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CheckRangeReplaceableCollectionType.swift
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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2020 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
import StdlibUnittest
// A minimal RRC conformance, to test default implementations with
public struct NaiveRRC : RangeReplaceableCollection, ExpressibleByArrayLiteral {
// we're trying to move away from calling reserveCapacity inside most mutating
// methods, this will let us verify that we don't
internal var allowReserveCapacity = true
var storage:[Int] = []
public init() {}
public init(arrayLiteral elements: Element...) {
storage.append(contentsOf: elements)
}
public func index(after i: Int) -> Int {
i + 1
}
public func index(before i: Int) -> Int {
i - 1
}
public var startIndex: Int {
0
}
public var endIndex: Int {
count
}
public var count: Int {
storage.count
}
public subscript(position: Int) -> Int {
get {
storage[position]
}
set(newValue) {
storage[position] = newValue
}
}
public mutating func replaceSubrange(_ subrange: Range<Int>, with newElements: some Collection<Int>) {
storage.replaceSubrange(subrange, with: newElements)
}
public mutating func reserveCapacity(_ n: Int) {
precondition(allowReserveCapacity)
storage.reserveCapacity(n)
}
}
internal enum IndexSelection {
case start
case middle
case end
case last
internal func index<C : Collection>(in c: C) -> C.Index {
switch self {
case .start: return c.startIndex
case .middle: return c.index(c.startIndex, offsetBy: c.count / 2)
case .end: return c.endIndex
case .last: return c.index(c.startIndex, offsetBy: c.count - 1)
}
}
}
public struct ReplaceSubrangeTest<C: RangeReplaceableCollection> where C.Element == Int {
public let collection: [OpaqueValue<Int>]
public let newElements: [OpaqueValue<Int>]
public let rangeSelection: RangeSelection
public let expected: C
public let closedExpected: C? // Expected array for closed ranges
public let loc: SourceLoc
internal init(
collection: some RangeReplaceableCollection<Int>,
newElements: some Collection<Int>,
rangeSelection: RangeSelection, expected: C, closedExpected: C? = nil,
file: String = #file, line: UInt = #line
) {
self.collection = collection.map(OpaqueValue.init)
self.newElements = newElements.map(OpaqueValue.init)
self.rangeSelection = rangeSelection
self.expected = expected
self.closedExpected = closedExpected
self.loc = SourceLoc(file, line, comment: "replaceSubrange() test data")
}
}
internal struct AppendTest<C: RangeReplaceableCollection> where C.Element == Int {
let collection: [OpaqueValue<Int>]
let newElement: OpaqueValue<Int>
let expected: C
let loc: SourceLoc
internal init(
collection: some RangeReplaceableCollection<Int>,
newElement: Int, expected: C,
file: String = #file, line: UInt = #line
) {
self.collection = collection.map(OpaqueValue.init)
self.newElement = OpaqueValue(newElement)
self.expected = expected
self.loc = SourceLoc(file, line, comment: "append() test data")
}
}
internal struct AppendContentsOfTest<C: RangeReplaceableCollection> where C.Element == Int {
let collection: [OpaqueValue<Int>]
let newElements: [OpaqueValue<Int>]
let expected: C
let loc: SourceLoc
internal init(
collection: some RangeReplaceableCollection<Int>,
newElements: some RangeReplaceableCollection<Int>, expected: C,
file: String = #file, line: UInt = #line
) {
self.collection = collection.map(OpaqueValue.init)
self.newElements = newElements.map(OpaqueValue.init)
self.expected = expected
self.loc = SourceLoc(file, line, comment: "append() test data")
}
}
internal struct InsertTest<C: RangeReplaceableCollection> where C.Element == Int {
let collection: [OpaqueValue<Int>]
let newElement: OpaqueValue<Int>
let indexSelection: IndexSelection
let expected: C
let loc: SourceLoc
internal init(
collection: some RangeReplaceableCollection<Int>,
newElement: Int, indexSelection: IndexSelection,
expected: C, file: String = #file, line: UInt = #line
) {
self.collection = collection.map(OpaqueValue.init)
self.newElement = OpaqueValue(newElement)
self.indexSelection = indexSelection
self.expected = expected
self.loc = SourceLoc(file, line, comment: "insert() test data")
}
}
internal struct InsertContentsOfTest<C: RangeReplaceableCollection> where C.Element == Int {
let collection: [OpaqueValue<Int>]
let newElements: [OpaqueValue<Int>]
let indexSelection: IndexSelection
let expected: C
let loc: SourceLoc
internal init(
collection: some RangeReplaceableCollection<Int>,
newElements: some RangeReplaceableCollection<Int>,
indexSelection: IndexSelection,
expected: C, file: String = #file, line: UInt = #line
) {
self.collection = collection.map(OpaqueValue.init)
self.newElements = newElements.map(OpaqueValue.init)
self.indexSelection = indexSelection
self.expected = expected
self.loc = SourceLoc(file, line, comment: "insert(contentsOf:at:) test data")
}
}
internal struct RemoveAtIndexTest<C: RangeReplaceableCollection> where C.Element == Int {
let collection: [OpaqueValue<Int>]
let indexSelection: IndexSelection
let expectedRemovedElement: Int
let expectedCollection: C
let loc: SourceLoc
internal init(
collection: some RangeReplaceableCollection<Int>,
indexSelection: IndexSelection, expectedRemovedElement: Int,
expectedCollection: C, file: String = #file, line: UInt = #line
) {
self.collection = collection.map(OpaqueValue.init)
self.indexSelection = indexSelection
self.expectedRemovedElement = expectedRemovedElement
self.expectedCollection = expectedCollection
self.loc = SourceLoc(file, line, comment: "remove(at:) test data")
}
}
internal struct RemoveLastNTest<C: RangeReplaceableCollection> where C.Element == Int {
let collection: [OpaqueValue<Int>]
let numberToRemove: Int
let expectedCollection: C
let loc: SourceLoc
internal init(
collection: some RangeReplaceableCollection<Int>,
numberToRemove: Int, expectedCollection: C,
file: String = #file, line: UInt = #line
) {
self.collection = collection.map(OpaqueValue.init)
self.numberToRemove = numberToRemove
self.expectedCollection = expectedCollection
self.loc = SourceLoc(file, line, comment: "removeLast(n: Int) test data")
}
}
public struct RemoveSubrangeTest<C: RangeReplaceableCollection> where C.Element == Int {
public let collection: [OpaqueValue<Int>]
public let rangeSelection: RangeSelection
public let expected: C
public let loc: SourceLoc
internal init(
collection: some RangeReplaceableCollection<Int>,
rangeSelection: RangeSelection, expected: C,
file: String = #file, line: UInt = #line
) {
self.collection = collection.map(OpaqueValue.init)
self.rangeSelection = rangeSelection
self.expected = expected
self.loc = SourceLoc(file, line, comment: "removeSubrange() test data")
}
}
internal struct RemoveAllTest<C: RangeReplaceableCollection> where C.Element == Int {
let collection: [OpaqueValue<Int>]
let expected: C
let loc: SourceLoc
internal init(
collection: some RangeReplaceableCollection<Int>, expected: C,
file: String = #file, line: UInt = #line
) {
self.collection = collection.map(OpaqueValue.init)
self.expected = expected
self.loc = SourceLoc(file, line, comment: "removeAll() test data")
}
}
internal struct ReserveCapacityTest {
let collection: [OpaqueValue<Int>]
let requestedCapacity: Int
let loc: SourceLoc
internal init(
collection: some RangeReplaceableCollection<Int>, requestedCapacity: Int,
file: String = #file, line: UInt = #line
) {
self.collection = collection.map(OpaqueValue.init)
self.requestedCapacity = requestedCapacity
self.loc = SourceLoc(file, line, comment: "removeAll() test data")
}
}
internal struct OperatorPlusTest<C: RangeReplaceableCollection> where C.Element == Int {
let lhs: [OpaqueValue<Int>]
let rhs: [OpaqueValue<Int>]
let expected: C
let loc: SourceLoc
internal init(
lhs: some RangeReplaceableCollection<Int>,
rhs: some RangeReplaceableCollection<Int>,
expected: C,
file: String = #file, line: UInt = #line
) {
self.lhs = lhs.map(OpaqueValue.init)
self.rhs = rhs.map(OpaqueValue.init)
self.expected = expected
self.loc = SourceLoc(file, line, comment: "`func +` test data")
}
}
let removeLastTests: [RemoveLastNTest] = [
RemoveLastNTest(
collection: [1010],
numberToRemove: 0,
expectedCollection: [1010]
),
RemoveLastNTest(
collection: [1010],
numberToRemove: 1,
expectedCollection: []
),
RemoveLastNTest(
collection: [1010, 2020, 3030, 4040, 5050],
numberToRemove: 0,
expectedCollection: [1010, 2020, 3030, 4040, 5050]
),
RemoveLastNTest(
collection: [1010, 2020, 3030, 4040, 5050],
numberToRemove: 1,
expectedCollection: [1010, 2020, 3030, 4040]
),
RemoveLastNTest(
collection: [1010, 2020, 3030, 4040, 5050],
numberToRemove: 2,
expectedCollection: [1010, 2020, 3030]
),
RemoveLastNTest(
collection: [1010, 2020, 3030, 4040, 5050],
numberToRemove: 3,
expectedCollection: [1010, 2020]
),
RemoveLastNTest(
collection: [1010, 2020, 3030, 4040, 5050],
numberToRemove: 4,
expectedCollection: [1010]
),
RemoveLastNTest(
collection: [1010, 2020, 3030, 4040, 5050],
numberToRemove: 5,
expectedCollection: []
),
RemoveLastNTest(
collection: [1010] as NaiveRRC,
numberToRemove: 0,
expectedCollection: [1010] as NaiveRRC
),
RemoveLastNTest(
collection: [1010] as NaiveRRC,
numberToRemove: 1,
expectedCollection: [] as NaiveRRC
),
RemoveLastNTest(
collection: [1010, 2020, 3030, 4040, 5050] as NaiveRRC,
numberToRemove: 0,
expectedCollection: [1010, 2020, 3030, 4040, 5050] as NaiveRRC
),
RemoveLastNTest(
collection: [1010, 2020, 3030, 4040, 5050] as NaiveRRC,
numberToRemove: 1,
expectedCollection: [1010, 2020, 3030, 4040] as NaiveRRC
),
RemoveLastNTest(
collection: [1010, 2020, 3030, 4040, 5050] as NaiveRRC,
numberToRemove: 2,
expectedCollection: [1010, 2020, 3030] as NaiveRRC
),
RemoveLastNTest(
collection: [1010, 2020, 3030, 4040, 5050] as NaiveRRC,
numberToRemove: 3,
expectedCollection: [1010, 2020] as NaiveRRC
),
RemoveLastNTest(
collection: [1010, 2020, 3030, 4040, 5050] as NaiveRRC,
numberToRemove: 4,
expectedCollection: [1010] as NaiveRRC
),
RemoveLastNTest(
collection: [1010, 2020, 3030, 4040, 5050] as NaiveRRC,
numberToRemove: 5,
expectedCollection: [] as NaiveRRC
),
]
let appendContentsOfTests: [AppendContentsOfTest] = [
AppendContentsOfTest(
collection: [],
newElements: [],
expected: []),
AppendContentsOfTest(
collection: [1010],
newElements: [],
expected: [1010]),
AppendContentsOfTest(
collection: [1010, 2020, 3030, 4040],
newElements: [],
expected: [1010, 2020, 3030, 4040]),
AppendContentsOfTest(
collection: [],
newElements: [1010],
expected: [1010]),
AppendContentsOfTest(
collection: [1010],
newElements: [2020],
expected: [1010, 2020]),
AppendContentsOfTest(
collection: [1010],
newElements: [2020, 3030, 4040],
expected: [1010, 2020, 3030, 4040]),
AppendContentsOfTest(
collection: [1010, 2020, 3030, 4040],
newElements: [5050, 6060, 7070, 8080],
expected: [1010, 2020, 3030, 4040, 5050, 6060, 7070, 8080]),
// NaiveRRC doesn't implement withContiguousStorageIfAvailable, so this tests discontiguous appendees
AppendContentsOfTest(
collection: [] as NaiveRRC,
newElements: [] as NaiveRRC,
expected: [] as NaiveRRC),
AppendContentsOfTest(
collection: [1010] as NaiveRRC,
newElements: [] as NaiveRRC,
expected: [1010] as NaiveRRC),
AppendContentsOfTest(
collection: [1010, 2020, 3030, 4040] as NaiveRRC,
newElements: [] as NaiveRRC,
expected: [1010, 2020, 3030, 4040] as NaiveRRC),
AppendContentsOfTest(
collection: [] as NaiveRRC,
newElements: [1010] as NaiveRRC,
expected: [1010] as NaiveRRC),
AppendContentsOfTest(
collection: [1010] as NaiveRRC,
newElements: [2020] as NaiveRRC,
expected: [1010, 2020] as NaiveRRC),
AppendContentsOfTest(
collection: [1010] as NaiveRRC,
newElements: [2020, 3030, 4040] as NaiveRRC,
expected: [1010, 2020, 3030, 4040] as NaiveRRC),
AppendContentsOfTest(
collection: [1010, 2020, 3030, 4040] as NaiveRRC,
newElements: [5050, 6060, 7070, 8080] as NaiveRRC,
expected: [1010, 2020, 3030, 4040, 5050, 6060, 7070, 8080] as NaiveRRC),
// Here we use Array to catch the contiguous cases
AppendContentsOfTest(
collection: [] as NaiveRRC,
newElements: [],
expected: [] as NaiveRRC),
AppendContentsOfTest(
collection: [1010] as NaiveRRC,
newElements: [],
expected: [1010] as NaiveRRC),
AppendContentsOfTest(
collection: [1010, 2020, 3030, 4040] as NaiveRRC,
newElements: [],
expected: [1010, 2020, 3030, 4040] as NaiveRRC),
AppendContentsOfTest(
collection: [] as NaiveRRC,
newElements: [1010],
expected: [1010] as NaiveRRC),
AppendContentsOfTest(
collection: [1010] as NaiveRRC,
newElements: [2020],
expected: [1010, 2020] as NaiveRRC),
AppendContentsOfTest(
collection: [1010] as NaiveRRC,
newElements: [2020, 3030, 4040],
expected: [1010, 2020, 3030, 4040] as NaiveRRC),
AppendContentsOfTest(
collection: [1010, 2020, 3030, 4040] as NaiveRRC,
newElements: [5050, 6060, 7070, 8080],
expected: [1010, 2020, 3030, 4040, 5050, 6060, 7070, 8080] as NaiveRRC),
]
// Also used in RangeReplaceable.swift.gyb to test `replaceSubrange()`
// overloads with the countable range types.
public let replaceRangeTests: [ReplaceSubrangeTest] = [
ReplaceSubrangeTest(
collection: [],
newElements: [],
rangeSelection: .emptyRange,
expected: []),
ReplaceSubrangeTest(
collection: [],
newElements: [1010],
rangeSelection: .emptyRange,
expected: [1010]),
ReplaceSubrangeTest(
collection: [],
newElements: [1010, 2020, 3030],
rangeSelection: .emptyRange,
expected: [1010, 2020, 3030]),
ReplaceSubrangeTest(
collection: [4040],
newElements: [1010, 2020, 3030],
rangeSelection: .leftEdge,
expected: [1010, 2020, 3030, 4040],
closedExpected: [1010, 2020, 3030]),
ReplaceSubrangeTest(
collection: [1010, 2020, 3030],
newElements: [4040],
rangeSelection: .leftEdge,
expected: [4040, 1010, 2020, 3030],
closedExpected: [4040, 2020, 3030]),
ReplaceSubrangeTest(
collection: [1010],
newElements: [2020, 3030, 4040],
rangeSelection: .rightEdge,
expected: [1010, 2020, 3030, 4040],
closedExpected: [2020, 3030, 4040]),
ReplaceSubrangeTest(
collection: [1010, 2020, 3030],
newElements: [4040],
rangeSelection: .rightEdge,
expected: [1010, 2020, 3030, 4040],
closedExpected: [1010, 2020, 4040]),
ReplaceSubrangeTest(
collection: [1010, 2020, 3030, 4040, 5050],
newElements: [9090],
rangeSelection: .offsets(1, 1),
expected: [1010, 9090, 2020, 3030, 4040, 5050],
closedExpected: [1010, 9090, 3030, 4040, 5050]),
ReplaceSubrangeTest(
collection: [1010, 2020, 3030, 4040, 5050],
newElements: [9090],
rangeSelection: .offsets(1, 2),
expected: [1010, 9090, 3030, 4040, 5050],
closedExpected: [1010, 9090, 4040, 5050]),
ReplaceSubrangeTest(
collection: [1010, 2020, 3030, 4040, 5050],
newElements: [9090],
rangeSelection: .offsets(1, 3),
expected: [1010, 9090, 4040, 5050],
closedExpected: [1010, 9090, 5050]),
ReplaceSubrangeTest(
collection: [1010, 2020, 3030, 4040, 5050],
newElements: [9090],
rangeSelection: .offsets(1, 4),
expected: [1010, 9090, 5050],
closedExpected: [1010, 9090]),
ReplaceSubrangeTest(
collection: [1010, 2020, 3030, 4040, 5050],
newElements: [9090],
rangeSelection: .offsets(1, 5),
expected: [1010, 9090]),
ReplaceSubrangeTest(
collection: [1010, 2020, 3030],
newElements: [8080, 9090],
rangeSelection: .offsets(1, 2),
expected: [1010, 8080, 9090, 3030],
closedExpected: [1010, 8080, 9090]),
//replaceSubrange is the protocol requirement, so we don't test NaiveRRC here
]
public let removeRangeTests: [RemoveSubrangeTest] = [
RemoveSubrangeTest(
collection: [],
rangeSelection: .emptyRange,
expected: []),
RemoveSubrangeTest(
collection: [1010],
rangeSelection: .middle,
expected: []),
RemoveSubrangeTest(
collection: [1010, 2020, 3030, 4040],
rangeSelection: .leftHalf,
expected: [3030, 4040]),
RemoveSubrangeTest(
collection: [1010, 2020, 3030, 4040],
rangeSelection: .rightHalf,
expected: [1010, 2020]),
RemoveSubrangeTest(
collection: [1010, 2020, 3030, 4040, 5050],
rangeSelection: .middle,
expected: [1010, 5050]),
RemoveSubrangeTest(
collection: [1010, 2020, 3030, 4040, 5050, 6060],
rangeSelection: .leftHalf,
expected: [4040, 5050, 6060]),
RemoveSubrangeTest(
collection: [1010, 2020, 3030, 4040, 5050, 6060],
rangeSelection: .rightHalf,
expected: [1010, 2020, 3030]),
RemoveSubrangeTest(
collection: [1010, 2020, 3030, 4040, 5050, 6060],
rangeSelection: .middle,
expected: [1010, 6060]),
RemoveSubrangeTest(
collection: [] as NaiveRRC,
rangeSelection: .emptyRange,
expected: [] as NaiveRRC),
RemoveSubrangeTest(
collection: [1010] as NaiveRRC,
rangeSelection: .middle,
expected: [] as NaiveRRC),
RemoveSubrangeTest(
collection: [1010, 2020, 3030, 4040] as NaiveRRC,
rangeSelection: .leftHalf,
expected: [3030, 4040] as NaiveRRC),
RemoveSubrangeTest(
collection: [1010, 2020, 3030, 4040] as NaiveRRC,
rangeSelection: .rightHalf,
expected: [1010, 2020] as NaiveRRC),
RemoveSubrangeTest(
collection: [1010, 2020, 3030, 4040, 5050] as NaiveRRC,
rangeSelection: .middle,
expected: [1010, 5050] as NaiveRRC),
RemoveSubrangeTest(
collection: [1010, 2020, 3030, 4040, 5050, 6060] as NaiveRRC,
rangeSelection: .leftHalf,
expected: [4040, 5050, 6060] as NaiveRRC),
RemoveSubrangeTest(
collection: [1010, 2020, 3030, 4040, 5050, 6060] as NaiveRRC,
rangeSelection: .rightHalf,
expected: [1010, 2020, 3030] as NaiveRRC),
RemoveSubrangeTest(
collection: [1010, 2020, 3030, 4040, 5050, 6060] as NaiveRRC,
rangeSelection: .middle,
expected: [1010, 6060] as NaiveRRC),
]
extension TestSuite {
/// Adds a set of tests for `RangeReplaceableCollection`.
///
/// - parameter makeCollection: a factory function that creates a collection
/// instance with provided elements.
///
/// This facility can be used to test collection instances that can't be
/// constructed using APIs in the protocol (for example, `Array`s that wrap
/// `NSArray`s).
public func addRangeReplaceableCollectionTests<
C : RangeReplaceableCollection,
CollectionWithEquatableElement : RangeReplaceableCollection
>(
_ testNamePrefix: String = "",
makeCollection: @escaping ([C.Element]) -> C,
wrapValue: @escaping (OpaqueValue<Int>) -> C.Element,
extractValue: @escaping (C.Element) -> OpaqueValue<Int>,
makeCollectionOfEquatable: @escaping ([CollectionWithEquatableElement.Element]) -> CollectionWithEquatableElement,
wrapValueIntoEquatable: @escaping (MinimalEquatableValue) -> CollectionWithEquatableElement.Element,
extractValueFromEquatable: @escaping ((CollectionWithEquatableElement.Element) -> MinimalEquatableValue),
resiliencyChecks: CollectionMisuseResiliencyChecks = .all,
outOfBoundsIndexOffset: Int = 1,
collectionIsBidirectional: Bool = false
) where
CollectionWithEquatableElement.Element : Equatable {
var testNamePrefix = testNamePrefix
if !checksAdded.insert(
"\(testNamePrefix).\(C.self).\(#function)"
).inserted {
return
}
addCollectionTests(
testNamePrefix,
makeCollection: makeCollection,
wrapValue: wrapValue,
extractValue: extractValue,
makeCollectionOfEquatable: makeCollectionOfEquatable,
wrapValueIntoEquatable: wrapValueIntoEquatable,
extractValueFromEquatable: extractValueFromEquatable,
resiliencyChecks: resiliencyChecks,
outOfBoundsIndexOffset: outOfBoundsIndexOffset,
collectionIsBidirectional: collectionIsBidirectional
)
func makeWrappedCollection(_ elements: [OpaqueValue<Int>]) -> C {
return makeCollection(elements.map(wrapValue))
}
testNamePrefix += String(describing: C.Type.self)
//===----------------------------------------------------------------------===//
// init()
//===----------------------------------------------------------------------===//
self.test("\(testNamePrefix).init()/semantics") {
let c = C()
expectEqualSequence([], c.map { extractValue($0).value })
}
//===----------------------------------------------------------------------===//
// init(Sequence)
//===----------------------------------------------------------------------===//
self.test("\(testNamePrefix).init(Sequence)/semantics") {
for test in appendContentsOfTests {
let c = C(test.newElements.map(wrapValue))
expectEqualSequence(
test.newElements.map { $0.value },
c.map { extractValue($0).value },
stackTrace: SourceLocStack().with(test.loc))
}
}
//===----------------------------------------------------------------------===//
// replaceSubrange()
//===----------------------------------------------------------------------===//
self.test("\(testNamePrefix).replaceSubrange()/range/semantics") {
for test in replaceRangeTests {
var c = makeWrappedCollection(test.collection)
let rangeToReplace = test.rangeSelection.range(in: c)
let newElements =
MinimalCollection(elements: test.newElements.map(wrapValue))
c.replaceSubrange(rangeToReplace, with: newElements)
expectEqualSequence(
test.expected,
c.map { extractValue($0).value },
stackTrace: SourceLocStack().with(test.loc))
}
}
self.test("\(testNamePrefix).replaceSubrange()/closedRange/semantics") {
for test in replaceRangeTests {
guard let closedExpected = test.closedExpected else { continue }
var c = makeWrappedCollection(test.collection)
let rangeToReplace = test.rangeSelection.closedRange(in: c)
let newElements = makeWrappedCollection(test.newElements)
c.replaceSubrange(rangeToReplace, with: newElements)
expectEqualSequence(
closedExpected,
c.map { extractValue($0).value },
stackTrace: SourceLocStack().with(test.loc))
}
}
//===----------------------------------------------------------------------===//
// append()
//===----------------------------------------------------------------------===//
self.test("\(testNamePrefix).append()/semantics") {
let tests: [AppendTest] = [
AppendTest(
collection: [],
newElement: 1010,
expected: [1010]),
AppendTest(
collection: [1010],
newElement: 2020,
expected: [1010, 2020]),
AppendTest(
collection: [1010, 2020, 3030, 4040, 5050, 6060, 7070],
newElement: 8080,
expected: [1010, 2020, 3030, 4040, 5050, 6060, 7070, 8080]),
]
for test in tests {
var c = makeWrappedCollection(test.collection)
let newElement = wrapValue(test.newElement)
c.append(newElement)
expectEqualSequence(
test.expected,
c.map { extractValue($0).value },
stackTrace: SourceLocStack().with(test.loc))
}
}
//===----------------------------------------------------------------------===//
// append(contentsOf:)
//===----------------------------------------------------------------------===//
self.test("\(testNamePrefix).append(contentsOf:)/semantics") {
for test in appendContentsOfTests {
var c = makeWrappedCollection(test.collection)
let newElements =
MinimalCollection(elements: test.newElements.map(wrapValue))
c.append(contentsOf: newElements)
expectEqualSequence(
test.expected,
c.map { extractValue($0).value },
stackTrace: SourceLocStack().with(test.loc))
}
}
self.test("\(testNamePrefix).OperatorPlusEquals") {
for test in appendContentsOfTests {
var c = makeWrappedCollection(test.collection)
let newElements =
MinimalCollection(elements: test.newElements.map(wrapValue))
c += newElements
expectEqualSequence(
test.expected,
c.map { extractValue($0).value },
stackTrace: SourceLocStack().with(test.loc))
}
}
//===----------------------------------------------------------------------===//
// insert()
//===----------------------------------------------------------------------===//
self.test("\(testNamePrefix).insert()/semantics") {
let tests: [InsertTest] = [
InsertTest(
collection: [],
newElement: 1010,
indexSelection: IndexSelection.start,
expected: [1010]),
InsertTest(
collection: [2020],
newElement: 1010,
indexSelection: .start,
expected: [1010, 2020]),
InsertTest(
collection: [1010],
newElement: 2020,
indexSelection: .end,
expected: [1010, 2020]),
InsertTest(
collection: [2020, 3030, 4040, 5050],
newElement: 1010,
indexSelection: .start,
expected: [1010, 2020, 3030, 4040, 5050]),
InsertTest(
collection: [1010, 2020, 3030, 4040],
newElement: 5050,
indexSelection: .end,
expected: [1010, 2020, 3030, 4040, 5050]),
InsertTest(
collection: [1010, 2020, 4040, 5050],
newElement: 3030,
indexSelection: .middle,
expected: [1010, 2020, 3030, 4040, 5050]),
]
for test in tests {
var c = makeWrappedCollection(test.collection)
let newElement = wrapValue(test.newElement)
c.insert(newElement, at: test.indexSelection.index(in: c))
expectEqualSequence(
test.expected,
c.map { extractValue($0).value },
stackTrace: SourceLocStack().with(test.loc))
}
}
//===----------------------------------------------------------------------===//
// insert(contentsOf:at:)
//===----------------------------------------------------------------------===//
self.test("\(testNamePrefix).insert(contentsOf:at:)/semantics") {
let tests: [InsertContentsOfTest] = [
InsertContentsOfTest(
collection: [],
newElements: [],
indexSelection: IndexSelection.start,
expected: []),
InsertContentsOfTest(
collection: [],
newElements: [1010],
indexSelection: .start,
expected: [1010]),
InsertContentsOfTest(
collection: [],
newElements: [1010, 2020, 3030, 4040],
indexSelection: .start,
expected: [1010, 2020, 3030, 4040]),
InsertContentsOfTest(
collection: [2020],
newElements: [1010],
indexSelection: .start,
expected: [1010, 2020]),
InsertContentsOfTest(
collection: [1010],
newElements: [2020],
indexSelection: .end,
expected: [1010, 2020]),
InsertContentsOfTest(
collection: [4040],
newElements: [1010, 2020, 3030],
indexSelection: .start,
expected: [1010, 2020, 3030, 4040]),
InsertContentsOfTest(
collection: [1010],
newElements: [2020, 3030, 4040],
indexSelection: .end,
expected: [1010, 2020, 3030, 4040]),
InsertContentsOfTest(
collection: [1010, 2020, 4040, 5050],
newElements: [3030],
indexSelection: .middle,
expected: [1010, 2020, 3030, 4040, 5050]),
InsertContentsOfTest(
collection: [4040, 5050, 6060],
newElements: [1010, 2020, 3030],
indexSelection: .start,
expected: [1010, 2020, 3030, 4040, 5050, 6060]),
InsertContentsOfTest(
collection: [1010, 2020, 3030],
newElements: [4040, 5050, 6060],
indexSelection: .end,
expected: [1010, 2020, 3030, 4040, 5050, 6060]),
InsertContentsOfTest(
collection: [1010, 2020, 3030, 7070, 8080, 9090],
newElements: [4040, 5050, 6060],
indexSelection: .middle,
expected: [1010, 2020, 3030, 4040, 5050, 6060, 7070, 8080, 9090]),
]
for test in tests {
var c = makeWrappedCollection(test.collection)
let newElements =
MinimalCollection(elements: test.newElements.map(wrapValue))
c.insert(contentsOf: newElements, at: test.indexSelection.index(in: c))
expectEqualSequence(
test.expected,
c.map { extractValue($0).value },
stackTrace: SourceLocStack().with(test.loc))
}
}
//===----------------------------------------------------------------------===//
// remove(at:)
//===----------------------------------------------------------------------===//
self.test("\(testNamePrefix).remove(at:)/semantics") {
let tests: [RemoveAtIndexTest] = [
RemoveAtIndexTest(
collection: [1010],
indexSelection: .start,
expectedRemovedElement: 1010,
expectedCollection: []),
RemoveAtIndexTest(
collection: [1010, 2020, 3030],
indexSelection: .start,
expectedRemovedElement: 1010,
expectedCollection: [2020, 3030]),
RemoveAtIndexTest(
collection: [1010, 2020, 3030],
indexSelection: .middle,
expectedRemovedElement: 2020,
expectedCollection: [1010, 3030]),
RemoveAtIndexTest(
collection: [1010, 2020, 3030],
indexSelection: .last,
expectedRemovedElement: 3030,
expectedCollection: [1010, 2020]),
]
for test in tests {
var c = makeWrappedCollection(test.collection)