chore: import upstream snapshot with attribution

2026-07-13 12:30:05 +08:00
commit 51d876a392
274 changed files with 121542 additions and 0 deletions
@@ -0,0 +1,43 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import fs from 'node:fs';
+import path from 'node:path';
+import zlib from 'node:zlib';
+
+/**
+ * Reads a gzipped JSON file, decompresses it, parses the JSON,
+ * and returns a Uint8Array buffer of the parsed data.
+ * @param filePath The path to the .json.gz file.
+ * @returns A Uint8Array containing the stringified JSON data.
+ */
+export function loadTraceAsBuffer(filePath: string): Uint8Array {
+  try {
+    const compressedData = fs.readFileSync(
+      path.join(
+        import.meta.dirname,
+        // Get back up to the root directory as fixtures aren't moved ito the build/ dir.
+        '..',
+        '..',
+        '..',
+        '..',
+        'tests',
+        'trace-processing',
+        'fixtures',
+        filePath,
+      ),
+    );
+    const decompressedData = zlib.gunzipSync(compressedData);
+    const jsonString = decompressedData.toString('utf-8');
+    const jsonObject = JSON.parse(jsonString);
+    const finalBuffer = Buffer.from(JSON.stringify(jsonObject));
+    const uint8Array = new Uint8Array(finalBuffer);
+    return uint8Array;
+  } catch (error) {
+    console.error('Error parsing the file:', error);
+    throw error;
+  }
+}