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// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
class TestNSTextCheckingResult: XCTestCase {
func test_textCheckingResult() {
let patternString = "(a|b)x|123|(?<aname>c|d)y"
do {
let patternOptions: NSRegularExpression.Options = []
let regex = try NSRegularExpression(pattern: patternString, options: patternOptions)
let searchString = "1x030cy"
let searchOptions: NSRegularExpression.MatchingOptions = []
let searchRange = NSRange(location: 0, length: 7)
let match: NSTextCheckingResult = regex.firstMatch(in: searchString, options: searchOptions, range: searchRange)!
//Positive offset
var result = match.adjustingRanges(offset: 1)
XCTAssertEqual(result.range(at: 0).location, 6)
XCTAssertEqual(result.range(at: 1).location, NSNotFound)
XCTAssertEqual(result.range(at: 2).location, 6)
if #available(macOS 10.13, iOS 11.0, watchOS 4.0, tvOS 11.0, *) {
XCTAssertEqual(result.range(withName: "aname").location, 6)
}
//Negative offset
result = match.adjustingRanges(offset: -2)
XCTAssertEqual(result.range(at: 0).location, 3)
XCTAssertEqual(result.range(at: 1).location, NSNotFound)
XCTAssertEqual(result.range(at: 2).location, 3)
if #available(macOS 10.13, iOS 11.0, watchOS 4.0, tvOS 11.0, *) {
XCTAssertEqual(result.range(withName: "aname").location, 3)
}
//ZeroOffset
result = match.adjustingRanges(offset: 0)
XCTAssertEqual(result.range(at: 0).location, 5)
XCTAssertEqual(result.range(at: 1).location, NSNotFound)
XCTAssertEqual(result.range(at: 2).location, 5)
if #available(macOS 10.13, iOS 11.0, watchOS 4.0, tvOS 11.0, *) {
XCTAssertEqual(result.range(withName: "aname").location, 5)
}
} catch {
XCTFail("Unable to build regular expression for pattern \(patternString)")
}
}
func test_multipleMatches() {
let patternString = "(?<name>hello)[0-9]"
do {
let regex = try NSRegularExpression(pattern: patternString, options: [])
let searchString = "hello1 hello2"
let searchRange = NSRange(location: 0, length: searchString.count)
let matches = regex.matches(in: searchString, options: [], range: searchRange)
XCTAssertEqual(matches.count, 2)
XCTAssertEqual(matches[0].numberOfRanges, 2)
XCTAssertEqual(matches[0].range, NSRange(location: 0, length: 6))
XCTAssertEqual(matches[0].range(at: 0), NSRange(location: 0, length: 6))
XCTAssertEqual(matches[0].range(at: 1), NSRange(location: 0, length: 5))
if #available(macOS 10.13, iOS 11.0, watchOS 4.0, tvOS 11.0, *) {
XCTAssertEqual(matches[0].range(withName: "name"), NSRange(location: 0, length: 5))
}
XCTAssertEqual(matches[1].numberOfRanges, 2)
XCTAssertEqual(matches[1].range, NSRange(location: 7, length: 6))
XCTAssertEqual(matches[1].range(at: 0), NSRange(location: 7, length: 6))
XCTAssertEqual(matches[1].range(at: 1), NSRange(location: 7, length: 5))
if #available(macOS 10.13, iOS 11.0, watchOS 4.0, tvOS 11.0, *) {
XCTAssertEqual(matches[1].range(withName: "name"), NSRange(location: 7, length: 5))
}
} catch {
XCTFail("Unable to build regular expression for pattern \(patternString)")
}
}
func test_rangeWithName() {
guard #available(macOS 10.13, iOS 11.0, watchOS 4.0, tvOS 11.0, *) else {
return
}
let patternString = "(?<name1>hel)lo, (?<name2>worl)d"
do {
let regex = try NSRegularExpression(pattern: patternString, options: [])
let searchString = "hello, world"
let searchRange = NSRange(location: 0, length: searchString.count)
let matches = regex.matches(in: searchString, options: [], range: searchRange)
XCTAssertEqual(matches.count, 1)
XCTAssertEqual(matches[0].numberOfRanges, 3)
XCTAssertEqual(matches[0].range(withName: "incorrect").location, NSNotFound)
XCTAssertEqual(matches[0].range(withName: "name1"), NSRange(location: 0, length: 3))
XCTAssertEqual(matches[0].range(withName: "name2"), NSRange(location: 7, length: 4))
} catch {
XCTFail("Unable to build regular expression for pattern \(patternString)")
}
}
let fixtures = [
Fixtures.textCheckingResultSimpleRegex,
Fixtures.textCheckingResultExtendedRegex,
Fixtures.textCheckingResultComplexRegex,
]
private func areEqual(_ lhs: NSTextCheckingResult, _ rhs: NSTextCheckingResult) -> Bool {
guard lhs.resultType == rhs.resultType else { return false }
guard lhs.numberOfRanges == rhs.numberOfRanges else { return false }
for i in 0 ..< lhs.numberOfRanges {
guard lhs.range(at: i) == rhs.range(at: i) else {
return false
}
}
guard lhs.regularExpression == rhs.regularExpression else {
return false
}
return true
}
func test_codingRoundtrip() throws {
for fixture in fixtures {
try fixture.assertValueRoundtripsInCoder(secureCoding: true, matchingWith: areEqual(_:_:))
}
}
func test_loadedVauesMatch() throws {
for fixture in fixtures {
try fixture.assertLoadedValuesMatch(areEqual(_:_:))
}
}
}
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