Checkpoint web parity through Chromium input tasks

web/tests/unit/glb-loss-report.test.mjs

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+import assert from "node:assert/strict";
+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(), "glb-loss-report-unit-"));
+const sourcePath = path.join(root, "web/protocol/glb-loss-report.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, []);
+const modulePath = path.join(temporary, "glb-loss-report.mjs");
+fs.writeFileSync(modulePath, transpiled.outputText);
+const protocol = await import(pathToFileURL(modulePath));
+
+test("M12-06D produces deterministic sorted machine loss entries", () => {
+  const snapshot = {
+    sceneId: "scene:test",
+    revision: 7,
+    nodes: [{}, {}],
+    meshes: [{}],
+    materials: [{}, {}],
+    images: [{}],
+    animations: [{}],
+    nonMeshData: [{}],
+  };
+  const report = protocol.createGLBLossReport(snapshot, {
+    canExport: false,
+    warnings: [
+      { code: "Z_LOSS", severity: "warning", message: "z", id: "id:z" },
+      { code: "A_BLOCK", severity: "error", message: "a", id: "id:a" },
+      { code: "A_BLOCK", severity: "warning", message: "b", id: undefined },
+    ],
+  });
+  assert.deepEqual(report, {
+    schemaVersion: 1,
+    operation: "GLB_EXPORT_LOSS_REPORT",
+    sceneId: "scene:test",
+    sourceRevision: 7,
+    canExport: false,
+    errorCount: 1,
+    warningCount: 2,
+    losses: [
+      { code: "A_BLOCK", severity: "error", message: "a", id: "id:a" },
+      { code: "A_BLOCK", severity: "warning", message: "b", id: null },
+      { code: "Z_LOSS", severity: "warning", message: "z", id: "id:z" },
+    ],
+    surface: { nodeCount: 2, meshCount: 1, materialCount: 2, imageCount: 1, animationCount: 1, nonMeshCount: 1 },
+  });
+});
+
+test.after(() => fs.rmSync(temporary, { recursive: true, force: true }));