Files

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TypeScript

import { expect, test } from "bun:test";
import { createSectionPreset, emailPresets } from "../src/presets.ts";
import { renderEmailPreview } from "../src/browser.ts";
import type { BlockDocument } from "@wrnexus/blocks";
test("every designed preset renders natively without remote placeholder assets", async () => {
for (const preset of emailPresets) {
let id = 0;
const section = createSectionPreset(preset.id, () => `preset-${++id}`);
const document: BlockDocument = {
schemaVersion: 1,
kind: "email",
meta: { subject: "Preset QA" },
theme: { tokens: {} },
root: {
id: "root",
type: "layout.email-document",
version: 1,
props: { width: "600" },
styles: {},
slots: { content: [section] },
},
};
const before = JSON.stringify(document);
const result = await renderEmailPreview(document, {
variables: {
recipientName: "Alex",
organizationAddress: "Company address",
unsubscribeUrl: "https://example.com/unsubscribe",
},
});
expect(result.ok).toBe(true);
if (result.ok) {
expect(result.value.html).not.toContain("placehold.co");
expect(result.value.html).toContain(String(section.props.background));
expect(result.value.text.length).toBeGreaterThan(80);
}
expect(JSON.stringify(document)).toBe(before);
}
});