import assert from "node:assert/strict";
import { readFileSync } from "node:fs";
import test from "node:test";
import { htmlPreviewDocument } from "../web/static/js/preview_content.js";
// preview.js has browser-only top-level bindings, so exercise the integration contract
// through its shipped source and markup while keeping this test dependency-free.
const previewJs = readFileSync(new URL("../web/static/js/preview.js", import.meta.url), "utf8");
const pageHtml = readFileSync(new URL("../web/static/dev.html", import.meta.url), "utf8");
test("HTML is a renderable category rather than plain text", () => {
assert.match(previewJs, /html:\s+new Set\(\["html","htm"\]\)/);
assert.match(previewJs, /frame\.setAttribute\("sandbox", ""\)/);
assert.match(previewJs, /frame\.srcdoc = htmlPreviewDocument\(text\)/);
});
test("HTML preview blocks scripts, navigation, and external resources", () => {
const document = htmlPreviewDocument("xx");
assert.match(document, /"));
assert.doesNotMatch(previewJs, /allow-scripts/);
});
test("HTML fragments receive a restrictive head before their content", () => {
const document = htmlPreviewDocument("报告
");
assert.match(document, /^报告<\/h1>$/);
});
test("main and mini previews expose preview/source mode controls", () => {
for (const prefix of ["fp", "mp"]) {
assert.match(pageHtml, new RegExp(`id="${prefix}-mode-preview"`));
assert.match(pageHtml, new RegExp(`id="${prefix}-mode-source"`));
assert.match(previewJs, new RegExp(`_showRenderableText\\("${prefix}", cat, text\\)`));
}
});