1 files changed, 30 insertions, 0 deletions
diff --git a/spec/migrations/remove_alerts_service_records_spec.rb b/spec/migrations/remove_alerts_service_records_spec.rb
new file mode 100644
index 00000000000..eaf9f90b445
--- /dev/null
+++ b/spec/migrations/remove_alerts_service_records_spec.rb
@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+require Rails.root.join('db', 'post_migrate', '20210107194543_remove_alerts_service_records.rb')
+
+RSpec.describe RemoveAlertsServiceRecords do
+  let(:services) { table(:services) }
+  let(:alerts_service_data) { table(:alerts_service_data) }
+
+  before do
+    5.times do
+      service = services.create!(type: 'AlertsService')
+      alerts_service_data.create!(service_id: service.id)
+    end
+
+    services.create!(type: 'SomeOtherType')
+  end
+
+  it 'removes services records of type AlertsService and corresponding data', :aggregate_failures do
+    expect(services.count).to eq(6)
+    expect(alerts_service_data.count).to eq(5)
+
+    migrate!
+
+    expect(services.count).to eq(1)
+    expect(services.first.type).to eq('SomeOtherType')
+    expect(services.where(type: 'AlertsService')).to be_empty
+    expect(alerts_service_data.all).to be_empty
+  end
+end