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// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
class TestNSSet : XCTestCase {
func test_BasicConstruction() {
let set = NSSet()
let set2 = NSSet(array: ["foo", "bar"])
XCTAssertEqual(set.count, 0)
XCTAssertEqual(set2.count, 2)
let set3 = NSMutableSet(capacity: 3)
set3.add(1)
set3.add("foo")
let set4 = NSSet(set: set3)
XCTAssertEqual(set3, set4)
set3.remove(1)
XCTAssertNotEqual(set3, set4)
let set5 = NSMutableSet(set: set3)
XCTAssertEqual(set5, set3)
set5.add(2)
XCTAssertNotEqual(set5, set3)
let set6 = NSSet(objects: "foo", "bar")
XCTAssertEqual(set6.count, 2)
XCTAssertEqual(set2, set6)
}
func testInitWithSet() {
let genres: Set<AnyHashable> = ["Rock", "Classical", "Hip hop"]
let set1 = NSSet(set: genres)
let set2 = NSSet(set: genres, copyItems: false)
XCTAssertEqual(set1.count, 3)
XCTAssertEqual(set2.count, 3)
XCTAssertEqual(set1, set2)
let set3 = NSSet(set: genres, copyItems: true)
XCTAssertEqual(set3.count, 3)
XCTAssertEqual(set3, set2)
}
func test_enumeration() {
let set = NSSet(array: ["foo", "bar", "baz"])
let e = set.objectEnumerator()
var result = Set<String>()
result.insert((e.nextObject()! as! String))
result.insert((e.nextObject()! as! String))
result.insert((e.nextObject()! as! String))
XCTAssertEqual(result, Set(["foo", "bar", "baz"]))
let empty = NSSet().objectEnumerator()
XCTAssertNil(empty.nextObject())
XCTAssertNil(empty.nextObject())
}
func test_sequenceType() {
let set = NSSet(array: ["foo", "bar", "baz"])
var res = Set<String>()
for obj in set {
res.insert((obj as! String))
}
XCTAssertEqual(res, Set(["foo", "bar", "baz"]))
}
func test_setOperations() {
let set = NSMutableSet(array: ["foo", "bar"])
set.union(["bar", "baz"])
XCTAssertTrue(set.isEqual(to: ["foo", "bar", "baz"]))
}
func test_equality() {
let inputArray1 = ["this", "is", "a", "test", "of", "equality", "with", "strings"]
let inputArray2 = ["this", "is", "a", "test", "of", "equality", "with", "objects"]
let set1 = NSSet(array: inputArray1)
let set2 = NSSet(array: inputArray1)
let set3 = NSSet(array: inputArray2)
XCTAssertTrue(set1 == set2)
XCTAssertTrue(set1.isEqual(set2))
XCTAssertTrue(set1.isEqual(to: Set(inputArray1)))
XCTAssertEqual(set1.hash, set2.hash)
XCTAssertEqual(set1.hashValue, set2.hashValue)
XCTAssertFalse(set1 == set3)
XCTAssertFalse(set1.isEqual(set3))
XCTAssertFalse(set1.isEqual(to: Set(inputArray2)))
XCTAssertFalse(set1.isEqual(nil))
XCTAssertFalse(set1.isEqual(NSObject()))
}
func test_copying() {
let inputArray = ["this", "is", "a", "test", "of", "copy", "with", "strings"]
let set = NSSet(array: inputArray)
let setCopy1 = set.copy() as! NSSet
XCTAssertTrue(set === setCopy1)
let setMutableCopy = set.mutableCopy() as! NSMutableSet
let setCopy2 = setMutableCopy.copy() as! NSSet
XCTAssertTrue(type(of: setCopy2) === NSSet.self)
XCTAssertFalse(setMutableCopy === setCopy2)
for entry in setCopy2 {
XCTAssertTrue(NSArray(array: setMutableCopy.allObjects).index(of: entry) != NSNotFound)
}
}
func test_mutableCopying() {
let inputArray = ["this", "is", "a", "test", "of", "mutableCopy", "with", "strings"]
let set = NSSet(array: inputArray)
let setMutableCopy1 = set.mutableCopy() as! NSMutableSet
XCTAssertTrue(type(of: setMutableCopy1) === NSMutableSet.self)
XCTAssertFalse(set === setMutableCopy1)
for entry in setMutableCopy1 {
XCTAssertTrue(NSArray(array: set.allObjects).index(of: entry) != NSNotFound)
}
let setMutableCopy2 = setMutableCopy1.mutableCopy() as! NSMutableSet
XCTAssertTrue(type(of: setMutableCopy2) === NSMutableSet.self)
XCTAssertFalse(setMutableCopy2 === setMutableCopy1)
for entry in setMutableCopy2 {
XCTAssertTrue(NSArray(array: setMutableCopy1.allObjects).index(of: entry) != NSNotFound)
}
}
func test_CountedSetBasicConstruction() {
let v1 = "v1"
let v2 = "v2"
let v3asv1 = "v1"
let set = NSCountedSet()
let set2 = NSCountedSet(array: [v1, v1, v2,v3asv1])
let set3 = NSCountedSet(set: [v1, v1, v2,v3asv1])
let set4 = NSCountedSet(capacity: 4)
XCTAssertEqual(set.count, 0)
XCTAssertEqual(set2.count, 2)
XCTAssertEqual(set3.count, 2)
XCTAssertEqual(set4.count, 0)
}
func test_CountedSetObjectCount() {
let v1 = "v1"
let v2 = "v2"
let v3asv1 = "v1"
let set = NSCountedSet()
let set2 = NSCountedSet(array: [v1, v1, v2,v3asv1])
let set3 = NSCountedSet(set: [v1, v1, v2,v3asv1])
XCTAssertEqual(set.count(for: v1), 0)
XCTAssertEqual(set2.count(for: v1), 3)
XCTAssertEqual(set2.count(for: v2), 1)
XCTAssertEqual(set2.count(for: v3asv1), 3)
XCTAssertEqual(set3.count(for: v1), 1)
XCTAssertEqual(set3.count(for: v2), 1)
XCTAssertEqual(set3.count(for: v3asv1), 1)
}
func test_CountedSetAddObject() {
let v1 = "v1"
let v2 = "v2"
let v3asv1 = "v1"
let set = NSCountedSet(array: [v1, v1, v2])
XCTAssertEqual(set.count(for: v1), 2)
XCTAssertEqual(set.count(for: v2), 1)
set.add(v3asv1)
XCTAssertEqual(set.count(for: v1), 3)
set.addObjects(from: [v1,v2])
XCTAssertEqual(set.count(for: v1), 4)
XCTAssertEqual(set.count(for: v2), 2)
}
func test_CountedSetRemoveObject() {
let v1 = "v1"
let v2 = "v2"
let set = NSCountedSet(array: [v1, v1, v2])
XCTAssertEqual(set.count(for: v1), 2)
XCTAssertEqual(set.count(for: v2), 1)
set.remove(v2)
XCTAssertEqual(set.count(for: v2), 0)
XCTAssertEqual(set.count(for: v1), 2)
set.remove(v2)
XCTAssertEqual(set.count(for: v2), 0)
XCTAssertEqual(set.count(for: v1), 2)
set.removeAllObjects()
XCTAssertEqual(set.count(for: v2), 0)
XCTAssertEqual(set.count(for: v1), 0)
}
func test_CountedSetCopying() {
let inputArray = ["this", "is", "a", "test", "of", "copy", "with", "strings"]
let set = NSCountedSet(array: inputArray)
let setCopy = set.copy() as! NSCountedSet
XCTAssertFalse(set === setCopy)
let setMutableCopy = set.mutableCopy() as! NSCountedSet
XCTAssertFalse(set === setMutableCopy)
XCTAssertTrue(type(of: setCopy) === NSCountedSet.self)
XCTAssertTrue(type(of: setMutableCopy) === NSCountedSet.self)
for entry in setCopy {
XCTAssertTrue(NSArray(array: setMutableCopy.allObjects).index(of: entry) != NSNotFound)
}
}
func test_mutablesetWithDictionary() {
let aSet = NSMutableSet()
let dictionary = NSMutableDictionary()
let key = NSString(string: "Hello")
aSet.add(["world": "again"])
dictionary.setObject(aSet, forKey: key)
XCTAssertNotNil(dictionary.description) //should not crash
}
func test_Subsets() {
let set = NSSet(array: ["foo", "bar", "baz"])
let otherSet = NSSet(array: ["foo", "bar"])
let otherOtherSet = Set<AnyHashable>(["foo", "bar", "baz", "123"])
let newSet = Set<AnyHashable>(["foo", "bin"])
XCTAssert(otherSet.isSubset(of: set as! Set<AnyHashable>))
XCTAssertFalse(set.isSubset(of: otherSet as! Set<AnyHashable>))
XCTAssert(set.isSubset(of: otherOtherSet))
XCTAssert(otherSet.isSubset(of: otherOtherSet))
XCTAssertFalse(newSet.isSubset(of: otherSet as! Set<AnyHashable>))
}
func test_description() {
let array = NSArray(array: ["array_element1", "arrayElement2", "", "!@#$%^&*()", "a+b"])
let dictionary = NSDictionary(dictionary: ["key1": "value1", "key2": "value2"])
let innerSet = NSSet(array: [4444, 5555])
let set: NSSet = NSSet(array: [array, dictionary, innerSet, 1111, 2222, 3333])
let description = NSString(string: set.description)
XCTAssertTrue(description.hasPrefix("{("))
XCTAssertTrue(description.hasSuffix(")}"))
XCTAssertTrue(description.contains(" (\n \"array_element1\",\n arrayElement2,\n \"\",\n \"!@#$%^&*()\",\n \"a+b\"\n )"))
XCTAssertTrue(description.contains(" key1 = value1"))
XCTAssertTrue(description.contains(" key2 = value2"))
XCTAssertTrue(description.contains(" 4444"))
XCTAssertTrue(description.contains(" 5555"))
XCTAssertTrue(description.contains(" 1111"))
XCTAssertTrue(description.contains(" 2222"))
XCTAssertTrue(description.contains(" 3333"))
}
let setFixtures = [
Fixtures.setOfNumbers,
Fixtures.setEmpty,
]
let mutableSetFixtures = [
Fixtures.mutableSetOfNumbers,
Fixtures.mutableSetEmpty,
]
let countedSetFixtures = [
Fixtures.countedSetOfNumbersAppearingOnce,
Fixtures.countedSetOfNumbersAppearingSeveralTimes,
Fixtures.countedSetEmpty,
]
func test_codingRoundtrip() throws {
for fixture in setFixtures {
try fixture.assertValueRoundtripsInCoder()
}
for fixture in mutableSetFixtures {
try fixture.assertValueRoundtripsInCoder()
}
for fixture in countedSetFixtures {
try fixture.assertValueRoundtripsInCoder()
}
}
func test_loadedValuesMatch() throws {
for fixture in setFixtures {
try fixture.assertLoadedValuesMatch()
}
for fixture in mutableSetFixtures {
try fixture.assertLoadedValuesMatch()
}
for fixture in countedSetFixtures {
try fixture.assertLoadedValuesMatch()
}
}
}
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