Delete invalid assess testruns

Amends 264927e

Author: MrSerth

db/migrate/20250513141128_delete_invalid_assess_testruns.rb

@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+class DeleteInvalidAssessTestruns < ActiveRecord::Migration[8.0]
+  class Testrun < ApplicationRecord
+  end
+
+  disable_ddl_transaction!
+
+  def change
+    # In commit 9c3ec3c (2023-02-17), we introduced a bug, which added an additional undesired assess testrun with no 'passed' value.
+    # We fixed this bug in 264927e (2023-07-15), but haven't removed the invalid testruns yet.
+    Testrun.where(
+      cause: 'assess',
+      passed: nil,
+      output: nil,
+      file_id: nil,
+      container_execution_time: nil,
+      waiting_for_container_time: nil,
+      exit_code: nil
+    ).delete_all
+  end
+end