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4967fc08eb
Add convenience APIs to the stdlib's Unicode encodings: * Unicode.UTF16 * isASCII * isSurrogate * Unicode.UTF8 * isASCII * width * Unicode.UTF32 * isASCII * Unicode.ASCII * isASCII Tests added
114 lines
3.5 KiB
Swift
114 lines
3.5 KiB
Swift
//===--- Unicode.swift ----------------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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// RUN: %target-run-stdlib-swift
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// REQUIRES: executable_test
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import Swift
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import StdlibUnittest
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var UnicodeInternals = TestSuite("UnicodeInternals")
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UnicodeInternals.test("copy") {
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var u8: [UTF8.CodeUnit] = [ 0, 1, 2, 3, 4, 5 ]
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var u16: [UTF16.CodeUnit] = [ 6, 7, 8, 9, 10, 11 ]
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u16.withUnsafeMutableBufferPointer {
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(u16) -> () in
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let p16 = u16.baseAddress!
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u8.withUnsafeMutableBufferPointer {
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(u8) -> () in
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let p8 = u8.baseAddress!
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UTF16._copy(source: p8, destination: p16, count: 3)
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expectEqual([ 0, 1, 2, 9, 10, 11 ], Array(u16))
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UTF16._copy(source: p16 + 3, destination: p8, count: 3)
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expectEqual([ 9, 10, 11, 3, 4, 5 ], Array(u8))
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UTF16._copy(source: p16, destination: p16 + 3, count: 3)
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expectEqual([ 0, 1, 2, 0, 1, 2 ], Array(u16))
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UTF16._copy(source: p8, destination: p8 + 3, count: 3)
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expectEqual([ 9, 10, 11, 9, 10, 11 ], Array(u8))
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}
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}
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}
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var UnicodeAPIs = TestSuite("UnicodeAPIs")
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UnicodeAPIs.test("UnicodeDecodingResult/Equatable") {
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let instances: [UnicodeDecodingResult] = [
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.scalarValue("a"),
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.scalarValue("b"),
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.emptyInput,
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.error
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]
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checkEquatable(instances, oracle: ==)
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}
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typealias ASCII = Unicode.ASCII
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typealias UTF8 = Unicode.UTF8
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typealias UTF16 = Unicode.UTF16
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typealias UTF32 = Unicode.UTF32
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UnicodeAPIs.test("UTF-8 and UTF-16 queries") {
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guard #available(macOS 9999, iOS 9999, tvOS 9999, watchOS 9999, *) else {
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return
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}
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let str = "abéÏ01😓🎃👨👨👧👦アイウエオ"
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let scalars = Array(str.unicodeScalars)
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for scalar in scalars {
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expectEqual(String(scalar).utf16.count, UTF16.width(scalar))
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expectEqual(String(scalar).utf8.count, UTF8.width(scalar))
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expectEqual(UTF32.isASCII(scalar.value), UTF8.isASCII(scalar.utf8[0]))
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expectEqual(UTF32.isASCII(scalar.value), ASCII.isASCII(scalar.utf8[0]))
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expectEqual(UTF32.isASCII(scalar.value), UTF16.isASCII(scalar.utf16[0]))
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if scalar.utf16.count == 2 {
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let lead = scalar.utf16[0]
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let trail = scalar.utf16[1]
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expectTrue(UTF16.isLeadSurrogate(lead))
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expectTrue(UTF16.isSurrogate(lead))
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expectFalse(UTF16.isASCII(lead))
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expectTrue(UTF16.isTrailSurrogate(trail))
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expectTrue(UTF16.isSurrogate(trail))
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} else {
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let codeUnit = scalar.utf16[0]
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expectFalse(UTF16.isLeadSurrogate(codeUnit))
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expectFalse(UTF16.isTrailSurrogate(codeUnit))
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expectFalse(UTF16.isSurrogate(codeUnit))
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expectEqual(codeUnit <= 0x7F, UTF16.isASCII(codeUnit))
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}
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expectFalse(UTF8.isContinuation(scalar.utf8[0]))
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if scalar.utf8.count == 1 {
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let ascii = scalar.utf8[0]
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expectFalse(UTF8.isContinuation(ascii))
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expectTrue(UTF8.isASCII(ascii))
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} else {
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expectFalse(UTF8.isASCII(scalar.utf8[0]))
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expectFalse(UTF8.isContinuation(scalar.utf8[0]))
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for i in 1..<scalar.utf8.count {
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expectTrue(UTF8.isContinuation(scalar.utf8[i]))
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expectFalse(UTF8.isASCII(scalar.utf8[i]))
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}
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}
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}
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}
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runAllTests()
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