105 lines
3.9 KiB
Swift
105 lines
3.9 KiB
Swift
//
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// Copyright 2022-2024 New Vector Ltd.
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//
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// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
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// Please see LICENSE files in the repository root for full details.
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//
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import XCTest
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@testable import ElementX
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class StringTests: XCTestCase {
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func testEmptyIsAscii() {
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XCTAssertTrue("".isASCII)
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}
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func testSpaceIsAscii() {
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XCTAssertTrue("".isASCII)
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}
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func testJohnnyIsAscii() {
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XCTAssertTrue("johnny".isASCII)
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}
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func testJöhnnyIsNotAscii() {
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XCTAssertFalse("jöhnny".isASCII)
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}
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func testJ🅾️hnnyIsNotAscii() {
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XCTAssertFalse("j🅾️hnny".isASCII)
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}
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func testAsciifiedMethod() {
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// ASCII strings return themselves unchanged
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XCTAssertEqual("johnny".asciified(), "johnny")
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XCTAssertEqual("hello".asciified(), "hello")
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XCTAssertEqual("abc123".asciified(), "abc123")
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XCTAssertEqual("".asciified(), "")
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XCTAssertEqual(" ".asciified(), " ")
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// Non-ASCII strings get converted or stripped
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XCTAssertEqual("jöhnny".asciified(), "johnny", "ö should become o")
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XCTAssertEqual("jåhnny".asciified(), "jahnny", "å should become a")
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XCTAssertEqual("café".asciified(), "cafe")
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XCTAssertEqual("naïve".asciified(), "naive")
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XCTAssertEqual("résumé".asciified(), "resume")
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XCTAssertEqual("🚀".asciified(), "")
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XCTAssertEqual("Heartbreak Hotel 🏩".asciified(), "Heartbreak Hotel", "The emoji should be stripped.")
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XCTAssertEqual("1️⃣2️⃣3️⃣".asciified(), "123", "The emoji should be converted to ASCII.")
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}
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func testGenerateBreakableWhitespaceEnd() {
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var count = 5
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var result = "\u{2066}" + String(repeating: "\u{2004}", count: count) + "\u{2800}"
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XCTAssertEqual(String.generateBreakableWhitespaceEnd(whitespaceCount: count, layoutDirection: .leftToRight), result)
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count = 3
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result = "\u{2066}" + String(repeating: "\u{2004}", count: count) + "\u{2800}"
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XCTAssertEqual(String.generateBreakableWhitespaceEnd(whitespaceCount: count, layoutDirection: .leftToRight), result)
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count = 0
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result = ""
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XCTAssertEqual(String.generateBreakableWhitespaceEnd(whitespaceCount: count, layoutDirection: .leftToRight), result)
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count = 4
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result = "\u{2067}" + String(repeating: "\u{2004}", count: count) + "\u{2800}"
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XCTAssertEqual(String.generateBreakableWhitespaceEnd(whitespaceCount: count, layoutDirection: .rightToLeft), result)
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count = 0
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result = ""
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XCTAssertEqual(String.generateBreakableWhitespaceEnd(whitespaceCount: count, layoutDirection: .rightToLeft), result)
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}
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func testEllipsizeWorks() {
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XCTAssertEqual("ellipsize".ellipsize(length: 5), "ellip…")
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}
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func testEllipsizeNotNeeded() {
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XCTAssertEqual("ellipsize".ellipsize(length: 15), "ellipsize")
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}
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func testReplaceBreakOccurrences() {
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let input0 = "</p><p>"
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let input1 = "</p>\n<p>"
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let input2 = "</p>\n\n<p>"
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let input3 = "</p>\n\n\n\n<p>"
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let input4 = "<p>a</p>\n<p>b</p>"
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let input5 = "empty"
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let expectedOutput0 = input0
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let expectedOutput1 = "<br><br>"
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let expectedOutput2 = "<br><br><br>"
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let expectedOutput3 = "<br><br><br><br><br>"
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let expectedOutput4 = "<p>a<br><br>b</p>"
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let expectedOutput5 = input5
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XCTAssertEqual(input0.replacingHtmlBreaksOccurrences(), expectedOutput0)
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XCTAssertEqual(input1.replacingHtmlBreaksOccurrences(), expectedOutput1)
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XCTAssertEqual(input2.replacingHtmlBreaksOccurrences(), expectedOutput2)
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XCTAssertEqual(input3.replacingHtmlBreaksOccurrences(), expectedOutput3)
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XCTAssertEqual(input4.replacingHtmlBreaksOccurrences(), expectedOutput4)
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XCTAssertEqual(input5.replacingHtmlBreaksOccurrences(), expectedOutput5)
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}
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}
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