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package rediswatcher
import (
"testing"
"time"
"github.com/casbin/casbin/v2"
"github.com/rafaeljusto/redigomock"
)
type testConn struct {
redigomock.Conn
}
func NewTestConn() *testConn {
tc := &testConn{*redigomock.NewConn()}
return tc
}
func TestWatcher(t *testing.T) {
if _, err := NewWatcher(""); err == nil {
t.Error("Connecting to nothing should fail")
}
// setup mock redis
c := NewTestConn()
c.Clear()
c.ReceiveWait = true
values := []interface{}{}
values = append(values, interface{}([]byte("subscribe")))
values = append(values, interface{}([]byte("/casbin")))
values = append(values, interface{}([]byte("1")))
c.Command("SUBSCRIBE", "/casbin").Expect(values)
w, err := NewWatcher("127.0.0.1:6379", WithRedisSubConnection(c), WithRedisPubConnection(c))
if err != nil {
t.Fatalf("Failed to connect to Redis: %v", err)
}
wi := w.(interface{})
rediswatch := wi.(*Watcher)
c.Command("PUBLISH", "/casbin", rediswatch.GetWatcherOptions().LocalID).Expect("1")
if err := w.Update(); err != nil {
t.Fatalf("Failed watcher.Update(): %v", err)
}
closed := false
c.CloseMock = func() error {
closed = true
return nil
}
w.Close()
if !closed {
t.Fatal("watcher.Close() failed to close Redis connection")
}
// multiple closes should not panic
w.Close()
}
func TestWithEnforcer(t *testing.T) {
// setup mock redis
c := NewTestConn()
c.Clear()
c.ReceiveWait = true
c.Command("PUBLISH", "/casbin", "casbin rules updated").Expect("1")
unsubValues := []interface{}{}
unsubValues = append(unsubValues, interface{}([]byte("unsubscribe")))
unsubValues = append(unsubValues, interface{}("a"))
unsubValues = append(unsubValues, interface{}([]byte("0")))
c.Command("UNSUBSCRIBE").Expect(unsubValues)
subValues := []interface{}{}
subValues = append(subValues, interface{}([]byte("subscribe")))
subValues = append(subValues, interface{}([]byte("/casbin")))
subValues = append(subValues, interface{}([]byte("1")))
c.Command("SUBSCRIBE", "/casbin").Expect(subValues)
values := []interface{}{}
values = append(values, interface{}([]byte("message")))
values = append(values, interface{}([]byte("/casbin")))
values = append(values, interface{}([]byte("casbin rules updated")))
c.AddSubscriptionMessage(values)
w, err := NewWatcher("127.0.0.1:6379", WithRedisSubConnection(c), WithRedisPubConnection(c))
if err != nil {
t.Fatalf("Failed to connect to Redis: %v", err)
}
e, err := casbin.NewEnforcer("examples/rbac_model.conf", "examples/rbac_policy.csv")
if err != nil {
t.Fatalf("Failed to create enforcer: %v", err)
}
e.SetWatcher(w)
ch := make(chan string, 1)
w.SetUpdateCallback(func(msg string) {
ch <- msg
})
e.SavePolicy()
go func() {
c.ReceiveNow <- true
}()
select {
case res := <-ch:
if res != "casbin rules updated" {
t.Fatalf("Message should be 'casbin rules updated', received '%v' instead", res)
}
case <-time.After(time.Second * 30):
t.Fatal("Enforcer message timed out")
}
}
func TestWithEnforcerSquash(t *testing.T) {
// setup mock redis
c := NewTestConn()
c.Clear()
c.ReceiveWait = true
c.Command("PUBLISH", "/casbin", "casbin rules updated").Expect("1")
unsubValues := []interface{}{}
unsubValues = append(unsubValues, interface{}([]byte("unsubscribe")))
unsubValues = append(unsubValues, interface{}("a"))
unsubValues = append(unsubValues, interface{}([]byte("0")))
c.Command("UNSUBSCRIBE").Expect(unsubValues)
subValues := []interface{}{}
subValues = append(subValues, interface{}([]byte("subscribe")))
subValues = append(subValues, interface{}([]byte("/casbin")))
subValues = append(subValues, interface{}([]byte("1")))
c.Command("SUBSCRIBE", "/casbin").Expect(subValues)
w, err := NewWatcher("127.0.0.1:6379", WithRedisSubConnection(c), WithRedisPubConnection(c), SquashMessages(true))
if err != nil {
t.Fatalf("Failed to connect to Redis: %v", err)
}
values := []interface{}{}
values = append(values, interface{}([]byte("message")))
values = append(values, interface{}([]byte("/casbin")))
wp := w.(interface{})
rw := wp.(*Watcher)
values = append(values, interface{}([]byte(rw.GetWatcherOptions().LocalID)))
c.AddSubscriptionMessage(values)
c.AddSubscriptionMessage(values)
e, err := casbin.NewEnforcer("examples/rbac_model.conf", "examples/rbac_policy.csv")
if err != nil {
t.Fatalf("Failed to create enforcer: %v", err)
}
e.SetWatcher(w)
ch := make(chan string, 2)
w.SetUpdateCallback(func(msg string) {
ch <- msg
})
e.SavePolicy()
go func() {
c.ReceiveNow <- true
c.ReceiveNow <- true
}()
select {
case res := <-ch:
if res != rw.GetWatcherOptions().LocalID {
t.Fatalf("Message should be '%s', received '%v' instead", rw.GetWatcherOptions().LocalID, res)
}
case <-time.After(time.Second * 5):
t.Fatal("Enforcer message timed out")
}
// should timeout for this one
select {
case res := <-ch:
t.Fatalf("Receieved message that should have been squashed. Message received '%v'", res)
case <-time.After(time.Millisecond * 50):
}
}
func TestWithEnforcerIgnoreSelf(t *testing.T) {
// setup mock redis
c := NewTestConn()
c.Clear()
c.ReceiveWait = true
c.Command("PUBLISH", "/casbin", "casbin rules updated").Expect("1")
unsubValues := []interface{}{}
unsubValues = append(unsubValues, interface{}([]byte("unsubscribe")))
unsubValues = append(unsubValues, interface{}("a"))
unsubValues = append(unsubValues, interface{}([]byte("0")))
c.Command("UNSUBSCRIBE").Expect(unsubValues)
subValues := []interface{}{}
subValues = append(subValues, interface{}([]byte("subscribe")))
subValues = append(subValues, interface{}([]byte("/casbin")))
subValues = append(subValues, interface{}([]byte("1")))
c.Command("SUBSCRIBE", "/casbin").Expect(subValues)
w, err := NewWatcher("127.0.0.1:6379", WithRedisSubConnection(c), WithRedisPubConnection(c), IgnoreSelf(true))
if err != nil {
t.Fatalf("Failed to connect to Redis: %v", err)
}
values := []interface{}{}
values = append(values, interface{}([]byte("message")))
values = append(values, interface{}([]byte("/casbin")))
wp := w.(interface{})
rw := wp.(*Watcher)
values = append(values, interface{}([]byte(rw.GetWatcherOptions().LocalID)))
c.AddSubscriptionMessage(values)
e, err := casbin.NewEnforcer("examples/rbac_model.conf", "examples/rbac_policy.csv")
if err != nil {
t.Fatalf("Failed to create enforcer: %v", err)
}
e.SetWatcher(w)
ch := make(chan string, 2)
w.SetUpdateCallback(func(msg string) {
ch <- msg
})
e.SavePolicy()
go func() {
c.ReceiveNow <- true
}()
// should timeout for this one
select {
case res := <-ch:
t.Fatalf("Receieved message that should have been ignored. Message received '%v'", res)
case <-time.After(time.Millisecond * 50):
}
}