Created
October 25, 2019 10:13
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import XCTest | |
final class WeakSetTests: XCTestCase { | |
var subject: WeakSet<ThemeObserver>! | |
override func setUp() { | |
subject = [] | |
} | |
override func tearDown() { | |
subject = nil | |
} | |
func test_initLiteral_oneObject_subjectHasOneObject() { | |
let view = MockThemedView() | |
subject = [view] | |
XCTAssertEqual(subject.count, 1) | |
} | |
func test_initLiteral_oneObject_addSameObjectTwoTimes_subjectHasOneObject() { | |
let view = MockThemedView() | |
subject = [view, view] | |
XCTAssertEqual(subject.count, 1) | |
} | |
func test_initLiteral_oneObject_objectIsNil_subjectDoesntHoldObject_objectIsNil() { | |
var view: MockThemedView? = MockThemedView() | |
weak var weakView: MockThemedView? = view | |
subject = [view!] | |
view = nil | |
XCTAssertNil(weakView) | |
} | |
func test_initLiteral_oneObject_objectIsNil_accessViewFromSet_subjectDoesntHoldObject_obejctIsNil() { | |
var view: MockThemedView? = MockThemedView() | |
subject = [view!] | |
view = nil | |
XCTAssertNil(subject.allObjects.first) | |
} | |
func test_initLiteral_threeHundertFour_objectsAreNil_subjectDoesntHoldObjects_objectsAreNil() { | |
var mockViews: [MockThemedView]? = threeHundertFourViews() | |
subject = WeakSet(mockViews!) | |
mockViews = nil | |
XCTAssertNil(mockViews) | |
} | |
private func threeHundertFourViews() -> [MockThemedView] { | |
var views = [MockThemedView]() | |
for _ in 1 ... 304 { | |
views.append(MockThemedView()) | |
} | |
return views | |
} | |
} |
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