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// Copyright (C) 2014 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package sqlite3
import (
"bytes"
"database/sql"
"database/sql/driver"
"errors"
"fmt"
"io/ioutil"
"math/rand"
"net/url"
"os"
"reflect"
"regexp"
"strconv"
"strings"
"sync"
"testing"
"time"
)
func TempFilename(t *testing.T) string {
f, err := ioutil.TempFile("", "go-sqlite3-test-")
if err != nil {
t.Fatal(err)
}
f.Close()
return f.Name()
}
func doTestOpen(t *testing.T, option string) (string, error) {
var url string
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
if option != "" {
url = tempFilename + option
} else {
url = tempFilename
}
db, err := sql.Open("sqlite3", url)
if err != nil {
return "Failed to open database:", err
}
defer os.Remove(tempFilename)
defer db.Close()
_, err = db.Exec("drop table foo")
_, err = db.Exec("create table foo (id integer)")
if err != nil {
return "Failed to create table:", err
}
if stat, err := os.Stat(tempFilename); err != nil || stat.IsDir() {
return "Failed to create ./foo.db", nil
}
return "", nil
}
func TestOpen(t *testing.T) {
cases := map[string]bool{
"": true,
"?_txlock=immediate": true,
"?_txlock=deferred": true,
"?_txlock=exclusive": true,
"?_txlock=bogus": false,
}
for option, expectedPass := range cases {
result, err := doTestOpen(t, option)
if result == "" {
if !expectedPass {
errmsg := fmt.Sprintf("_txlock error not caught at dbOpen with option: %s", option)
t.Fatal(errmsg)
}
} else if expectedPass {
if err == nil {
t.Fatal(result)
} else {
t.Fatal(result, err)
}
}
}
}
func TestReadonly(t *testing.T) {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db1, err := sql.Open("sqlite3", "file:"+tempFilename)
if err != nil {
t.Fatal(err)
}
db1.Exec("CREATE TABLE test (x int, y float)")
db2, err := sql.Open("sqlite3", "file:"+tempFilename+"?mode=ro")
if err != nil {
t.Fatal(err)
}
_ = db2
_, err = db2.Exec("INSERT INTO test VALUES (1, 3.14)")
if err == nil {
t.Fatal("didn't expect INSERT into read-only database to work")
}
}
func TestForeignKeys(t *testing.T) {
cases := map[string]bool{
"?_foreign_keys=1": true,
"?_foreign_keys=0": false,
}
for option, want := range cases {
fname := TempFilename(t)
uri := "file:" + fname + option
db, err := sql.Open("sqlite3", uri)
if err != nil {
os.Remove(fname)
t.Errorf("sql.Open(\"sqlite3\", %q): %v", uri, err)
continue
}
var enabled bool
err = db.QueryRow("PRAGMA foreign_keys;").Scan(&enabled)
db.Close()
os.Remove(fname)
if err != nil {
t.Errorf("query foreign_keys for %s: %v", uri, err)
continue
}
if enabled != want {
t.Errorf("\"PRAGMA foreign_keys;\" for %q = %t; want %t", uri, enabled, want)
continue
}
}
}
func TestRecursiveTriggers(t *testing.T) {
cases := map[string]bool{
"?_recursive_triggers=1": true,
"?_recursive_triggers=0": false,
}
for option, want := range cases {
fname := TempFilename(t)
uri := "file:" + fname + option
db, err := sql.Open("sqlite3", uri)
if err != nil {
os.Remove(fname)
t.Errorf("sql.Open(\"sqlite3\", %q): %v", uri, err)
continue
}
var enabled bool
err = db.QueryRow("PRAGMA recursive_triggers;").Scan(&enabled)
db.Close()
os.Remove(fname)
if err != nil {
t.Errorf("query recursive_triggers for %s: %v", uri, err)
continue
}
if enabled != want {
t.Errorf("\"PRAGMA recursive_triggers;\" for %q = %t; want %t", uri, enabled, want)
continue
}
}
}
func TestClose(t *testing.T) {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
_, err = db.Exec("drop table foo")
_, err = db.Exec("create table foo (id integer)")
if err != nil {
t.Fatal("Failed to create table:", err)
}
stmt, err := db.Prepare("select id from foo where id = ?")
if err != nil {
t.Fatal("Failed to select records:", err)
}
db.Close()
_, err = stmt.Exec(1)
if err == nil {
t.Fatal("Failed to operate closed statement")
}
}
func TestInsert(t *testing.T) {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
_, err = db.Exec("drop table foo")
_, err = db.Exec("create table foo (id integer)")
if err != nil {
t.Fatal("Failed to create table:", err)
}
res, err := db.Exec("insert into foo(id) values(123)")
if err != nil {
t.Fatal("Failed to insert record:", err)
}
affected, _ := res.RowsAffected()
if affected != 1 {
t.Fatalf("Expected %d for affected rows, but %d:", 1, affected)
}
rows, err := db.Query("select id from foo")
if err != nil {
t.Fatal("Failed to select records:", err)
}
defer rows.Close()
rows.Next()
var result int
rows.Scan(&result)
if result != 123 {
t.Errorf("Expected %d for fetched result, but %d:", 123, result)
}
}
func TestUpdate(t *testing.T) {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
_, err = db.Exec("drop table foo")
_, err = db.Exec("create table foo (id integer)")
if err != nil {
t.Fatal("Failed to create table:", err)
}
res, err := db.Exec("insert into foo(id) values(123)")
if err != nil {
t.Fatal("Failed to insert record:", err)
}
expected, err := res.LastInsertId()
if err != nil {
t.Fatal("Failed to get LastInsertId:", err)
}
affected, _ := res.RowsAffected()
if err != nil {
t.Fatal("Failed to get RowsAffected:", err)
}
if affected != 1 {
t.Fatalf("Expected %d for affected rows, but %d:", 1, affected)
}
res, err = db.Exec("update foo set id = 234")
if err != nil {
t.Fatal("Failed to update record:", err)
}
lastID, err := res.LastInsertId()
if err != nil {
t.Fatal("Failed to get LastInsertId:", err)
}
if expected != lastID {
t.Errorf("Expected %q for last Id, but %q:", expected, lastID)
}
affected, _ = res.RowsAffected()
if err != nil {
t.Fatal("Failed to get RowsAffected:", err)
}
if affected != 1 {
t.Fatalf("Expected %d for affected rows, but %d:", 1, affected)
}
rows, err := db.Query("select id from foo")
if err != nil {
t.Fatal("Failed to select records:", err)
}
defer rows.Close()
rows.Next()
var result int
rows.Scan(&result)
if result != 234 {
t.Errorf("Expected %d for fetched result, but %d:", 234, result)
}
}
func TestDelete(t *testing.T) {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
_, err = db.Exec("drop table foo")
_, err = db.Exec("create table foo (id integer)")
if err != nil {
t.Fatal("Failed to create table:", err)
}
res, err := db.Exec("insert into foo(id) values(123)")
if err != nil {
t.Fatal("Failed to insert record:", err)
}
expected, err := res.LastInsertId()
if err != nil {
t.Fatal("Failed to get LastInsertId:", err)
}
affected, err := res.RowsAffected()
if err != nil {
t.Fatal("Failed to get RowsAffected:", err)
}
if affected != 1 {
t.Errorf("Expected %d for cout of affected rows, but %q:", 1, affected)
}
res, err = db.Exec("delete from foo where id = 123")
if err != nil {
t.Fatal("Failed to delete record:", err)
}
lastID, err := res.LastInsertId()
if err != nil {
t.Fatal("Failed to get LastInsertId:", err)
}
if expected != lastID {
t.Errorf("Expected %q for last Id, but %q:", expected, lastID)
}
affected, err = res.RowsAffected()
if err != nil {
t.Fatal("Failed to get RowsAffected:", err)
}
if affected != 1 {
t.Errorf("Expected %d for cout of affected rows, but %q:", 1, affected)
}
rows, err := db.Query("select id from foo")
if err != nil {
t.Fatal("Failed to select records:", err)
}
defer rows.Close()
if rows.Next() {
t.Error("Fetched row but expected not rows")
}
}
func TestBooleanRoundtrip(t *testing.T) {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
_, err = db.Exec("DROP TABLE foo")
_, err = db.Exec("CREATE TABLE foo(id INTEGER, value BOOL)")
if err != nil {
t.Fatal("Failed to create table:", err)
}
_, err = db.Exec("INSERT INTO foo(id, value) VALUES(1, ?)", true)
if err != nil {
t.Fatal("Failed to insert true value:", err)
}
_, err = db.Exec("INSERT INTO foo(id, value) VALUES(2, ?)", false)
if err != nil {
t.Fatal("Failed to insert false value:", err)
}
rows, err := db.Query("SELECT id, value FROM foo")
if err != nil {
t.Fatal("Unable to query foo table:", err)
}
defer rows.Close()
for rows.Next() {
var id int
var value bool
if err := rows.Scan(&id, &value); err != nil {
t.Error("Unable to scan results:", err)
continue
}
if id == 1 && !value {
t.Error("Value for id 1 should be true, not false")
} else if id == 2 && value {
t.Error("Value for id 2 should be false, not true")
}
}
}
func timezone(t time.Time) string { return t.Format("-07:00") }
func TestTimestamp(t *testing.T) {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
_, err = db.Exec("DROP TABLE foo")
_, err = db.Exec("CREATE TABLE foo(id INTEGER, ts timeSTAMP, dt DATETIME)")
if err != nil {
t.Fatal("Failed to create table:", err)
}
timestamp1 := time.Date(2012, time.April, 6, 22, 50, 0, 0, time.UTC)
timestamp2 := time.Date(2006, time.January, 2, 15, 4, 5, 123456789, time.UTC)
timestamp3 := time.Date(2012, time.November, 4, 0, 0, 0, 0, time.UTC)
tzTest := time.FixedZone("TEST", -9*3600-13*60)
tests := []struct {
value interface{}
expected time.Time
}{
{"nonsense", time.Time{}},
{"0000-00-00 00:00:00", time.Time{}},
{time.Time{}.Unix(), time.Time{}},
{timestamp1, timestamp1},
{timestamp2.Unix(), timestamp2.Truncate(time.Second)},
{timestamp2.UnixNano() / int64(time.Millisecond), timestamp2.Truncate(time.Millisecond)},
{timestamp1.In(tzTest), timestamp1.In(tzTest)},
{timestamp1.Format("2006-01-02 15:04:05.000"), timestamp1},
{timestamp1.Format("2006-01-02T15:04:05.000"), timestamp1},
{timestamp1.Format("2006-01-02 15:04:05"), timestamp1},
{timestamp1.Format("2006-01-02T15:04:05"), timestamp1},
{timestamp2, timestamp2},
{"2006-01-02 15:04:05.123456789", timestamp2},
{"2006-01-02T15:04:05.123456789", timestamp2},
{"2006-01-02T05:51:05.123456789-09:13", timestamp2.In(tzTest)},
{"2012-11-04", timestamp3},
{"2012-11-04 00:00", timestamp3},
{"2012-11-04 00:00:00", timestamp3},
{"2012-11-04 00:00:00.000", timestamp3},
{"2012-11-04T00:00", timestamp3},
{"2012-11-04T00:00:00", timestamp3},
{"2012-11-04T00:00:00.000", timestamp3},
{"2006-01-02T15:04:05.123456789Z", timestamp2},
{"2012-11-04Z", timestamp3},
{"2012-11-04 00:00Z", timestamp3},
{"2012-11-04 00:00:00Z", timestamp3},
{"2012-11-04 00:00:00.000Z", timestamp3},
{"2012-11-04T00:00Z", timestamp3},
{"2012-11-04T00:00:00Z", timestamp3},
{"2012-11-04T00:00:00.000Z", timestamp3},
}
for i := range tests {
_, err = db.Exec("INSERT INTO foo(id, ts, dt) VALUES(?, ?, ?)", i, tests[i].value, tests[i].value)
if err != nil {
t.Fatal("Failed to insert timestamp:", err)
}
}
rows, err := db.Query("SELECT id, ts, dt FROM foo ORDER BY id ASC")
if err != nil {
t.Fatal("Unable to query foo table:", err)
}
defer rows.Close()
seen := 0
for rows.Next() {
var id int
var ts, dt time.Time
if err := rows.Scan(&id, &ts, &dt); err != nil {
t.Error("Unable to scan results:", err)
continue
}
if id < 0 || id >= len(tests) {
t.Error("Bad row id: ", id)
continue
}
seen++
if !tests[id].expected.Equal(ts) {
t.Errorf("Timestamp value for id %v (%v) should be %v, not %v", id, tests[id].value, tests[id].expected, dt)
}
if !tests[id].expected.Equal(dt) {
t.Errorf("Datetime value for id %v (%v) should be %v, not %v", id, tests[id].value, tests[id].expected, dt)
}
if timezone(tests[id].expected) != timezone(ts) {
t.Errorf("Timezone for id %v (%v) should be %v, not %v", id, tests[id].value,
timezone(tests[id].expected), timezone(ts))
}
if timezone(tests[id].expected) != timezone(dt) {
t.Errorf("Timezone for id %v (%v) should be %v, not %v", id, tests[id].value,
timezone(tests[id].expected), timezone(dt))
}
}
if seen != len(tests) {
t.Errorf("Expected to see %d rows", len(tests))
}
}
func TestBoolean(t *testing.T) {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
_, err = db.Exec("CREATE TABLE foo(id INTEGER, fbool BOOLEAN)")
if err != nil {
t.Fatal("Failed to create table:", err)
}
bool1 := true
_, err = db.Exec("INSERT INTO foo(id, fbool) VALUES(1, ?)", bool1)
if err != nil {
t.Fatal("Failed to insert boolean:", err)
}
bool2 := false
_, err = db.Exec("INSERT INTO foo(id, fbool) VALUES(2, ?)", bool2)
if err != nil {
t.Fatal("Failed to insert boolean:", err)
}
bool3 := "nonsense"
_, err = db.Exec("INSERT INTO foo(id, fbool) VALUES(3, ?)", bool3)
if err != nil {
t.Fatal("Failed to insert nonsense:", err)
}
rows, err := db.Query("SELECT id, fbool FROM foo where fbool = ?", bool1)
if err != nil {
t.Fatal("Unable to query foo table:", err)
}
counter := 0
var id int
var fbool bool
for rows.Next() {
if err := rows.Scan(&id, &fbool); err != nil {
t.Fatal("Unable to scan results:", err)
}
counter++
}
if counter != 1 {
t.Fatalf("Expected 1 row but %v", counter)
}
if id != 1 && fbool != true {
t.Fatalf("Value for id 1 should be %v, not %v", bool1, fbool)
}
rows, err = db.Query("SELECT id, fbool FROM foo where fbool = ?", bool2)
if err != nil {
t.Fatal("Unable to query foo table:", err)
}
counter = 0
for rows.Next() {
if err := rows.Scan(&id, &fbool); err != nil {
t.Fatal("Unable to scan results:", err)
}
counter++
}
if counter != 1 {
t.Fatalf("Expected 1 row but %v", counter)
}
if id != 2 && fbool != false {
t.Fatalf("Value for id 2 should be %v, not %v", bool2, fbool)
}
// make sure "nonsense" triggered an error
rows, err = db.Query("SELECT id, fbool FROM foo where id=?;", 3)
if err != nil {
t.Fatal("Unable to query foo table:", err)
}
rows.Next()
err = rows.Scan(&id, &fbool)
if err == nil {
t.Error("Expected error from \"nonsense\" bool")
}
}
func TestFloat32(t *testing.T) {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
_, err = db.Exec("CREATE TABLE foo(id INTEGER)")
if err != nil {
t.Fatal("Failed to create table:", err)
}
_, err = db.Exec("INSERT INTO foo(id) VALUES(null)")
if err != nil {
t.Fatal("Failed to insert null:", err)
}
rows, err := db.Query("SELECT id FROM foo")
if err != nil {
t.Fatal("Unable to query foo table:", err)
}
if !rows.Next() {
t.Fatal("Unable to query results:", err)
}
var id interface{}
if err := rows.Scan(&id); err != nil {
t.Fatal("Unable to scan results:", err)
}
if id != nil {
t.Error("Expected nil but not")
}
}
func TestNull(t *testing.T) {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
rows, err := db.Query("SELECT 3.141592")
if err != nil {
t.Fatal("Unable to query foo table:", err)
}
if !rows.Next() {
t.Fatal("Unable to query results:", err)
}
var v interface{}
if err := rows.Scan(&v); err != nil {
t.Fatal("Unable to scan results:", err)
}
f, ok := v.(float64)
if !ok {
t.Error("Expected float but not")
}
if f != 3.141592 {
t.Error("Expected 3.141592 but not")
}
}
func TestTransaction(t *testing.T) {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
_, err = db.Exec("CREATE TABLE foo(id INTEGER)")
if err != nil {
t.Fatal("Failed to create table:", err)
}
tx, err := db.Begin()
if err != nil {
t.Fatal("Failed to begin transaction:", err)
}
_, err = tx.Exec("INSERT INTO foo(id) VALUES(1)")
if err != nil {
t.Fatal("Failed to insert null:", err)
}
rows, err := tx.Query("SELECT id from foo")
if err != nil {
t.Fatal("Unable to query foo table:", err)
}
err = tx.Rollback()
if err != nil {
t.Fatal("Failed to rollback transaction:", err)
}
if rows.Next() {
t.Fatal("Unable to query results:", err)
}
tx, err = db.Begin()
if err != nil {
t.Fatal("Failed to begin transaction:", err)
}
_, err = tx.Exec("INSERT INTO foo(id) VALUES(1)")
if err != nil {
t.Fatal("Failed to insert null:", err)
}
err = tx.Commit()
if err != nil {
t.Fatal("Failed to commit transaction:", err)
}
rows, err = tx.Query("SELECT id from foo")
if err == nil {
t.Fatal("Expected failure to query")
}
}
func TestWAL(t *testing.T) {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
if _, err = db.Exec("PRAGMA journal_mode=WAL;"); err != nil {
t.Fatal("Failed to Exec PRAGMA journal_mode:", err)
}
if _, err = db.Exec("PRAGMA locking_mode=EXCLUSIVE;"); err != nil {
t.Fatal("Failed to Exec PRAGMA locking_mode:", err)
}
if _, err = db.Exec("CREATE TABLE test (id SERIAL, user TEXT NOT NULL, name TEXT NOT NULL);"); err != nil {
t.Fatal("Failed to Exec CREATE TABLE:", err)
}
if _, err = db.Exec("INSERT INTO test (user, name) VALUES ('user','name');"); err != nil {
t.Fatal("Failed to Exec INSERT:", err)
}
trans, err := db.Begin()
if err != nil {
t.Fatal("Failed to Begin:", err)
}
s, err := trans.Prepare("INSERT INTO test (user, name) VALUES (?, ?);")
if err != nil {
t.Fatal("Failed to Prepare:", err)
}
var count int
if err = trans.QueryRow("SELECT count(user) FROM test;").Scan(&count); err != nil {
t.Fatal("Failed to QueryRow:", err)
}
if _, err = s.Exec("bbbb", "aaaa"); err != nil {
t.Fatal("Failed to Exec prepared statement:", err)
}
if err = s.Close(); err != nil {
t.Fatal("Failed to Close prepared statement:", err)
}
if err = trans.Commit(); err != nil {
t.Fatal("Failed to Commit:", err)
}
}
func TestTimezoneConversion(t *testing.T) {
zones := []string{"UTC", "US/Central", "US/Pacific", "Local"}
for _, tz := range zones {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db, err := sql.Open("sqlite3", tempFilename+"?_loc="+url.QueryEscape(tz))
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
_, err = db.Exec("DROP TABLE foo")
_, err = db.Exec("CREATE TABLE foo(id INTEGER, ts TIMESTAMP, dt DATETIME)")
if err != nil {
t.Fatal("Failed to create table:", err)
}
loc, err := time.LoadLocation(tz)
if err != nil {
t.Fatal("Failed to load location:", err)
}
timestamp1 := time.Date(2012, time.April, 6, 22, 50, 0, 0, time.UTC)
timestamp2 := time.Date(2006, time.January, 2, 15, 4, 5, 123456789, time.UTC)
timestamp3 := time.Date(2012, time.November, 4, 0, 0, 0, 0, time.UTC)
tests := []struct {
value interface{}
expected time.Time
}{
{"nonsense", time.Time{}.In(loc)},
{"0000-00-00 00:00:00", time.Time{}.In(loc)},
{timestamp1, timestamp1.In(loc)},
{timestamp1.Unix(), timestamp1.In(loc)},
{timestamp1.In(time.FixedZone("TEST", -7*3600)), timestamp1.In(loc)},
{timestamp1.Format("2006-01-02 15:04:05.000"), timestamp1.In(loc)},
{timestamp1.Format("2006-01-02T15:04:05.000"), timestamp1.In(loc)},
{timestamp1.Format("2006-01-02 15:04:05"), timestamp1.In(loc)},
{timestamp1.Format("2006-01-02T15:04:05"), timestamp1.In(loc)},
{timestamp2, timestamp2.In(loc)},
{"2006-01-02 15:04:05.123456789", timestamp2.In(loc)},
{"2006-01-02T15:04:05.123456789", timestamp2.In(loc)},
{"2012-11-04", timestamp3.In(loc)},
{"2012-11-04 00:00", timestamp3.In(loc)},
{"2012-11-04 00:00:00", timestamp3.In(loc)},
{"2012-11-04 00:00:00.000", timestamp3.In(loc)},
{"2012-11-04T00:00", timestamp3.In(loc)},
{"2012-11-04T00:00:00", timestamp3.In(loc)},
{"2012-11-04T00:00:00.000", timestamp3.In(loc)},
}
for i := range tests {
_, err = db.Exec("INSERT INTO foo(id, ts, dt) VALUES(?, ?, ?)", i, tests[i].value, tests[i].value)
if err != nil {
t.Fatal("Failed to insert timestamp:", err)
}
}
rows, err := db.Query("SELECT id, ts, dt FROM foo ORDER BY id ASC")
if err != nil {
t.Fatal("Unable to query foo table:", err)
}
defer rows.Close()
seen := 0
for rows.Next() {
var id int
var ts, dt time.Time
if err := rows.Scan(&id, &ts, &dt); err != nil {
t.Error("Unable to scan results:", err)
continue
}
if id < 0 || id >= len(tests) {
t.Error("Bad row id: ", id)
continue
}
seen++
if !tests[id].expected.Equal(ts) {
t.Errorf("Timestamp value for id %v (%v) should be %v, not %v", id, tests[id].value, tests[id].expected, ts)
}
if !tests[id].expected.Equal(dt) {
t.Errorf("Datetime value for id %v (%v) should be %v, not %v", id, tests[id].value, tests[id].expected, dt)
}
if tests[id].expected.Location().String() != ts.Location().String() {
t.Errorf("Location for id %v (%v) should be %v, not %v", id, tests[id].value, tests[id].expected.Location().String(), ts.Location().String())
}
if tests[id].expected.Location().String() != dt.Location().String() {
t.Errorf("Location for id %v (%v) should be %v, not %v", id, tests[id].value, tests[id].expected.Location().String(), dt.Location().String())
}
}
if seen != len(tests) {
t.Errorf("Expected to see %d rows", len(tests))
}
}
}
// TODO: Execer & Queryer currently disabled
// https://github.com/mattn/go-sqlite3/issues/82
func TestExecer(t *testing.T) {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
_, err = db.Exec(`
create table foo (id integer); -- one comment
insert into foo(id) values(?);
insert into foo(id) values(?);
insert into foo(id) values(?); -- another comment
`, 1, 2, 3)
if err != nil {
t.Error("Failed to call db.Exec:", err)
}
}
func TestQueryer(t *testing.T) {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
_, err = db.Exec(`
create table foo (id integer);
`)
if err != nil {
t.Error("Failed to call db.Query:", err)
}
rows, err := db.Query(`
insert into foo(id) values(?);
insert into foo(id) values(?);
insert into foo(id) values(?);
select id from foo order by id;
`, 3, 2, 1)
if err != nil {
t.Error("Failed to call db.Query:", err)
}
defer rows.Close()
n := 1
if rows != nil {
for rows.Next() {
var id int
err = rows.Scan(&id)
if err != nil {
t.Error("Failed to db.Query:", err)
}
if id != n {
t.Error("Failed to db.Query: not matched results")
}
}
}
}
func TestStress(t *testing.T) {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
db.Exec("CREATE TABLE foo (id int);")
db.Exec("INSERT INTO foo VALUES(1);")
db.Exec("INSERT INTO foo VALUES(2);")
db.Close()
for i := 0; i < 10000; i++ {
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
for j := 0; j < 3; j++ {
rows, err := db.Query("select * from foo where id=1;")
if err != nil {
t.Error("Failed to call db.Query:", err)
}
for rows.Next() {
var i int
if err := rows.Scan(&i); err != nil {
t.Errorf("Scan failed: %v\n", err)
}
}
if err := rows.Err(); err != nil {
t.Errorf("Post-scan failed: %v\n", err)
}
rows.Close()
}
db.Close()
}
}
func TestDateTimeLocal(t *testing.T) {
zone := "Asia/Tokyo"
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db, err := sql.Open("sqlite3", tempFilename+"?_loc="+zone)
if err != nil {
t.Fatal("Failed to open database:", err)
}
db.Exec("CREATE TABLE foo (dt datetime);")
db.Exec("INSERT INTO foo VALUES('2015-03-05 15:16:17');")
row := db.QueryRow("select * from foo")
var d time.Time
err = row.Scan(&d)
if err != nil {
t.Fatal("Failed to scan datetime:", err)
}
if d.Hour() == 15 || !strings.Contains(d.String(), "JST") {
t.Fatal("Result should have timezone", d)
}
db.Close()
db, err = sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
row = db.QueryRow("select * from foo")
err = row.Scan(&d)
if err != nil {
t.Fatal("Failed to scan datetime:", err)
}
if d.UTC().Hour() != 15 || !strings.Contains(d.String(), "UTC") {
t.Fatalf("Result should not have timezone %v %v", zone, d.String())
}
_, err = db.Exec("DELETE FROM foo")
if err != nil {
t.Fatal("Failed to delete table:", err)
}
dt, err := time.Parse("2006/1/2 15/4/5 -0700 MST", "2015/3/5 15/16/17 +0900 JST")
if err != nil {
t.Fatal("Failed to parse datetime:", err)
}
db.Exec("INSERT INTO foo VALUES(?);", dt)
db.Close()
db, err = sql.Open("sqlite3", tempFilename+"?_loc="+zone)
if err != nil {
t.Fatal("Failed to open database:", err)
}
row = db.QueryRow("select * from foo")
err = row.Scan(&d)
if err != nil {
t.Fatal("Failed to scan datetime:", err)
}
if d.Hour() != 15 || !strings.Contains(d.String(), "JST") {
t.Fatalf("Result should have timezone %v %v", zone, d.String())
}
}
func TestVersion(t *testing.T) {
s, n, id := Version()
if s == "" || n == 0 || id == "" {
t.Errorf("Version failed %q, %d, %q\n", s, n, id)
}
}
func TestStringContainingZero(t *testing.T) {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
_, err = db.Exec(`
create table foo (id integer, name, extra text);
`)
if err != nil {
t.Error("Failed to call db.Query:", err)
}
const text = "foo\x00bar"
_, err = db.Exec(`insert into foo(id, name, extra) values($1, $2, $2)`, 1, text)
if err != nil {
t.Error("Failed to call db.Exec:", err)
}
row := db.QueryRow(`select id, extra from foo where id = $1 and extra = $2`, 1, text)
if row == nil {
t.Error("Failed to call db.QueryRow")
}
var id int
var extra string
err = row.Scan(&id, &extra)
if err != nil {
t.Error("Failed to db.Scan:", err)
}
if id != 1 || extra != text {
t.Error("Failed to db.QueryRow: not matched results")
}
}
const CurrentTimeStamp = "2006-01-02 15:04:05"
type TimeStamp struct{ *time.Time }
func (t TimeStamp) Scan(value interface{}) error {
var err error
switch v := value.(type) {
case string:
*t.Time, err = time.Parse(CurrentTimeStamp, v)
case []byte:
*t.Time, err = time.Parse(CurrentTimeStamp, string(v))
default:
err = errors.New("invalid type for current_timestamp")
}
return err
}
func (t TimeStamp) Value() (driver.Value, error) {
return t.Time.Format(CurrentTimeStamp), nil
}
func TestDateTimeNow(t *testing.T) {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
db, err := sql.Open("sqlite3", tempFilename)
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
var d time.Time
err = db.QueryRow("SELECT datetime('now')").Scan(TimeStamp{&d})
if err != nil {
t.Fatal("Failed to scan datetime:", err)
}
}
func TestFunctionRegistration(t *testing.T) {
addi8_16_32 := func(a int8, b int16) int32 { return int32(a) + int32(b) }
addi64 := func(a, b int64) int64 { return a + b }
addu8_16_32 := func(a uint8, b uint16) uint32 { return uint32(a) + uint32(b) }
addu64 := func(a, b uint64) uint64 { return a + b }
addiu := func(a int, b uint) int64 { return int64(a) + int64(b) }
addf32_64 := func(a float32, b float64) float64 { return float64(a) + b }
not := func(a bool) bool { return !a }
regex := func(re, s string) (bool, error) {
return regexp.MatchString(re, s)
}
generic := func(a interface{}) int64 {
switch a.(type) {
case int64:
return 1
case float64:
return 2
case []byte:
return 3
case string:
return 4
default:
panic("unreachable")
}
}
variadic := func(a, b int64, c ...int64) int64 {
ret := a + b
for _, d := range c {
ret += d
}
return ret
}
variadicGeneric := func(a ...interface{}) int64 {
return int64(len(a))
}
sql.Register("sqlite3_FunctionRegistration", &SQLiteDriver{
ConnectHook: func(conn *SQLiteConn) error {
if err := conn.RegisterFunc("addi8_16_32", addi8_16_32, true); err != nil {
return err
}
if err := conn.RegisterFunc("addi64", addi64, true); err != nil {
return err
}
if err := conn.RegisterFunc("addu8_16_32", addu8_16_32, true); err != nil {
return err
}
if err := conn.RegisterFunc("addu64", addu64, true); err != nil {
return err
}
if err := conn.RegisterFunc("addiu", addiu, true); err != nil {
return err
}
if err := conn.RegisterFunc("addf32_64", addf32_64, true); err != nil {
return err
}
if err := conn.RegisterFunc("not", not, true); err != nil {
return err
}
if err := conn.RegisterFunc("regex", regex, true); err != nil {
return err
}
if err := conn.RegisterFunc("generic", generic, true); err != nil {
return err
}
if err := conn.RegisterFunc("variadic", variadic, true); err != nil {
return err
}
if err := conn.RegisterFunc("variadicGeneric", variadicGeneric, true); err != nil {
return err
}
return nil
},
})
db, err := sql.Open("sqlite3_FunctionRegistration", ":memory:")
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
ops := []struct {
query string
expected interface{}
}{
{"SELECT addi8_16_32(1,2)", int32(3)},
{"SELECT addi64(1,2)", int64(3)},
{"SELECT addu8_16_32(1,2)", uint32(3)},
{"SELECT addu64(1,2)", uint64(3)},
{"SELECT addiu(1,2)", int64(3)},
{"SELECT addf32_64(1.5,1.5)", float64(3)},
{"SELECT not(1)", false},
{"SELECT not(0)", true},
{`SELECT regex("^foo.*", "foobar")`, true},
{`SELECT regex("^foo.*", "barfoobar")`, false},
{"SELECT generic(1)", int64(1)},
{"SELECT generic(1.1)", int64(2)},
{`SELECT generic(NULL)`, int64(3)},
{`SELECT generic("foo")`, int64(4)},
{"SELECT variadic(1,2)", int64(3)},
{"SELECT variadic(1,2,3,4)", int64(10)},
{"SELECT variadic(1,1,1,1,1,1,1,1,1,1)", int64(10)},
{`SELECT variadicGeneric(1,"foo",2.3, NULL)`, int64(4)},
}
for _, op := range ops {
ret := reflect.New(reflect.TypeOf(op.expected))
err = db.QueryRow(op.query).Scan(ret.Interface())
if err != nil {
t.Errorf("Query %q failed: %s", op.query, err)
} else if !reflect.DeepEqual(ret.Elem().Interface(), op.expected) {
t.Errorf("Query %q returned wrong value: got %v (%T), want %v (%T)", op.query, ret.Elem().Interface(), ret.Elem().Interface(), op.expected, op.expected)
}
}
}
type sumAggregator int64
func (s *sumAggregator) Step(x int64) {
*s += sumAggregator(x)
}
func (s *sumAggregator) Done() int64 {
return int64(*s)
}
func TestAggregatorRegistration(t *testing.T) {
customSum := func() *sumAggregator {
var ret sumAggregator
return &ret
}
sql.Register("sqlite3_AggregatorRegistration", &SQLiteDriver{
ConnectHook: func(conn *SQLiteConn) error {
if err := conn.RegisterAggregator("customSum", customSum, true); err != nil {
return err
}
return nil
},
})
db, err := sql.Open("sqlite3_AggregatorRegistration", ":memory:")
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
_, err = db.Exec("create table foo (department integer, profits integer)")
if err != nil {
// trace feature is not implemented
t.Skip("Failed to create table:", err)
}
_, err = db.Exec("insert into foo values (1, 10), (1, 20), (2, 42)")
if err != nil {
t.Fatal("Failed to insert records:", err)
}
tests := []struct {
dept, sum int64
}{
{1, 30},
{2, 42},
}
for _, test := range tests {
var ret int64
err = db.QueryRow("select customSum(profits) from foo where department = $1 group by department", test.dept).Scan(&ret)
if err != nil {
t.Fatal("Query failed:", err)
}
if ret != test.sum {
t.Fatalf("Custom sum returned wrong value, got %d, want %d", ret, test.sum)
}
}
}
func rot13(r rune) rune {
switch {
case r >= 'A' && r <= 'Z':
return 'A' + (r-'A'+13)%26
case r >= 'a' && r <= 'z':
return 'a' + (r-'a'+13)%26
}
return r
}
func TestCollationRegistration(t *testing.T) {
collateRot13 := func(a, b string) int {
ra, rb := strings.Map(rot13, a), strings.Map(rot13, b)
return strings.Compare(ra, rb)
}
collateRot13Reverse := func(a, b string) int {
return collateRot13(b, a)
}
sql.Register("sqlite3_CollationRegistration", &SQLiteDriver{
ConnectHook: func(conn *SQLiteConn) error {
if err := conn.RegisterCollation("rot13", collateRot13); err != nil {
return err
}
if err := conn.RegisterCollation("rot13reverse", collateRot13Reverse); err != nil {
return err
}
return nil
},
})
db, err := sql.Open("sqlite3_CollationRegistration", ":memory:")
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
populate := []string{
`CREATE TABLE test (s TEXT)`,
`INSERT INTO test VALUES ("aaaa")`,
`INSERT INTO test VALUES ("ffff")`,
`INSERT INTO test VALUES ("qqqq")`,
`INSERT INTO test VALUES ("tttt")`,
`INSERT INTO test VALUES ("zzzz")`,
}
for _, stmt := range populate {
if _, err := db.Exec(stmt); err != nil {
t.Fatal("Failed to populate test DB:", err)
}
}
ops := []struct {
query string
want []string
}{
{
"SELECT * FROM test ORDER BY s COLLATE rot13 ASC",
[]string{
"qqqq",
"tttt",
"zzzz",
"aaaa",
"ffff",
},
},
{
"SELECT * FROM test ORDER BY s COLLATE rot13 DESC",
[]string{
"ffff",
"aaaa",
"zzzz",
"tttt",
"qqqq",
},
},
{
"SELECT * FROM test ORDER BY s COLLATE rot13reverse ASC",
[]string{
"ffff",
"aaaa",
"zzzz",
"tttt",
"qqqq",
},
},
{
"SELECT * FROM test ORDER BY s COLLATE rot13reverse DESC",
[]string{
"qqqq",
"tttt",
"zzzz",
"aaaa",
"ffff",
},
},
}
for _, op := range ops {
rows, err := db.Query(op.query)
if err != nil {
t.Fatalf("Query %q failed: %s", op.query, err)
}
got := []string{}
defer rows.Close()
for rows.Next() {
var s string
if err = rows.Scan(&s); err != nil {
t.Fatalf("Reading row for %q: %s", op.query, err)
}
got = append(got, s)
}
if err = rows.Err(); err != nil {
t.Fatalf("Reading rows for %q: %s", op.query, err)
}
if !reflect.DeepEqual(got, op.want) {
t.Fatalf("Unexpected output from %q\ngot:\n%s\n\nwant:\n%s", op.query, strings.Join(got, "\n"), strings.Join(op.want, "\n"))
}
}
}
func TestDeclTypes(t *testing.T) {
d := SQLiteDriver{}
conn, err := d.Open(":memory:")
if err != nil {
t.Fatal("Failed to begin transaction:", err)
}
defer conn.Close()
sqlite3conn := conn.(*SQLiteConn)
_, err = sqlite3conn.Exec("create table foo (id integer not null primary key, name text)", nil)
if err != nil {
t.Fatal("Failed to create table:", err)
}
_, err = sqlite3conn.Exec("insert into foo(name) values(\"bar\")", nil)
if err != nil {
t.Fatal("Failed to insert:", err)
}
rs, err := sqlite3conn.Query("select * from foo", nil)
if err != nil {
t.Fatal("Failed to select:", err)
}
defer rs.Close()
declTypes := rs.(*SQLiteRows).DeclTypes()
if !reflect.DeepEqual(declTypes, []string{"integer", "text"}) {
t.Fatal("Unexpected declTypes:", declTypes)
}
}
func TestPinger(t *testing.T) {
db, err := sql.Open("sqlite3", ":memory:")
if err != nil {
t.Fatal(err)
}
err = db.Ping()
if err != nil {
t.Fatal(err)
}
db.Close()
err = db.Ping()
if err == nil {
t.Fatal("Should be closed")
}
}
func TestUpdateAndTransactionHooks(t *testing.T) {
var events []string
var commitHookReturn = 0
sql.Register("sqlite3_UpdateHook", &SQLiteDriver{
ConnectHook: func(conn *SQLiteConn) error {
conn.RegisterCommitHook(func() int {
events = append(events, "commit")
return commitHookReturn
})
conn.RegisterRollbackHook(func() {
events = append(events, "rollback")
})
conn.RegisterUpdateHook(func(op int, db string, table string, rowid int64) {
events = append(events, fmt.Sprintf("update(op=%v db=%v table=%v rowid=%v)", op, db, table, rowid))
})
return nil
},
})
db, err := sql.Open("sqlite3_UpdateHook", ":memory:")
if err != nil {
t.Fatal("Failed to open database:", err)
}
defer db.Close()
statements := []string{
"create table foo (id integer primary key)",
"insert into foo values (9)",
"update foo set id = 99 where id = 9",
"delete from foo where id = 99",
}
for _, statement := range statements {
_, err = db.Exec(statement)
if err != nil {
t.Fatalf("Unable to prepare test data [%v]: %v", statement, err)
}
}
commitHookReturn = 1
_, err = db.Exec("insert into foo values (5)")
if err == nil {
t.Error("Commit hook failed to rollback transaction")
}
var expected = []string{
"commit",
fmt.Sprintf("update(op=%v db=main table=foo rowid=9)", SQLITE_INSERT),
"commit",
fmt.Sprintf("update(op=%v db=main table=foo rowid=99)", SQLITE_UPDATE),
"commit",
fmt.Sprintf("update(op=%v db=main table=foo rowid=99)", SQLITE_DELETE),
"commit",
fmt.Sprintf("update(op=%v db=main table=foo rowid=5)", SQLITE_INSERT),
"commit",
"rollback",
}
if !reflect.DeepEqual(events, expected) {
t.Errorf("Expected notifications %v but got %v", expected, events)
}
}
func TestNilAndEmptyBytes(t *testing.T) {
db, err := sql.Open("sqlite3", ":memory:")
if err != nil {
t.Fatal(err)
}
defer db.Close()
actualNil := []byte("use this to use an actual nil not a reference to nil")
emptyBytes := []byte{}
for tsti, tst := range []struct {
name string
columnType string
insertBytes []byte
expectedBytes []byte
}{
{"actual nil blob", "blob", actualNil, nil},
{"referenced nil blob", "blob", nil, nil},
{"empty blob", "blob", emptyBytes, emptyBytes},
{"actual nil text", "text", actualNil, nil},
{"referenced nil text", "text", nil, nil},
{"empty text", "text", emptyBytes, emptyBytes},
} {
if _, err = db.Exec(fmt.Sprintf("create table tbl%d (txt %s)", tsti, tst.columnType)); err != nil {
t.Fatal(tst.name, err)
}
if bytes.Equal(tst.insertBytes, actualNil) {
if _, err = db.Exec(fmt.Sprintf("insert into tbl%d (txt) values (?)", tsti), nil); err != nil {
t.Fatal(tst.name, err)
}
} else {
if _, err = db.Exec(fmt.Sprintf("insert into tbl%d (txt) values (?)", tsti), &tst.insertBytes); err != nil {
t.Fatal(tst.name, err)
}
}
rows, err := db.Query(fmt.Sprintf("select txt from tbl%d", tsti))
if err != nil {
t.Fatal(tst.name, err)
}
if !rows.Next() {
t.Fatal(tst.name, "no rows")
}
var scanBytes []byte
if err = rows.Scan(&scanBytes); err != nil {
t.Fatal(tst.name, err)
}
if err = rows.Err(); err != nil {
t.Fatal(tst.name, err)
}
if tst.expectedBytes == nil && scanBytes != nil {
t.Errorf("%s: %#v != %#v", tst.name, scanBytes, tst.expectedBytes)
} else if !bytes.Equal(scanBytes, tst.expectedBytes) {
t.Errorf("%s: %#v != %#v", tst.name, scanBytes, tst.expectedBytes)
}
}
}
var customFunctionOnce sync.Once
func BenchmarkCustomFunctions(b *testing.B) {
customFunctionOnce.Do(func() {
customAdd := func(a, b int64) int64 {
return a + b
}
sql.Register("sqlite3_BenchmarkCustomFunctions", &SQLiteDriver{
ConnectHook: func(conn *SQLiteConn) error {
// Impure function to force sqlite to reexecute it each time.
if err := conn.RegisterFunc("custom_add", customAdd, false); err != nil {
return err
}
return nil
},
})
})
db, err := sql.Open("sqlite3_BenchmarkCustomFunctions", ":memory:")
if err != nil {
b.Fatal("Failed to open database:", err)
}
defer db.Close()
b.ResetTimer()
for i := 0; i < b.N; i++ {
var i int64
err = db.QueryRow("SELECT custom_add(1,2)").Scan(&i)
if err != nil {
b.Fatal("Failed to run custom add:", err)
}
}
}
func TestSuite(t *testing.T) {
tempFilename := TempFilename(t)
defer os.Remove(tempFilename)
d, err := sql.Open("sqlite3", tempFilename+"?_busy_timeout=99999")
if err != nil {
t.Fatal(err)
}
defer d.Close()
db = &TestDB{t, d, SQLITE, sync.Once{}}
testing.RunTests(func(string, string) (bool, error) { return true, nil }, tests)
if !testing.Short() {
for _, b := range benchmarks {
fmt.Printf("%-20s", b.Name)
r := testing.Benchmark(b.F)
fmt.Printf("%10d %10.0f req/s\n", r.N, float64(r.N)/r.T.Seconds())
}
}
db.tearDown()
}
// Dialect is a type of dialect of databases.
type Dialect int
// Dialects for databases.
const (
SQLITE Dialect = iota // SQLITE mean SQLite3 dialect
POSTGRESQL // POSTGRESQL mean PostgreSQL dialect
MYSQL // MYSQL mean MySQL dialect
)
// DB provide context for the tests
type TestDB struct {
*testing.T
*sql.DB
dialect Dialect
once sync.Once
}
var db *TestDB
// the following tables will be created and dropped during the test
var testTables = []string{"foo", "bar", "t", "bench"}
var tests = []testing.InternalTest{
{Name: "TestResult", F: testResult},
{Name: "TestBlobs", F: testBlobs},
{Name: "TestManyQueryRow", F: testManyQueryRow},
{Name: "TestTxQuery", F: testTxQuery},
{Name: "TestPreparedStmt", F: testPreparedStmt},
}
var benchmarks = []testing.InternalBenchmark{
{Name: "BenchmarkExec", F: benchmarkExec},
{Name: "BenchmarkQuery", F: benchmarkQuery},
{Name: "BenchmarkParams", F: benchmarkParams},
{Name: "BenchmarkStmt", F: benchmarkStmt},
{Name: "BenchmarkRows", F: benchmarkRows},
{Name: "BenchmarkStmtRows", F: benchmarkStmtRows},
}
func (db *TestDB) mustExec(sql string, args ...interface{}) sql.Result {
res, err := db.Exec(sql, args...)
if err != nil {
db.Fatalf("Error running %q: %v", sql, err)
}
return res
}
func (db *TestDB) tearDown() {
for _, tbl := range testTables {
switch db.dialect {
case SQLITE:
db.mustExec("drop table if exists " + tbl)
case MYSQL, POSTGRESQL:
db.mustExec("drop table if exists " + tbl)
default:
db.Fatal("unknown dialect")
}
}
}
// q replaces ? parameters if needed
func (db *TestDB) q(sql string) string {
switch db.dialect {
case POSTGRESQL: // repace with $1, $2, ..
qrx := regexp.MustCompile(`\?`)
n := 0
return qrx.ReplaceAllStringFunc(sql, func(string) string {
n++
return "$" + strconv.Itoa(n)
})
}
return sql
}
func (db *TestDB) blobType(size int) string {
switch db.dialect {
case SQLITE:
return fmt.Sprintf("blob[%d]", size)
case POSTGRESQL:
return "bytea"
case MYSQL:
return fmt.Sprintf("VARBINARY(%d)", size)
}
panic("unknown dialect")
}
func (db *TestDB) serialPK() string {
switch db.dialect {
case SQLITE:
return "integer primary key autoincrement"
case POSTGRESQL:
return "serial primary key"
case MYSQL:
return "integer primary key auto_increment"
}
panic("unknown dialect")
}
func (db *TestDB) now() string {
switch db.dialect {
case SQLITE:
return "datetime('now')"
case POSTGRESQL:
return "now()"
case MYSQL:
return "now()"
}
panic("unknown dialect")
}
func makeBench() {
if _, err := db.Exec("create table bench (n varchar(32), i integer, d double, s varchar(32), t datetime)"); err != nil {
panic(err)
}
st, err := db.Prepare("insert into bench values (?, ?, ?, ?, ?)")
if err != nil {
panic(err)
}
defer st.Close()
for i := 0; i < 100; i++ {
if _, err = st.Exec(nil, i, float64(i), fmt.Sprintf("%d", i), time.Now()); err != nil {
panic(err)
}
}
}
// testResult is test for result
func testResult(t *testing.T) {
db.tearDown()
db.mustExec("create temporary table test (id " + db.serialPK() + ", name varchar(10))")
for i := 1; i < 3; i++ {
r := db.mustExec(db.q("insert into test (name) values (?)"), fmt.Sprintf("row %d", i))
n, err := r.RowsAffected()
if err != nil {
t.Fatal(err)
}
if n != 1 {
t.Errorf("got %v, want %v", n, 1)
}
n, err = r.LastInsertId()
if err != nil {
t.Fatal(err)
}
if n != int64(i) {
t.Errorf("got %v, want %v", n, i)
}
}
if _, err := db.Exec("error!"); err == nil {
t.Fatalf("expected error")
}
}
// testBlobs is test for blobs
func testBlobs(t *testing.T) {
db.tearDown()
var blob = []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
db.mustExec("create table foo (id integer primary key, bar " + db.blobType(16) + ")")
db.mustExec(db.q("insert into foo (id, bar) values(?,?)"), 0, blob)
want := fmt.Sprintf("%x", blob)
b := make([]byte, 16)
err := db.QueryRow(db.q("select bar from foo where id = ?"), 0).Scan(&b)
got := fmt.Sprintf("%x", b)
if err != nil {
t.Errorf("[]byte scan: %v", err)
} else if got != want {
t.Errorf("for []byte, got %q; want %q", got, want)
}
err = db.QueryRow(db.q("select bar from foo where id = ?"), 0).Scan(&got)
want = string(blob)
if err != nil {
t.Errorf("string scan: %v", err)
} else if got != want {
t.Errorf("for string, got %q; want %q", got, want)
}
}
// testManyQueryRow is test for many query row
func testManyQueryRow(t *testing.T) {
if testing.Short() {
t.Log("skipping in short mode")
return
}
db.tearDown()
db.mustExec("create table foo (id integer primary key, name varchar(50))")
db.mustExec(db.q("insert into foo (id, name) values(?,?)"), 1, "bob")
var name string
for i := 0; i < 10000; i++ {
err := db.QueryRow(db.q("select name from foo where id = ?"), 1).Scan(&name)
if err != nil || name != "bob" {
t.Fatalf("on query %d: err=%v, name=%q", i, err, name)
}
}
}
// testTxQuery is test for transactional query
func testTxQuery(t *testing.T) {
db.tearDown()
tx, err := db.Begin()
if err != nil {
t.Fatal(err)
}
defer tx.Rollback()
_, err = tx.Exec("create table foo (id integer primary key, name varchar(50))")
if err != nil {
t.Fatal(err)
}
_, err = tx.Exec(db.q("insert into foo (id, name) values(?,?)"), 1, "bob")
if err != nil {
t.Fatal(err)
}
r, err := tx.Query(db.q("select name from foo where id = ?"), 1)
if err != nil {
t.Fatal(err)
}
defer r.Close()
if !r.Next() {
if r.Err() != nil {
t.Fatal(err)
}
t.Fatal("expected one rows")
}
var name string
err = r.Scan(&name)
if err != nil {
t.Fatal(err)
}
}
// testPreparedStmt is test for prepared statement
func testPreparedStmt(t *testing.T) {
db.tearDown()
db.mustExec("CREATE TABLE t (count INT)")
sel, err := db.Prepare("SELECT count FROM t ORDER BY count DESC")
if err != nil {
t.Fatalf("prepare 1: %v", err)
}
ins, err := db.Prepare(db.q("INSERT INTO t (count) VALUES (?)"))
if err != nil {
t.Fatalf("prepare 2: %v", err)
}
for n := 1; n <= 3; n++ {
if _, err := ins.Exec(n); err != nil {
t.Fatalf("insert(%d) = %v", n, err)
}
}
const nRuns = 10
var wg sync.WaitGroup
for i := 0; i < nRuns; i++ {
wg.Add(1)
go func() {
defer wg.Done()
for j := 0; j < 10; j++ {
count := 0
if err := sel.QueryRow().Scan(&count); err != nil && err != sql.ErrNoRows {
t.Errorf("Query: %v", err)
return
}
if _, err := ins.Exec(rand.Intn(100)); err != nil {
t.Errorf("Insert: %v", err)
return
}
}
}()
}
wg.Wait()
}
// Benchmarks need to use panic() since b.Error errors are lost when
// running via testing.Benchmark() I would like to run these via go
// test -bench but calling Benchmark() from a benchmark test
// currently hangs go.
// benchmarkExec is benchmark for exec
func benchmarkExec(b *testing.B) {
for i := 0; i < b.N; i++ {
if _, err := db.Exec("select 1"); err != nil {
panic(err)
}
}
}
// benchmarkQuery is benchmark for query
func benchmarkQuery(b *testing.B) {
for i := 0; i < b.N; i++ {
var n sql.NullString
var i int
var f float64
var s string
// var t time.Time
if err := db.QueryRow("select null, 1, 1.1, 'foo'").Scan(&n, &i, &f, &s); err != nil {
panic(err)
}
}
}
// benchmarkParams is benchmark for params
func benchmarkParams(b *testing.B) {
for i := 0; i < b.N; i++ {
var n sql.NullString
var i int
var f float64
var s string
// var t time.Time
if err := db.QueryRow("select ?, ?, ?, ?", nil, 1, 1.1, "foo").Scan(&n, &i, &f, &s); err != nil {
panic(err)
}
}
}
// benchmarkStmt is benchmark for statement
func benchmarkStmt(b *testing.B) {
st, err := db.Prepare("select ?, ?, ?, ?")
if err != nil {
panic(err)
}
defer st.Close()
for n := 0; n < b.N; n++ {
var n sql.NullString
var i int
var f float64
var s string
// var t time.Time
if err := st.QueryRow(nil, 1, 1.1, "foo").Scan(&n, &i, &f, &s); err != nil {
panic(err)
}
}
}
// benchmarkRows is benchmark for rows
func benchmarkRows(b *testing.B) {
db.once.Do(makeBench)
for n := 0; n < b.N; n++ {
var n sql.NullString
var i int
var f float64
var s string
var t time.Time
r, err := db.Query("select * from bench")
if err != nil {
panic(err)
}
for r.Next() {
if err = r.Scan(&n, &i, &f, &s, &t); err != nil {
panic(err)
}
}
if err = r.Err(); err != nil {
panic(err)
}
}
}
// benchmarkStmtRows is benchmark for statement rows
func benchmarkStmtRows(b *testing.B) {
db.once.Do(makeBench)
st, err := db.Prepare("select * from bench")
if err != nil {
panic(err)
}
defer st.Close()
for n := 0; n < b.N; n++ {
var n sql.NullString
var i int
var f float64
var s string
var t time.Time
r, err := st.Query()
if err != nil {
panic(err)
}
for r.Next() {
if err = r.Scan(&n, &i, &f, &s, &t); err != nil {
panic(err)
}
}
if err = r.Err(); err != nil {
panic(err)
}
}
}