Checkpoint web parity through Chromium input tasks

web/tests/unit/io-format-capability-matrix.test.mjs

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+import assert from "node:assert/strict";
+import crypto from "node:crypto";
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+import { pathToFileURL } from "node:url";
+import test from "node:test";
+import ts from "typescript";
+
+const root = path.resolve(import.meta.dirname, "../../..");
+const temporary = fs.mkdtempSync(path.join(os.tmpdir(), "io-format-capability-matrix-unit-"));
+const sourcePath = path.join(root, "web/protocol/io-format-capability-matrix.ts");
+const transpiled = ts.transpileModule(fs.readFileSync(sourcePath, "utf8"), {
+  compilerOptions: { module: ts.ModuleKind.ES2022, target: ts.ScriptTarget.ES2022 },
+  fileName: sourcePath,
+  reportDiagnostics: true,
+});
+assert.deepEqual(transpiled.diagnostics, []);
+fs.writeFileSync(path.join(temporary, "io-format-capability-matrix.mjs"), transpiled.outputText);
+const matrix = await import(pathToFileURL(path.join(temporary, "io-format-capability-matrix.mjs")));
+const manifest = JSON.parse(fs.readFileSync(path.join(root, "tests/golden/M12-05B/manifest.json"), "utf8"));
+const source = JSON.parse(fs.readFileSync(path.join(root, "tests/golden/M12-05B/capability-matrix.json"), "utf8"));
+const sha256 = (file) => crypto.createHash("sha256").update(fs.readFileSync(path.join(root, file))).digest("hex");
+
+test("M12-05B binds the capability matrix and runtime inventory artifacts", () => {
+  assert.equal(manifest.task, "M12-05B");
+  assert.equal(manifest.parentTask, "M12-05A");
+  assert.equal(manifest.nextTask, "M12-05C");
+  for (const artifact of Object.values(manifest.artifacts)) assert.equal(sha256(artifact.path), artifact.sha256, artifact.path);
+});
+
+test("M12-05B accepts the seven-format matrix and keeps the bounded GLB export route explicit", () => {
+  const parsed = matrix.parseIOFormatCapabilityMatrix(source);
+  assert.deepEqual(parsed.formats.map((entry) => entry.format), ["GLTF", "GLB", "OBJ", "STL", "PLY", "USD", "ALEMBIC"]);
+  assert.equal(parsed.formats.find((entry) => entry.format === "GLB").operations.EXPORT.local.status, "READY");
+  assert.equal(parsed.formats.find((entry) => entry.format === "GLB").operations.EXPORT.local.execution, "LOCAL");
+  assert.equal(parsed.formats.find((entry) => entry.format === "GLB").operations.IMPORT.local.status, "BLOCKED");
+  assert.ok(parsed.formats.filter((entry) => entry.operations.IMPORT.local.status === "BLOCKED").length >= 6);
+});
+
+test("M12-05B rejects duplicate formats, ready routes without a real executor, and unverified ready features", () => {
+  assert.throws(() => matrix.parseIOFormatCapabilityMatrix({ ...source, formats: [...source.formats.slice(0, 6), source.formats[0]] }), { code: "ASSET_MANIFEST_INVALID" });
+  const badRoute = structuredClone(source);
+  badRoute.formats.find((entry) => entry.format === "OBJ").operations.IMPORT.local = { status: "READY", execution: "LOCAL", code: null };
+  assert.throws(() => matrix.parseIOFormatCapabilityMatrix(badRoute), { code: "ASSET_MANIFEST_INVALID" });
+  const badFeature = structuredClone(source);
+  badFeature.formats.find((entry) => entry.format === "GLB").operations.EXPORT.geometry.status = "UNVERIFIED";
+  assert.throws(() => matrix.parseIOFormatCapabilityMatrix(badFeature), { code: "ASSET_MANIFEST_INVALID" });
+  const badCode = structuredClone(source);
+  badCode.formats.find((entry) => entry.format === "PLY").operations.EXPORT.local.code = null;
+  assert.throws(() => matrix.parseIOFormatCapabilityMatrix(badCode), { code: "IO_FORMAT_UNSUPPORTED" });
+});
+
+test.after(() => fs.rmSync(temporary, { recursive: true, force: true }));