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load.go
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load.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.
package acceptance
import (
"fmt"
"testing"
"time"
"golang.org/x/net/context"
"github.com/cockroachdb/cockroach/util/log"
"github.com/cockroachdb/cockroach/util/timeutil"
)
// insertLoad add a very basic load that inserts into a unique table and checks
// that the inserted values are indeed correct.
func insertLoad(t *testing.T, dc *dynamicClient, ID int) {
// Initialize the db.
if _, err := dc.exec(`CREATE DATABASE IF NOT EXISTS Insert`); err != nil {
t.Fatal(err)
}
tableName := fmt.Sprintf("Insert.Table%d", ID)
createTableStatement := fmt.Sprintf(`
CREATE TABLE %s (
key INT PRIMARY KEY,
value INT NOT NULL
)`, tableName)
insertStatement := fmt.Sprintf(`INSERT INTO %s (key, value) VALUES ($1, $1)`, tableName)
selectStatement := fmt.Sprintf(`SELECT key-value AS "total" FROM %s WHERE key = $1`, tableName)
// Init the db for the basic insert.
if _, err := dc.exec(createTableStatement); err != nil {
t.Fatal(err)
}
var valueCheck, valueInsert int
nextUpdate := timeutil.Now()
// Perform inserts and selects
for dc.isRunning() {
// Insert some values.
valueInsert++
if _, err := dc.exec(insertStatement, valueInsert); err != nil {
if err == errTestFinished {
return
}
t.Fatal(err)
}
// Check that another value is still correct.
valueCheck--
if valueCheck < 1 {
valueCheck = valueInsert
}
var total int
if err := dc.queryRowScan(selectStatement, []interface{}{valueCheck}, []interface{}{&total}); err != nil {
if err == errTestFinished {
return
}
t.Fatal(err)
}
if total != 0 {
t.Fatalf("total expected to be 0, is %d", total)
}
if timeutil.Now().After(nextUpdate) {
log.Infof(context.TODO(), "Insert %d: inserted and checked %d values", ID, valueInsert)
nextUpdate = timeutil.Now().Add(time.Second)
}
}
}