gorm/naming_test.go
2019-10-12 18:18:12 +08:00

136 lines
2.9 KiB
Go

package gorm_test
import (
"bytes"
"testing"
"github.com/jinzhu/gorm"
)
func TestTheNamingStrategy(t *testing.T) {
cases := []struct {
name string
namer gorm.Namer
expected string
}{
{name: "auth", expected: "auth", namer: gorm.TheNamingStrategy.DB},
{name: "userRestrictions", expected: "user_restrictions", namer: gorm.TheNamingStrategy.Table},
{name: "clientID", expected: "client_id", namer: gorm.TheNamingStrategy.Column},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
result := c.namer(c.name)
if result != c.expected {
t.Errorf("error in naming strategy. expected: %v got :%v\n", c.expected, result)
}
})
}
}
func TestAddNamingStrategy(t *testing.T) {
// users can set their custom namer
custom := &gorm.NamingStrategy{
Column: CustomNamer,
}
gorm.AddNamingStrategy(custom)
// test
cases := []struct {
name string
namer gorm.Namer
expected string
}{
{name: "auth", expected: "auth", namer: gorm.TheNamingStrategy.DB},
{name: "userRestrictions", expected: "user_restrictions", namer: gorm.TheNamingStrategy.Table},
{name: "clientID", expected: "clientID", namer: gorm.TheNamingStrategy.Column},
{name: "Client0ID", expected: "client0ID", namer: gorm.TheNamingStrategy.Column},
{name: "_Client_ID_", expected: "_Client_ID_", namer: gorm.TheNamingStrategy.Column},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
result := c.namer(c.name)
if result != c.expected {
t.Errorf("error in naming strategy. expected: %v got :%v\n", c.expected, result)
}
})
}
}
func CustomNamer(name string) string {
// set `smap` public access and users can use it to cache
if v := gorm.Smap.Get(name); v != "" {
return v
}
const (
lower = false
upper = true
)
var (
value = name
buf = bytes.NewBufferString("")
currCase bool
)
for i, v := range value {
currCase = bool(value[i] >= 'A' && value[i] <= 'Z')
if i == 0 && currCase == upper {
buf.WriteRune(v + 32)
} else {
buf.WriteRune(v)
}
}
s := buf.String()
gorm.Smap.Set(name, s)
return s
}
func TestNamingStrategy(t *testing.T) {
dbNameNS := func(name string) string {
return "db_" + name
}
tableNameNS := func(name string) string {
return "tbl_" + name
}
columnNameNS := func(name string) string {
return "col_" + name
}
ns := &gorm.NamingStrategy{
DB: dbNameNS,
Table: tableNameNS,
Column: columnNameNS,
}
cases := []struct {
name string
namer gorm.Namer
expected string
}{
{name: "auth", expected: "db_auth", namer: ns.DB},
{name: "user", expected: "tbl_user", namer: ns.Table},
{name: "password", expected: "col_password", namer: ns.Column},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
result := c.namer(c.name)
if result != c.expected {
t.Errorf("error in naming strategy. expected: %v got :%v\n", c.expected, result)
}
})
}
}