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package file
import (
"errors"
"os"
"path/filepath"
"reflect"
"sync"
"testing"
"time"
"github.com/go-kratos/kratos/v2/config"
)
const (
_testJSON = `
{
"test":{
"settings":{
"int_key":1000,
"float_key":1000.1,
"duration_key":10000,
"string_key":"string_value"
},
"server":{
"addr":"127.0.0.1",
"port":8000
}
},
"foo":[
{
"name":"nihao",
"age":18
},
{
"name":"nihao",
"age":18
}
]
}`
_testJSONUpdate = `
{
"test":{
"settings":{
"int_key":1000,
"float_key":1000.1,
"duration_key":10000,
"string_key":"string_value"
},
"server":{
"addr":"127.0.0.1",
"port":8000
}
},
"foo":[
{
"name":"nihao",
"age":18
},
{
"name":"nihao",
"age":18
}
],
"bar":{
"event":"update"
}
}`
// _testYaml = `
//Foo:
// bar :
// - {name: nihao,age: 1}
// - {name: nihao,age: 1}
//
//
//`
)
//func TestScan(t *testing.T) {
//
//}
func TestFile(t *testing.T) {
var (
path = filepath.Join(t.TempDir(), "test_config")
file = filepath.Join(path, "test.json")
data = []byte(_testJSON)
)
defer os.Remove(path)
if err := os.MkdirAll(path, 0o700); err != nil {
t.Error(err)
}
if err := os.WriteFile(file, data, 0o666); err != nil {
t.Error(err)
}
testSource(t, file, data)
testSource(t, path, data)
testWatchFile(t, file)
testWatchDir(t, path, file)
}
func testWatchFile(t *testing.T, path string) {
t.Log(path)
s := NewSource(path)
watch, err := s.Watch()
if err != nil {
t.Error(err)
}
f, err := os.OpenFile(path, os.O_RDWR, 0)
if err != nil {
t.Error(err)
}
defer f.Close()
_, err = f.WriteString(_testJSONUpdate)
if err != nil {
t.Error(err)
}
kvs, err := watch.Next()
if err != nil {
t.Errorf(`watch.Next() error(%v)`, err)
}
if !reflect.DeepEqual(string(kvs[0].Value), _testJSONUpdate) {
t.Errorf(`string(kvs[0].Value(%v) is not equal to _testJSONUpdate(%v)`, kvs[0].Value, _testJSONUpdate)
}
newFilepath := filepath.Join(filepath.Dir(path), "test1.json")
if err = os.Rename(path, newFilepath); err != nil {
t.Error(err)
}
kvs, err = watch.Next()
if err == nil {
t.Errorf(`watch.Next() error(%v)`, err)
}
if kvs != nil {
t.Errorf(`watch.Next() error(%v)`, err)
}
err = watch.Stop()
if err != nil {
t.Errorf(`watch.Stop() error(%v)`, err)
}
if err := os.Rename(newFilepath, path); err != nil {
t.Error(err)
}
}
func testWatchDir(t *testing.T, path, file string) {
t.Log(path)
t.Log(file)
s := NewSource(path)
watch, err := s.Watch()
if err != nil {
t.Error(err)
}
f, err := os.OpenFile(file, os.O_RDWR, 0)
if err != nil {
t.Error(err)
}
defer f.Close()
_, err = f.WriteString(_testJSONUpdate)
if err != nil {
t.Error(err)
}
kvs, err := watch.Next()
if err != nil {
t.Errorf(`watch.Next() error(%v)`, err)
}
if !reflect.DeepEqual(string(kvs[0].Value), _testJSONUpdate) {
t.Errorf(`string(kvs[0].Value(%v) is not equal to _testJSONUpdate(%v)`, kvs[0].Value, _testJSONUpdate)
}
}
func testSource(t *testing.T, path string, data []byte) {
t.Log(path)
s := NewSource(path)
kvs, err := s.Load()
if err != nil {
t.Error(err)
}
if string(kvs[0].Value) != string(data) {
t.Errorf("no expected: %s, but got: %s", kvs[0].Value, data)
}
}
func TestConfig(t *testing.T) {
path := filepath.Join(t.TempDir(), "test_config.json")
defer os.Remove(path)
if err := os.WriteFile(path, []byte(_testJSON), 0o666); err != nil {
t.Error(err)
}
c := config.New(config.WithSource(
NewSource(path),
))
testScan(t, c)
testConfig(t, c)
}
func testConfig(t *testing.T, c config.Config) {
expected := map[string]interface{}{
"test.settings.int_key": int64(1000),
"test.settings.float_key": float64(1000.1),
"test.settings.string_key": "string_value",
"test.settings.duration_key": time.Duration(10000),
"test.server.addr": "127.0.0.1",
"test.server.port": int64(8000),
}
if err := c.Load(); err != nil {
t.Error(err)
}
for key, value := range expected {
switch value.(type) {
case int64:
if v, err := c.Value(key).Int(); err != nil {
t.Error(key, value, err)
} else if v != value {
t.Errorf("no expect key: %s value: %v, but got: %v", key, value, v)
}
case float64:
if v, err := c.Value(key).Float(); err != nil {
t.Error(key, value, err)
} else if v != value {
t.Errorf("no expect key: %s value: %v, but got: %v", key, value, v)
}
case string:
if v, err := c.Value(key).String(); err != nil {
t.Error(key, value, err)
} else if v != value {
t.Errorf("no expect key: %s value: %v, but got: %v", key, value, v)
}
case time.Duration:
if v, err := c.Value(key).Duration(); err != nil {
t.Error(key, value, err)
} else if v != value {
t.Errorf("no expect key: %s value: %v, but got: %v", key, value, v)
}
}
}
// scan
var settings struct {
IntKey int64 `json:"int_key"`
FloatKey float64 `json:"float_key"`
StringKey string `json:"string_key"`
DurationKey time.Duration `json:"duration_key"`
}
if err := c.Value("test.settings").Scan(&settings); err != nil {
t.Error(err)
}
if v := expected["test.settings.int_key"]; settings.IntKey != v {
t.Errorf("no expect int_key value: %v, but got: %v", settings.IntKey, v)
}
if v := expected["test.settings.float_key"]; settings.FloatKey != v {
t.Errorf("no expect float_key value: %v, but got: %v", settings.FloatKey, v)
}
if v := expected["test.settings.string_key"]; settings.StringKey != v {
t.Errorf("no expect string_key value: %v, but got: %v", settings.StringKey, v)
}
if v := expected["test.settings.duration_key"]; settings.DurationKey != v {
t.Errorf("no expect duration_key value: %v, but got: %v", settings.DurationKey, v)
}
// not found
if _, err := c.Value("not_found_key").Bool(); errors.Is(err, config.ErrNotFound) {
t.Logf("not_found_key not match: %v", err)
}
}
func testScan(t *testing.T, c config.Config) {
type TestJSON struct {
Test struct {
Settings struct {
IntKey int `json:"int_key"`
FloatKey float64 `json:"float_key"`
DurationKey int `json:"duration_key"`
StringKey string `json:"string_key"`
} `json:"settings"`
Server struct {
Addr string `json:"addr"`
Port int `json:"port"`
} `json:"server"`
} `json:"test"`
Foo []struct {
Name string `json:"name"`
Age int `json:"age"`
} `json:"foo"`
}
var conf TestJSON
if err := c.Load(); err != nil {
t.Error(err)
}
if err := c.Scan(&conf); err != nil {
t.Error(err)
}
t.Log(conf)
}
func TestMergeDataRace(t *testing.T) {
path := filepath.Join(t.TempDir(), "test_config.json")
defer os.Remove(path)
if err := os.WriteFile(path, []byte(_testJSON), 0o666); err != nil {
t.Error(err)
}
c := config.New(config.WithSource(
NewSource(path),
))
const count = 80
wg := &sync.WaitGroup{}
wg.Add(2)
startCh := make(chan struct{})
go func() {
defer wg.Done()
<-startCh
for i := 0; i < count; i++ {
var conf struct{}
if err := c.Scan(&conf); err != nil {
t.Error(err)
}
}
}()
go func() {
defer wg.Done()
<-startCh
for i := 0; i < count; i++ {
if err := c.Load(); err != nil {
t.Error(err)
}
}
}()
close(startCh)
wg.Wait()
}