/**
* renderSiteIdentity() Tests
*
* Bug context (#831): user-configured site favicons were not emitted into
* `` by core. The 17 template `Base.astro` files emitted their own
* `` but only when the template had been updated post
* #448, and even then dropped the `type` attribute, so SVG favicons did
* not render in Chromium browsers (which require `type="image/svg+xml"`
* when the URL has no `.svg` extension).
*
* Fix: a first-party `renderSiteIdentity()` helper that emits the favicon
* tag with the correct MIME type. Lives outside the plugin contribution
* pipeline because that pipeline's `isSafeHref` check rejects same-origin
* paths like `/_emdash/api/media/file/...`.
*/
import { describe, it, expect } from "vitest";
import { renderSiteIdentity } from "../../../src/page/site-identity.js";
describe("renderSiteIdentity", () => {
it("returns empty string when no input provided", () => {
expect(renderSiteIdentity(undefined)).toBe("");
});
it("returns empty string when input has no favicon", () => {
expect(renderSiteIdentity({})).toBe("");
});
it("returns empty string when favicon has no resolved URL", () => {
// Unresolved MediaReference (no url field) should be a no-op.
expect(
renderSiteIdentity({
favicon: { mediaId: "med_123" },
}),
).toBe("");
});
it("emits link tag for favicon with URL", () => {
const html = renderSiteIdentity({
favicon: {
mediaId: "med_123",
url: "/_emdash/api/media/file/abc.png",
contentType: "image/png",
},
});
expect(html).toBe('');
});
it("includes type attribute for SVG favicons (the #831 bug)", () => {
// SVG URLs from EmDash are extension-less (`/_emdash/api/media/file/`),
// so without `type="image/svg+xml"` Chromium will not render them.
const html = renderSiteIdentity({
favicon: {
mediaId: "med_svg",
url: "/_emdash/api/media/file/01KNTC51CKNJG1RFP3YV93BR17",
contentType: "image/svg+xml",
},
});
expect(html).toContain('type="image/svg+xml"');
});
it("omits type attribute when contentType is not set", () => {
// Tolerate older stored references that predate contentType resolution.
const html = renderSiteIdentity({
favicon: {
mediaId: "med_legacy",
url: "/_emdash/api/media/file/legacy.ico",
},
});
expect(html).toBe('');
expect(html).not.toContain("type=");
});
it("escapes hostile content in href and type", () => {
// MediaReference URLs come from a controlled construction in
// resolveMediaReference, but the renderer should still escape attribute
// contents defensively.
const html = renderSiteIdentity({
favicon: {
mediaId: "med_x",
url: '/path">',
contentType: 'image/png">");
expect(html).toContain(""");
expect(html).toContain("<");
});
});