Update declarer.dart
diff --git a/pkgs/test_api/lib/src/backend/declarer.dart b/pkgs/test_api/lib/src/backend/declarer.dart
index 56f107e..658eb3f 100644
--- a/pkgs/test_api/lib/src/backend/declarer.dart
+++ b/pkgs/test_api/lib/src/backend/declarer.dart
@@ -312,7 +312,9 @@
/// Registers a function to be called after all tests in the test library are completed.
void addTearDownLibrary(dynamic Function() callback) {
var declarer = this;
- while (declarer._parent != null) declarer = declarer._parent!;
+ while (declarer._parent != null) {
+ declarer = declarer._parent!;
+ }
declarer.addTearDownAll(callback);
}