#419

backend/spec/models/nico_tag_relation_spec.rb

@@ -1,20 +1,12 @@
 require 'rails_helper'
 
 RSpec.describe NicoTagRelation, type: :model do
-  it 'accepts an ExternalTag regardless of its platform' do
-    id = ExternalTag.maximum(:id).to_i + 10_000
-
-    ExternalTag.insert_all!([
-        { id:,
-          platform: 'spec_external',
-          name: 'external_name',
-          post_count: 0,
-          created_at: Time.current }])
-
-    external_tag = ExternalTag.find(id)
+  it 'does not constrain the ExternalTag association to the nico platform' do
+    external_tag = create(:external_tag)
     tag = create(:tag)
+    allow(external_tag).to receive(:platform).and_return('registered_external')
+    allow(external_tag).to receive(:nico?).and_return(false)
 
-    expect(external_tag.platform_before_type_cast).to eq('spec_external')
     expect {
       described_class.create!(nico_tag: external_tag, tag:)
     }.to change(described_class, :count).by(1)