1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
// RUN: %target-run-simple-swift
// REQUIRES: executable_test
// REQUIRES: objc_interop
import StdlibUnittest
import Foundation
protocol P { }
protocol Q { }
class Supermodel : NSObject { }
class Model1 : Supermodel {
@objc dynamic var name = ""
}
class Model2 : NSObject, Q {
@objc dynamic var name = ""
}
extension Supermodel: P { }
var kvoContext = 0
class Observer: NSObject {
let model1 = Model1()
let model2 = Model2()
override init() {
super.init()
model1.addObserver(self, forKeyPath: "name", options: [], context: &kvoContext)
model2.addObserver(self, forKeyPath: "name", options: [], context: &kvoContext)
}
deinit {
model1.removeObserver(self, forKeyPath: "name")
model2.removeObserver(self, forKeyPath: "name")
}
}
let allTests = TestSuite("Dynamic subclasses conformance lookups")
allTests.test("Lookup via dynamic subclasses") {
let observer = Observer()
// Check via "AnyObject"
let model1obj: AnyObject = observer.model1
let model2obj: AnyObject = observer.model2
expectTrue(model1obj is P)
expectFalse(model1obj is Q)
expectFalse(model2obj is P)
expectTrue(model2obj is Q)
expectNotNil(model1obj as? P)
expectNil(model1obj as? Q)
expectNil(model2obj as? P)
expectNotNil(model2obj as? Q)
// Check via "Any"
let model1: Any = observer.model1
let model2: Any = observer.model2
expectTrue(model1 is P)
expectFalse(model1 is Q)
expectFalse(model2 is P)
expectTrue(model2 is Q)
expectNotNil(model1 as? P)
expectNil(model1 as? Q)
expectNil(model2 as? P)
expectNotNil(model2 as? Q)
print(model1)
print(model2)
}
runAllTests()
|
