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CocoaMQTTDeliverTests.swift
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CocoaMQTTDeliverTests.swift
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//
// CocoaMQTTDeliverTests.swift
// CocoaMQTT-Tests
//
// Created by JianBo on 2019/10/3.
// Copyright © 2019 emqtt.io. All rights reserved.
//
import XCTest
@testable import CocoaMQTT
class CocoaMQTTDeliverTests: XCTestCase {
override func setUp() {
// Put setup code here. This method is called before the invocation of each test method in the class.
}
override func tearDown() {
// Put teardown code here. This method is called after the invocation of each test method in the class.
}
func testSerialDeliver() {
let caller = Caller()
let deliver = CocoaMQTTDeliver()
let frames = [FramePublish(topic: "t/0", payload: [0x00], qos: .qos0),
FramePublish(topic: "t/1", payload: [0x01], qos: .qos1, msgid: 1),
FramePublish(topic: "t/2", payload: [0x02], qos: .qos2, msgid: 2)]
deliver.delegate = caller
for f in frames {
_ = deliver.add(f)
}
ms_sleep(100)
XCTAssertEqual(frames.count, caller.frames.count)
for i in 0 ..< frames.count {
assertEqual(frames[i], caller.frames[i])
}
}
func testAckMessage() {
let caller = Caller()
let deliver = CocoaMQTTDeliver()
let frames = [FramePublish(topic: "t/0", payload: [0x00], qos: .qos0),
FramePublish(topic: "t/1", payload: [0x01], qos: .qos1, msgid: 1),
FramePublish(topic: "t/2", payload: [0x02], qos: .qos2, msgid: 2)]
deliver.delegate = caller
for f in frames {
_ = deliver.add(f)
}
ms_sleep(100)
XCTAssertEqual(frames.count, caller.frames.count)
for i in 0 ..< frames.count {
assertEqual(frames[i], caller.frames[i])
}
var inflights = deliver.t_inflightFrames()
XCTAssertEqual(inflights.count, 2)
XCTAssertEqual(deliver.t_queuedFrames().count, 0)
for i in 0 ..< inflights.count {
assertEqual(inflights[i], frames[i+1])
}
deliver.ack(by: FramePubAck(msgid: 1))
deliver.ack(by: FramePubRec(msgid: 2))
ms_sleep(100)
inflights = deliver.t_inflightFrames()
XCTAssertEqual(inflights.count, 1)
XCTAssertEqual(deliver.t_queuedFrames().count, 0)
assertEqual(inflights[0], FramePubRel(msgid: 2))
deliver.ack(by: FramePubComp(msgid: 2))
ms_sleep(100)
inflights = deliver.t_inflightFrames()
XCTAssertEqual(inflights.count, 0)
// Assert sent
assertEqual(caller.frames[3], FramePubRel(msgid: 2))
}
func testQueueAndInflightReDeliver() {
let caller = Caller()
let deliver = CocoaMQTTDeliver()
let frames = [FramePublish(topic: "t/0", payload: [0x00], qos: .qos0),
FramePublish(topic: "t/1", payload: [0x01], qos: .qos1, msgid: 1),
FramePublish(topic: "t/2", payload: [0x02], qos: .qos2, msgid: 2)]
deliver.retryTimeInterval = 1000
deliver.inflightWindowSize = 1
deliver.mqueueSize = 1
deliver.delegate = caller
XCTAssertEqual(true, deliver.add(frames[1]))
ms_sleep(100) // Wait the message transfer to inflight-window
XCTAssertEqual(true, deliver.add(frames[2]))
XCTAssertEqual(false, deliver.add(frames[0]))
ms_sleep(1100) // Wait for re-delivering timeout
XCTAssertEqual(caller.frames.count, 2)
assertEqual(caller.frames[0], frames[1])
assertEqual(caller.frames[1], frames[1])
deliver.ack(by: FramePubAck(msgid: 1))
ms_sleep(100) // Waiting for the frame in the mqueue transfer to inflight window
var inflights = deliver.t_inflightFrames()
XCTAssertEqual(inflights.count, 1)
assertEqual(inflights[0], frames[2])
deliver.ack(by: FramePubRec(msgid: 2))
ms_sleep(2000) // Waiting for re-delivering timeout
deliver.ack(by: FramePubComp(msgid: 2))
ms_sleep(100)
inflights = deliver.t_inflightFrames()
XCTAssertEqual(inflights.count, 0)
let sents: [Frame] = [frames[1], frames[1], frames[2], FramePubRel(msgid: 2), FramePubRel(msgid: 2)]
XCTAssertEqual(caller.frames.count, sents.count)
for i in 0 ..< sents.count {
assertEqual(caller.frames[i], sents[i])
}
}
func testStorage() {
let clientID = "deliver-unit-testing"
let caller = Caller()
let deliver = CocoaMQTTDeliver()
let frames = [FramePublish(topic: "t/0", payload: [0x00], qos: .qos0),
FramePublish(topic: "t/1", payload: [0x01], qos: .qos1, msgid: 1),
FramePublish(topic: "t/2", payload: [0x02], qos: .qos2, msgid: 2)]
guard let storage = CocoaMQTTStorage(by: clientID) else {
XCTAssert(false, "Initial storage failed")
return
}
deliver.delegate = caller
deliver.recoverSessionBy(storage)
for f in frames {
_ = deliver.add(f)
}
var saved = storage.readAll()
XCTAssertEqual(saved.count, 2)
deliver.ack(by: FramePubAck(msgid: 1))
ms_sleep(100)
saved = storage.readAll()
XCTAssertEqual(saved.count, 1)
deliver.ack(by: FramePubRec(msgid: 2))
ms_sleep(100)
saved = storage.readAll()
XCTAssertEqual(saved.count, 1)
assertEqual(saved[0], FramePubRel(msgid: 2))
deliver.ack(by: FramePubComp(msgid: 2))
ms_sleep(100)
saved = storage.readAll()
XCTAssertEqual(saved.count, 0)
caller.reset()
_ = storage.write(frames[1])
deliver.recoverSessionBy(storage)
ms_sleep(100)
XCTAssertEqual(caller.frames.count, 1)
assertEqual(caller.frames[0], frames[1])
deliver.ack(by: FramePubAck(msgid: 1))
ms_sleep(100)
XCTAssertEqual(storage.readAll().count, 0)
}
func testTODO() {
// TODO: How to test large of messages combined qos0/qos1/qos2
}
// Helper for assert equality for Frame
private func assertEqual(_ f1: Frame, _ f2: Frame, _ lines: Int = #line) {
if let pub1 = f1 as? FramePublish,
let pub2 = f2 as? FramePublish {
XCTAssertEqual(pub1.topic, pub2.topic)
XCTAssertEqual(pub1.payload(), pub2.payload())
XCTAssertEqual(pub1.msgid, pub2.msgid)
XCTAssertEqual(pub1.qos, pub2.qos)
}
else if let rel1 = f1 as? FramePubRel,
let rel2 = f2 as? FramePubRel{
XCTAssertEqual(rel1.msgid, rel2.msgid)
} else {
XCTAssert(false, "Assert equal failed line: \(lines)")
}
}
private func ms_sleep(_ ms: Int) {
usleep(useconds_t(ms * 1000))
}
}
private class Caller: CocoaMQTTDeliverProtocol {
private let delegate_queue_key = DispatchSpecificKey<String>()
private let delegate_queue_val = "_custom_delegate_queue_"
var delegateQueue: DispatchQueue
var frames = [Frame]()
init() {
delegateQueue = DispatchQueue(label: "caller.deliver.test")
delegateQueue.setSpecific(key: delegate_queue_key, value: delegate_queue_val)
}
func reset() {
frames = []
}
func deliver(_ deliver: CocoaMQTTDeliver, wantToSend frame: Frame) {
assert_in_del_queue()
frames.append(frame)
}
private func assert_in_del_queue() {
XCTAssertEqual(delegate_queue_val, DispatchQueue.getSpecific(key: delegate_queue_key))
}
}