Domain block service cleanup (#2490)

* Add coverage for domain block service with silence

* Get rid of warning about find_each and order

* Move domain_block to attr_reader

* Move optional clear_media into silence_accounts method

* Use blocked_domain method to reduce passed vars

* Extract blocked_domain_accounts method to find accounts on the domain

* Extract media_from_blocked_domain method to find relevant attachments

* Separate destruction of account images and account attachments

spec/services/block_domain_service_spec.rb

@@ -13,21 +13,46 @@ RSpec.describe BlockDomainService do
     bad_status1
     bad_status2
     bad_attachment
-
-    subject.call(DomainBlock.create!(domain: 'evil.org', severity: :suspend))
   end
 
-  it 'creates a domain block' do
-    expect(DomainBlock.blocked?('evil.org')).to be true
+  describe 'for a suspension' do
+    before do
+      subject.call(DomainBlock.create!(domain: 'evil.org', severity: :suspend))
+    end
+
+    it 'creates a domain block' do
+      expect(DomainBlock.blocked?('evil.org')).to be true
+    end
+
+    it 'removes remote accounts from that domain' do
+      expect(Account.find_remote('badguy666', 'evil.org').suspended?).to be true
+    end
+
+    it 'removes the remote accounts\'s statuses and media attachments' do
+      expect { bad_status1.reload }.to raise_exception ActiveRecord::RecordNotFound
+      expect { bad_status2.reload }.to raise_exception ActiveRecord::RecordNotFound
+      expect { bad_attachment.reload }.to raise_exception ActiveRecord::RecordNotFound
+    end
   end
 
-  it 'removes remote accounts from that domain' do
-    expect(Account.find_remote('badguy666', 'evil.org').suspended?).to be true
-  end
+  describe 'for a silence with reject media' do
+    before do
+      subject.call(DomainBlock.create!(domain: 'evil.org', severity: :silence, reject_media: true))
+    end
 
-  it 'removes the remote accounts\'s statuses and media attachments' do
-    expect { bad_status1.reload }.to raise_exception ActiveRecord::RecordNotFound
-    expect { bad_status2.reload }.to raise_exception ActiveRecord::RecordNotFound
-    expect { bad_attachment.reload }.to raise_exception ActiveRecord::RecordNotFound
+    it 'does not create a domain block' do
+      expect(DomainBlock.blocked?('evil.org')).to be false
+    end
+
+    it 'silences remote accounts from that domain' do
+      expect(Account.find_remote('badguy666', 'evil.org').silenced?).to be true
+    end
+
+    it 'leaves the domains status and attachements, but clears media' do
+      expect { bad_status1.reload }.not_to raise_error
+      expect { bad_status2.reload }.not_to raise_error
+      expect { bad_attachment.reload }.not_to raise_error
+      expect(bad_attachment.file.exists?).to be false
+    end
   end
 end