File: UtilitiesTests.swift

package info (click to toggle)
swiftlang 6.1.3-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,532 kB
  • sloc: cpp: 9,901,743; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (31 lines) | stat: -rw-r--r-- 971 bytes parent folder | download | duplicates (2) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
 
//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift Collections open source project
//
// Copyright (c) 2021 - 2024 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
//
//===----------------------------------------------------------------------===//

import XCTest

#if !COLLECTIONS_SINGLE_MODULE && DEBUG
@testable import _CollectionsTestSupport
#endif

#if COLLECTIONS_SINGLE_MODULE || DEBUG
final class UtilitiesTests: CollectionTestCase {
  func testIntegerSquareRoot() {
    withSome("i", in: 0 ..< Int.max, maxSamples: 100_000) { i in
      let s = i._squareRoot()
      expectLessThanOrEqual(s * s, i)
      let next = (s + 1).multipliedReportingOverflow(by: s + 1)
      if !next.overflow {
        expectGreaterThan(next.partialValue, i)
      }
    }
  }
}
#endif