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metric_util_test.go
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metric_util_test.go
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// Copyright 2016 The Cockroach Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
// implied. See the License for the specific language governing
// permissions and limitations under the License.
// Functions used for testing metrics.
package sql_test
import (
"github.com/cockroachdb/cockroach/pkg/sql"
"github.com/cockroachdb/cockroach/pkg/testutils/serverutils"
"github.com/cockroachdb/cockroach/pkg/util/metric"
"github.com/pkg/errors"
)
// initializeQueryCounter returns a queryCounter that accounts for system
// migrations that may have run DDL statements.
func initializeQueryCounter(s serverutils.TestServerInterface) queryCounter {
return queryCounter{
txnBeginCount: s.MustGetSQLCounter(sql.MetaTxnBegin.Name),
selectCount: s.MustGetSQLCounter(sql.MetaSelect.Name),
optCount: s.MustGetSQLCounter(sql.MetaSQLOpt.Name),
distSQLSelectCount: s.MustGetSQLCounter(sql.MetaDistSQLSelect.Name),
updateCount: s.MustGetSQLCounter(sql.MetaUpdate.Name),
insertCount: s.MustGetSQLCounter(sql.MetaInsert.Name),
deleteCount: s.MustGetSQLCounter(sql.MetaDelete.Name),
ddlCount: s.MustGetSQLCounter(sql.MetaDdl.Name),
miscCount: s.MustGetSQLCounter(sql.MetaMisc.Name),
txnCommitCount: s.MustGetSQLCounter(sql.MetaTxnCommit.Name),
txnRollbackCount: s.MustGetSQLCounter(sql.MetaTxnRollback.Name),
txnAbortCount: s.MustGetSQLCounter(sql.MetaTxnAbort.Name),
}
}
func checkCounterDelta(
s serverutils.TestServerInterface, meta metric.Metadata, init, delta int64,
) (int64, error) {
actual := s.MustGetSQLCounter(meta.Name)
if actual != (init + delta) {
return actual, errors.Errorf("query %s: actual %d != (init %d + delta %d)",
meta.Name, actual, init, delta)
}
return actual, nil
}
func checkCounterGE(s serverutils.TestServerInterface, meta metric.Metadata, e int64) error {
if a := s.MustGetSQLCounter(meta.Name); a < e {
return errors.Errorf("stat %s: expected: actual %d >= %d",
meta.Name, a, e)
}
return nil
}