forked from go-gorm/gorm
/
prepared_stmt_test.go
196 lines (156 loc) · 4.52 KB
/
prepared_stmt_test.go
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package tests_test
import (
"context"
"errors"
"sync"
"testing"
"time"
"gorm.io/gorm"
. "gorm.io/gorm/utils/tests"
)
func TestPreparedStmt(t *testing.T) {
tx := DB.Session(&gorm.Session{PrepareStmt: true})
if _, ok := tx.ConnPool.(*gorm.PreparedStmtDB); !ok {
t.Fatalf("should assign PreparedStatement Manager back to database when using PrepareStmt mode")
}
ctx, cancel := context.WithTimeout(context.Background(), 500*time.Millisecond)
defer cancel()
txCtx := tx.WithContext(ctx)
user := *GetUser("prepared_stmt", Config{})
txCtx.Create(&user)
var result1 User
if err := txCtx.Find(&result1, user.ID).Error; err != nil {
t.Fatalf("no error should happen but got %v", err)
}
time.Sleep(time.Second)
var result2 User
if err := tx.Find(&result2, user.ID).Error; err != nil {
t.Fatalf("no error should happen but got %v", err)
}
user2 := *GetUser("prepared_stmt2", Config{})
if err := txCtx.Create(&user2).Error; err == nil {
t.Fatalf("should failed to create with timeout context")
}
if err := tx.Create(&user2).Error; err != nil {
t.Fatalf("failed to create, got error %v", err)
}
var result3 User
if err := tx.Find(&result3, user2.ID).Error; err != nil {
t.Fatalf("no error should happen but got %v", err)
}
}
func TestPreparedStmtFromTransaction(t *testing.T) {
db := DB.Session(&gorm.Session{PrepareStmt: true, SkipDefaultTransaction: true})
tx := db.Begin()
defer func() {
if r := recover(); r != nil {
tx.Rollback()
}
}()
if err := tx.Error; err != nil {
t.Errorf("Failed to start transaction, got error %v\n", err)
}
if err := tx.Where("name=?", "zzjin").Delete(&User{}).Error; err != nil {
tx.Rollback()
t.Errorf("Failed to run one transaction, got error %v\n", err)
}
if err := tx.Create(&User{Name: "zzjin"}).Error; err != nil {
tx.Rollback()
t.Errorf("Failed to run one transaction, got error %v\n", err)
}
if err := tx.Commit().Error; err != nil {
t.Errorf("Failed to commit transaction, got error %v\n", err)
}
if result := db.Where("name=?", "zzjin").Delete(&User{}); result.Error != nil || result.RowsAffected != 1 {
t.Fatalf("Failed, got error: %v, rows affected: %v", result.Error, result.RowsAffected)
}
tx2 := db.Begin()
if result := tx2.Where("name=?", "zzjin").Delete(&User{}); result.Error != nil || result.RowsAffected != 0 {
t.Fatalf("Failed, got error: %v, rows affected: %v", result.Error, result.RowsAffected)
}
tx2.Commit()
}
func TestPreparedStmtDeadlock(t *testing.T) {
tx, err := OpenTestConnection()
AssertEqual(t, err, nil)
sqlDB, _ := tx.DB()
sqlDB.SetMaxOpenConns(1)
tx = tx.Session(&gorm.Session{PrepareStmt: true})
wg := sync.WaitGroup{}
for i := 0; i < 100; i++ {
wg.Add(1)
go func() {
user := User{Name: "jinzhu"}
tx.Create(&user)
var result User
tx.First(&result)
wg.Done()
}()
}
wg.Wait()
conn, ok := tx.ConnPool.(*gorm.PreparedStmtDB)
AssertEqual(t, ok, true)
AssertEqual(t, len(conn.Stmts), 2)
for _, stmt := range conn.Stmts {
if stmt == nil {
t.Fatalf("stmt cannot bee nil")
}
}
AssertEqual(t, sqlDB.Stats().InUse, 0)
}
func TestPreparedStmtError(t *testing.T) {
tx, err := OpenTestConnection()
AssertEqual(t, err, nil)
sqlDB, _ := tx.DB()
sqlDB.SetMaxOpenConns(1)
tx = tx.Session(&gorm.Session{PrepareStmt: true})
wg := sync.WaitGroup{}
for i := 0; i < 10; i++ {
wg.Add(1)
go func() {
// err prepare
tag := Tag{Locale: "zh"}
tx.Table("users").Find(&tag)
wg.Done()
}()
}
wg.Wait()
conn, ok := tx.ConnPool.(*gorm.PreparedStmtDB)
AssertEqual(t, ok, true)
AssertEqual(t, len(conn.Stmts), 0)
AssertEqual(t, sqlDB.Stats().InUse, 0)
}
func TestPreparedStmtInTransaction(t *testing.T) {
user := User{Name: "jinzhu"}
if err := DB.Transaction(func(tx *gorm.DB) error {
tx.Session(&gorm.Session{PrepareStmt: true}).Create(&user)
return errors.New("test")
}); err == nil {
t.Error(err)
}
var result User
if err := DB.First(&result, user.ID).Error; err == nil {
t.Errorf("Failed, got error: %v", err)
}
}
func TestPreparedStmtReset(t *testing.T) {
tx := DB.Session(&gorm.Session{PrepareStmt: true})
user := *GetUser("prepared_stmt_reset", Config{})
tx = tx.Create(&user)
pdb, ok := tx.ConnPool.(*gorm.PreparedStmtDB)
if !ok {
t.Fatalf("should assign PreparedStatement Manager back to database when using PrepareStmt mode")
}
pdb.Mux.Lock()
if len(pdb.Stmts) == 0 {
pdb.Mux.Unlock()
t.Fatalf("prepared stmt can not be empty")
}
pdb.Mux.Unlock()
pdb.Reset()
pdb.Mux.Lock()
defer pdb.Mux.Unlock()
if len(pdb.Stmts) != 0 {
t.Fatalf("prepared stmt should be empty")
}
}