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session_test.go
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session_test.go
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package tds
import (
"context"
"database/sql"
"database/sql/driver"
"reflect"
"testing"
)
func TestSimpleExec(t *testing.T) {
db := getConn(t)
if db == nil {
return
}
defer db.Close()
res, err := db.simpleExec(context.Background(), "set textsize 5000")
if err != nil {
t.Error("Conn.simpleExec failed:", err.Error())
return
}
if cnt, _ := res.RowsAffected(); cnt != 0 {
t.Errorf("Conn.simpleExec: Result.RowsAffected: exepected 0 rows affected, got %d", cnt)
return
}
}
func TestSingleValue(t *testing.T) {
db := getConn(t)
if db == nil {
return
}
defer db.Close()
res, err := db.SelectValue(context.Background(), "select 1")
if err != nil {
t.Error("Conn.selectValue failed:", err.Error())
return
}
intVal, ok := res.(int64)
if !ok {
t.Errorf("Conn.selectValue, expected int, got %s", reflect.TypeOf(res))
return
}
if intVal != 1 {
t.Errorf("Conn.selectValue, expected 1, got %d", intVal)
return
}
}
func TestTransactions(t *testing.T) {
db := getConn(t)
if db == nil {
return
}
defer db.Close()
tx, err := db.Begin()
if err != nil {
t.Error("Conn.Begin failed:", err.Error())
return
}
res, err := db.SelectValue(context.Background(), "select @@trancount")
if err != nil {
t.Error("Conn.Begin: Conn.selectValue failed:", err.Error())
return
}
intVal, ok := res.(int64)
if !ok {
t.Errorf("Conn.Begin: Conn.selectValue, expected int, got %s", reflect.TypeOf(res))
return
}
if intVal != 1 {
t.Errorf("Conn.Begin: Conn.selectValue, expected 1, got %d", intVal)
return
}
tx.Rollback()
res, err = db.SelectValue(context.Background(), "select @@trancount")
if err != nil {
t.Error("Conn.Rollback: Conn.selectValue failed:", err.Error())
return
}
intVal, ok = res.(int64)
if !ok {
t.Errorf("Conn.Rollback: Conn.selectValue, expected int, got %s", reflect.TypeOf(res))
return
}
if intVal != 0 {
t.Errorf("Conn.Rollback: Conn.selectValue, expected 0, got %d", intVal)
return
}
tx, err = db.Begin()
if err != nil {
t.Error("Conn.Begin failed:", err.Error())
return
}
res, err = db.SelectValue(context.Background(), "select @@trancount -- begin")
if err != nil {
t.Error("Conn.Begin: Conn.selectValue failed:", err.Error())
return
}
intVal, ok = res.(int64)
if !ok {
t.Errorf("Conn.Begin: Conn.selectValue, expected int, got %s", reflect.TypeOf(res))
return
}
if intVal != 1 {
t.Errorf("Conn.Begin: Conn.selectValue, expected 1, got %d", intVal)
return
}
tx.Rollback()
res, err = db.SelectValue(context.Background(), "select @@trancount -- rollback")
if err != nil {
t.Error("Conn.Rollback: Conn.selectValue failed:", err.Error())
return
}
intVal, ok = res.(int64)
if !ok {
t.Errorf("Conn.Rollback: Conn.selectValue, expected int, got %s", reflect.TypeOf(res))
return
}
if intVal != 0 {
t.Errorf("Conn.Rollback: Conn.selectValue, expected 0, got %d", intVal)
return
}
}
type isolationTest struct {
input *sql.TxOptions
err error
output int
}
var isolationTests = []isolationTest{
{input: &sql.TxOptions{ReadOnly: true, Isolation: sql.LevelDefault}, err: ErrNoReadOnly},
{input: &sql.TxOptions{ReadOnly: false, Isolation: sql.LevelReadUncommitted}, err: nil, output: 0},
{input: &sql.TxOptions{ReadOnly: false, Isolation: sql.LevelReadCommitted}, err: nil, output: 1},
{input: &sql.TxOptions{ReadOnly: false, Isolation: sql.LevelRepeatableRead}, err: nil, output: 2},
{input: &sql.TxOptions{ReadOnly: false, Isolation: sql.LevelSerializable}, err: nil, output: 3},
{input: &sql.TxOptions{ReadOnly: false, Isolation: sql.LevelSnapshot}, err: ErrInvalidIsolationLevel},
{input: &sql.TxOptions{ReadOnly: false, Isolation: sql.LevelLinearizable}, err: ErrInvalidIsolationLevel},
}
// test all the transaction levels
func TestIsolationLevels(t *testing.T) {
db := connect(t)
if db == nil {
return
}
defer db.Close()
for _, value := range isolationTests {
tx, err := db.BeginTx(context.Background(), value.input)
if err != value.err {
t.Fatal(err)
}
if value.err != nil {
continue
}
var isolation int
//err = tx.QueryRow("select @@isolation").Scan(&isolation)
err = tx.QueryRow("select @@isolation").Scan(&isolation)
if err != nil {
t.Fatal(err)
}
if value.output != isolation {
t.Errorf("wrong isolation level: %d != %d", isolation, value.output)
}
var trancount int
//err = tx.QueryRow("select @@isolation").Scan(&isolation)
err = tx.QueryRow("select @@trancount").Scan(&trancount)
if err != nil {
t.Fatal(err)
}
if trancount != 1 {
t.Error("Expected @@trancount set to 1")
}
tx.Rollback()
}
}
func TestBeginTranError(t *testing.T) {
conn := getConn(t)
if conn == nil {
t.Fatal("connect failed")
}
defer conn.Close()
// close actual connection to make begin transaction to fail during sending of a packet
conn.c.Close()
ctx := context.Background()
opts := driver.TxOptions{Isolation: driver.IsolationLevel(sql.LevelSerializable)}
_, err := conn.BeginTx(ctx, opts)
if err == nil || conn.valid {
t.Errorf("begin should fail as a bad connection, err=%v", err)
}
}
func TestCommitTranError(t *testing.T) {
conn := getConn(t)
if conn == nil {
t.Fatal("connect failed")
}
defer conn.Close()
// close actual connection to make begin transaction to fail during sending of a packet
conn.c.Close()
err := conn.Commit()
if err == nil || conn.valid {
t.Errorf("begin should fail as a bad connection, err=%v", err)
}
}
func TestRollbackTranError(t *testing.T) {
conn := getConn(t)
if conn == nil {
t.Fatal("connect failed")
}
defer conn.Close()
// close actual connection to make begin transaction to fail during sending of a packet
conn.c.Close()
err := conn.Rollback()
if err == nil || conn.valid {
t.Errorf("begin should fail as a bad connection, err=%v", err)
}
}
func TestBeginTxtReadOnlyNotSupported(t *testing.T) {
conn := connect(t)
if conn == nil {
t.Fatal("connect failed")
}
defer conn.Close()
opts := &sql.TxOptions{ReadOnly: true}
_, err := conn.BeginTx(context.Background(), opts)
if err == nil {
t.Error("BeginTx expected to fail for read only transaction because sybase doesn't support it, but it succeeded")
}
}
func TestConn_BeginTx(t *testing.T) {
conn := connect(t)
defer conn.Close()
conn.Exec("drop table test")
_, err := conn.Exec("create table test (f int)")
if err != nil {
t.Fatal("create table failed with error", err)
}
defer conn.Exec("drop table test")
tx1, err := conn.BeginTx(context.Background(), nil)
if err != nil {
t.Fatal("BeginTx failed with error", err)
}
tx2, err := conn.BeginTx(context.Background(), nil)
if err != nil {
t.Fatal("BeginTx failed with error", err)
}
_, err = tx1.Exec("insert into test (f) values (1)")
if err != nil {
t.Fatal("insert failed with error", err)
}
tx1.Rollback()
_, err = tx2.Exec("insert into test (f) values (2)")
if err != nil {
t.Fatal("insert failed with error", err)
}
tx2.Commit()
rows, err := conn.Query("select f from test")
if err != nil {
t.Fatal("select failed with error", err)
}
values := []int64{}
for rows.Next() {
var val int64
err = rows.Scan(&val)
if err != nil {
t.Fatal("scan failed with error", err)
}
values = append(values, val)
}
if !reflect.DeepEqual(values, []int64{2}) {
t.Errorf("Values is expected to be [1] but it is %v", values)
}
}
func TestPinger(t *testing.T) {
conn := connect(t)
defer conn.Close()
err := conn.Ping()
if err != nil {
t.Errorf("Failed to hit database")
}
}