diff --git a/test/reject_errors_test.dart b/test/reject_errors_test.dart
index 32bffd1..5b8b3e7 100644
--- a/test/reject_errors_test.dart
+++ b/test/reject_errors_test.dart
@@ -14,7 +14,10 @@
   });
 
   test('passes through data events', () {
-    controller.sink.rejectErrors()..add(1)..add(2)..add(3);
+    controller.sink.rejectErrors()
+      ..add(1)
+      ..add(2)
+      ..add(3);
     expect(controller.stream, emitsInOrder([1, 2, 3]));
   });
 
diff --git a/test/stream_completer_test.dart b/test/stream_completer_test.dart
index ecb5621..5ccf44e 100644
--- a/test/stream_completer_test.dart
+++ b/test/stream_completer_test.dart
@@ -39,7 +39,11 @@
     var done = subscription.asFuture();
     subscription.pause();
     var sourceController = StreamController();
-    sourceController..add(1)..add(2)..add(3)..add(4);
+    sourceController
+      ..add(1)
+      ..add(2)
+      ..add(3)
+      ..add(4);
     controller.setSourceStream(sourceController.stream);
     await flushMicrotasks();
     expect(sourceController.hasListener, isTrue);
diff --git a/test/stream_sink_completer_test.dart b/test/stream_sink_completer_test.dart
index 591f32f..11592bb 100644
--- a/test/stream_sink_completer_test.dart
+++ b/test/stream_sink_completer_test.dart
@@ -19,7 +19,11 @@
     test('data events are forwarded', () {
       var sink = TestSink();
       completer.setDestinationSink(sink);
-      completer.sink..add(1)..add(2)..add(3)..add(4);
+      completer.sink
+        ..add(1)
+        ..add(2)
+        ..add(3)
+        ..add(4);
 
       expect(sink.results[0].asValue!.value, equals(1));
       expect(sink.results[1].asValue!.value, equals(2));
@@ -30,7 +34,9 @@
     test('error events are forwarded', () {
       var sink = TestSink();
       completer.setDestinationSink(sink);
-      completer.sink..addError('oh no')..addError("that's bad");
+      completer.sink
+        ..addError('oh no')
+        ..addError("that's bad");
 
       expect(sink.results[0].asError!.error, equals('oh no'));
       expect(sink.results[1].asError!.error, equals("that's bad"));
@@ -114,7 +120,11 @@
 
   group('when a stream is linked after events are added', () {
     test('data events are forwarded', () async {
-      completer.sink..add(1)..add(2)..add(3)..add(4);
+      completer.sink
+        ..add(1)
+        ..add(2)
+        ..add(3)
+        ..add(4);
       await flushMicrotasks();
 
       var sink = TestSink();
@@ -128,7 +138,9 @@
     });
 
     test('error events are forwarded', () async {
-      completer.sink..addError('oh no')..addError("that's bad");
+      completer.sink
+        ..addError('oh no')
+        ..addError("that's bad");
       await flushMicrotasks();
 
       var sink = TestSink();
diff --git a/test/stream_zip_test.dart b/test/stream_zip_test.dart
index 84948bf..71ce2c4 100644
--- a/test/stream_zip_test.dart
+++ b/test/stream_zip_test.dart
@@ -210,15 +210,26 @@
     expect(
         StreamZip([
           streamError(mks([1, 2, 3, 4]), 4, 'BAD-5'),
-          (StreamController()..add(4)..add(5)..add(6)).stream,
-          (StreamController()..add(7)..add(8)..add(9)).stream
+          (StreamController()
+                ..add(4)
+                ..add(5)
+                ..add(6))
+              .stream,
+          (StreamController()
+                ..add(7)
+                ..add(8)
+                ..add(9))
+              .stream
         ]).toList(),
         throwsA(equals('BAD-5')));
   });
 
   test('Error after first end', () {
     var controller = StreamController();
-    controller..add(7)..add(8)..add(9);
+    controller
+      ..add(7)
+      ..add(8)
+      ..add(9);
     // Transformer that puts error into controller when one of the first two
     // streams have sent a done event.
     var trans =
@@ -298,7 +309,9 @@
       ..add(5)
       ..add(7)
       ..close();
-    c2..add(2)..add(4);
+    c2
+      ..add(2)
+      ..add(4);
   });
 
   test('pause-resume2', () {