New Members::DestroyService

This is to ensure we don't send unwanted notifications when deleting a
project. In other words, stop abusing AR callbacks and use services.

Signed-off-by: Rémy Coutable <remy@rymai.me>

4 files changed, 43 insertions, 32 deletions

diff --git a/spec/models/member_spec.rb b/spec/models/member_spec.rb
index 3ed3202ac6c..e9134a3d283 100644
--- a/spec/models/member_spec.rb
+++ b/spec/models/member_spec.rb
@@ -134,18 +134,6 @@ describe Member, models: true do
     it { is_expected.to respond_to(:user_email) }
   end
 
-  describe 'Callbacks' do
-    describe 'after_destroy :post_decline_request, if: :request?' do
-      let(:member) { create(:project_member, requested_at: Time.now.utc) }
-
-      it 'calls #post_decline_request' do
-        expect(member).to receive(:post_decline_request)
-
-        member.destroy
-      end
-    end
-  end
-
   describe ".add_user" do
     let!(:user)    { create(:user) }
     let(:project) { create(:project) }
diff --git a/spec/models/members/group_member_spec.rb b/spec/models/members/group_member_spec.rb
index eeb74a462ac..18439cac2a4 100644
--- a/spec/models/members/group_member_spec.rb
+++ b/spec/models/members/group_member_spec.rb
@@ -61,16 +61,6 @@ describe GroupMember, models: true do
       end
     end
 
-    describe '#post_decline_request' do
-      it 'calls NotificationService.decline_group_access_request' do
-        member = create(:group_member, user: build_stubbed(:user), requested_at: Time.now)
-
-        expect_any_instance_of(NotificationService).to receive(:decline_group_access_request)
-
-        member.__send__(:post_decline_request)
-      end
-    end
-
     describe '#real_source_type' do
       subject { create(:group_member).real_source_type }
 
diff --git a/spec/models/members/project_member_spec.rb b/spec/models/members/project_member_spec.rb
index 1e466f9c620..bbf65edb27c 100644
--- a/spec/models/members/project_member_spec.rb
+++ b/spec/models/members/project_member_spec.rb
@@ -152,15 +152,5 @@ describe ProjectMember, models: true do
         member.__send__(:after_accept_request)
       end
     end
-
-    describe '#post_decline_request' do
-      it 'calls NotificationService.decline_project_access_request' do
-        member = create(:project_member, user: build_stubbed(:user), requested_at: Time.now)
-
-        expect_any_instance_of(NotificationService).to receive(:decline_project_access_request)
-
-        member.__send__(:post_decline_request)
-      end
-    end
   end
 end
diff --git a/spec/services/members/destroy_service_spec.rb b/spec/services/members/destroy_service_spec.rb
new file mode 100644
index 00000000000..aa002b4bd22
--- /dev/null
+++ b/spec/services/members/destroy_service_spec.rb
@@ -0,0 +1,43 @@
+require 'spec_helper'
+
+describe Members::DestroyService, services: true do
+  let(:user) { create(:user) }
+  let(:project) { create(:project) }
+  let!(:member) { create(:project_member, source: project) }
+
+  context 'when current user cannot destroy the given member' do
+    before do
+      project.team << [user, :developer]
+    end
+
+    it 'does not destroy the member' do
+      expect(destroy_member(member, user)).not_to be_destroyed
+    end
+  end
+
+  context 'when current user can destroy the given member' do
+    before do
+      project.team << [user, :master]
+    end
+
+    it 'destroys the member' do
+      expect(destroy_member(member, user)).to be_destroyed
+    end
+
+    context 'when the given member is a requester' do
+      before do
+        member.update_column(:requested_at, Time.now)
+      end
+
+      it 'calls Member#after_decline_request' do
+        expect_any_instance_of(NotificationService).to receive(:decline_access_request).with(member)
+
+        destroy_member(member, user)
+      end
+    end
+  end
+
+  def destroy_member(member, user)
+    Members::DestroyService.new(member, user).execute
+  end
+end