func checkApplyCreateNonExistsTableDoesNotPanic(c *C, txn kv.Transaction, builder *infoschema.Builder, dbID int64) {
m := meta.NewMeta(txn)
err := builder.ApplyDiff(m, &model.SchemaDiff{Type: model.ActionCreateTable, SchemaID: dbID, TableID: 999})
c.Assert(infoschema.ErrTableNotExists.Equal(err), IsTrue)
}
func checkApplyCreateNonExistsSchemaDoesNotPanic(c *C, txn kv.Transaction, builder *infoschema.Builder) {
m := meta.NewMeta(txn)
err := builder.ApplyDiff(m, &model.SchemaDiff{Type: model.ActionCreateSchema, SchemaID: 999})
c.Assert(infoschema.ErrDatabaseNotExists.Equal(err), IsTrue)
}