Export and import hide_notifications alongside user mutes (#10335)

* Export hide_notifications along with user mutes

* Import hide_notifications along with muted users list

* Add headers for CSV exports

spec/services/import_service_spec.rb

@@ -0,0 +1,84 @@
+require 'rails_helper'
+
+RSpec.describe ImportService, type: :service do
+  let!(:account) { Fabricate(:account) }
+  let!(:bob)     { Fabricate(:account, username: 'bob') }
+  let!(:eve)     { Fabricate(:account, username: 'eve', domain: 'example.com') }
+
+  context 'import old-style list of muted users' do
+    subject { ImportService.new }
+
+    let(:csv) { attachment_fixture('mute-imports.txt') }
+
+    describe 'when no accounts are muted' do
+      let(:import) { Import.create(account: account, type: 'muting', data: csv) }
+      it 'mutes the listed accounts, including notifications' do
+        subject.call(import)
+        expect(account.muting.count).to eq 2
+        expect(Mute.find_by(account: account, target_account: bob).hide_notifications).to be true
+      end
+    end
+
+    describe 'when some accounts are muted and overwrite is not set' do
+      let(:import) { Import.create(account: account, type: 'muting', data: csv) }
+
+      it 'mutes the listed accounts, including notifications' do
+        account.mute!(bob, notifications: false)
+        subject.call(import)
+        expect(account.muting.count).to eq 2
+        expect(Mute.find_by(account: account, target_account: bob).hide_notifications).to be true
+      end
+    end
+
+    describe 'when some accounts are muted and overwrite is set' do
+      let(:import) { Import.create(account: account, type: 'muting', data: csv, overwrite: true) }
+
+      it 'mutes the listed accounts, including notifications' do
+        account.mute!(bob, notifications: false)
+        subject.call(import)
+        expect(account.muting.count).to eq 2
+        expect(Mute.find_by(account: account, target_account: bob).hide_notifications).to be true
+      end
+    end
+  end
+
+  context 'import new-style list of muted users' do
+    subject { ImportService.new }
+
+    let(:csv) { attachment_fixture('new-mute-imports.txt') }
+
+    describe 'when no accounts are muted' do
+      let(:import) { Import.create(account: account, type: 'muting', data: csv) }
+      it 'mutes the listed accounts, respecting notifications' do
+        subject.call(import)
+        expect(account.muting.count).to eq 2
+        expect(Mute.find_by(account: account, target_account: bob).hide_notifications).to be true
+        expect(Mute.find_by(account: account, target_account: eve).hide_notifications).to be false
+      end
+    end
+
+    describe 'when some accounts are muted and overwrite is not set' do
+      let(:import) { Import.create(account: account, type: 'muting', data: csv) }
+
+      it 'mutes the listed accounts, respecting notifications' do
+        account.mute!(bob, notifications: true)
+        subject.call(import)
+        expect(account.muting.count).to eq 2
+        expect(Mute.find_by(account: account, target_account: bob).hide_notifications).to be true
+        expect(Mute.find_by(account: account, target_account: eve).hide_notifications).to be false
+      end
+    end
+
+    describe 'when some accounts are muted and overwrite is set' do
+      let(:import) { Import.create(account: account, type: 'muting', data: csv, overwrite: true) }
+
+      it 'mutes the listed accounts, respecting notifications' do
+        account.mute!(bob, notifications: true)
+        subject.call(import)
+        expect(account.muting.count).to eq 2
+        expect(Mute.find_by(account: account, target_account: bob).hide_notifications).to be true
+        expect(Mute.find_by(account: account, target_account: eve).hide_notifications).to be false
+      end
+    end
+  end
+end