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URLProtocolTests.swift
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URLProtocolTests.swift
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//
// URLProtocolTests.swift
// BigBrotherTests
//
// Created by Marcelo Fabri on 01/01/15.
// Copyright (c) 2015 Marcelo Fabri. All rights reserved.
//
import UIKit
import XCTest
import BigBrother
import ObjectiveC
class URLProtocolTests: XCTestCase {
private var swizzledMethods: [(Method, Method)] = []
private func swizzleRegisterClass() {
let method: Method = class_getClassMethod(object_getClass(NSURLProtocol), #selector(NSURLProtocol.registerClass(_:)))
let swizzledMethod: Method = class_getClassMethod(object_getClass(NSURLProtocol), #selector(NSURLProtocol.bb_registerClass(_:)))
method_exchangeImplementations(method, swizzledMethod)
let tuple = (method, swizzledMethod)
swizzledMethods.append(tuple)
}
private func swizzleUnregisterClass() {
let method: Method = class_getClassMethod(object_getClass(NSURLProtocol), #selector(NSURLProtocol.unregisterClass(_:)))
let swizzledMethod: Method = class_getClassMethod(object_getClass(NSURLProtocol), #selector(NSURLProtocol.bb_unregisterClass(_:)))
method_exchangeImplementations(method, swizzledMethod)
let tuple = (method, swizzledMethod)
swizzledMethods.append(tuple)
}
override func setUp() {
super.setUp()
swizzleRegisterClass()
swizzleUnregisterClass()
}
override func tearDown() {
for tuple in swizzledMethods {
method_exchangeImplementations(tuple.0, tuple.1)
}
swizzledMethods = []
NSURLProtocol.unregisterClass(BigBrother.URLProtocol)
NSURLProtocol.registeredClasses = NSMutableArray()
super.tearDown()
}
func testAddToSessionConfiguration() {
let configuration = NSURLSessionConfiguration.defaultSessionConfiguration()
let previousNumberOfProtocols = configuration.protocolClasses?.count ?? 0
BigBrother.addToSessionConfiguration(configuration)
let numberOfProtocols = configuration.protocolClasses?.count ?? 0
XCTAssertEqual(numberOfProtocols, previousNumberOfProtocols + 1)
XCTAssertNotNil(configuration.protocolClasses)
let protocols = configuration.protocolClasses!
XCTAssertTrue(protocols.contains { $0 === BigBrother.URLProtocol.self } )
}
func testRemoveFromSessionConfiguration() {
let configuration = NSURLSessionConfiguration.defaultSessionConfiguration()
BigBrother.addToSessionConfiguration(configuration)
let previousNumberOfProtocols = configuration.protocolClasses?.count ?? 0
BigBrother.removeFromSessionConfiguration(configuration)
let numberOfProtocols = configuration.protocolClasses?.count ?? 0
XCTAssertEqual(numberOfProtocols, previousNumberOfProtocols - 1)
XCTAssertNotNil(configuration.protocolClasses)
let protocols = configuration.protocolClasses!
XCTAssertFalse(protocols.contains { $0 === BigBrother.URLProtocol.self } )
}
func testAddToSharedSession() {
let previousNumberOfProtocols = NSURLProtocol.registeredClasses.count
BigBrother.addToSharedSession()
let numberOfProtocols = NSURLProtocol.registeredClasses.count
XCTAssertEqual(numberOfProtocols, previousNumberOfProtocols + 1)
XCTAssertTrue(NSURLProtocol.registeredClasses.contains { $0 === BigBrother.URLProtocol.self } )
}
func testRemoveFromSharedSession() {
BigBrother.addToSharedSession()
let previousNumberOfProtocols = NSURLProtocol.registeredClasses.count
BigBrother.removeFromSharedSession()
let numberOfProtocols = NSURLProtocol.registeredClasses.count
XCTAssertEqual(numberOfProtocols, previousNumberOfProtocols - 1)
XCTAssertFalse(NSURLProtocol.registeredClasses.contains { $0 === BigBrother.URLProtocol.self } )
}
}
private var registeredClassesKey: UInt8 = 0
extension NSURLProtocol {
class var registeredClasses: NSMutableArray {
get {
return objc_getAssociatedObject(self, ®isteredClassesKey) as? NSMutableArray ?? NSMutableArray()
}
set(newValue) {
objc_setAssociatedObject(self, ®isteredClassesKey, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
}
}
class func bb_registerClass(protocolClass: AnyClass) -> Bool {
registeredClasses.addObject(protocolClass)
return bb_registerClass(protocolClass)
}
class func bb_unregisterClass(protocolClass: AnyClass) {
registeredClasses.removeObject(protocolClass)
bb_unregisterClass(protocolClass)
}
}