test: speed up telegram suites

src/telegram/bot/helpers.test.ts

@@ -2,6 +2,7 @@ import { describe, expect, it } from "vitest";
 import {
   buildTelegramThreadParams,
   buildTypingThreadParams,
+  expandTextLinks,
   normalizeForwardedContext,
   resolveTelegramForumThreadId,
 } from "./helpers.js";
@@ -120,3 +121,53 @@ describe("normalizeForwardedContext", () => {
     expect(ctx?.date).toBe(111);
   });
 });
+
+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", () => {
+    const entities = [
+      { type: "mention", offset: 0, length: 5 },
+      { type: "bold", offset: 6, length: 5 },
+    ];
+    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",
+    );
+  });
+
+  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("handles adjacent text_link entities", () => {
+    const text = "AB";
+    const entities = [
+      { type: "text_link", offset: 0, length: 1, url: "https://a.example" },
+      { type: "text_link", offset: 1, length: 1, url: "https://b.example" },
+    ];
+    expect(expandTextLinks(text, entities)).toBe("[A](https://a.example)[B](https://b.example)");
+  });
+
+  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");
+  });
+});