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SessionCallbackQueueTests.swift
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SessionCallbackQueueTests.swift
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import Foundation
import APIKit
import XCTest
class SessionCallbackQueueTests: XCTestCase {
var adapter: TestSessionAdapter!
var session: Session!
override func setUp() {
super.setUp()
adapter = TestSessionAdapter()
adapter.data = try! JSONSerialization.data(withJSONObject: ["key": "value"], options: [])
session = Session(adapter: adapter, callbackQueue: .main)
}
func testMain() {
let expectation = self.expectation(description: "wait for response")
let request = TestRequest()
session.send(request, callbackQueue: .main) { result in
XCTAssert(Thread.isMainThread)
expectation.fulfill()
}
waitForExpectations(timeout: 1.0, handler: nil)
}
func testSessionQueue() {
let expectation = self.expectation(description: "wait for response")
let request = TestRequest()
session.send(request, callbackQueue: .sessionQueue) { result in
// This depends on implementation of TestSessionAdapter
XCTAssert(Thread.isMainThread)
expectation.fulfill()
}
waitForExpectations(timeout: 1.0, handler: nil)
}
func testOperationQueue() {
let operationQueue = OperationQueue()
let expectation = self.expectation(description: "wait for response")
let request = TestRequest()
session.send(request, callbackQueue: .operationQueue(operationQueue)) { result in
XCTAssertEqual(OperationQueue.current, operationQueue)
expectation.fulfill()
}
waitForExpectations(timeout: 1.0, handler: nil)
}
func testDispatchQueue() {
let dispatchQueue = DispatchQueue.global(qos: .default)
let expectation = self.expectation(description: "wait for response")
let request = TestRequest()
session.send(request, callbackQueue: .dispatchQueue(dispatchQueue)) { result in
// There is no way to test current dispatch queue.
XCTAssert(!Thread.isMainThread)
expectation.fulfill()
}
waitForExpectations(timeout: 1.0, handler: nil)
}
// MARK: Test Session.callbackQueue
func testImplicitSessionCallbackQueue() {
let operationQueue = OperationQueue()
let session = Session(adapter: adapter, callbackQueue: .operationQueue(operationQueue))
let expectation = self.expectation(description: "wait for response")
let request = TestRequest()
session.send(request) { result in
XCTAssertEqual(OperationQueue.current, operationQueue)
expectation.fulfill()
}
waitForExpectations(timeout: 1.0, handler: nil)
}
func testExplicitSessionCallbackQueue() {
let operationQueue = OperationQueue()
let session = Session(adapter: adapter, callbackQueue: .operationQueue(operationQueue))
let expectation = self.expectation(description: "wait for response")
let request = TestRequest()
session.send(request, callbackQueue: nil) { result in
XCTAssertEqual(OperationQueue.current, operationQueue)
expectation.fulfill()
}
waitForExpectations(timeout: 1.0, handler: nil)
}
}