func (s *interruptibleStorageSuite) TestInterruptStorageConcurrently(c *gc.C) {
closer, stor, _ := envtesting.CreateLocalTestStorage(c)
s.AddCleanup(func(c *gc.C) { closer.Close() })
reader := &errorReader{
close: make(chan struct{}),
wait: make(chan struct{}),
err: fmt.Errorf("read failed"),
}
istor := bootstrap.NewInterruptibleStorage(stor, reader.close)
err := istor.Put("name", reader, 3)
c.Assert(err, gc.ErrorMatches, ".*: interrupted")
c.Assert(reader.called, gc.Equals, 0) // reader is blocked
close(reader.wait)
}
func (s *interruptibleStorageSuite) TestInterruptStorage(c *gc.C) {
closer, stor, _ := envtesting.CreateLocalTestStorage(c)
s.AddCleanup(func(c *gc.C) { closer.Close() })
reader := &errorReader{
err: fmt.Errorf("read failed"),
}
interrupted := make(chan struct{})
istor := bootstrap.NewInterruptibleStorage(stor, interrupted)
err := istor.Put("name", reader, 3)
c.Assert(err, gc.ErrorMatches, ".*: read failed")
c.Assert(reader.called, gc.Equals, 1)
// If the channel is already closed, then the
// underlying reader is never deferred to.
close(interrupted)
err = istor.Put("name", reader, 3)
c.Assert(err, gc.ErrorMatches, ".*: interrupted")
c.Assert(reader.called, gc.Equals, 1)
}