socket(tubesock) if @embed_options[:disable_run]
 
           # The score is stored separately, we can forward it to the client immediately
           tubesock.send_data(JSON.dump(@submission.test(@file)))

app/models/exercise.rb

@@ -205,6 +205,10 @@ class Exercise < ApplicationRecord
     "
   end
 
+  def teacher_defined_assessment?
+    files.any?(&:teacher_defined_assessment?)
+  end
+
   def get_working_times_for_study_group(study_group_id, user = nil)
     user_progress = []
     additional_user_data = []

app/policies/exercise_policy.rb

@@ -29,10 +29,14 @@ class ExercisePolicy < AdminOrAuthorPolicy
     define_method(action) { (admin? || teacher_in_study_group? || author?) && @user.codeharbor_link }
   end
 
-  %i[implement? working_times? intervention? search? submit? reload?].each do |action|
+  %i[implement? working_times? intervention? search? reload?].each do |action|
     define_method(action) { everyone }
   end
 
+  def submit?
+    everyone && @record.teacher_defined_assessment?
+  end
+
   class Scope < Scope
     def resolve
       if @user.admin?

spec/controllers/exercises_controller_spec.rb

@@ -6,7 +6,10 @@ describe ExercisesController do
   let(:exercise) { create(:dummy) }
   let(:user) { create(:admin) }
 
-  before { allow(controller).to receive(:current_user).and_return(user) }
+  before do
+    create(:test_file, context: exercise)
+    allow(controller).to receive(:current_user).and_return(user)
+  end
 
   describe 'PUT #batch_update' do
     let(:attributes) { {public: 'true'} }

spec/features/editor_spec.rb

@@ -23,6 +23,7 @@ describe 'Editor', js: true do
     }]
   end
   let(:user) { create(:teacher) }
+  let(:exercise_without_test) { create(:tdd) }
 
   before do
     visit(sign_in_path)
@@ -93,12 +94,28 @@ describe 'Editor', js: true do
     end
   end
 
+  context 'when an exercise has one or more teacher-defined assessments' do
+    it 'displays the score button' do
+      visit(implement_exercise_path(exercise))
+      expect(page).to have_content(exercise.title)
+      expect(page).to have_content(I18n.t('exercises.editor.score'))
+    end
+  end
+
+  context 'when an exercise has no teacher-defined assessment' do
+    it 'disables the score button' do
+      visit(implement_exercise_path(exercise_without_test))
+      expect(page).to have_content(exercise_without_test.title)
+      expect(page).not_to have_content(I18n.t('exercises.editor.score'))
+    end
+  end
+
   it 'contains a button for submitting the exercise' do
     submission = build(:submission, user: user, exercise: exercise)
     allow(submission).to receive(:calculate_score).and_return(scoring_response)
     allow(Submission).to receive(:find).and_return(submission)
     click_button(I18n.t('exercises.editor.score'))
-    expect(page).not_to have_css('#submit_outdated')
+    expect(page).not_to have_content(I18n.t('exercises.editor.tooltips.exercise_deadline_passed'))
-    expect(page).to have_css('#submit')
+    expect(page).to have_content(I18n.t('exercises.editor.submit'))
   end
 end

spec/models/exercise_spec.rb

@@ -124,4 +124,41 @@ describe Exercise do
       expect(exercise.duplicate).to be_a(described_class)
     end
   end
+
+  describe '#teacher_defined_assessment?' do
+    let(:exercise) { create(:dummy) }
+
+    context 'when no assessment is defined' do
+      it 'returns false' do
+        expect(exercise).not_to be_teacher_defined_assessment
+      end
+    end
+
+    context 'when unit tests are defined' do
+      before { create(:test_file, context: exercise) }
+
+      it 'returns true' do
+        expect(exercise).to be_teacher_defined_assessment
+      end
+    end
+
+    context 'when linter tests are defined' do
+      before { create(:test_file, context: exercise, role: 'teacher_defined_linter') }
+
+      it 'returns true' do
+        expect(exercise).to be_teacher_defined_assessment
+      end
+    end
+
+    context 'when unit and linter tests are defined' do
+      before do
+        create(:test_file, context: exercise)
+        create(:test_file, context: exercise, role: 'teacher_defined_linter')
+      end
+
+      it 'returns true' do
+        expect(exercise).to be_teacher_defined_assessment
+      end
+    end
+  end
 end

spec/policies/exercise_policy_spec.rb

@@ -112,7 +112,7 @@ describe ExercisePolicy do
     end
   end
 
-  %i[implement? submit?].each do |action|
+  %i[implement?].each do |action|
     permissions(action) do
       it 'grants access to anyone' do
         %i[admin external_user teacher].each do |factory_name|
@@ -122,6 +122,28 @@ describe ExercisePolicy do
     end
   end
 
+  %i[submit?].each do |action|
+    permissions(action) do
+      context 'when teacher-defined assessments are available' do
+        before { create(:test_file, context: exercise) }
+
+        it 'grants access to anyone' do
+          %i[admin external_user teacher].each do |factory_name|
+            expect(policy).to permit(build(factory_name), exercise)
+          end
+        end
+      end
+
+      context 'when teacher-defined assessments are not available' do
+        it 'does not grant access to anyone' do
+          %i[admin external_user teacher].each do |factory_name|
+            expect(policy).not_to permit(build(factory_name), exercise)
+          end
+        end
+      end
+    end
+  end
+
   describe ExercisePolicy::Scope do
     describe '#resolve' do
       let(:admin) { create(:admin) }