DEV: Refactor some mail receiver related specs.

spec/components/email/receiver_spec.rb

@@ -550,26 +550,33 @@ describe Email::Receiver do
       expect(Topic.last.ordered_posts[-1].post_type).to eq(Post.types[:moderator_action])
     end
 
-    it "associates email replies using both 'In-Reply-To' and 'References' headers when 'find_related_post_with_key' is disabled" do
-      SiteSetting.find_related_post_with_key = false
+    describe "when 'find_related_post_with_key' is disabled" do
+      before do
+        SiteSetting.find_related_post_with_key = false
+      end
 
-      expect { process(:email_reply_1) }.to change(Topic, :count)
+      it "associates email replies using both 'In-Reply-To' and 'References' headers" do
+        expect { process(:email_reply_1) }
+          .to change(Topic, :count).by(1) & change(Post, :count).by(3)
 
-      topic = Topic.last
+        topic = Topic.last
+        ordered_posts = topic.ordered_posts
 
-      expect { process(:email_reply_2) }.to change { topic.posts.count }
-      expect { process(:email_reply_3) }.to change { topic.posts.count }
+        expect(ordered_posts.first.raw).to eq('This is email reply **1**.')
 
-      # Why 5 when we only processed 3 emails?
-      #   - 3 of them are indeed "regular" posts generated from the emails
-      #   - The 2 others are "small action" posts automatically added because
-      #     we invited 2 users (two@foo.com and three@foo.com)
-      expect(topic.posts.count).to eq(5)
+        ordered_posts[1..-1].each do |post|
+          expect(post.action_code).to eq('invited_user')
+          expect(post.user.email).to eq('one@foo.com')
 
-      # trash all but the 1st post
-      topic.ordered_posts[1..-1].each(&:trash!)
+          expect(%w{two three}.include?(post.custom_fields["action_code_who"]))
+            .to eq(true)
+        end
 
-      expect { process(:email_reply_4) }.to change { topic.posts.count }
+        expect { process(:email_reply_2) }.to change { topic.posts.count }.by(1)
+        expect { process(:email_reply_3) }.to change { topic.posts.count }.by(1)
+        ordered_posts[1..-1].each(&:trash!)
+        expect { process(:email_reply_4) }.to change { topic.posts.count }.by(1)
+      end
     end
 
     it "supports any kind of attachments when 'allow_all_attachments_for_group_messages' is enabled" do
@@ -1000,7 +1007,6 @@ describe Email::Receiver do
 
     before do
       SiteSetting.block_auto_generated_emails = true
-      SiteSetting.find_related_post_with_key = true
     end
 
     it "should allow creating topic even when email is autogenerated" do