fix(test): repair marketplace PNG fixture

.github/scripts/test-plan.mjs

@@ -145,6 +145,12 @@ const RULES = [
 		lanes: ["unit", "integration", "browser", "browser_embeds"],
 		unitMode: "full",
 	},
+	{
+		name: "marketplace image fixture",
+		matches: (path) => path.startsWith("packages/plugins/marketplace-test/"),
+		lanes: ["unit", "integration", "e2e_table"],
+		unitMode: "full",
+	},
 	{
 		name: "plugin fixtures",
 		matches: (path) => path.startsWith("packages/plugins/"),

.github/scripts/test-plan.test.mjs

@@ -78,6 +78,19 @@ describe("test plan", () => {
 		assert.equal(plan.visual, false);
 	});
 
+	it("runs cross-browser image coverage for marketplace fixture changes", () => {
+		const plan = createTestPlan(["packages/plugins/marketplace-test/src/plugin.ts"]);
+
+		assert.equal(plan.unit, true);
+		assert.equal(plan.integration, true);
+		assert.equal(plan.e2e_table, true);
+		assert.equal(plan.unit_mode, "full");
+		assert.equal(plan.full, false);
+
+		const otherFixture = createTestPlan(["packages/plugins/sandboxed-test/src/plugin.ts"]);
+		assert.equal(otherFixture.e2e_table, false);
+	});
+
 	it("identifies changed package roots for focused unit tests", () => {
 		const plan = createTestPlan([
 			"packages/marketplace/src/index.ts",

e2e/tests/plugin-fixture-image.spec.ts

@@ -0,0 +1,28 @@
+import { expect, test } from "../fixtures/index.js";
+
+test("serves a decodable marketplace fixture PNG @table-cross-engine", async ({
+	page,
+	request,
+}) => {
+	const response = await request.get("/_emdash/api/plugins/marketplace-test/fixture-image");
+	expect(response.ok()).toBe(true);
+	expect(response.headers()["content-type"]).toContain("image/png");
+
+	const dimensions = await page.evaluate(
+		async (bytes) => {
+			const image = new Image();
+			const url = URL.createObjectURL(new Blob([new Uint8Array(bytes)], { type: "image/png" }));
+			try {
+				image.src = url;
+				await image.decode();
+				return { width: image.naturalWidth, height: image.naturalHeight };
+			} finally {
+				URL.revokeObjectURL(url);
+			}
+		},
+		[...(await response.body())],
+	);
+
+	expect(dimensions.width).toBeGreaterThan(0);
+	expect(dimensions.height).toBeGreaterThan(0);
+});

packages/plugins/marketplace-test/src/plugin.ts

@@ -26,7 +26,7 @@ const deleteRecordMcpOutput = z.object({ deleted: z.boolean() });
 const fixturePng = new Uint8Array([
 	137, 80, 78, 71, 13, 10, 26, 10, 0, 0, 0, 13, 73, 72, 68, 82, 0, 0, 0, 1, 0, 0, 0, 1, 8, 4, 0, 0,
 	0, 181, 28, 12, 2, 0, 0, 0, 11, 73, 68, 65, 84, 120, 218, 99, 252, 255, 31, 0, 3, 3, 2, 0, 239,
-	191, 105, 69, 0, 0, 0, 0, 73, 69, 78, 68, 174, 66, 96, 130,
+	162, 167, 91, 0, 0, 0, 0, 73, 69, 78, 68, 174, 66, 96, 130,
 ]);
 
 type RedirectCreateProbeInput = RedirectCreateInput & { auto?: unknown };

playwright.table.config.ts

@@ -3,7 +3,7 @@ import { defineConfig, devices } from "@playwright/test";
 import baseConfig from "./playwright.config";
 
 export default defineConfig(baseConfig, {
-	testMatch: "portable-text-table.spec.ts",
+	testMatch: ["portable-text-table.spec.ts", "plugin-fixture-image.spec.ts"],
 	testIgnore: [],
 	timeout: 60_000,
 	projects: [