diff --git a/.gitea/workflows/firefox-extension.yml b/.gitea/workflows/firefox-extension.yml
index 2fac9ef..4a5c567 100644
--- a/.gitea/workflows/firefox-extension.yml
+++ b/.gitea/workflows/firefox-extension.yml
@@ -2,13 +2,31 @@ name: Firefox Extension CI
on:
pull_request:
+ # edited: removing the WIP: prefix starts the real run.
+ types: [opened, synchronize, reopened, edited]
push:
branches:
- develop
- main
+ workflow_dispatch:
+
+# The gate and concurrency use the github.* context, Gitea's alias for gitea.*:
+# it is the form the pattern was canaried with and the one pr-flow detects.
+concurrency:
+ group: ${{ github.workflow }}-${{ github.ref }}
+ # Cancel superseded PR runs, never a push run: main's push uploads the package.
+ cancel-in-progress: ${{ github.event_name == 'pull_request' }}
jobs:
validate:
+ # WIP gate: skip PRs titled WIP: so early PRs cost no run per push. Gate on
+ # the title and nothing else, since a skipped job reports success on the
+ # required check (see ~/.claude/docs/gitea-ci-pattern.md).
+ if: >-
+ github.event_name != 'pull_request' || (
+ !startsWith(github.event.pull_request.title, 'WIP:') &&
+ !startsWith(github.event.pull_request.title, '[WIP]')
+ )
runs-on: ubuntu-latest
steps:
- name: Check out repository
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c2587e8..47ace30 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,8 @@ in 1.1.0, which was never published there.
actions, with optional translation and a preferred language or language dialog.
- Preserve dedicated action instructions when shortening selections; ask before
sending shortened text and reject URLs that cannot be sent intact.
+- Stay responsive with very large selections from the shortcut or toolbar: only
+ the part that can fit in the ChatGPT link is processed.
- Add accessible action dialogs with cancellation and retry, remove the temporary
model/effort URL probe, and document URL sharing. No new permissions.
- Show up front, in the options panel and README, that ChatGPT may require
diff --git a/README.md b/README.md
index e2dba84..48e80c4 100644
--- a/README.md
+++ b/README.md
@@ -74,6 +74,7 @@ Open `about:addons`, select this extension, and choose the **Options** tab
guarantee.
- **Open in** — a new tab, a new background tab, or a new window.
- **Prompt template** — wraps your text, for example `Explain simply: {query}`.
+ Up to 1,000 characters.
Restore defaults resets extension preferences to Simple mode with translation
hidden; it does not change Firefox's search engine or shortcut settings.
diff --git a/lib/actions.js b/lib/actions.js
index 48737ee..442c0ad 100644
--- a/lib/actions.js
+++ b/lib/actions.js
@@ -13,7 +13,6 @@ const TITLES = {
};
export function getContext(info) {
- if (info.inputType === 'password') return null;
if (typeof info.selectionText === 'string' && info.selectionText.trim()) {
return { kind: 'selection', source: info.selectionText.trim() };
}
diff --git a/lib/build-url.js b/lib/build-url.js
index 5e836e8..a9f11b8 100644
--- a/lib/build-url.js
+++ b/lib/build-url.js
@@ -12,9 +12,6 @@ const BASE = "https://chatgpt.com/";
export const MAX_URL_CHARS = 8000;
-// Fraction of the kept text within which a whitespace cut is preferred.
-const WHITESPACE_WINDOW = 0.9;
-
export function applyTemplate(template, query) {
if (query === "") {
return "";
@@ -42,65 +39,9 @@ function addOptionalParams(url, settings) {
return url;
}
-function lastWhitespaceIndex(text) {
- for (let i = text.length - 1; i >= 0; i -= 1) {
- if (/\s/.test(text[i])) {
- return i;
- }
- }
- return -1;
-}
-
-// Returns the longest prefix of `prompt` whose finished URL fits the budget.
-// Slicing happens by CODE POINT on the decoded string, so a surrogate pair can
-// never be split and a percent-escape can never be severed (encoding happens
-// afterwards, via URLSearchParams).
-function fitToBudget(prompt, settings) {
- const codePoints = Array.from(prompt);
-
- const urlLengthFor = (count) => {
- const url = new URL(BASE);
- url.searchParams.set("q", codePoints.slice(0, count).join(""));
- addOptionalParams(url, settings);
- return url.href.length;
- };
-
- if (urlLengthFor(codePoints.length) <= MAX_URL_CHARS) {
- return prompt;
- }
-
- let low = 0;
- let high = codePoints.length;
- while (low < high) {
- const mid = Math.floor((low + high + 1) / 2);
- if (urlLengthFor(mid) <= MAX_URL_CHARS) {
- low = mid;
- } else {
- high = mid - 1;
- }
- }
-
- const kept = codePoints.slice(0, low).join("");
- const boundary = Math.floor(kept.length * WHITESPACE_WINDOW);
- const cut = lastWhitespaceIndex(kept);
- return cut >= boundary && cut > 0 ? kept.slice(0, cut) : kept;
-}
-
-export function buildChatGptUrl(settings, rawQuery) {
- const query = String(rawQuery ?? "").trim();
- const prompt = fitToBudget(applyTemplate(settings.promptTemplate, query), settings);
-
- // q first, matching the most-cited working examples. Total serialized length
- // is order-independent, so measuring without q above is sound.
- const url = new URL(BASE);
- if (prompt !== "") {
- url.searchParams.set("q", prompt);
- }
- addOptionalParams(url, settings);
- return url.href;
-}
-
-// Encode a complete prompt without silently shortening it.
+// Encode a complete prompt without silently shortening it; prepareAction owns
+// the length budget and asks before shortening. q goes first, matching the
+// most-cited working examples.
export function serializePrompt(settings, prompt) {
const url = new URL(BASE);
if (prompt) url.searchParams.set("q", prompt);
diff --git a/lib/defaults.js b/lib/defaults.js
index fcf5e57..fc8e59c 100644
--- a/lib/defaults.js
+++ b/lib/defaults.js
@@ -3,6 +3,12 @@
export const OPEN_IN_VALUES = ["new-tab", "background-tab", "new-window"];
+// In UTF-16 units, as maxlength counts. Keeps the template far inside
+// storage.sync's 8192-byte item quota even when every character is a pasted
+// control character (six bytes once JSON-escaped), and far beyond any template
+// the 8,000-character URL budget could send.
+export const MAX_TEMPLATE_CHARS = 1000;
+
export const DEFAULT_SETTINGS = {
contextMenuMode: "simple",
showTranslate: false,
diff --git a/lib/prepare-action.js b/lib/prepare-action.js
index 8726a2c..53ee9f7 100644
--- a/lib/prepare-action.js
+++ b/lib/prepare-action.js
@@ -25,12 +25,23 @@ export function prepareAction(request) {
}
const resolved = { ...request, language };
const serialize = text => serializePrompt(request.settings, renderPrompt(resolved, text));
- const url = serialize(source);
- if (url.length <= MAX_URL_CHARS) return { kind: 'ready', url };
+ // Each code point adds at least one URL character, so none past the first
+ // MAX_URL_CHARS can fit. Capping first keeps a select-all on a huge page from
+ // costing seconds of re-encoding. A capped source is never sent as ready: its
+ // kept prefix may trim down to something that fits and silently drop the rest.
+ const points = [];
+ let capped = false;
+ for (const point of source) {
+ if (points.length === MAX_URL_CHARS) { capped = true; break; }
+ points.push(point);
+ }
+ if (!capped) {
+ const url = serialize(source);
+ if (url.length <= MAX_URL_CHARS) return { kind: 'ready', url };
+ }
if (isUrl) return error('This URL is too long to send intact. No part of it has been sent.');
const marker = '\n[Selected text shortened]';
if (serialize(marker).length >= MAX_URL_CHARS) return error('The prompt instructions are too long. Shorten your prompt template and try again.');
- const points = Array.from(source);
let low = 0, high = points.length;
while (low < high) {
const mid = Math.ceil((low + high) / 2);
diff --git a/lib/settings.js b/lib/settings.js
index 978b926..068a1ba 100644
--- a/lib/settings.js
+++ b/lib/settings.js
@@ -1,4 +1,4 @@
-import { DEFAULT_SETTINGS, OPEN_IN_VALUES } from "./defaults.js";
+import { DEFAULT_SETTINGS, MAX_TEMPLATE_CHARS, OPEN_IN_VALUES } from "./defaults.js";
export function normalizeLanguage(value) {
if (typeof value !== "string") return "";
@@ -28,7 +28,7 @@ export function mergeSettings(stored) {
if (OPEN_IN_VALUES.includes(stored.openIn)) {
merged.openIn = stored.openIn;
}
- if (typeof stored.promptTemplate === "string") {
+ if (typeof stored.promptTemplate === "string" && stored.promptTemplate.length <= MAX_TEMPLATE_CHARS) {
merged.promptTemplate = stored.promptTemplate;
}
return merged;
diff --git a/options/options.html b/options/options.html
index 127b569..0b852e5 100644
--- a/options/options.html
+++ b/options/options.html
@@ -80,8 +80,8 @@
-
-
{query} is replaced with your selected text. Used by Ask normally, Simple mode, the toolbar button, and the keyboard shortcut. Other advanced actions use their own prompts.
+
+
{query} is replaced with your selected text. Used by Ask normally, Simple mode, the toolbar button, and the keyboard shortcut. Other advanced actions use their own prompts. Up to 1,000 characters.
diff --git a/test/actions.test.js b/test/actions.test.js
index 193ac02..fef2432 100644
--- a/test/actions.test.js
+++ b/test/actions.test.js
@@ -9,7 +9,6 @@ test('context prioritizes selection over link and excludes unrelated targets', (
assert.deepEqual(actions.getContext({selectionText:' ',linkUrl:'https://example.com'}), {kind:'link',source:'https://example.com'});
assert.equal(actions.getContext({mediaType:'image',pageUrl:'https://example.com'}), null);
assert.equal(actions.getContext({editable:true,pageUrl:'https://example.com'}), null);
- assert.equal(actions.getContext({selectionText:'secret',inputType:'password'}), null);
assert.equal(actions.getContext({pageUrl:'https://example.com'}).kind, 'page');
});
test('selection actions and optional translation reflect settings', () => {
diff --git a/test/build-url.test.js b/test/build-url.test.js
index 667ef4c..cf513ac 100644
--- a/test/build-url.test.js
+++ b/test/build-url.test.js
@@ -2,168 +2,86 @@ import test from "node:test";
import assert from "node:assert/strict";
import { DEFAULT_SETTINGS } from "../lib/defaults.js";
-import { buildChatGptUrl, MAX_URL_CHARS } from "../lib/build-url.js";
+import { applyTemplate, serializePrompt } from "../lib/build-url.js";
const withSettings = (overrides) => ({ ...DEFAULT_SETTINGS, ...overrides });
const queryOf = (url) => new URL(url).searchParams.get("q");
const paramsOf = (url) => [...new URL(url).searchParams.keys()];
test("defaults produce only the q parameter on the root path", () => {
- assert.equal(
- buildChatGptUrl(DEFAULT_SETTINGS, "hello"),
- "https://chatgpt.com/?q=hello",
- );
+ assert.equal(serializePrompt(DEFAULT_SETTINGS, "hello"), "https://chatgpt.com/?q=hello");
});
-test("an empty or whitespace-only query omits q entirely", () => {
- for (const raw of ["", " ", "\n\t", null, undefined]) {
- const url = buildChatGptUrl(DEFAULT_SETTINGS, raw);
- assert.equal(paramsOf(url).includes("q"), false, `raw=${JSON.stringify(raw)}`);
- assert.equal(url, "https://chatgpt.com/");
+test("an empty prompt omits q entirely", () => {
+ assert.equal(serializePrompt(DEFAULT_SETTINGS, ""), "https://chatgpt.com/");
+ for (const template of ["{query}", "Explain: {query}", "Be concise:", ""]) {
+ assert.equal(applyTemplate(template, ""), "", `template=${JSON.stringify(template)}`);
}
});
test("legacy model values never add a model URL parameter", () => {
- assert.equal(buildChatGptUrl(withSettings({ model: "gpt-5.6-sol" }), "hi"),
- buildChatGptUrl(DEFAULT_SETTINGS, "hi"));
+ assert.equal(serializePrompt(withSettings({ model: "gpt-5.6-sol" }), "hi"),
+ serializePrompt(DEFAULT_SETTINGS, "hi"));
});
test("temporaryChat and webSearch each appear only when enabled", () => {
- assert.equal(paramsOf(buildChatGptUrl(DEFAULT_SETTINGS, "hi")).includes("temporary-chat"), false);
- assert.equal(paramsOf(buildChatGptUrl(DEFAULT_SETTINGS, "hi")).includes("hints"), false);
+ assert.deepEqual(paramsOf(serializePrompt(DEFAULT_SETTINGS, "hi")), ["q"]);
- const temp = new URL(buildChatGptUrl(withSettings({ temporaryChat: true }), "hi"));
+ const temp = new URL(serializePrompt(withSettings({ temporaryChat: true }), "hi"));
assert.equal(temp.searchParams.get("temporary-chat"), "true");
- const search = new URL(buildChatGptUrl(withSettings({ webSearch: true }), "hi"));
+ const search = new URL(serializePrompt(withSettings({ webSearch: true }), "hi"));
assert.equal(search.searchParams.get("hints"), "search");
});
-test("all three URL-affecting settings combine, q first", () => {
- const url = buildChatGptUrl(
- withSettings({
- temporaryChat: true,
- webSearch: true,
- promptTemplate: "Explain: {query}",
- }),
- "entropy",
- );
+test("all URL-affecting settings combine, q first", () => {
+ const settings = withSettings({ temporaryChat: true, webSearch: true, promptTemplate: "Explain: {query}" });
+ const url = serializePrompt(settings, applyTemplate(settings.promptTemplate, "entropy"));
assert.deepEqual(paramsOf(url), ["q", "temporary-chat", "hints"]);
assert.equal(queryOf(url), "Explain: entropy");
});
test("openIn never influences the URL", () => {
- const base = buildChatGptUrl(DEFAULT_SETTINGS, "hi");
+ const base = serializePrompt(DEFAULT_SETTINGS, "hi");
for (const openIn of ["new-tab", "background-tab", "new-window"]) {
- assert.equal(buildChatGptUrl(withSettings({ openIn }), "hi"), base);
+ assert.equal(serializePrompt(withSettings({ openIn }), "hi"), base);
}
});
test("special characters survive encoding round-trip", () => {
const raw = 'a & b # c ? d = e + f "g" 100% 😀 日本語\nnewline';
- const url = buildChatGptUrl(DEFAULT_SETTINGS, raw);
+ const url = serializePrompt(DEFAULT_SETTINGS, raw);
assert.equal(queryOf(url), raw);
assert.equal(url.includes(" "), false);
assert.equal(url.includes("#"), false);
});
test("the template replaces every {query} occurrence", () => {
- const url = buildChatGptUrl(withSettings({ promptTemplate: "{query} / {query}" }), "x");
- assert.equal(queryOf(url), "x / x");
+ assert.equal(applyTemplate("{query} / {query}", "x"), "x / x");
});
test("a template without {query} is treated as a prefix, never dropping the query", () => {
- const url = buildChatGptUrl(withSettings({ promptTemplate: "Be concise:" }), "why");
- assert.equal(queryOf(url), "Be concise: why");
+ assert.equal(applyTemplate("Be concise:", "why"), "Be concise: why");
});
test("an empty or whitespace-only template yields the bare query", () => {
- for (const promptTemplate of ["", " "]) {
- assert.equal(queryOf(buildChatGptUrl(withSettings({ promptTemplate }), "why")), "why");
+ for (const template of ["", " "]) {
+ assert.equal(applyTemplate(template, "why"), "why");
}
});
test("a non-string template degrades to the bare query", () => {
- assert.equal(queryOf(buildChatGptUrl(withSettings({ promptTemplate: null }), "why")), "why");
-});
-
-test("an over-long prompt is truncated to fit the URL budget", () => {
- const url = buildChatGptUrl(DEFAULT_SETTINGS, "x".repeat(20000));
- assert.ok(url.length <= MAX_URL_CHARS, `length was ${url.length}`);
- assert.ok(queryOf(url).length > 0);
- assert.ok(queryOf(url).length < 20000);
-});
-
-test("truncation accounts for the other parameters", () => {
- const settings = withSettings({ temporaryChat: true, webSearch: true });
- const url = buildChatGptUrl(settings, "x".repeat(20000));
- assert.ok(url.length <= MAX_URL_CHARS, `length was ${url.length}`);
- assert.equal(new URL(url).searchParams.get("hints"), "search");
-});
-
-test("truncation never splits a surrogate pair", () => {
- const url = buildChatGptUrl(DEFAULT_SETTINGS, "😀".repeat(9000));
- assert.ok(url.length <= MAX_URL_CHARS);
- const lonelySurrogate = /[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(? {
- const url = buildChatGptUrl(DEFAULT_SETTINGS, "😀 ".repeat(9000));
- assert.equal(/%[0-9A-Fa-f]?$/.test(url), false);
- assert.doesNotThrow(() => decodeURIComponent(new URL(url).search.slice(3)));
-});
-
-test("truncation prefers a whitespace boundary, so no word is cut in half", () => {
- const url = buildChatGptUrl(DEFAULT_SETTINGS, "lorem ipsum ".repeat(2000));
- const tokens = queryOf(url).trim().split(/\s+/);
- assert.ok(tokens.length > 1);
- for (const token of tokens) {
- assert.ok(token === "lorem" || token === "ipsum", `truncated mid-word: ${token}`);
- }
-});
-
-test("a query needing no truncation is left byte-identical", () => {
- const raw = "a modest question about thermodynamics";
- assert.equal(queryOf(buildChatGptUrl(DEFAULT_SETTINGS, raw)), raw);
+ assert.equal(applyTemplate(null, "why"), "why");
});
// String.prototype.replaceAll gives $&, $`, $', and $$ special meaning in the
// REPLACEMENT string, and `query` (arbitrary page-selected text) is exactly
// that argument. These selections are ordinary shell one-liners, not
// adversarial input, and must round-trip byte-identically into `q`.
-test("a selection containing $& survives the default {query} template byte-identically", () => {
- const raw = "awk print $& here";
- const url = buildChatGptUrl(DEFAULT_SETTINGS, raw);
- assert.equal(queryOf(url), raw);
-});
-
-test("a selection containing $& survives a prefix template byte-identically", () => {
- const raw = "awk print $& here";
- const url = buildChatGptUrl(withSettings({ promptTemplate: "Explain: {query}" }), raw);
- assert.equal(queryOf(url), `Explain: ${raw}`);
-});
-
-test("a selection containing $` and $' survives the default {query} template byte-identically", () => {
- const raw = "shell $` and $' here";
- const url = buildChatGptUrl(DEFAULT_SETTINGS, raw);
- assert.equal(queryOf(url), raw);
-});
-
-test("a selection containing $` and $' survives a prefix template byte-identically", () => {
- const raw = "shell $` and $' here";
- const url = buildChatGptUrl(withSettings({ promptTemplate: "Explain: {query}" }), raw);
- assert.equal(queryOf(url), `Explain: ${raw}`);
-});
-
-test("a selection containing $$ survives the default {query} template byte-identically", () => {
- const raw = "PID is $$ in bash";
- const url = buildChatGptUrl(DEFAULT_SETTINGS, raw);
- assert.equal(queryOf(url), raw);
-});
-
-test("a selection containing $$ survives a prefix template byte-identically", () => {
- const raw = "PID is $$ in bash";
- const url = buildChatGptUrl(withSettings({ promptTemplate: "Explain: {query}" }), raw);
- assert.equal(queryOf(url), `Explain: ${raw}`);
-});
+for (const raw of ["awk print $& here", "shell $` and $' here", "PID is $$ in bash"]) {
+ test(`a selection containing ${raw.match(/\$./g).join(" and ")} survives templating byte-identically`, () => {
+ assert.equal(applyTemplate("{query}", raw), raw);
+ assert.equal(applyTemplate("Explain: {query}", raw), `Explain: ${raw}`);
+ assert.equal(queryOf(serializePrompt(DEFAULT_SETTINGS, applyTemplate("{query}", raw))), raw);
+ });
+}
diff --git a/test/prepare-action.test.js b/test/prepare-action.test.js
index 840b339..bd496a9 100644
--- a/test/prepare-action.test.js
+++ b/test/prepare-action.test.js
@@ -1,6 +1,7 @@
import test from 'node:test';
import assert from 'node:assert/strict';
import { DEFAULT_SETTINGS } from '../lib/defaults.js';
+import { MAX_URL_CHARS } from '../lib/build-url.js';
const { prepareAction } = await import('../lib/prepare-action.js').catch(()=>({}));
const req = (overrides={}) => ({actionId:'ask',source:'Hello',settings:{...DEFAULT_SETTINGS},...overrides});
test('ready actions preserve source and hints, translation asks only when needed', () => {
@@ -23,6 +24,17 @@ test('URLs are validated and preserved whole, never shortened', () => {
assert.equal(out.kind,'ready');
assert.ok(new URL(out.url).searchParams.get('q').endsWith(source));
});
+test('shortened selections end on a whole word and decode cleanly', () => {
+ assert.equal(typeof prepareAction, 'function');
+ const out=prepareAction(req({source:'lorem ipsum '.repeat(2000)}));
+ assert.equal(out.kind,'shortened');
+ const words=new URL(out.url).searchParams.get('q').replace('[Selected text shortened]','').trim().split(/\s+/);
+ assert.ok(words.length>1);
+ for (const word of words) assert.ok(word==='lorem'||word==='ipsum',`cut mid-word: ${word}`);
+ const emoji=prepareAction(req({source:'😀 '.repeat(9000)}));
+ assert.equal(emoji.kind,'shortened');
+ assert.doesNotThrow(()=>decodeURIComponent(new URL(emoji.url).search.slice(1)));
+});
test('long selections preserve instructions, repetition and Unicode with explicit consent', () => {
assert.equal(typeof prepareAction, 'function');
const settings={...DEFAULT_SETTINGS,promptTemplate:'START {query} AGAIN {query} END',temporaryChat:true,webSearch:true};
@@ -38,3 +50,22 @@ test('long selections preserve instructions, repetition and Unicode with explici
const translated=prepareAction(req({actionId:'translate',language:'Spanish',source:'x'.repeat(20000)}));
assert.equal(translated.kind,'shortened');assert.match(new URL(translated.url).searchParams.get('q'), /Spanish/);
});
+test('huge selections are capped before shortening, with identical output', () => {
+ assert.equal(typeof prepareAction, 'function');
+ // Select-all on a very large page; shortening this took over a second uncapped.
+ const source='😀 word '.repeat(625000);
+ const started=performance.now();
+ const out=prepareAction(req({source}));
+ const elapsed=performance.now()-started;
+ assert.equal(out.kind,'shortened');
+ assert.ok(elapsed<250,`took ${elapsed.toFixed(0)} ms`);
+ const capped=Array.from(source).slice(0,MAX_URL_CHARS).join('');
+ assert.deepEqual(prepareAction(req({source:capped})),out);
+});
+test('a selection too long to send whole always needs consent, even if its start would fit', () => {
+ assert.equal(typeof prepareAction, 'function');
+ // The first MAX_URL_CHARS code points trim down to "a"; sending just that would drop the rest unasked.
+ const out=prepareAction(req({source:'a'+' '.repeat(MAX_URL_CHARS)+'b'}));
+ assert.equal(out.kind,'shortened');
+ assert.ok(new URL(out.url).searchParams.get('q').includes('[Selected text shortened]'));
+});
diff --git a/test/settings.test.js b/test/settings.test.js
index 58b6e13..0f7fb34 100644
--- a/test/settings.test.js
+++ b/test/settings.test.js
@@ -1,7 +1,9 @@
import test from "node:test";
import assert from "node:assert/strict";
-import { DEFAULT_SETTINGS } from "../lib/defaults.js";
+import { readFileSync } from "node:fs";
+
+import { DEFAULT_SETTINGS, MAX_TEMPLATE_CHARS } from "../lib/defaults.js";
import { mergeSettings } from "../lib/settings.js";
test("empty object yields the defaults", () => {
@@ -67,6 +69,30 @@ test("wrong types fall back to the default", () => {
assert.equal(merged.promptTemplate, DEFAULT_SETTINGS.promptTemplate);
});
+test("a prompt template over the length limit falls back to the default", () => {
+ assert.equal(typeof MAX_TEMPLATE_CHARS, "number");
+ const atLimit = "x".repeat(MAX_TEMPLATE_CHARS);
+ assert.equal(mergeSettings({ promptTemplate: atLimit }).promptTemplate, atLimit);
+ assert.equal(mergeSettings({ promptTemplate: `${atLimit}x` }).promptTemplate,
+ DEFAULT_SETTINGS.promptTemplate);
+});
+
+// storage.sync rejects any item over 8192 bytes (key plus JSON value), and the
+// options page writes every field in one set(), so one oversized template would
+// make every later save fail. The worst character is a pasted control
+// character, which JSON escapes to six bytes.
+test("a template at the limit fits storage.sync's per-item quota in the worst case", () => {
+ const worst = "\u0001".repeat(MAX_TEMPLATE_CHARS);
+ const bytes = new TextEncoder().encode("promptTemplate" + JSON.stringify(worst)).length;
+ assert.ok(bytes <= 8192, `${bytes} bytes`);
+});
+
+test("the options page enforces the same template limit", () => {
+ const html = readFileSync(new URL("../options/options.html", import.meta.url), "utf8");
+ const input = html.match(/]*id="promptTemplate"[^>]*>/)?.[0] ?? "";
+ assert.equal(input.match(/maxlength="(\d+)"/)?.[1], String(MAX_TEMPLATE_CHARS));
+});
+
test("an out-of-range openIn falls back to the default", () => {
assert.equal(mergeSettings({ openIn: "teleport" }).openIn, DEFAULT_SETTINGS.openIn);
assert.equal(mergeSettings({ openIn: "" }).openIn, DEFAULT_SETTINGS.openIn);