Mono repo -> Master (#22553)

Combines the following repositories into one:

https://github.com/mattermost/mattermost-server
https://github.com/mattermost/mattermost-webapp
https://github.com/mattermost/focalboard
https://github.com/mattermost/mattermost-plugin-playbooks

server/channels/jobs/migrations/helper_test.go

@@ -0,0 +1,32 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package migrations
+
+import (
+	"testing"
+
+	"github.com/mattermost/mattermost-server/v6/model"
+	"github.com/mattermost/mattermost-server/v6/server/channels/store"
+)
+
+func Setup(tb testing.TB) store.Store {
+	store := mainHelper.GetStore()
+	store.DropAllTables()
+	return store
+}
+
+func deleteAllJobsByTypeAndMigrationKey(store store.Store, jobType string, migrationKey string) {
+	jobs, err := store.Job().GetAllByType(model.JobTypeMigrations)
+	if err != nil {
+		panic(err)
+	}
+
+	for _, job := range jobs {
+		if key, ok := job.Data[JobDataKeyMigration]; ok && key == migrationKey {
+			if _, err = store.Job().Delete(job.Id); err != nil {
+				panic(err)
+			}
+		}
+	}
+}