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letro-ios/UnitTests/Sources/StringTests.swift
Mauro 6160c44d67 Update copyright holding and dates (#4640)
* Update copyright holding and dates

* compound IDE Macros updated

* update copyright

* update copyrights done

* update templates and README
2025-10-21 14:34:56 +02:00

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//
// Copyright 2025 Element Creations Ltd.
// Copyright 2022-2025 New Vector Ltd.
//
// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
// Please see LICENSE files in the repository root for full details.
//
import XCTest
@testable import ElementX
class StringTests: XCTestCase {
func testEmptyIsAscii() {
XCTAssertTrue("".isASCII)
}
func testSpaceIsAscii() {
XCTAssertTrue("".isASCII)
}
func testJohnnyIsAscii() {
XCTAssertTrue("johnny".isASCII)
}
func testJöhnnyIsNotAscii() {
XCTAssertFalse("jöhnny".isASCII)
}
func testJ🅾hnnyIsNotAscii() {
XCTAssertFalse("j🅾hnny".isASCII)
}
func testAsciifiedMethod() {
// ASCII strings return themselves unchanged
XCTAssertEqual("johnny".asciified(), "johnny")
XCTAssertEqual("hello".asciified(), "hello")
XCTAssertEqual("abc123".asciified(), "abc123")
XCTAssertEqual("".asciified(), "")
XCTAssertEqual(" ".asciified(), " ")
// Non-ASCII strings get converted or stripped
XCTAssertEqual("jöhnny".asciified(), "johnny", "ö should become o")
XCTAssertEqual("jåhnny".asciified(), "jahnny", "å should become a")
XCTAssertEqual("café".asciified(), "cafe")
XCTAssertEqual("naïve".asciified(), "naive")
XCTAssertEqual("résumé".asciified(), "resume")
XCTAssertEqual("🚀".asciified(), "")
XCTAssertEqual("Heartbreak Hotel 🏩".asciified(), "Heartbreak Hotel", "The emoji should be stripped.")
XCTAssertEqual("1⃣2⃣3".asciified(), "123", "The emoji should be converted to ASCII.")
}
func testGenerateBreakableWhitespaceEnd() {
var count = 5
var result = "\u{2066}" + String(repeating: "\u{2004}", count: count) + "\u{2800}"
XCTAssertEqual(String.generateBreakableWhitespaceEnd(whitespaceCount: count, layoutDirection: .leftToRight), result)
count = 3
result = "\u{2066}" + String(repeating: "\u{2004}", count: count) + "\u{2800}"
XCTAssertEqual(String.generateBreakableWhitespaceEnd(whitespaceCount: count, layoutDirection: .leftToRight), result)
count = 0
result = ""
XCTAssertEqual(String.generateBreakableWhitespaceEnd(whitespaceCount: count, layoutDirection: .leftToRight), result)
count = 4
result = "\u{2067}" + String(repeating: "\u{2004}", count: count) + "\u{2800}"
XCTAssertEqual(String.generateBreakableWhitespaceEnd(whitespaceCount: count, layoutDirection: .rightToLeft), result)
count = 0
result = ""
XCTAssertEqual(String.generateBreakableWhitespaceEnd(whitespaceCount: count, layoutDirection: .rightToLeft), result)
}
func testEllipsizeWorks() {
XCTAssertEqual("ellipsize".ellipsize(length: 5), "ellip…")
}
func testEllipsizeNotNeeded() {
XCTAssertEqual("ellipsize".ellipsize(length: 15), "ellipsize")
}
func testReplaceBreakOccurrences() {
let input0 = "</p><p>"
let input1 = "</p>\n<p>"
let input2 = "</p>\n\n<p>"
let input3 = "</p>\n\n\n\n<p>"
let input4 = "<p>a</p>\n<p>b</p>"
let input5 = "empty"
let expectedOutput0 = input0
let expectedOutput1 = "<br><br>"
let expectedOutput2 = "<br><br><br>"
let expectedOutput3 = "<br><br><br><br><br>"
let expectedOutput4 = "<p>a<br><br>b</p>"
let expectedOutput5 = input5
XCTAssertEqual(input0.replacingHtmlBreaksOccurrences(), expectedOutput0)
XCTAssertEqual(input1.replacingHtmlBreaksOccurrences(), expectedOutput1)
XCTAssertEqual(input2.replacingHtmlBreaksOccurrences(), expectedOutput2)
XCTAssertEqual(input3.replacingHtmlBreaksOccurrences(), expectedOutput3)
XCTAssertEqual(input4.replacingHtmlBreaksOccurrences(), expectedOutput4)
XCTAssertEqual(input5.replacingHtmlBreaksOccurrences(), expectedOutput5)
}
}