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3aa008ab04
The current implementation of subscribe is difficult to mock because the queue that we send updates on in unexported, so you cannot create a subscribe.Client object and then add your own updates. While it is possible to run a subscribe server in tests, subscribe servers will shutdown before dispatching their udpates to all clients, which can be flakey (and is difficult to workaround). In this commit, we add a subscription interface so that these testing struggles can be addressed with a mock.
18 lines
549 B
Go
18 lines
549 B
Go
package subscribe
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// Subscription is an interface implemented by subscriptions to a server
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// providing updates.
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type Subscription interface {
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// Updates returns a read-only channel where the updates the client has
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// subscribed to will be delivered.
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Updates() <-chan interface{}
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// Quit is a channel that will be closed in case the server decides to
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// no longer deliver updates to this client.
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Quit() <-chan struct{}
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// Cancel should be called in case the client no longer wants to
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// subscribe for updates from the server.
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Cancel()
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}
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