Double call of subscribe disconnect the PubNub

[akuzminskyi]

Hi, is it expected behavior if we call pubNub.subscribe(to: "channel_id") twice the PubNub disconnects?

I'm using 7.0.0 SDK

[mohitordex]

Facing same issue on 7.0.0 SDK

[jguz-pubnub]

Hi @akuzminskyi, @mohitordex

Here's a unit test I wrote to reproduce your scenario. Is this what you meant?

func testSubscribeTheSameChannel() {
  let expectation = XCTestExpectation(description: "Test Subscribe Twice")
  expectation.assertForOverFulfill = true
  expectation.expectedFulfillmentCount = 2
  
  pubnub.onConnectionStateChange = { newStatus in
    switch newStatus {
    case .connecting:
      expectation.fulfill()
    case .connected:
      expectation.fulfill()
    default:
      XCTFail("Unexpected connection status")
    }
  }
  
  pubnub.subscribe(to: ["channel"])
  pubnub.subscribe(to: ["channel"])
  
  XCTAssertEqual(pubnub.subscribedChannels, ["channel"])
  wait(for: [expectation], timeout: 1)
}

[akuzminskyi]

@jguz-pubnub yes, looks like that.
try to add an assert after the subscribe lines

pubnub.subscribe(to: ["channel"])
pubnub.subscribe(to: ["channel"])
XCTAssertNotEqual(pubnub.connectionStatus, .disconnected)

[akuzminskyi]

@jguz-pubnub I see you marked it as a bug, can you please let us know from which version we have this issue? to understand the impact of the issue for companies that use the PubNub

[jguz-pubnub]

@akuzminskyi this issue occurs in the 7.0.0 version only. It happens if you subscribe to the channel that was already subscribed

[akuzminskyi]

I can confirm the issue is not happening anymore in 7.1.0 for me.