#55

backend/spec/tasks/nico_sync_spec.rb

@@ -16,17 +16,22 @@ RSpec.describe 'nico:sync' do
   end
 
   def create_nico_sanitisation_rules!
-    TagNameSanitisationRule.create!(priority: 20,
-                                    source_pattern: '\\?',
-                                    replacement: '_')
+    rules = [
+        [20, '\\?', '_'],
+        [40, '_$', ''],
+        [45, '^([^:]+\\:)?_', '\\1']]
 
-    TagNameSanitisationRule.create!(priority: 40,
-                                    source_pattern: '_$',
-                                    replacement: '')
+    priorities = rules.map(&:first)
+    source_patterns = rules.map { _1[1] }
 
-    TagNameSanitisationRule.create!(priority: 45,
-                                    source_pattern: '^([^:]+\\:)?_',
-                                    replacement: '\\1')
+    scope = TagNameSanitisationRule.unscoped
+    scope.where(priority: priorities)
+         .or(scope.where(source_pattern: source_patterns))
+         .delete_all
+
+    rules.each do |priority, source_pattern, replacement|
+      TagNameSanitisationRule.create!(priority:, source_pattern:, replacement:)
+    end
   end
 
   it '既存 post を見つけて、nico tag と linked tag を追加し、差分が出たら bot を付ける' do