public async Task Table_Drop_All()
        {
            var dbName = HelperDatabase.GetRandomName("tcp_lo_");
            await HelperDatabase.CreateDatabaseAsync(ProviderType.Sql, dbName, true);

            var cs          = HelperDatabase.GetConnectionString(ProviderType.Sql, dbName);
            var sqlProvider = new SqlSyncProvider(cs);

            var ctx = new AdventureWorksContext((dbName, ProviderType.Sql, sqlProvider), true, false);
            await ctx.Database.EnsureCreatedAsync();

            var options = new SyncOptions();
            var setup   = new SyncSetup(this.Tables);

            var localOrchestrator = new LocalOrchestrator(sqlProvider, options, setup);

            var onDropping = 0;
            var onDropped  = 0;

            localOrchestrator.OnTableDropping(ttca => onDropping++);
            localOrchestrator.OnTableDropped(ttca => onDropped++);

            await localOrchestrator.DropTablesAsync();

            Assert.Equal(this.Tables.Length, onDropping);
            Assert.Equal(this.Tables.Length, onDropped);

            HelperDatabase.DropDatabase(ProviderType.Sql, dbName);
        }