1 files changed, 56 insertions, 0 deletions
diff --git a/spec/support/database_cleaner.rb b/spec/support/database_cleaner.rb
new file mode 100644
index 00000000000..edd7de94203
--- /dev/null
+++ b/spec/support/database_cleaner.rb
@@ -0,0 +1,56 @@
+# frozen_string_literal: true
+
+require 'database_cleaner/active_record/deletion'
+require_relative 'db_cleaner'
+
+module FakeInformationSchema
+  # Work around a bug in DatabaseCleaner when using the deletion strategy:
+  # https://github.com/DatabaseCleaner/database_cleaner/issues/347
+  #
+  # On MySQL, if the information schema is said to exist, we use an inaccurate
+  # row count leading to some tables not being cleaned when they should
+  def information_schema_exists?(_connection)
+    false
+  end
+end
+
+DatabaseCleaner::ActiveRecord::Deletion.prepend(FakeInformationSchema)
+
+RSpec.configure do |config|
+  include DbCleaner
+
+  # Ensure all sequences are reset at the start of the suite run
+  config.before(:suite) do
+    setup_database_cleaner
+    DatabaseCleaner.clean_with(:truncation)
+  end
+
+  config.append_after(:context) do
+    DatabaseCleaner.clean_with(:deletion, cache_tables: false)
+  end
+
+  config.before do
+    setup_database_cleaner
+    DatabaseCleaner.strategy = :transaction
+  end
+
+  config.before(:each, :js) do
+    DatabaseCleaner.strategy = :deletion, { except: deletion_except_tables, cache_tables: false }
+  end
+
+  config.before(:each, :delete) do
+    DatabaseCleaner.strategy = :deletion, { except: deletion_except_tables, cache_tables: false }
+  end
+
+  config.before(:each, :migration) do
+    DatabaseCleaner.strategy = :deletion, { cache_tables: false }
+  end
+
+  config.before do
+    DatabaseCleaner.start
+  end
+
+  config.append_after do
+    DatabaseCleaner.clean
+  end
+end