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|
package service
import (
"encoding/json"
"errors"
"github.com/sirupsen/logrus"
"github.com/sirupsen/logrus/hooks/test"
"github.com/stretchr/testify/assert"
"sync"
"testing"
"time"
)
type testService struct {
mu sync.Mutex
waitForServe chan interface{}
delay time.Duration
ok bool
cfg Config
c Container
cfgE, serveE error
done chan interface{}
}
func (t *testService) Init(cfg Config, c Container) (enabled bool, err error) {
t.cfg = cfg
t.c = c
t.done = make(chan interface{})
return t.ok, t.cfgE
}
func (t *testService) Serve() error {
time.Sleep(t.delay)
if t.serveE != nil {
return t.serveE
}
if c := t.waitChan(); c != nil {
close(c)
t.setChan(nil)
}
<-t.done
return nil
}
func (t *testService) Stop() {
close(t.done)
}
func (t *testService) waitChan() chan interface{} {
t.mu.Lock()
defer t.mu.Unlock()
return t.waitForServe
}
func (t *testService) setChan(c chan interface{}) {
t.mu.Lock()
defer t.mu.Unlock()
t.waitForServe = c
}
type testCfg struct{ cfg string }
func (cfg *testCfg) Get(name string) Config {
vars := make(map[string]interface{})
json.Unmarshal([]byte(cfg.cfg), &vars)
v, ok := vars[name]
if !ok {
return nil
}
d, _ := json.Marshal(v)
return &testCfg{cfg: string(d)}
}
func (cfg *testCfg) Unmarshal(out interface{}) error { return json.Unmarshal([]byte(cfg.cfg), out) }
// Config defines RPC service config.
type dConfig struct {
// Indicates if RPC connection is enabled.
Value string
}
// Hydrate must populate Config values using given Config source. Must return error if Config is not valid.
func (c *dConfig) Hydrate(cfg Config) error {
if err := cfg.Unmarshal(c); err != nil {
return err
}
return nil
}
// InitDefaults allows to init blank config with pre-defined set of default values.
func (c *dConfig) InitDefaults() error {
c.Value = "default"
return nil
}
type dService struct {
Cfg *dConfig
}
func (s *dService) Init(cfg *dConfig) (bool, error) {
s.Cfg = cfg
return true, nil
}
func TestContainer_Register(t *testing.T) {
logger, hook := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
c := NewContainer(logger)
c.Register("test", &testService{})
assert.Equal(t, 1, len(hook.Entries))
}
func TestContainer_Has(t *testing.T) {
logger, hook := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
c := NewContainer(logger)
c.Register("test", &testService{})
assert.Equal(t, 1, len(hook.Entries))
assert.True(t, c.Has("test"))
assert.False(t, c.Has("another"))
}
func TestContainer_Get(t *testing.T) {
logger, hook := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
c := NewContainer(logger)
c.Register("test", &testService{})
assert.Equal(t, 1, len(hook.Entries))
s, st := c.Get("test")
assert.IsType(t, &testService{}, s)
assert.Equal(t, StatusRegistered, st)
s, st = c.Get("another")
assert.Nil(t, s)
assert.Equal(t, StatusUndefined, st)
}
func TestContainer_Stop_NotStarted(t *testing.T) {
logger, hook := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
c := NewContainer(logger)
c.Register("test", &testService{})
assert.Equal(t, 1, len(hook.Entries))
c.Stop()
}
func TestContainer_Configure(t *testing.T) {
logger, hook := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
svc := &testService{ok: true}
c := NewContainer(logger)
c.Register("test", svc)
assert.Equal(t, 1, len(hook.Entries))
assert.NoError(t, c.Init(&testCfg{`{"test":"something"}`}))
s, st := c.Get("test")
assert.IsType(t, &testService{}, s)
assert.Equal(t, StatusOK, st)
}
func TestContainer_Init_Default(t *testing.T) {
logger, hook := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
svc := &dService{}
c := NewContainer(logger)
c.Register("test", svc)
assert.Equal(t, 1, len(hook.Entries))
assert.NoError(t, c.Init(&testCfg{`{}`}))
s, st := c.Get("test")
assert.IsType(t, &dService{}, s)
assert.Equal(t, StatusOK, st)
assert.Equal(t, "default", svc.Cfg.Value)
}
func TestContainer_Init_Default_Overwrite(t *testing.T) {
logger, hook := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
svc := &dService{}
c := NewContainer(logger)
c.Register("test", svc)
assert.Equal(t, 1, len(hook.Entries))
assert.NoError(t, c.Init(&testCfg{`{"test":{"value": "something"}}`}))
s, st := c.Get("test")
assert.IsType(t, &dService{}, s)
assert.Equal(t, StatusOK, st)
assert.Equal(t, "something", svc.Cfg.Value)
}
func TestContainer_ConfigureNull(t *testing.T) {
logger, hook := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
svc := &testService{ok: true}
c := NewContainer(logger)
c.Register("test", svc)
assert.Equal(t, 1, len(hook.Entries))
assert.NoError(t, c.Init(&testCfg{`{"another":"something"}`}))
assert.Equal(t, 2, len(hook.Entries))
s, st := c.Get("test")
assert.IsType(t, &testService{}, s)
assert.Equal(t, StatusRegistered, st)
}
func TestContainer_ConfigureDisabled(t *testing.T) {
logger, hook := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
svc := &testService{ok: false}
c := NewContainer(logger)
c.Register("test", svc)
assert.Equal(t, 1, len(hook.Entries))
assert.NoError(t, c.Init(&testCfg{`{"test":"something"}`}))
assert.Equal(t, 2, len(hook.Entries))
s, st := c.Get("test")
assert.IsType(t, &testService{}, s)
assert.Equal(t, StatusRegistered, st)
}
func TestContainer_ConfigureError(t *testing.T) {
logger, hook := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
svc := &testService{
ok: false,
cfgE: errors.New("configure error"),
}
c := NewContainer(logger)
c.Register("test", svc)
assert.Equal(t, 1, len(hook.Entries))
err := c.Init(&testCfg{`{"test":"something"}`})
assert.Error(t, err)
assert.Contains(t, err.Error(), "configure error")
assert.Contains(t, err.Error(), "test")
s, st := c.Get("test")
assert.IsType(t, &testService{}, s)
assert.Equal(t, StatusRegistered, st)
}
func TestContainer_ConfigureTwice(t *testing.T) {
logger, hook := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
svc := &testService{ok: true}
c := NewContainer(logger)
c.Register("test", svc)
assert.Equal(t, 1, len(hook.Entries))
assert.NoError(t, c.Init(&testCfg{`{"test":"something"}`}))
assert.Error(t, c.Init(&testCfg{`{"test":"something"}`}))
}
func TestContainer_ServeEmptyContainer(t *testing.T) {
logger, hook := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
svc := &testService{ok: true}
c := NewContainer(logger)
c.Register("test", svc)
assert.Equal(t, 1, len(hook.Entries))
assert.NoError(t, c.Serve())
c.Stop()
}
func TestContainer_Serve(t *testing.T) {
logger, hook := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
svc := &testService{
ok: true,
waitForServe: make(chan interface{}),
}
c := NewContainer(logger)
c.Register("test", svc)
assert.Equal(t, 1, len(hook.Entries))
assert.NoError(t, c.Init(&testCfg{`{"test":"something"}`}))
go func() {
assert.NoError(t, c.Serve())
}()
<-svc.waitChan()
s, st := c.Get("test")
assert.IsType(t, &testService{}, s)
assert.Equal(t, StatusServing, st)
c.Stop()
s, st = c.Get("test")
assert.IsType(t, &testService{}, s)
assert.Equal(t, StatusStopped, st)
}
func TestContainer_ServeError(t *testing.T) {
logger, hook := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
svc := &testService{
ok: true,
waitForServe: make(chan interface{}),
serveE: errors.New("serve error"),
}
c := NewContainer(logger)
c.Register("test", svc)
assert.Equal(t, 1, len(hook.Entries))
assert.NoError(t, c.Init(&testCfg{`{"test":"something"}`}))
err := c.Serve()
assert.Error(t, err)
assert.Contains(t, err.Error(), "serve error")
assert.Contains(t, err.Error(), "test")
s, st := c.Get("test")
assert.IsType(t, &testService{}, s)
assert.Equal(t, StatusStopped, st)
}
func TestContainer_ServeErrorMultiple(t *testing.T) {
logger, hook := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
svc := &testService{
ok: true,
delay: time.Millisecond * 10,
waitForServe: make(chan interface{}),
serveE: errors.New("serve error"),
}
svc2 := &testService{
ok: true,
waitForServe: make(chan interface{}),
}
c := NewContainer(logger)
c.Register("test2", svc2)
c.Register("test", svc)
assert.Equal(t, 2, len(hook.Entries))
assert.NoError(t, c.Init(&testCfg{`{"test":"something", "test2":"something-else"}`}))
err := c.Serve()
assert.Error(t, err)
assert.Contains(t, err.Error(), "serve error")
assert.Contains(t, err.Error(), "test")
s, st := c.Get("test")
assert.IsType(t, &testService{}, s)
assert.Equal(t, StatusStopped, st)
s, st = c.Get("test2")
assert.IsType(t, &testService{}, s)
assert.Equal(t, StatusStopped, st)
}
type testInitA struct{}
func (t *testInitA) Init() error {
return nil
}
type testInitB struct{}
func (t *testInitB) Init() (int, error) {
return 0, nil
}
func TestContainer_InitErrorA(t *testing.T) {
logger, _ := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
c := NewContainer(logger)
c.Register("test", &testInitA{})
assert.Error(t, c.Init(&testCfg{`{"test":"something", "test2":"something-else"}`}))
}
func TestContainer_InitErrorB(t *testing.T) {
logger, _ := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
c := NewContainer(logger)
c.Register("test", &testInitB{})
assert.Error(t, c.Init(&testCfg{`{"test":"something", "test2":"something-else"}`}))
}
type testInitC struct{}
func TestContainer_NoInit(t *testing.T) {
logger, _ := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
c := NewContainer(logger)
c.Register("test", &testInitC{})
assert.NoError(t, c.Init(&testCfg{`{"test":"something", "test2":"something-else"}`}))
}
type testInitD struct {
c *testInitC
}
type DCfg struct {
V string
}
// Hydrate must populate Config values using given Config source. Must return error if Config is not valid.
func (c *DCfg) Hydrate(cfg Config) error {
if err := cfg.Unmarshal(c); err != nil {
return err
}
if c.V == "fail" {
return errors.New("failed config")
}
return nil
}
func (t *testInitD) Init(r *testInitC, c Container, cfg *DCfg) (bool, error) {
if r == nil {
return false, errors.New("unable to find testInitC")
}
if c == nil {
return false, errors.New("unable to find Container")
}
if cfg.V != "ok" {
return false, errors.New("invalid config")
}
return false, nil
}
func TestContainer_InitDependency(t *testing.T) {
logger, _ := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
c := NewContainer(logger)
c.Register("test", &testInitC{})
c.Register("test2", &testInitD{})
assert.NoError(t, c.Init(&testCfg{`{"test":"something", "test2":{"v":"ok"}}`}))
}
func TestContainer_InitDependencyFail(t *testing.T) {
logger, _ := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
c := NewContainer(logger)
c.Register("test", &testInitC{})
c.Register("test2", &testInitD{})
assert.Error(t, c.Init(&testCfg{`{"test":"something", "test2":{"v":"fail"}}`}))
}
func TestContainer_InitDependencyEmpty(t *testing.T) {
logger, _ := test.NewNullLogger()
logger.SetLevel(logrus.DebugLevel)
c := NewContainer(logger)
c.Register("test2", &testInitD{})
assert.Contains(t, c.Init(&testCfg{`{"test2":{"v":"ok"}}`}).Error(), "testInitC")
}
|
