eleven / messenger Public

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1	import XCTest
2	@testable import LChatCore
3
4	// Parity gate for RichText.swift against web/static/format.js — the SAME cases
5	// as test/format.test.mjs, so a message formats identically in both feeds. If
6	// one of these fails after a format.js change, update RichText.swift in the
7	// same change (and vice versa).
8	final class RichTextTests: XCTestCase {
9	private func links(_ s: String) -> [String] {
10	richTokens(s).compactMap { if case .link(_, let url) = $0 { return url.absoluteString } else { return nil } }
11	}
12
13	func testPlainTextPassesThrough() {
14	XCTAssertEqual(richTokens("just a normal message"), [.text("just a normal message")])
15	}
16
17	func testHttpsLinkSplits() {
18	XCTAssertEqual(richTokens("see https://example.com/page now"), [
19	.text("see "), .link("https://example.com/page", URL(string: "https://example.com/page")!), .text(" now"),
20	])
21	}
22
23	func testWwwGetsScheme() {
24	XCTAssertEqual(links("go to www.example.com"), ["https://www.example.com"])
25	}
26
27	func testTrailingPunctuationStripped() {
28	XCTAssertEqual(links("look at https://example.com."), ["https://example.com"])
29	XCTAssertEqual(links("(https://example.com)"), ["https://example.com"])
30	}
31
32	func testJavascriptSchemeIsNotALink() {
33	XCTAssertEqual(links("javascript:alert(1)"), [])
34	}
35
36	func testMultipleLinks() {
37	XCTAssertEqual(links("a https://one.com b http://two.com c"),
38	["https://one.com", "http://two.com"])
39	}
40
41	func testBareDomainsWithKnownTLDs() {
42	XCTAssertEqual(links("see rte.ie for news"), ["https://rte.ie"])
43	XCTAssertEqual(links("on guardian.co.uk today"), ["https://guardian.co.uk"])
44	XCTAssertEqual(links("rte.ie/news here"), ["https://rte.ie/news"])
45	}
46
47	func testFileNamesAndEmailsAreNotLinks() {
48	for s in ["run node.js today", "open index.html now", "see main.go there", "ping paul@rte.ie now"] {
49	XCTAssertEqual(links(s), [], s)
50	}
51	}
52
53	func testInlineFormatting() {
54	XCTAssertEqual(richTokens("a **bold** move"), [.text("a "), .bold("bold"), .text(" move")])
55	XCTAssertEqual(richTokens("so *italic* here"), [.text("so "), .italic("italic"), .text(" here")])
56	XCTAssertEqual(richTokens("it exists _to test_ :-/"), [.text("it exists "), .italic("to test"), .text(" :-/")])
57	XCTAssertEqual(richTokens("some `code` inline"), [.text("some "), .code("code"), .text(" inline")])
58	XCTAssertEqual(richTokens("well ~nope~ then"), [.text("well "), .strike("nope"), .text(" then")])
59	}
60
61	// test/format.test.mjs "triple asterisk is combined bold italic"
62	func testTripleAsteriskIsCombinedBoldItalic() {
63	XCTAssertEqual(richTokens("***both***"), [.boldItalic("both")])
64	XCTAssertEqual(richTokens("a ***b c*** d"), [.text("a "), .boldItalic("b c"), .text(" d")])
65	// Neighbours don't bleed: bi next to bold, and markers still can't span lines.
66	XCTAssertEqual(richTokens("***x*** **y**"), [.boldItalic("x"), .text(" "), .bold("y")])
67	XCTAssertEqual(richTokens("***a\nb***"), [.text("***a\nb***")])
68	}
69
70	func testUnderscoreItalicsNeedWordBoundaries() {
71	// file_names must not italicize (format.js's lookbehind/lookahead).
72	XCTAssertEqual(richTokens("see file_name_here"), [.text("see file_name_here")])
73	}
74
75	func testLinksAreNeverFormattedInside() {
76	// The underscore inside the URL must not become italics.
77	XCTAssertEqual(links("https://example.com/a_b_c"), ["https://example.com/a_b_c"])
78	}
79
80	// ---- blockTokens — the eight cases from test/format.test.mjs ----------
81
82	func testBlockPlainTextIsOneUntouchedBlock() {
83	XCTAssertEqual(blockTokens("hello\n\nworld"), [.p("hello\n\nworld")])
84	XCTAssertEqual(blockTokens(""), [.p("")])
85	}
86
87	func testBlockFencedCodeMarkersVerbatim() {
88	XCTAssertEqual(blockTokens("look:\n```\nif (a > b) { *notBold* }\n```\nnice"), [
89	.p("look:"), .code("if (a > b) { *notBold* }", lang: ""), .p("nice"),
90	])
91	}
92
93	func testBlockFenceCapturesLanguage() {
94	XCTAssertEqual(blockTokens("```js\nconst x = 1;\n```"),
95	[.code("const x = 1;", lang: "js")])
96	}
97
98	func testBlockUnterminatedFenceRunsToEnd() {
99	XCTAssertEqual(blockTokens("```\nline one\nline two"),
100	[.code("line one\nline two", lang: "")])
101	}
102
103	func testBlockInlineBackticksAreNotAFence() {
104	XCTAssertEqual(blockTokens("```js``` opens a fence"),
105	[.p("```js``` opens a fence")])
106	}
107
108	func testBlockConsecutiveQuoteLinesMerge() {
109	XCTAssertEqual(blockTokens("> two roads diverged\n> in a yellow wood\nso true"), [
110	.quote("two roads diverged\nin a yellow wood"), .p("so true"),
111	])
112	}
113
114	func testBlockBareQuoteContinuesAsBlankLine() {
115	XCTAssertEqual(blockTokens("> first\n>\n> second"), [.quote("first\n\nsecond")])
116	}
117
118	func testBlockMidLineAngleIsNotAQuote() {
119	XCTAssertEqual(blockTokens("5 > 3 and 2 > 1"), [.p("5 > 3 and 2 > 1")])
120	}
121
122	func testBlockBlankLinesAroundBlocksDropped() {
123	XCTAssertEqual(blockTokens("intro\n\n> quoted\n\noutro"), [
124	.p("intro"), .quote("quoted"), .p("outro"),
125	])
126	}
127
128	// ---- youtubeId — the shapes from test/format.test.mjs ------------------
129
130	func testYouTubeIdParsesCommonShapes() {
131	func yt(_ s: String) -> (String, Int)? {
132	youtubeId(URL(string: s)!).map { ($0.id, $0.start) }
133	}
134	XCTAssertEqual(yt("https://www.youtube.com/watch?v=dQw4w9WgXcQ")?.0, "dQw4w9WgXcQ")
135	XCTAssertEqual(yt("https://youtu.be/dQw4w9WgXcQ")?.0, "dQw4w9WgXcQ")
136	XCTAssertEqual(yt("https://m.youtube.com/watch?v=dQw4w9WgXcQ&pp=xyz")?.0, "dQw4w9WgXcQ")
137	XCTAssertEqual(yt("https://www.youtube.com/shorts/dQw4w9WgXcQ")?.0, "dQw4w9WgXcQ")
138	XCTAssertEqual(yt("https://www.youtube.com/embed/dQw4w9WgXcQ")?.0, "dQw4w9WgXcQ")
139	XCTAssertEqual(yt("https://www.youtube.com/watch?v=dQw4w9WgXcQ&t=90")?.1, 90)
140	XCTAssertEqual(yt("https://youtu.be/dQw4w9WgXcQ?t=1h2m3s")?.1, 3723)
141	XCTAssertNil(yt("https://example.com/watch?v=dQw4w9WgXcQ"))
142	XCTAssertNil(yt("https://www.youtube.com/watch?v=short"))
143	}
144
145	func testEmojiOnlyCount() {
146	XCTAssertEqual(emojiOnlyCount("👍"), 1)
147	XCTAssertEqual(emojiOnlyCount("😀😂"), 2)
148	XCTAssertEqual(emojiOnlyCount("🎉🎉🎉"), 3)
149	XCTAssertEqual(emojiOnlyCount("👨‍👩‍👧‍👦"), 1, "ZWJ family is one emoji")
150	XCTAssertEqual(emojiOnlyCount("👍🏽"), 1, "skin tone is one emoji")
151	XCTAssertEqual(emojiOnlyCount("🇬🇧"), 1, "flag is one emoji")
152	XCTAssertEqual(emojiOnlyCount("👍 👍"), 2, "whitespace between emoji allowed")
153	XCTAssertEqual(emojiOnlyCount("👍👍👍👍"), 0, "more than 3 renders normally")
154	XCTAssertEqual(emojiOnlyCount("hi 👍"), 0)
155	XCTAssertEqual(emojiOnlyCount("👍 nice"), 0)
156	XCTAssertEqual(emojiOnlyCount("plain text"), 0)
157	XCTAssertEqual(emojiOnlyCount(""), 0)
158	}
159
160	// The web twin's regression (format.test.mjs): emphasis markers around a
161	// URL must never ride into the href — "**github.com/apps/x**" gets a
162	// clean link, stars left as literal text.
163	func testEmphasisMarkersStayOutOfHrefs() {
164	let toks = tokenizeText("go to **github.com/apps/eleven-messenger** and install")
165	let link = toks.first(where: { $0.href != nil })
166	XCTAssertEqual(link?.text, "github.com/apps/eleven-messenger")
167	XCTAssertEqual(link?.href?.absoluteString.contains("*"), false)
168	XCTAssertEqual(toks.map(\.text).joined(), "go to **github.com/apps/eleven-messenger** and install")
169
170	let toks2 = tokenizeText("see https://docs.github.com/rest/issues#list**")
171	let link2 = toks2.first(where: { $0.href != nil })
172	XCTAssertEqual(link2?.text, "https://docs.github.com/rest/issues#list")
173	}
174	}
175