AsTestable converts a value into a Testable.

ListenCapture returns a middleware that captures the bind address for a net.Listener.

ListenReceive returns the first net.Addr received on a channel, typically previously passed to ListenCapture.

NewApp creates an *fxtest.App using the enclosing test.

NewErrApp creates an *fx.App which is expected to fail during construction.

MockAddr is a mocked net.Addr.

MockListener is a mocked net.Listener.

Testable is the minimal interface required for assertions and testing.