Checkpoint web parity through Chromium input tasks

web/tests/e2e/glb-desktop-import.spec.ts

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+import fs from "node:fs";
+import path from "node:path";
+import { expect, test } from "@playwright/test";
+
+const root = path.resolve(import.meta.dirname, "../../..");
+const report = JSON.parse(fs.readFileSync(path.join(root, "tests/golden/M12-06A/desktop-fixtures.json"), "utf8"));
+const fixtureRoot = path.join(root, "tests/files/web/m12_glb_desktop_v1");
+
+test("imports the M12-06A desktop GLB fixture group in a Chromium Worker", async ({ page }) => {
+  await page.goto("/");
+  const fixtures = report.fixtures.map((fixture: { id: string; file: string; sha256: string; semantic: unknown }) => ({
+    id: fixture.id,
+    bytes: Array.from(fs.readFileSync(path.join(fixtureRoot, fixture.file))),
+    sourceSha256: fixture.sha256,
+    expected: fixture.semantic,
+  }));
+  const result = await page.evaluate(async (input) => new Promise<Record<string, unknown>>((resolve, reject) => {
+    const worker = new Worker("/src/workers/glb-desktop-import-test.worker.ts", { type: "module" });
+    worker.onmessage = (event: MessageEvent<Record<string, unknown>>) => {
+      worker.terminate();
+      resolve(event.data);
+    };
+    worker.onerror = (event) => {
+      worker.terminate();
+      reject(new Error(event.message));
+    };
+    const transferred = input.map((fixture) => {
+      const bytes = Uint8Array.from(fixture.bytes);
+      return { ...fixture, bytes: bytes.buffer };
+    });
+    worker.postMessage({ fixtures: transferred }, transferred.map((fixture) => fixture.bytes));
+  }), fixtures);
+
+  expect(result.ok).toBe(true);
+  expect(result.results).toEqual([
+    { id: "mesh", sourceSha256: report.fixtures[0].sha256, compatible: true, mismatches: [], topology: 1, attributes: ["COLOR_0", "NORMAL", "POSITION"], materials: 1, nodes: 1, animations: 0 },
+    { id: "pbr", sourceSha256: report.fixtures[1].sha256, compatible: true, mismatches: [], topology: 1, attributes: ["NORMAL", "POSITION"], materials: 1, nodes: 1, animations: 0 },
+    { id: "uv", sourceSha256: report.fixtures[2].sha256, compatible: true, mismatches: [], topology: 1, attributes: ["NORMAL", "POSITION", "TEXCOORD_0"], materials: 1, nodes: 1, animations: 0 },
+    { id: "skin", sourceSha256: report.fixtures[3].sha256, compatible: true, mismatches: [], topology: 1, attributes: ["JOINTS_0", "NORMAL", "POSITION", "WEIGHTS_0"], materials: 1, nodes: 4, animations: 0 },
+    { id: "animation", sourceSha256: report.fixtures[4].sha256, compatible: true, mismatches: [], topology: 1, attributes: ["NORMAL", "POSITION"], materials: 1, nodes: 1, animations: 1 },
+  ]);
+});