61 lines
2.4 KiB
TypeScript
61 lines
2.4 KiB
TypeScript
import { describe, expect, it } from "vitest";
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import { findTagMatches } from "@/utils/tag-grammar";
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const values = (source: string) => findTagMatches(source).map((match) => match.value);
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describe("tag scanner", () => {
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it.each([
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["#tag", ["tag"]],
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["hello#tag", ["tag"]],
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["#标签", ["标签"]],
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["#2026", ["2026"]],
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["#C++", ["C++"]],
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["#R&D", ["R&D"]],
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["#-foo #foo- #--- #&&", ["-foo", "foo-", "---", "&&"]],
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["#work/notes", ["work/notes"]],
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["#book/", ["book"]],
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["#/book", []],
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["#book//fiction", ["book"]],
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["#book/fiction/", ["book/fiction"]],
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["#l·l #foo‿bar", ["l·l", "foo‿bar"]],
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["#tag's #сім'я #O'Brien #O’Brien #OʼBrien", ["tag's", "сім'я", "O'Brien", "O’Brien", "OʼBrien"]],
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["#café's", ["café's"]],
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["'#tag' #users' #'missing #rock''roll", ["tag", "users", "rock"]],
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["#O‘Brien #foo-'bar #foo'1️⃣ #A'B", ["O", "foo-", "foo", "A"]],
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["#foo,bar #price€ #€budget #v²", ["foo", "price", "v"]],
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["#first#second", ["first", "second"]],
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["##tag", ["tag"]],
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["＃tag ﹟tag", []],
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])("scans %s", (source, expected) => {
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expect(values(source)).toEqual(expected);
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});
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it("emits ignored source code points only in the source span", () => {
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const source = "#AB #foo #AB #foo #A️B #́foo #café #foo/́bar";
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expect(values(source)).toEqual(["AB", "foo", "AB", "foo", "AB", "foo", "café", "foo/bar"]);
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expect(findTagMatches("#AB")[0]).toMatchObject({ from: 0, to: 4, source: "AB", value: "AB" });
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expect(values("# #́")).toEqual([]);
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});
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it("matches fully-qualified emoji atomically and excludes components", () => {
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expect(values("#*️⃣ #‼️ #♥ #♥️ #🏻")).toEqual(["*️⃣", "‼️", "♥️"]);
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expect(values("#️⃣ ##️⃣ #first#️⃣")).toEqual(["#️⃣", "first#️⃣"]);
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});
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it("uses the checked-in Unicode 17 and Emoji 17 repertoire", () => {
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expect(values("# #")).toEqual(["", ""]);
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});
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it("has no tag-specific length limit", () => {
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const tag = "a".repeat(101);
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expect(values(`#${tag}`)).toEqual([tag]);
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});
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it("does not match an emoji across the requested source limit", () => {
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expect(findTagMatches("#😀", 0, 2)).toEqual([]);
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});
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it("does not join an apostrophe across the requested source limit", () => {
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expect(findTagMatches("#O'B", 0, 3).map((match) => match.value)).toEqual(["O"]);
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});
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});
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