test: emit empty metadata before emitting unspecified error (#1801)

alexander-fenster · web-flow · commit 14ef0318db75 · 2023-02-10T11:56:41.000+05:30
* test: emit empty metadata before emitting unspecified error

* test: bump typescript version in fixtures
diff --git a/system-test/fixtures/sample/package.json b/system-test/fixtures/sample/package.json
@@ -17,7 +17,7 @@
   },
   "devDependencies": {
     "@types/node": "^18.0.0",
-    "typescript": "^3.0.0",
+    "typescript": "^4.0.0",
     "gts": "^3.0.0"
   }
 }
diff --git a/test/mockserver/mockspanner.ts b/test/mockserver/mockspanner.ts
@@ -616,6 +616,7 @@ export class MockSpanner {
               call.write(MockSpanner.toPartialResultSet(res.updateCount));
               break;
             case StatementResultType.ERROR:
+              call.sendMetadata(new Metadata());
               call.emit('error', res.error);
               break;
             default:
@@ -633,6 +634,7 @@ export class MockSpanner {
         call.end();
       })
       .catch(err => {
+        call.sendMetadata(new Metadata());
         call.emit('error', err);
         call.end();
       });
