//
// Copyright 2021 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
//
import XCTest
@testable import Signal
@testable import SignalServiceKit
class EmojiTests: XCTestCase {
func testSimpleEmojiCases() {
XCTAssertFalse("".isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertTrue("😃".isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertFalse("😃😃".isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertFalse("a".isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertFalse(" 😃".isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertFalse("😃 ".isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertTrue("👨👩👧👦".isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertTrue("👨🏿🤝👨🏻".isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertFalse("".isSingleEmoji)
XCTAssertTrue("😃".isSingleEmoji)
XCTAssertFalse("😃😃".isSingleEmoji)
XCTAssertFalse("a".isSingleEmoji)
XCTAssertFalse(" 😃".isSingleEmoji)
XCTAssertFalse("😃 ".isSingleEmoji)
XCTAssertTrue("👨👩👧👦".isSingleEmoji)
XCTAssertTrue("👨🏿🤝👨🏻".isSingleEmoji)
}
func testEmojiCounts() {
XCTAssertEqual("".glyphCount, 0)
XCTAssertEqual("😃".glyphCount, 1)
XCTAssertEqual("😃😃".glyphCount, 2)
XCTAssertEqual("a".glyphCount, 1)
XCTAssertEqual(" 😃".glyphCount, 2)
XCTAssertEqual("😃 ".glyphCount, 2)
XCTAssertEqual("👨👩👧👦".glyphCount, 1)
// CoreText considers this two glyphs,
// but glyphCount now uses String.count.
XCTAssertEqual("👨🏿🤝👨🏻".glyphCount, 1)
XCTAssertEqual("".count, 0)
XCTAssertEqual("😃".count, 1)
XCTAssertEqual("😃😃".count, 2)
XCTAssertEqual("a".count, 1)
XCTAssertEqual(" 😃".count, 2)
XCTAssertEqual("😃 ".count, 2)
XCTAssertEqual("👨👩👧👦".count, 1)
XCTAssertEqual("👨🏿🤝👨🏻".count, 1)
}
func testFancyEmojiCases() {
do {
// Valid emoji with skin tones.
let fancyEmoji = EmojiWithSkinTones(baseEmoji: .manWithGuaPiMao, skinTones: [.mediumDark]).rawValue
XCTAssertTrue(fancyEmoji.isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertTrue(fancyEmoji.isSingleEmoji)
XCTAssertEqual(fancyEmoji.count, 1)
}
do {
// Invalid emoji with skin tones.
let fancyEmoji = EmojiWithSkinTones(baseEmoji: .blueberries, skinTones: [.mediumDark]).rawValue
XCTAssertTrue(fancyEmoji.isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertTrue(fancyEmoji.isSingleEmoji)
XCTAssertEqual(fancyEmoji.count, 1)
}
do {
// Black Diamond Suit Emoji
let fancyEmoji = "\u{2666}" // ♦
// EmojiWithSkinTones doesn't recognize this as an emoji...
XCTAssertFalse(fancyEmoji.isSingleEmojiUsingEmojiWithSkinTones)
// But isSingleEmoji does...
XCTAssertTrue(fancyEmoji.isSingleEmoji)
XCTAssertEqual(fancyEmoji.count, 1)
}
do {
// Black Diamond Suit Emoji
// Adding 'Variation Selector-16':
let fancyEmoji = "\u{2666}\u{FE0F}" // ♦️
XCTAssertTrue(fancyEmoji.isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertTrue(fancyEmoji.isSingleEmoji)
XCTAssertEqual(fancyEmoji.count, 1)
}
do {
// Thumbs up sign:
let fancyEmoji = "\u{1F44D}" // 👍
XCTAssertTrue(fancyEmoji.isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertTrue(fancyEmoji.isSingleEmoji)
XCTAssertEqual(fancyEmoji.count, 1)
}
do {
// Thumbs up sign:
// Adding 'Emoji Modifier Fitzpatrick Type-4':
let fancyEmoji = "\u{1F44D}\u{1F3FD}" // 👍🏽
XCTAssertTrue(fancyEmoji.isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertTrue(fancyEmoji.isSingleEmoji)
XCTAssertEqual(fancyEmoji.count, 1)
}
do {
// Man, Woman, Girl, Boy
let fancyEmoji = "\u{1F468}\u{1F469}\u{1F467}\u{1F466}" // 👨👩👧👦
XCTAssertFalse(fancyEmoji.isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertFalse(fancyEmoji.isSingleEmoji)
XCTAssertEqual(fancyEmoji.count, 4)
}
do {
// Man, Woman, Girl, Boy
// Adding 'Zero Width Joiner' between each
let fancyEmoji = "\u{1F468}\u{200D}\u{1F469}\u{200D}\u{1F467}\u{200D}\u{1F466}" // 👨👩👧👦
XCTAssertTrue(fancyEmoji.isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertTrue(fancyEmoji.isSingleEmoji)
XCTAssertEqual(fancyEmoji.count, 1)
}
do {
// This emoji has two skin tones.
// CoreText considers this two glyphs.
let fancyEmoji = "👨🏿🤝👨🏻"
XCTAssertTrue(fancyEmoji.isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertTrue(fancyEmoji.isSingleEmoji)
XCTAssertEqual(fancyEmoji.count, 1)
}
do {
let fancyEmoji = "🏳"
// EmojiWithSkinTones doesn't recognize this as an emoji...
XCTAssertFalse(fancyEmoji.isSingleEmojiUsingEmojiWithSkinTones)
// But isSingleEmoji does...
XCTAssertTrue(fancyEmoji.isSingleEmoji)
XCTAssertEqual(fancyEmoji.count, 1)
}
do {
let fancyEmoji = "🌈️"
// EmojiWithSkinTones doesn't recognize this as an emoji...
XCTAssertFalse(fancyEmoji.isSingleEmojiUsingEmojiWithSkinTones)
// But isSingleEmoji does...
XCTAssertTrue(fancyEmoji.isSingleEmoji)
XCTAssertEqual(fancyEmoji.count, 1)
}
do {
// Not an emoji.
let fancyEmoji = "a"
XCTAssertFalse(fancyEmoji.isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertFalse(fancyEmoji.isSingleEmoji)
XCTAssertEqual(fancyEmoji.count, 1)
}
do {
// Empty string.
let fancyEmoji = ""
XCTAssertFalse(fancyEmoji.isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertFalse(fancyEmoji.isSingleEmoji)
XCTAssertEqual(fancyEmoji.count, 0)
}
do {
// Not an emoji; just a isolated modifier.
// 'Emoji Modifier Fitzpatrick Type-4':
let fancyEmoji = "\u{1F3FD}"
// But this is considered an emoji by all measures.
XCTAssertTrue(fancyEmoji.isSingleEmojiUsingEmojiWithSkinTones)
XCTAssertTrue(fancyEmoji.isSingleEmoji)
XCTAssertEqual(fancyEmoji.count, 1)
}
do {
// Not an emoji; just a isolated modifier.
// 'Variation Selector-16':
let fancyEmoji = "\u{FE0F}"
// EmojiWithSkinTones doesn't recognize this as an emoji...
XCTAssertFalse(fancyEmoji.isSingleEmojiUsingEmojiWithSkinTones)
// But isSingleEmoji does...
XCTAssertTrue(fancyEmoji.isSingleEmoji)
XCTAssertEqual(fancyEmoji.count, 1)
}
}
func testMoreEmojiCases() {
let moreEmojis = [
"😍",
"👩🏽",
"👨🦰",
"👨🏿🦰",
"👨🦱",
"👨🏿🦱",
"🦹🏿♂️",
"👾",
"🙇",
"💁",
"🙅",
"🙆",
"🙋",
"🙎",
"🙍",
"🐵",
"🙈",
"🙉",
"🙊",
"❤️",
"💔",
"💌",
"💕",
"💞",
"💓",
"💗",
"💖",
"💘",
"💝",
"💟",
"💜",
"💛",
"💚",
"💙",
"✋🏿",
"💪🏿",
"👐🏿",
"🙌🏿",
"👏🏿",
"🙏🏿",
"👨👩👦",
"👨👩👧👦",
"👨👨👦",
"👩👩👧",
"👨👦",
"👨👧👦",
"👩👦",
"👩👧👦",
"🚾",
"🆒",
"🆓",
"🆕",
"🆖",
"🆗",
"🆙",
"🏧",
"0️⃣",
"1️⃣",
"2️⃣",
"3️⃣",
"4️⃣",
"5️⃣",
"6️⃣",
"7️⃣",
"8️⃣",
"9️⃣",
"🔟",
"🇦🇫",
"🇦🇲",
"🇺🇸",
"🇷🇺",
"🇸🇦",
"🇸🇦",
"🇨🇦",
]
for emoji in moreEmojis {
if !emoji.isSingleEmojiUsingEmojiWithSkinTones {
Logger.warn("!isSingleEmojiUsingEmojiWithSkinTones: '\(emoji)'")
}
XCTAssertTrue(emoji.isSingleEmojiUsingEmojiWithSkinTones)
if !emoji.isSingleEmoji {
Logger.warn("!isSingleEmoji: '\(emoji)'")
}
XCTAssertTrue(emoji.isSingleEmoji)
if emoji.count != 1 {
Logger.warn("'\(emoji)': \(emoji.count) != 1")
}
XCTAssertEqual(emoji.count, 1)
}
}
}
