The following error sometimes occurs in the state package.
The issue appears to be a race between the watcher loop and the assertion. The watcher will see the two changes (two interfaces disabled) individually, but the assertion will *usually* only see them as a single event because it checks after the watcher has seen both events.
----------------------------------------------------------------------
FAIL: machine_test.go:1750: MachineSuite.TestWatchInterfaces
[LOG] 0:00.003 INFO juju.state opening state, mongo addresses: ["localhost:40029"]; entity %!q(<nil>)
[LOG] 0:00.003 DEBUG juju.state dialing mongo
[LOG] 0:00.005 INFO juju.mongo dialled mongo successfully on address "127.0.0.1:40029"
[LOG] 0:00.005 DEBUG juju.state connection established
[LOG] 0:00.023 INFO juju.state adding state server info to legacy environment
[LOG] 0:00.023 INFO juju.state found existing state servers []
[LOG] 0:00.039 INFO juju.state initializing environment
machine_test.go:1808:
wc.AssertOneChange()
testing/watcher.go:76:
c.Fatalf("watcher sent unexpected change: (_, %v)", ok)
<http://
FAIL: machine_
...
machine_
wc.
testing/
c.Fatalf(
... Error: watcher sent unexpected change: (_, true)
...
FAIL github.
This test was added in PR 207.
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<http://
FAIL: server_test.go:96: serverSuite.
...
server_test.go:104:
c.Assert(err, gc.IsNil)
... value *net.OpError = &net.OpError{
Addr:(*
Err:(*os.
address already in use")
...
FAIL github.
This test was added in PR 224.
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