fix: fix test JSON repr issues

Author: jacek-prisma

libs/driver-adapters/executor/src/qc-test-worker/worker-query.ts

@@ -12,7 +12,6 @@ import {
   type QueryInterpreterTransactionManager,
   QueryPlanNode,
   RawResponse,
-  safeJsonStringify,
   type TransactionManager,
   UserFacingError,
 } from '@prisma/client-engine-runtime'
@@ -302,3 +301,32 @@ function getFullOperationName(query: JsonProtocolQuery): string {
       }
   }
 }
+
+/**
+ * `JSON.stringify` wrapper with custom replacer function that handles nested
+ * BigInt and Buffer values.
+ */
+export function safeJsonStringify(obj: unknown): string {
+  // Recursively convert any values that we cannot pass
+  // to JSON.stringify to a serializable format.
+  // We cannot use the JSON.serialize(obj, transform), because it calls
+  // `toJSON` methods on objects, which we want to avoid.
+  function transformValue(value: unknown): unknown {
+    if (typeof value === 'bigint') {
+      return value.toString()
+    } else if (Buffer.isBuffer(value)) {
+      return value.toString('base64')
+    } else if (Array.isArray(value)) {
+      return value.map(transformValue)
+    } else if (value !== null && typeof value === 'object') {
+      const result: Record<string, unknown> = {}
+      for (const [key, val] of Object.entries(value)) {
+        result[key] = transformValue(val)
+      }
+      return result
+    }
+    return value
+  }
+
+  return JSON.stringify(transformValue(obj))
+}

query-engine/connector-test-kit-rs/query-engine-tests/tests/raw/sql/typed_output.rs

@@ -89,7 +89,11 @@ mod typed_output {
                   42,
                   "9223372036854775807",
                   1.5432,
-                  "AQID",
+                  [
+                    1,
+                    2,
+                    3
+                  ]
                   true,
                   "1900-10-10T01:10:10.001+00:00",
                   "123.4567891",