public static async Task <MigrationSummary <MigrationInfo> > ApplyMigrationsFromTestClass <T>(
this MigrationEngine <DatabaseContext> migrationEngine,
MigrationApproach approach = MigrationApproach.MigrationsWithNewerVersions)
{
var testMigrations = new List <PendingMigration <long> >();
foreach (var nestedType in typeof(T).GetNestedTypes())
{
var versionAttribute = nestedType.GetCustomAttribute <MigrationVersionAttribute>();
if (nestedType.IsClass && versionAttribute is not null)
{
var migration = new PendingMigration <long>(versionAttribute.Version, nestedType);
testMigrations.Add(migration);
}
}
var migrationPlan = approach == MigrationApproach.MigrationsWithNewerVersions ?
await migrationEngine.GetPlanForNewMigrationsAsync() :
await migrationEngine.GetPlanForNonAppliedMigrationsAsync();
var pendingMigrations = migrationPlan.PendingMigrations !
.Intersect(testMigrations)
.ToList();
return(await migrationEngine.ApplyMigrationsAsync(pendingMigrations));
}