buildTelegramThreadParams,

buildTypingThreadParams,

describeReplyTarget,

expandTextLinks,

getTelegramTextParts,

hasBotMention,

isBinaryContent,

normalizeForwardedContext,

renderTelegramTextEntities,

resolveTelegramDirectPeerId,

resolveTelegramForumFlag,

resolveTelegramForumThreadId,

).toBe(false);

});

});

describe("expandTextLinks", () => {

it("returns text unchanged when no entities are provided", () => {

expect(expandTextLinks("Hello world")).toBe("Hello world");

expect(expandTextLinks("Hello world", null)).toBe("Hello world");

expect(expandTextLinks("Hello world", [])).toBe("Hello world");

});

it("returns text unchanged when there are no text_link entities", () => {

describe("renderTelegramTextEntities", () => {

it("renders Telegram formatting entities as markdown", () => {

const text = "bold italic code strike underline spoiler";

const entities = [

{ type: "mention", offset: 0, length: 5 },

{ type: "bold", offset: 6, length: 5 },

{ type: "bold", offset: 0, length: 4 },

{ type: "italic", offset: 5, length: 6 },

{ type: "code", offset: 12, length: 4 },

{ type: "strikethrough", offset: 17, length: 6 },

{ type: "underline", offset: 24, length: 9 },

{ type: "spoiler", offset: 34, length: 7 },

];

expect(expandTextLinks("@user hello", entities)).toBe("@user hello");

});

it("expands a single text_link entity", () => {

const text = "Check this link for details";

const entities = [{ type: "text_link", offset: 11, length: 4, url: "https://example.com" }];

expect(expandTextLinks(text, entities)).toBe(

"Check this [link](https://example.com) for details",

expect(renderTelegramTextEntities(text, entities)).toBe(

"**bold** _italic_ `code` ~~strike~~ __underline__ ||spoiler||",

);

});

it("expands multiple text_link entities", () => {

const text = "Visit Google or GitHub for more";

const entities = [

{ type: "text_link", offset: 6, length: 6, url: "https://google.com" },

{ type: "text_link", offset: 16, length: 6, url: "https://github.com" },

];

expect(expandTextLinks(text, entities)).toBe(

"Visit [Google](https://google.com) or [GitHub](https://github.com) for more",

);

it("renders pre entities with language fences", () => {

const text = "const value = 1;";

const entities = [{ type: "pre", offset: 0, length: text.length, language: "ts" }];

expect(renderTelegramTextEntities(text, entities)).toBe("```ts\nconst value = 1;\n```");

});

it("handles adjacent text_link entities", () => {

const text = "AB";

it("uses a pre fence that cannot close inside content", () => {

const text = "before\n```\ninside";

const entities = [{ type: "pre", offset: 0, length: text.length, language: "md" }];

expect(renderTelegramTextEntities(text, entities)).toBe("````md\nbefore\n```\ninside\n````");

});

it("renders links and formatting from original offsets", () => {

const text = "Read docs now";

const entities = [

{ type: "text_link", offset: 0, length: 1, url: "https://a.example" },

{ type: "text_link", offset: 1, length: 1, url: "https://b.example" },

{ type: "bold", offset: 5, length: 4 },

{ type: "text_link", offset: 5, length: 4, url: "https://docs.example" },

{ type: "italic", offset: 10, length: 3 },

];

expect(expandTextLinks(text, entities)).toBe("[A](https://a.example)[B](https://b.example)");

expect(renderTelegramTextEntities(text, entities)).toBe(

"Read **[docs](https://docs.example)** _now_",

);

});

it("preserves offsets from the original string", () => {

const text = " Hello world";

const entities = [{ type: "text_link", offset: 1, length: 5, url: "https://example.com" }];

expect(expandTextLinks(text, entities)).toBe(" [Hello](https://example.com) world");

it("uses UTF-16 Telegram offsets", () => {

const text = "Hi 😀 bold";

const entities = [{ type: "bold", offset: 6, length: 4 }];

expect(renderTelegramTextEntities(text, entities)).toBe("Hi 😀 **bold**");

});

});