diff --git a/session_schema_test.go b/session_schema_test.go
index 4d8a4d5a..8a7016c9 100644
--- a/session_schema_test.go
+++ b/session_schema_test.go
@@ -200,3 +200,19 @@ func TestMetaInfo(t *testing.T) {
 	assert.EqualValues(t, "customtablename", tables[0].Name)
 	assert.EqualValues(t, "index_or_unique", tables[1].Name)
 }
+
+func TestCharst(t *testing.T) {
+	assert.NoError(t, prepareEngine())
+
+	err := testEngine.DropTables("user_charset")
+	if err != nil {
+		t.Error(err)
+		panic(err)
+	}
+
+	err = testEngine.Charset("utf8").Table("user_charset").CreateTable(&Userinfo{})
+	if err != nil {
+		t.Error(err)
+		panic(err)
+	}
+}
diff --git a/tag_test.go b/tag_test.go
new file mode 100644
index 00000000..4201b1c5
--- /dev/null
+++ b/tag_test.go
@@ -0,0 +1,189 @@
+// Copyright 2017 The Xorm Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package xorm
+
+import (
+	"errors"
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+type UserCU struct {
+	Id      int64
+	Name    string
+	Created time.Time `xorm:"created"`
+	Updated time.Time `xorm:"updated"`
+}
+
+func TestCreatedAndUpdated(t *testing.T) {
+	assert.NoError(t, prepareEngine())
+
+	u := new(UserCU)
+	err := testEngine.DropTables(u)
+	if err != nil {
+		t.Error(err)
+		panic(err)
+	}
+
+	err = testEngine.CreateTables(u)
+	if err != nil {
+		t.Error(err)
+		panic(err)
+	}
+
+	u.Name = "sss"
+	cnt, err := testEngine.Insert(u)
+	if err != nil {
+		t.Error(err)
+		panic(err)
+	}
+	if cnt != 1 {
+		err = errors.New("insert not returned 1")
+		t.Error(err)
+		panic(err)
+		return
+	}
+
+	u.Name = "xxx"
+	cnt, err = testEngine.Id(u.Id).Update(u)
+	if err != nil {
+		t.Error(err)
+		panic(err)
+	}
+	if cnt != 1 {
+		err = errors.New("update not returned 1")
+		t.Error(err)
+		panic(err)
+		return
+	}
+
+	u.Id = 0
+	u.Created = time.Now().Add(-time.Hour * 24 * 365)
+	u.Updated = u.Created
+	fmt.Println(u)
+	cnt, err = testEngine.NoAutoTime().Insert(u)
+	if err != nil {
+		t.Error(err)
+		panic(err)
+	}
+	if cnt != 1 {
+		err = errors.New("insert not returned 1")
+		t.Error(err)
+		panic(err)
+		return
+	}
+}
+
+type StrangeName struct {
+	Id_t int64 `xorm:"pk autoincr"`
+	Name string
+}
+
+func TestStrangeName(t *testing.T) {
+	assert.NoError(t, prepareEngine())
+
+	err := testEngine.DropTables(new(StrangeName))
+	if err != nil {
+		t.Error(err)
+	}
+
+	err = testEngine.CreateTables(new(StrangeName))
+	if err != nil {
+		t.Error(err)
+	}
+
+	_, err = testEngine.Insert(&StrangeName{Name: "sfsfdsfds"})
+	if err != nil {
+		t.Error(err)
+	}
+
+	beans := make([]StrangeName, 0)
+	err = testEngine.Find(&beans)
+	if err != nil {
+		t.Error(err)
+	}
+}
+
+type CreatedUpdated struct {
+	Id       int64
+	Name     string
+	Value    float64   `xorm:"numeric"`
+	Created  time.Time `xorm:"created"`
+	Created2 time.Time `xorm:"created"`
+	Updated  time.Time `xorm:"updated"`
+}
+
+func TestCreatedUpdated(t *testing.T) {
+	assert.NoError(t, prepareEngine())
+
+	err := testEngine.Sync(&CreatedUpdated{})
+	if err != nil {
+		t.Error(err)
+		panic(err)
+	}
+
+	c := &CreatedUpdated{Name: "test"}
+	_, err = testEngine.Insert(c)
+	if err != nil {
+		t.Error(err)
+		panic(err)
+	}
+
+	c2 := new(CreatedUpdated)
+	has, err := testEngine.Id(c.Id).Get(c2)
+	if err != nil {
+		t.Error(err)
+		panic(err)
+	}
+
+	if !has {
+		panic(errors.New("no id"))
+	}
+
+	c2.Value -= 1
+	_, err = testEngine.Id(c2.Id).Update(c2)
+	if err != nil {
+		t.Error(err)
+		panic(err)
+	}
+}
+
+type Lowercase struct {
+	Id    int64
+	Name  string
+	ended int64 `xorm:"-"`
+}
+
+func TestLowerCase(t *testing.T) {
+	assert.NoError(t, prepareEngine())
+
+	err := testEngine.Sync(&Lowercase{})
+	_, err = testEngine.Where("(id) > 0").Delete(&Lowercase{})
+	if err != nil {
+		t.Error(err)
+		panic(err)
+	}
+	_, err = testEngine.Insert(&Lowercase{ended: 1})
+	if err != nil {
+		t.Error(err)
+		panic(err)
+	}
+
+	ls := make([]Lowercase, 0)
+	err = testEngine.Find(&ls)
+	if err != nil {
+		t.Error(err)
+		panic(err)
+	}
+
+	if len(ls) != 1 {
+		err = errors.New("should be 1")
+		t.Error(err)
+		panic(err)
+	}
+}