refactor: move wrap text multiline function tests into fmt module (#4573)

* refactor: move wrap text multiline function tests into fmt module

* lints

---------

Co-authored-by: Alexandr <qwerty541zxc@gmail.com>

tests/fmt.test.js

@@ -1,5 +1,9 @@
 import { describe, expect, it } from "@jest/globals";
-import { formatBytes, kFormatter } from "../src/common/fmt.js";
+import {
+  formatBytes,
+  kFormatter,
+  wrapTextMultiline,
+} from "../src/common/fmt.js";
 
 describe("Test fmt.js", () => {
   it("should test kFormatter default behavior", () => {
@@ -64,4 +68,37 @@ describe("Test fmt.js", () => {
     expect(formatBytes(1234 * 1024)).toBe("1.2 MB");
     expect(formatBytes(123.4 * 1024)).toBe("123.4 KB");
   });
+
+  it("wrapTextMultiline: should not wrap small texts", () => {
+    {
+      let multiLineText = wrapTextMultiline("Small text should not wrap");
+      expect(multiLineText).toEqual(["Small text should not wrap"]);
+    }
+  });
+
+  it("wrapTextMultiline: should wrap large texts", () => {
+    let multiLineText = wrapTextMultiline(
+      "Hello world long long long text",
+      20,
+      3,
+    );
+    expect(multiLineText).toEqual(["Hello world long", "long long text"]);
+  });
+
+  it("wrapTextMultiline: should wrap large texts and limit max lines", () => {
+    let multiLineText = wrapTextMultiline(
+      "Hello world long long long text",
+      10,
+      2,
+    );
+    expect(multiLineText).toEqual(["Hello", "world long..."]);
+  });
+
+  it("wrapTextMultiline: should wrap chinese by punctuation", () => {
+    let multiLineText = wrapTextMultiline(
+      "专门为刚开始刷题的同学准备的算法基地，没有最细只有更细，立志用动画将晦涩难懂的算法说的通俗易懂！",
+    );
+    expect(multiLineText.length).toEqual(3);
+    expect(multiLineText[0].length).toEqual(18 * 8); // &#xxxxx; x 8
+  });
 });