Views memory leak tests

Views(Tests).swift

@testable import Quick
@testable import Nimble
@testable import Common
@testable import SpecLeaks

class ViewControllersTests: QuickSpec {
    override class func spec() {
        describe("My base represented views on common target...") {
            describe("call view events when your viewmodel subscribe your views events by .render(state:)") {
                it("must not leak") {
                    // given
                    let m  = MockViewItem()
                    let v1 = LeakTest { View1() }
                    let v2 = LeakTest { View2() }
                    let v3 = LeakTest { View3() }
                    let v4 = LeakTest { View4() }
                    // when
                    let events: (View4) -> ()  = { v in
                        v.didLoad { (v) in
                            v.render(state: .loading(m))
                        }.didAppear { v in
                            v.render(state: .loaded(m))
                        }.willAppear { v in
                            v.render(state: .reload(m))
                        }
                        
                        v.viewDidLoad()
                        v.viewDidAppear(true)
                        v.viewWillAppear(true)
                    }
                    // then
                    expect(v1).toNot(leak())
                    expect(v2).toNot(leak())
                    expect(v3).toNot(leak())
                    expect(v4).toNot(leak())
                    expect(v4).toNot(leakWhen(events))
                }
            }
        }
    }
}