storj/private/dbutil/cockroachutil/openunique_test.go
Egon Elbre 85c45cd56f private/dbutil/pgtest: support multiple databases for testing
Currently Cockroach isn't performant for concurrent database setup and
tear-down. Instead of a single instance allow setting multiple potential
connection strings and let the tests pick one connection string
randomly.

This improves test duration by ~10 minutes.

While we are at significantly changing how pgtest works, introduce
helper PickPostgres and PickCockroach for selecting the database to
reduce code duplications in multiple places.

Change-Id: I8ad171d5c4c8a4fc081ec2ae9bdd0cc948a80619
2020-04-28 21:55:49 +03:00

75 lines
2.5 KiB
Go

// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.
package cockroachutil_test
import (
"strings"
"testing"
"github.com/stretchr/testify/require"
"storj.io/common/testcontext"
"storj.io/storj/private/dbutil"
"storj.io/storj/private/dbutil/cockroachutil"
"storj.io/storj/private/dbutil/pgtest"
"storj.io/storj/private/dbutil/tempdb"
"storj.io/storj/private/tagsql"
)
func TestTempCockroachDB(t *testing.T) {
connstr := pgtest.PickCockroach(t)
ctx := testcontext.New(t)
defer ctx.Cleanup()
prefix := "name#spaced/Test/DB"
testDB, err := tempdb.OpenUnique(ctx, connstr, prefix)
require.NoError(t, err)
require.Equal(t, "cockroach", testDB.Driver)
require.Equal(t, dbutil.Cockroach, testDB.Implementation)
require.IsType(t, &cockroachutil.Driver{}, testDB.DB.Driver())
// save these so we can close testDB down below and then still try connecting to the same place
// (without requiring that the values stay intact in the testDB struct when we close it)
driverCopy := testDB.Driver
connStrCopy := testDB.ConnStr
// assert new test db exists and can be connected to again
otherConn, err := tagsql.Open(driverCopy, connStrCopy)
require.NoError(t, err)
defer ctx.Check(otherConn.Close)
// verify the name matches expectation
var dbName string
row := otherConn.QueryRowContext(ctx, `SELECT current_database()`)
err = row.Scan(&dbName)
require.NoError(t, err)
require.Truef(t, strings.HasPrefix(dbName, prefix), "Expected prefix of %q for current db name, but found %q", prefix, dbName)
// verify there is a db with such a name
var count int
row = otherConn.QueryRowContext(ctx, `SELECT COUNT(*) FROM pg_database WHERE datname = current_database()`)
err = row.Scan(&count)
require.NoError(t, err)
require.Equalf(t, 1, count, "Expected 1 DB with matching name, but counted %d", count)
// close testDB
err = testDB.Close()
require.NoError(t, err)
// make a new connection back to the master connstr just to check that the our temp db
// really was dropped
plainDBConn, err := tagsql.Open("cockroach", connstr)
require.NoError(t, err)
defer ctx.Check(plainDBConn.Close)
// assert new test db was deleted (we expect this connection to keep working, even though its
// database was deleted out from under it!)
row = plainDBConn.QueryRowContext(ctx, `SELECT COUNT(*) FROM pg_database WHERE datname = $1`, dbName)
err = row.Scan(&count)
require.NoError(t, err)
require.Equalf(t, 0, count, "Expected 0 DB with matching name, but counted %d (deletion failure?)", count)
}