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Tests: cover grapheme terminal width

This commit is contained in:
Vincent Koc 2026-03-10 10:49:39 -04:00
parent ccc7003360
commit 7a8316706c
1 changed files with 13 additions and 1 deletions
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14
src/terminal/ansi.test.ts
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@ -1,5 +1,5 @@
import { describe, expect, it } from "vitest";
import { sanitizeForLog, stripAnsi } from "./ansi.js";
import { sanitizeForLog, splitGraphemes, stripAnsi, visibleWidth } from "./ansi.js";
describe("terminal ansi helpers", () => {
it("strips ANSI and OSC8 sequences", () => {
@ -11,4 +11,16 @@ describe("terminal ansi helpers", () => {
const input = "\u001B[31mwarn\u001B[0m\r\nnext\u0000line\u007f";
expect(sanitizeForLog(input)).toBe("warnnextline");
});
it("measures wide graphemes by terminal cell width", () => {
expect(visibleWidth("abc")).toBe(3);
expect(visibleWidth("📸 skill")).toBe(8);
expect(visibleWidth("表")).toBe(2);
expect(visibleWidth("\u001B[31m📸\u001B[0m")).toBe(2);
});
it("keeps emoji zwj sequences as single graphemes", () => {
expect(splitGraphemes("👨‍👩‍👧‍👦")).toEqual(["👨‍👩‍👧‍👦"]);
expect(visibleWidth("👨‍👩‍👧‍👦")).toBe(2);
});
});