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package dbus
import (
. "gopkg.in/check.v1"
)
func (s *S) TestConnectionWatchSignal(c *C) {
bus1, err := Connect(SessionBus)
c.Assert(err, IsNil)
defer bus1.Close()
// Set up a second bus connection to receive a signal.
watchReady := make(chan int)
complete := make(chan *Message)
go func(sender string, watchReady chan<- int, complete chan<- *Message) {
bus2, err := Connect(SessionBus)
if err != nil {
c.Error(err)
watchReady <- 0
complete <- nil
return
}
defer bus2.Close()
watch, err := bus2.WatchSignal(&MatchRule{
Type: TypeSignal,
Sender: sender,
Path: "/go/dbus/test",
Interface: "com.example.GoDbus",
Member: "TestSignal"})
watchReady <- 0
if err != nil {
c.Error(err)
bus2.Close()
complete <- nil
return
}
msg := <-watch.C
if err := watch.Cancel(); err != nil {
c.Error(err)
}
complete <- msg
}(bus1.UniqueName, watchReady, complete)
// Wait for the goroutine to configure the signal watch
<-watchReady
// Send the signal and wait for it to be received at the other end.
signal := NewSignalMessage("/go/dbus/test", "com.example.GoDbus", "TestSignal")
if err := bus1.Send(signal); err != nil {
c.Fatal(err)
}
signal2 := <-complete
c.Check(signal2, NotNil)
}
func (s *S) TestConnectionWatchSignalWithBusName(c *C) {
bus, err := Connect(SessionBus)
c.Assert(err, IsNil)
defer bus.Close()
// Request a bus name
result, err := bus.busProxy.RequestName("com.example.GoDbus", 0x4)
c.Assert(err, IsNil)
c.Assert(result, Equals, uint32(1)) // We are Primary Owner
// Set up a signal watch
received := make(chan *Message, 1)
watch, err := bus.WatchSignal(&MatchRule{
Type: TypeSignal,
Sender: "com.example.GoDbus",
Interface: "com.example.GoDbus",
Member: "TestSignal"})
c.Assert(err, IsNil)
defer watch.Cancel()
// pump received signals messages into our bufferred channel
go func() {
for msg := range watch.C {
received <- msg
}
}()
// Send the signal, and wait to receive it.
signal := NewSignalMessage("/go/dbus/test", "com.example.GoDbus", "TestSignal")
if err := bus.Send(signal); err != nil {
c.Fatal(err)
}
signal2 := <-received
c.Check(signal2, NotNil)
}
func (s *S) TestSignalWatchSetAdd(c *C) {
set := make(signalWatchSet)
watch := signalWatch{rule: MatchRule{
Type: TypeSignal,
Sender: ":1.42",
Path: "/foo",
Interface: "com.example.Foo",
Member: "Bar"}}
set.Add(&watch)
byInterface, ok := set["/foo"]
c.Assert(ok, Equals, true)
byMember, ok := byInterface["com.example.Foo"]
c.Assert(ok, Equals, true)
watches, ok := byMember["Bar"]
c.Assert(ok, Equals, true)
c.Check(watches, DeepEquals, []*signalWatch{&watch})
}
func (s *S) TestSignalWatchSetRemove(c *C) {
set := make(signalWatchSet)
watch1 := signalWatch{rule: MatchRule{
Type: TypeSignal,
Sender: ":1.42",
Path: "/foo",
Interface: "com.example.Foo",
Member: "Bar"}}
set.Add(&watch1)
watch2 := signalWatch{rule: MatchRule{
Type: TypeSignal,
Sender: ":1.43",
Path: "/foo",
Interface: "com.example.Foo",
Member: "Bar"}}
set.Add(&watch2)
c.Check(set.Remove(&watch1), Equals, true)
c.Check(set["/foo"]["com.example.Foo"]["Bar"], DeepEquals, []*signalWatch{&watch2})
// A second attempt at removal fails
c.Check(set.Remove(&watch1), Equals, false)
}
func (s *S) TestSignalWatchSetFindMatches(c *C) {
msg := NewSignalMessage("/foo", "com.example.Foo", "Bar")
msg.Sender = ":1.42"
set := make(signalWatchSet)
watch := signalWatch{rule: MatchRule{
Type: TypeSignal,
Sender: ":1.42",
Path: "/foo",
Interface: "com.example.Foo",
Member: "Bar"}}
set.Add(&watch)
c.Check(set.FindMatches(msg), DeepEquals, []*signalWatch{&watch})
set.Remove(&watch)
// An empty path also matches
watch.rule.Path = ""
set.Add(&watch)
c.Check(set.FindMatches(msg), DeepEquals, []*signalWatch{&watch})
set.Remove(&watch)
// Or an empty interface
watch.rule.Path = "/foo"
watch.rule.Interface = ""
set.Add(&watch)
c.Check(set.FindMatches(msg), DeepEquals, []*signalWatch{&watch})
set.Remove(&watch)
// Or an empty member
watch.rule.Interface = "com.example.Foo"
watch.rule.Member = ""
set.Add(&watch)
c.Check(set.FindMatches(msg), DeepEquals, []*signalWatch{&watch})
set.Remove(&watch)
}
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