95d96fa939
Upstream merge Add Session wrapper With this patch we can now use gocqlx like: ``` session.Query(`SELECT * FROM struct_table`, nil).Get(&v) ``` instead of (old format): ``` gocqlx.Query(session.Query(`SELECT * FROM struct_table`), nil).Get(&v) ``` Signed-off-by: Michał Matczuk <michal@scylladb.com>
103 lines
2.8 KiB
Go
103 lines
2.8 KiB
Go
// Copyright (C) 2017 ScyllaDB
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// Use of this source code is governed by a ALv2-style
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// license that can be found in the LICENSE file.
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package gocqlxtest
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import (
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"flag"
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"fmt"
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"strings"
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"sync"
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"testing"
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"time"
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"github.com/gocql/gocql"
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"github.com/scylladb/gocqlx"
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)
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var (
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flagCluster = flag.String("cluster", "127.0.0.1", "a comma-separated list of host:port tuples")
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flagProto = flag.Int("proto", 0, "protcol version")
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flagCQL = flag.String("cql", "3.0.0", "CQL version")
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flagRF = flag.Int("rf", 1, "replication factor for test keyspace")
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flagRetry = flag.Int("retries", 5, "number of times to retry queries")
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flagCompressTest = flag.String("compressor", "", "compressor to use")
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flagTimeout = flag.Duration("gocql.timeout", 5*time.Second, "sets the connection `timeout` for all operations")
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)
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var initOnce sync.Once
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// CreateSession creates a new gocql session from flags.
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func CreateSession(tb testing.TB) gocqlx.Session {
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cluster := createCluster()
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return createSessionFromCluster(cluster, tb)
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}
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func createCluster() *gocql.ClusterConfig {
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if !flag.Parsed() {
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flag.Parse()
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}
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clusterHosts := strings.Split(*flagCluster, ",")
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cluster := gocql.NewCluster(clusterHosts...)
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cluster.ProtoVersion = *flagProto
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cluster.CQLVersion = *flagCQL
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cluster.Timeout = *flagTimeout
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cluster.Consistency = gocql.Quorum
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cluster.MaxWaitSchemaAgreement = 2 * time.Minute // travis might be slow
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if *flagRetry > 0 {
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cluster.RetryPolicy = &gocql.SimpleRetryPolicy{NumRetries: *flagRetry}
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}
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switch *flagCompressTest {
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case "snappy":
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cluster.Compressor = &gocql.SnappyCompressor{}
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case "":
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default:
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panic("invalid compressor: " + *flagCompressTest)
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}
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return cluster
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}
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func createSessionFromCluster(cluster *gocql.ClusterConfig, tb testing.TB) gocqlx.Session {
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// Drop and re-create the keyspace once. Different tests should use their own
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// individual tables, but can assume that the table does not exist before.
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initOnce.Do(func() {
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createKeyspace(tb, cluster, "gocqlx_test")
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})
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cluster.Keyspace = "gocqlx_test"
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session, err := gocqlx.WrapSession(cluster.CreateSession())
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if err != nil {
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tb.Fatal("CreateSession:", err)
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}
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return session
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}
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func createKeyspace(tb testing.TB, cluster *gocql.ClusterConfig, keyspace string) {
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c := *cluster
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c.Keyspace = "system"
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c.Timeout = 30 * time.Second
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session, err := gocqlx.WrapSession(c.CreateSession())
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if err != nil {
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tb.Fatal(err)
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}
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defer session.Close()
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err = session.ExecStmt(`DROP KEYSPACE IF EXISTS ` + keyspace)
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if err != nil {
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tb.Fatalf("unable to drop keyspace: %v", err)
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}
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err = session.ExecStmt(fmt.Sprintf(`CREATE KEYSPACE %s
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WITH replication = {
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'class' : 'SimpleStrategy',
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'replication_factor' : %d
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}`, keyspace, *flagRF))
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if err != nil {
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tb.Fatalf("unable to create keyspace: %v", err)
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}
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}
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