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Unified Diff: pkg/scheduled_test/lib/src/utils.dart

Issue 68713004: Fix a synchronous event bug in futureStream. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 7 years, 1 month ago
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Index: pkg/scheduled_test/lib/src/utils.dart
diff --git a/pkg/scheduled_test/lib/src/utils.dart b/pkg/scheduled_test/lib/src/utils.dart
index 9a940cca8dd65b6d4a3f2b8c7e118f17c961be6d..2b8b78ef9e9dfd98143cdaacb6e75f88117ac809 100644
--- a/pkg/scheduled_test/lib/src/utils.dart
+++ b/pkg/scheduled_test/lib/src/utils.dart
@@ -91,9 +91,10 @@ Stream futureStream(Future<Stream> future, {bool broadcast: false}) {
var controller;
future = future.catchError((e, stackTrace) {
- if (controller == null) return;
- controller.addError(e, stackTrace);
- controller.close();
+ // Since [controller] is synchronous, it's likely that emitting an error
+ // will cause it to be cancelled before we call close.
+ if (controller != null) controller.addError(e, stackTrace);
+ if (controller != null) controller.close();
controller = null;
});
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