Add specs for AccountModerationNotePolicy (#9571)

spec/policies/account_moderation_note_policy_spec.rb

@@ -0,0 +1,52 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+require 'pundit/rspec'
+
+RSpec.describe AccountModerationNotePolicy do
+  let(:subject) { described_class }
+  let(:admin)   { Fabricate(:user, admin: true).account }
+  let(:john)    { Fabricate(:user).account }
+
+  permissions :create? do
+    context 'staff' do
+      it 'grants to create' do
+        expect(subject).to permit(admin, AccountModerationNotePolicy)
+      end
+    end
+
+    context 'not staff' do
+      it 'denies to create' do
+        expect(subject).to_not permit(john, AccountModerationNotePolicy)
+      end
+    end
+  end
+
+  permissions :destroy? do
+    let(:account_moderation_note) do
+      Fabricate(:account_moderation_note,
+                account: john,
+                target_account: Fabricate(:account))
+    end
+
+    context 'admin' do
+      it 'grants to destroy' do
+        expect(subject).to permit(admin, AccountModerationNotePolicy)
+      end
+    end
+
+    context 'owner' do
+      it 'grants to destroy' do
+        expect(subject).to permit(john, account_moderation_note)
+      end
+    end
+
+    context 'neither admin nor owner' do
+      let(:kevin) { Fabricate(:user).account }
+
+      it 'denies to destroy' do
+        expect(subject).to_not permit(kevin, account_moderation_note)
+      end
+    end
+  end
+end