Show error when quick actions is not available

This adds an error message when a quick action is unavailable instead of
silently ignoring the quick action

changelogs/unreleased/notes_quick_action_feedback.yml

+---
+title: Give better feedback when quick actions have no effect
+merge_request: 57570
+author: Hilco van der Wilk
+type: fixed

ee/spec/services/quick_actions/interpret_service_spec.rb

@@ -390,11 +390,11 @@ RSpec.describe QuickActions::InterpretService do
               allow(current_user).to receive(:can?).with(:admin_issue, project).and_return(false)
             end
 
-            it 'returns empty message' do
+            it 'returns an error message' do
               _, updates, message = service.execute(content, issue)
 
               expect(updates).to be_empty
-              expect(message).to be_empty
+              expect(message).to eq('Could not apply iteration command.')
             end
           end
         end
@@ -458,11 +458,11 @@ RSpec.describe QuickActions::InterpretService do
             allow(current_user).to receive(:can?).with(:admin_issue, project).and_return(false)
           end
 
-          it 'returns empty message' do
+          it 'returns an error message' do
             _, updates, message = service.execute(content, issue)
 
             expect(updates).to be_empty
-            expect(message).to be_empty
+            expect(message).to eq('Could not apply remove_iteration command.')
           end
         end
       end

lib/gitlab/quick_actions/command_definition.rb

@@ -56,15 +56,18 @@ module Gitlab
       end
 
       def execute(context, arg)
-        return unless executable?(context)
+        return if noop?
 
         count_commands_executed_in(context)
 
+        return unless available?(context)
+
         execute_block(action_block, context, arg)
       end
 
       def execute_message(context, arg)
-        return unless executable?(context)
+        return if noop?
+        return _('Could not apply %{name} command.') % { name: name } unless available?(context)
 
         if execution_message.respond_to?(:call)
           execute_block(execution_message, context, arg)
@@ -101,10 +104,6 @@ module Gitlab
 
       private
 
-      def executable?(context)
-        !noop? && available?(context)
-      end
-
       def count_commands_executed_in(context)
         return unless context.respond_to?(:commands_executed_count=)
 

locale/gitlab.pot

@@ -8645,6 +8645,9 @@ msgstr ""
 msgid "Could not add admins as members"
 msgstr ""
 
+msgid "Could not apply %{name} command."
+msgstr ""
+
 msgid "Could not archive %{design}. Please try again."
 msgstr ""
 

spec/fixtures/emails/update_commands_only.eml

+Return-Path: <jake@adventuretime.ooo>
+Received: from iceking.adventuretime.ooo ([unix socket]) by iceking (Cyrus v2.2.13-Debian-2.2.13-19+squeeze3) with LMTPA; Thu, 13 Jun 2013 17:03:50 -0400
+Received: from mail-ie0-x234.google.com (mail-ie0-x234.google.com [IPv6:2607:f8b0:4001:c03::234]) by iceking.adventuretime.ooo (8.14.3/8.14.3/Debian-9.4) with ESMTP id r5DL3nFJ016967 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for <reply+59d8df8370b7e95c5a49fbf86aeb2c93@appmail.adventuretime.ooo>; Thu, 13 Jun 2013 17:03:50 -0400
+Received: by mail-ie0-f180.google.com with SMTP id f4so21977375iea.25 for <reply+59d8df8370b7e95c5a49fbf86aeb2c93@appmail.adventuretime.ooo>; Thu, 13 Jun 2013 14:03:48 -0700
+Received: by 10.0.0.1 with HTTP; Thu, 13 Jun 2013 14:03:48 -0700
+Date: Thu, 13 Jun 2013 17:03:48 -0400
+From: Jake the Dog <jake@adventuretime.ooo>
+To: reply+59d8df8370b7e95c5a49fbf86aeb2c93@appmail.adventuretime.ooo
+Message-ID: <CADkmRc+rNGAGGbV2iE5p918UVy4UyJqVcXRO2=otppgzduJSg@mail.gmail.com>
+In-Reply-To: <issue_1@localhost>
+References: <reply-59d8df8370b7e95c5a49fbf86aeb2c93@localhost> <issue_1@localhost>
+Subject: re: [Discourse Meta] eviltrout posted in 'Adventure Time Sux'
+Mime-Version: 1.0
+Content-Type: text/plain;
+ charset=ISO-8859-1
+Content-Transfer-Encoding: 7bit
+X-Sieve: CMU Sieve 2.2
+X-Received: by 10.0.0.1 with SMTP id n7mr11234144ipb.85.1371157428600; Thu,
+ 13 Jun 2013 14:03:48 -0700 (PDT)
+X-Scanned-By: MIMEDefang 2.69 on IPv6:2001:470:1d:165::1
+
+/close

spec/lib/gitlab/email/handler/create_note_on_issuable_handler_spec.rb

@@ -22,7 +22,7 @@ RSpec.describe Gitlab::Email::Handler::CreateNoteOnIssuableHandler do
   it_behaves_like :note_handler_shared_examples, true do
     let_it_be(:recipient) { user }
 
-    let(:update_commands_only) { email_reply_fixture('emails/update_commands_only_reply.eml') }
+    let(:update_commands_only) { email_reply_fixture('emails/update_commands_only.eml') }
     let(:no_content)           { email_reply_fixture('emails/no_content_reply.eml') }
     let(:commands_in_reply)    { email_reply_fixture('emails/commands_in_reply.eml') }
     let(:with_quick_actions)   { email_reply_fixture('emails/valid_reply_with_quick_actions.eml') }

spec/lib/gitlab/quick_actions/command_definition_spec.rb

@@ -127,10 +127,10 @@ RSpec.describe Gitlab::QuickActions::CommandDefinition do
           subject.condition_block = proc { false }
         end
 
-        it "doesn't execute the command" do
+        it "counts the command as executed" do
           subject.execute(context, nil)
 
-          expect(context.commands_executed_count).to be_nil
+          expect(context.commands_executed_count).to eq(1)
           expect(context.run).to be false
         end
       end
@@ -238,8 +238,8 @@ RSpec.describe Gitlab::QuickActions::CommandDefinition do
           subject.condition_block = proc { false }
         end
 
-        it 'returns nil' do
-          expect(subject.execute_message({}, nil)).to be_nil
+        it 'returns an error message' do
+          expect(subject.execute_message({}, nil)).to eq('Could not apply command command.')
         end
       end
 

spec/services/notes/create_service_spec.rb

@@ -345,6 +345,24 @@ RSpec.describe Notes::CreateService do
 
           expect(note.errors[:commands_only]).to be_present
         end
+
+        it 'adds commands failed message to note errors' do
+          note_text = %(/reopen)
+          note = described_class.new(project, user, opts.merge(note: note_text)).execute
+
+          expect(note.errors[:commands_only]).to contain_exactly('Could not apply reopen command.')
+        end
+
+        it 'generates success and failed error messages' do
+          note_text = %(/close\n/reopen)
+          service = double(:service)
+          allow(Issues::UpdateService).to receive(:new).and_return(service)
+          expect(service).to receive(:execute)
+
+          note = described_class.new(project, user, opts.merge(note: note_text)).execute
+
+          expect(note.errors[:commands_only]).to contain_exactly('Closed this issue. Could not apply reopen command.')
+        end
       end
     end
 

spec/support/shared_contexts/email_shared_context.rb

@@ -82,8 +82,8 @@ RSpec.shared_examples :note_handler_shared_examples do |forwardable|
       let!(:email_raw) { update_commands_only }
 
       context 'and current user cannot update noteable' do
-        it 'raises a CommandsOnlyNoteError' do
-          expect { receiver.execute }.to raise_error(Gitlab::Email::InvalidNoteError)
+        it 'does not raise an error' do
+          expect { receiver.execute }.not_to raise_error
         end
       end
 
@@ -92,15 +92,11 @@ RSpec.shared_examples :note_handler_shared_examples do |forwardable|
           project.add_developer(user)
         end
 
-        it 'does not raise an error', unless: forwardable do
+        it 'does not raise an error' do
           expect { receiver.execute }.to change { noteable.resource_state_events.count }.by(1)
 
           expect(noteable.reload).to be_closed
         end
-
-        it 'raises an InvalidNoteError', if: forwardable do
-          expect { receiver.execute }.to raise_error(Gitlab::Email::InvalidNoteError)
-        end
       end
     end
   end