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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 - 2017 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
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 {
public let collection: [OpaqueValue<Int>]
public let newElements: [OpaqueValue<Int>]
public let rangeSelection: RangeSelection
public let expected: [Int]
public let closedExpected: [Int]? // Expected array for closed ranges
public let loc: SourceLoc
internal init(
collection: [Int], newElements: [Int],
rangeSelection: RangeSelection, expected: [Int], closedExpected: [Int]? = 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 {
let collection: [OpaqueValue<Int>]
let newElement: OpaqueValue<Int>
let expected: [Int]
let loc: SourceLoc
internal init(
collection: [Int], newElement: Int, expected: [Int],
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 {
let collection: [OpaqueValue<Int>]
let newElements: [OpaqueValue<Int>]
let expected: [Int]
let loc: SourceLoc
internal init(
collection: [Int], newElements: [Int], expected: [Int],
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 {
let collection: [OpaqueValue<Int>]
let newElement: OpaqueValue<Int>
let indexSelection: IndexSelection
let expected: [Int]
let loc: SourceLoc
internal init(
collection: [Int], newElement: Int, indexSelection: IndexSelection,
expected: [Int], 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 {
let collection: [OpaqueValue<Int>]
let newElements: [OpaqueValue<Int>]
let indexSelection: IndexSelection
let expected: [Int]
let loc: SourceLoc
internal init(
collection: [Int], newElements: [Int], indexSelection: IndexSelection,
expected: [Int], 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 {
let collection: [OpaqueValue<Int>]
let indexSelection: IndexSelection
let expectedRemovedElement: Int
let expectedCollection: [Int]
let loc: SourceLoc
internal init(
collection: [Int], indexSelection: IndexSelection,
expectedRemovedElement: Int, expectedCollection: [Int],
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 {
let collection: [OpaqueValue<Int>]
let numberToRemove: Int
let expectedCollection: [Int]
let loc: SourceLoc
internal init(
collection: [Int], numberToRemove: Int, expectedCollection: [Int],
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 {
public let collection: [OpaqueValue<Int>]
public let rangeSelection: RangeSelection
public let expected: [Int]
public let loc: SourceLoc
internal init(
collection: [Int], rangeSelection: RangeSelection, expected: [Int],
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 {
let collection: [OpaqueValue<Int>]
let expected: [Int]
let loc: SourceLoc
internal init(
collection: [Int], expected: [Int],
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: [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 {
let lhs: [OpaqueValue<Int>]
let rhs: [OpaqueValue<Int>]
let expected: [Int]
let loc: SourceLoc
internal init(
lhs: [Int], rhs: [Int], expected: [Int],
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: []
),
]
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]),
]
// 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]),
]
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]),
]
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)
let removedElement = c.remove(at: test.indexSelection.index(in: c))
expectEqualSequence(
test.expectedCollection,
c.map { extractValue($0).value },
stackTrace: SourceLocStack().with(test.loc))
expectEqual(
test.expectedRemovedElement,
extractValue(removedElement).value,
stackTrace: SourceLocStack().with(test.loc))
}
}
//===----------------------------------------------------------------------===//
// removeFirst()
//===----------------------------------------------------------------------===//
self.test("\(testNamePrefix).removeFirst()/semantics") {
for test in removeFirstTests.filter({ $0.numberToRemove == 1 }) {
var c = makeWrappedCollection(test.collection.map(OpaqueValue.init))
let removedElement = c.removeFirst()
expectEqual(test.collection.first, extractValue(removedElement).value)
expectEqualSequence(
test.expectedCollection,
c.map { extractValue($0).value },
"removeFirst() shouldn't mutate the tail of the collection",
stackTrace: SourceLocStack().with(test.loc))
}
}
self.test("\(testNamePrefix).removeFirst()/empty/semantics") {
var c = makeWrappedCollection(Array<OpaqueValue<Int>>())
expectCrashLater()
_ = c.removeFirst() // Should trap.
}
//===----------------------------------------------------------------------===//
// removeFirst(n: Int)
//===----------------------------------------------------------------------===//
self.test("\(testNamePrefix).removeFirst(n: Int)/semantics") {
for test in removeFirstTests {
var c = makeWrappedCollection(test.collection.map(OpaqueValue.init))
c.removeFirst(test.numberToRemove)
expectEqualSequence(
test.expectedCollection,
c.map { extractValue($0).value },
"removeFirst() shouldn't mutate the tail of the collection",
stackTrace: SourceLocStack().with(test.loc)
)
}
}
self.test("\(testNamePrefix).removeFirst(n: Int)/empty/semantics") {
var c = makeWrappedCollection(Array<OpaqueValue<Int>>())
expectCrashLater()
c.removeFirst(1) // Should trap.
}
self.test("\(testNamePrefix).removeFirst(n: Int)/removeNegative/semantics") {
var c = makeWrappedCollection([1010, 2020, 3030].map(OpaqueValue.init))
expectCrashLater()
c.removeFirst(-1) // Should trap.
}
self.test("\(testNamePrefix).removeFirst(n: Int)/removeTooMany/semantics") {
var c = makeWrappedCollection([1010, 2020, 3030].map(OpaqueValue.init))
expectCrashLater()
c.removeFirst(5) // Should trap.
}
//===----------------------------------------------------------------------===//
// removeSubrange()
//===----------------------------------------------------------------------===//
self.test("\(testNamePrefix).removeSubrange()/range/semantics") {
for test in removeRangeTests {
var c = makeWrappedCollection(test.collection)
let rangeToRemove = test.rangeSelection.range(in: c)
c.removeSubrange(rangeToRemove)
expectEqualSequence(
test.expected,
c.map { extractValue($0).value },
stackTrace: SourceLocStack().with(test.loc))
}
}
self.test("\(testNamePrefix).replaceSubrange()/closedRange/semantics") {
for test in removeRangeTests.filter({ !$0.rangeSelection.isEmpty }) {
var c = makeWrappedCollection(test.collection)
let rangeToRemove = test.rangeSelection.closedRange(in: c)
c.removeSubrange(rangeToRemove)
expectEqualSequence(
test.expected,
c.map { extractValue($0).value },
stackTrace: SourceLocStack().with(test.loc))
}
}
//===----------------------------------------------------------------------===//
// removeAll()
//===----------------------------------------------------------------------===//
self.test("\(testNamePrefix).removeAll()/semantics") {
let tests: [RemoveAllTest] = [
RemoveAllTest(
collection: [],
expected: []),
RemoveAllTest(
collection: [1010],
expected: []),
RemoveAllTest(
collection: [1010, 2020, 3030, 4040, 5050],
expected: []),
]
for test in tests {
var c = makeWrappedCollection(test.collection)
c.removeAll()
expectEqualSequence(
test.expected,
c.map { extractValue($0).value },
stackTrace: SourceLocStack().with(test.loc))
}
for test in tests {
var c = makeWrappedCollection(test.collection)
c.removeAll(keepingCapacity: false)
expectEqualSequence(
test.expected,
c.map { extractValue($0).value },
stackTrace: SourceLocStack().with(test.loc))
}
for test in tests {
var c = makeWrappedCollection(test.collection)
c.removeAll(keepingCapacity: true)
expectEqualSequence(
test.expected,
c.map { extractValue($0).value },
stackTrace: SourceLocStack().with(test.loc))
}
}
//===----------------------------------------------------------------------===//
// reserveCapacity()
//===----------------------------------------------------------------------===//
self.test("\(testNamePrefix).reserveCapacity()/semantics") {
let tests: [ReserveCapacityTest] = [
ReserveCapacityTest(
collection: [],
requestedCapacity: 0),
ReserveCapacityTest(
collection: [],
requestedCapacity: 3),
ReserveCapacityTest(
collection: [],
requestedCapacity: 100),
ReserveCapacityTest(
collection: [ 1010 ],
requestedCapacity: 0),
ReserveCapacityTest(
collection: [ 1010 ],
requestedCapacity: 3),
ReserveCapacityTest(
collection: [ 1010 ],
requestedCapacity: 100),
ReserveCapacityTest(
collection: [ 1010, 2020, 3030 ],
requestedCapacity: 0),
ReserveCapacityTest(
collection: [ 1010, 2020, 3030 ],
requestedCapacity: 3),
ReserveCapacityTest(
collection: [ 1010, 2020, 3030 ],
requestedCapacity: 100),
]
for test in tests {
var c = makeWrappedCollection(test.collection)
c.reserveCapacity(numericCast(test.requestedCapacity))
expectEqualSequence(
test.collection.map { $0.value },
c.map { extractValue($0).value },
stackTrace: SourceLocStack().with(test.loc))
}
}
//===----------------------------------------------------------------------===//
// + operator
//===----------------------------------------------------------------------===//
self.test("\(testNamePrefix).OperatorPlus") {
let tests: [OperatorPlusTest] = [
OperatorPlusTest(
lhs: [],
rhs: [],
expected: []),
OperatorPlusTest(
lhs: [],
rhs: [ 1010 ],
expected: [ 1010 ]),
OperatorPlusTest(
lhs: [ 1010 ],
rhs: [],