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//===----------------------------------------------------------------------===//
//
// This source file is part of the SwiftCertificates open source project
//
// Copyright (c) 2023 Apple Inc. and the SwiftCertificates project authors
// Licensed under Apache License v2.0
//
// See LICENSE.txt for license information
// See CONTRIBUTORS.txt for the list of SwiftCertificates project authors
//
// SPDX-License-Identifier: Apache-2.0
//
//===----------------------------------------------------------------------===//
import XCTest
import _CertificateInternals
final class TinyArrayTests: XCTestCase {
private func _assertEqual(
_ expected: @autoclosure () -> some Sequence<Int>,
initial: @autoclosure () -> _TinyArray<Int>,
_ mutate: (inout _TinyArray<Int>) -> Void,
file: StaticString = #filePath,
line: UInt = #line
) {
var actual = initial()
mutate(&actual)
XCTAssertEqual(Array(actual), Array(expected()), file: file, line: line)
let expected = _TinyArray(expected())
XCTAssertEqual(actual, expected, file: file, line: line)
var actualHasher = Hasher()
actualHasher.combine(actual)
var expectedHasher = Hasher()
expectedHasher.combine(expected)
XCTAssertEqual(
actualHasher.finalize(),
expectedHasher.finalize(),
"\(actual) does not have the same hash as \(expected)",
file: file,
line: line
)
}
private func assertEqual(
_ expected: [Int],
initial: @autoclosure () -> _TinyArray<Int> = _TinyArray(),
_ mutate: (inout _TinyArray<Int>) -> Void,
file: StaticString = #filePath,
line: UInt = #line
) {
_assertEqual(expected, initial: initial(), mutate, file: file, line: line)
// get a sequence that is not an `Array` to hit the slow path as well
_assertEqual(expected.lazy.map { $0 }, initial: initial(), mutate, file: file, line: line)
}
func testInit() {
XCTAssertEqual(Array(_TinyArray([Int]())), [])
XCTAssertEqual(Array(_TinyArray<Int>()), [])
XCTAssertEqual(_TinyArray<Int>(), _TinyArray<Int>([]))
XCTAssertEqual(Array(_TinyArray<Int>(CollectionOfOne(1))), [1])
XCTAssertEqual(Array(_TinyArray<Int>([1])), [1])
XCTAssertEqual(Array(_TinyArray<Int>([1, 2])), [1, 2])
XCTAssertEqual(Array(_TinyArray<Int>([1, 2, 3])), [1, 2, 3])
XCTAssertEqual(Array(_TinyArray<Int>([1, 2, 3, 4])), [1, 2, 3, 4])
XCTAssertEqual(Array(_TinyArray<Int>([1, 2, 3, 4, 5])), [1, 2, 3, 4, 5])
}
func testAppend() {
assertEqual([1]) { array in
array.append(1)
}
assertEqual([1, 2]) { array in
array.append(1)
array.append(2)
}
assertEqual([1, 2, 3]) { array in
array.append(1)
array.append(2)
array.append(3)
}
assertEqual([1, 2, 3, 4]) { array in
array.append(1)
array.append(2)
array.append(3)
array.append(4)
}
}
func testAppendContentsOf() {
assertEqual([]) { array in
array.append(contentsOf: [])
}
assertEqual([]) { array in
array.append(contentsOf: [])
array.append(contentsOf: [])
}
assertEqual([1]) { array in
array.append(contentsOf: [1])
}
assertEqual([1]) { array in
array.append(contentsOf: [1])
array.append(contentsOf: [])
}
assertEqual([1, 2]) { array in
array.append(contentsOf: [1, 2])
}
assertEqual([1, 2]) { array in
array.append(contentsOf: [1, 2])
array.append(contentsOf: [])
}
assertEqual([1, 2, 3]) { array in
array.append(contentsOf: [1, 2, 3])
}
assertEqual([1, 2, 3, 4]) { array in
array.append(contentsOf: [1, 2, 3, 4])
}
assertEqual([1, 2, 3, 4, 5]) { array in
array.append(contentsOf: [1, 2, 3, 4, 5])
}
assertEqual([1, 2]) { array in
array.append(contentsOf: [1])
array.append(contentsOf: [2])
}
assertEqual([1, 2, 3]) { array in
array.append(contentsOf: [1])
array.append(contentsOf: [2, 3])
}
assertEqual([1, 2, 3]) { array in
array.append(contentsOf: [1, 2])
array.append(contentsOf: [3])
}
assertEqual([1, 2, 3, 4]) { array in
array.append(contentsOf: [1, 2])
array.append(contentsOf: [3, 4])
}
assertEqual([1, 2, 3, 4]) { array in
array.append(contentsOf: [1])
array.append(contentsOf: [2, 3, 4])
}
assertEqual([1, 2, 3, 4]) { array in
array.append(contentsOf: [1, 2, 3])
array.append(contentsOf: [4])
}
assertEqual([1, 2, 3, 4, 5]) { array in
array.append(contentsOf: [1, 2, 3, 4])
array.append(contentsOf: [5])
}
assertEqual([1, 2, 3, 4, 5]) { array in
array.append(contentsOf: [1, 2, 3])
array.append(contentsOf: [4, 5])
}
assertEqual([1, 2, 3, 4, 5]) { array in
array.append(contentsOf: [1, 2])
array.append(contentsOf: [3, 4, 5])
}
assertEqual([1, 2, 3, 4, 5]) { array in
array.append(contentsOf: [1])
array.append(contentsOf: [2, 3, 4, 5])
}
}
func testRemoveAt() {
assertEqual([], initial: [1]) { array in
array.remove(at: 0)
}
assertEqual([1], initial: [1, 2]) { array in
array.remove(at: 1)
}
assertEqual([2], initial: [1, 2]) { array in
array.remove(at: 0)
}
assertEqual([], initial: [1, 2]) { array in
array.remove(at: 1)
array.remove(at: 0)
}
assertEqual([], initial: [1, 2]) { array in
array.remove(at: 0)
array.remove(at: 0)
}
assertEqual([1, 2], initial: [1, 2, 3]) { array in
array.remove(at: 2)
}
assertEqual([1, 3], initial: [1, 2, 3]) { array in
array.remove(at: 1)
}
assertEqual([2, 3], initial: [1, 2, 3]) { array in
array.remove(at: 0)
}
assertEqual([1], initial: [1, 2, 3]) { array in
array.remove(at: 1)
array.remove(at: 1)
}
assertEqual([2], initial: [1, 2, 3]) { array in
array.remove(at: 0)
array.remove(at: 1)
}
assertEqual([3], initial: [1, 2, 3]) { array in
array.remove(at: 1)
array.remove(at: 0)
}
assertEqual([], initial: [1, 2, 3]) { array in
array.remove(at: 2)
array.remove(at: 1)
array.remove(at: 0)
}
assertEqual([], initial: [1, 2, 3]) { array in
array.remove(at: 0)
array.remove(at: 0)
array.remove(at: 0)
}
}
func testRemoveAll() {
assertEqual([], initial: []) { array in
array.removeAll(where: { _ in true })
}
assertEqual([], initial: [1]) { array in
array.removeAll(where: { _ in true })
}
assertEqual([], initial: [1, 2]) { array in
array.removeAll(where: { _ in true })
}
assertEqual([], initial: [1, 2, 3]) { array in
array.removeAll(where: { _ in true })
}
assertEqual([], initial: [1, 2, 3, 4]) { array in
array.removeAll(where: { _ in true })
}
assertEqual([], initial: [1, 2, 3, 4, 5]) { array in
array.removeAll(where: { _ in true })
}
assertEqual([1], initial: [1]) { array in
array.removeAll(where: { _ in false })
}
assertEqual([1, 2], initial: [1, 2]) { array in
array.removeAll(where: { _ in false })
}
assertEqual([1, 2, 3], initial: [1, 2, 3]) { array in
array.removeAll(where: { _ in false })
}
assertEqual([1, 2, 3, 4], initial: [1, 2, 3, 4]) { array in
array.removeAll(where: { _ in false })
}
assertEqual([1, 2, 3, 4, 5], initial: [1, 2, 3, 4, 5]) { array in
array.removeAll(where: { _ in false })
}
assertEqual([], initial: [1]) { array in
array.removeAll(where: { Set([1]).contains($0) })
}
assertEqual([2], initial: [1, 2]) { array in
array.removeAll(where: { Set([1]).contains($0) })
}
assertEqual([2, 3], initial: [1, 2, 3]) { array in
array.removeAll(where: { Set([1]).contains($0) })
}
assertEqual([2], initial: [1, 2, 3]) { array in
array.removeAll(where: { Set([1, 3]).contains($0) })
}
}
func testSort() {
assertEqual([], initial: []) { array in
array.sort(by: { lhs, rhs in
XCTFail("should never be called")
return lhs < rhs
})
}
assertEqual([1], initial: [1]) { array in
array.sort(by: { lhs, rhs in
XCTFail("should never be called")
return lhs < rhs
})
}
assertEqual([2, 1], initial: [1, 2]) { array in
array.sort(by: >)
}
assertEqual([3, 2, 1], initial: [1, 2, 3]) { array in
array.sort(by: >)
}
}
func testThrowingInitFromResult() {
XCTAssertEqual(Array(try _TinyArray<Int>(CollectionOfOne(Result<_, Error>.success(1)))), [1])
XCTAssertEqual(Array(try _TinyArray([Result<_, Error>.success(1)])), [1])
XCTAssertEqual(Array(try _TinyArray([Result<_, Error>.success(1), .success(2)])), [1, 2])
XCTAssertEqual(Array(try _TinyArray([Result<_, Error>.success(1), .success(2), .success(3)])), [1, 2, 3])
XCTAssertEqual(
Array(try _TinyArray([Result<_, Error>.success(1), .success(2), .success(3), .success(4)])),
[1, 2, 3, 4]
)
XCTAssertEqual(
Array(try _TinyArray([Result<_, Error>.success(1), .success(2), .success(3), .success(4), .success(5)])),
[1, 2, 3, 4, 5]
)
struct MyError: Error {}
XCTAssertThrowsError(Array(try _TinyArray<Int>([Result.failure(MyError())])))
XCTAssertThrowsError(Array(try _TinyArray<Int>([Result.failure(MyError()), Result.failure(MyError())])))
XCTAssertThrowsError(Array(try _TinyArray<Int>([.success(1), Result.failure(MyError())])))
XCTAssertThrowsError(Array(try _TinyArray<Int>([.success(1), Result.failure(MyError()), .success(2)])))
XCTAssertThrowsError(Array(try _TinyArray<Int>([.success(1), .success(2), Result.failure(MyError())])))
XCTAssertThrowsError(
Array(try _TinyArray<Int>([.success(1), .success(2), Result.failure(MyError()), .success(4)]))
)
XCTAssertThrowsError(
Array(try _TinyArray<Int>([.success(1), .success(2), .success(3), Result.failure(MyError())]))
)
XCTAssertThrowsError(
Array(try _TinyArray<Int>([.success(1), .success(2), .success(3), .success(4), Result.failure(MyError())]))
)
}
}
extension _TinyArray: ExpressibleByArrayLiteral {
public typealias ArrayLiteralElement = Element
public init(arrayLiteral elements: Element...) {
self.init(elements)
}
}
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