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fix(tui): trim trailing whitespace in wrapped lines to prevent width overflow

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robinwander 2026-01-04 22:15:25 -06:00 • committed by Robin Wander
parent e4f8215f97
commit 786a326a71
2 changed files with 20 additions and 4 deletions
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19
packages/tui/test/wrap-ansi.test.ts
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@ -12,14 +12,24 @@ describe("wrapTextWithAnsi", () => {
const wrapped = wrapTextWithAnsi(text, 40);
// First line should NOT contain underline code - it's just "read this thread "
assert.strictEqual(wrapped[0], "read this thread ");
// First line should NOT contain underline code - it's just "read this thread"
assert.strictEqual(wrapped[0], "read this thread");
// Second line should start with underline, have URL content
assert.strictEqual(wrapped[1].startsWith(underlineOn), true);
assert.ok(wrapped[1].includes("https://"));
});
it("should not have whitespace before underline reset code", () => {
const underlineOn = "\x1b[4m";
const underlineOff = "\x1b[24m";
const textWithUnderlinedTrailingSpace = `${underlineOn}underlined text here ${underlineOff}more`;
const wrapped = wrapTextWithAnsi(textWithUnderlinedTrailingSpace, 18);
assert.ok(!wrapped[0].includes(` ${underlineOff}`));
});
it("should not bleed underline to padding - each line should end with reset for underline only", () => {
const underlineOn = "\x1b[4m";
const underlineOff = "\x1b[24m";
@ -101,6 +111,11 @@ describe("wrapTextWithAnsi", () => {
}
});
it("should truncate trailing whitespace that exceeds width", () => {
const twoSpacesWrappedToWidth1 = wrapTextWithAnsi(" ", 1);
assert.ok(visibleWidth(twoSpacesWrappedToWidth1[0]) <= 1);
});
it("should preserve color codes across wraps", () => {
const red = "\x1b[31m";
const reset = "\x1b[0m";