Fix newly enforced lint (dart-lang/stream_transform#131)

diff --git a/pkgs/stream_transform/test/async_map_buffer_test.dart b/pkgs/stream_transform/test/async_map_buffer_test.dart
index 1280b51..f527a0e 100644
--- a/pkgs/stream_transform/test/async_map_buffer_test.dart
+++ b/pkgs/stream_transform/test/async_map_buffer_test.dart
@@ -4,9 +4,8 @@
 
 import 'dart:async';
 
-import 'package:test/test.dart';
-
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 import 'utils.dart';
 
diff --git a/pkgs/stream_transform/test/async_map_sample_test.dart b/pkgs/stream_transform/test/async_map_sample_test.dart
index 0d2d846..c32b7a7 100644
--- a/pkgs/stream_transform/test/async_map_sample_test.dart
+++ b/pkgs/stream_transform/test/async_map_sample_test.dart
@@ -4,9 +4,8 @@
 
 import 'dart:async';
 
-import 'package:test/test.dart';
-
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 import 'utils.dart';
 
diff --git a/pkgs/stream_transform/test/async_where_test.dart b/pkgs/stream_transform/test/async_where_test.dart
index a90210c..43f0239 100644
--- a/pkgs/stream_transform/test/async_where_test.dart
+++ b/pkgs/stream_transform/test/async_where_test.dart
@@ -3,9 +3,8 @@
 // BSD-style license that can be found in the LICENSE file.
 import 'dart:async';
 
-import 'package:test/test.dart';
-
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 void main() {
   test('forwards only events that pass the predicate', () async {
diff --git a/pkgs/stream_transform/test/audit_test.dart b/pkgs/stream_transform/test/audit_test.dart
index 20c7d9f..e06c962 100644
--- a/pkgs/stream_transform/test/audit_test.dart
+++ b/pkgs/stream_transform/test/audit_test.dart
@@ -4,8 +4,8 @@
 
 import 'dart:async';
 
-import 'package:test/test.dart';
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 import 'utils.dart';
 
diff --git a/pkgs/stream_transform/test/buffer_test.dart b/pkgs/stream_transform/test/buffer_test.dart
index b528fa2..68f3847 100644
--- a/pkgs/stream_transform/test/buffer_test.dart
+++ b/pkgs/stream_transform/test/buffer_test.dart
@@ -3,9 +3,8 @@
 // BSD-style license that can be found in the LICENSE file.
 import 'dart:async';
 
-import 'package:test/test.dart';
-
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 import 'utils.dart';
 
diff --git a/pkgs/stream_transform/test/combine_latest_all_test.dart b/pkgs/stream_transform/test/combine_latest_all_test.dart
index 2943449..f4b719c 100644
--- a/pkgs/stream_transform/test/combine_latest_all_test.dart
+++ b/pkgs/stream_transform/test/combine_latest_all_test.dart
@@ -4,9 +4,8 @@
 
 import 'dart:async';
 
-import 'package:test/test.dart';
-
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 Future<void> tick() => Future(() {});
 
diff --git a/pkgs/stream_transform/test/combine_latest_test.dart b/pkgs/stream_transform/test/combine_latest_test.dart
index 2b35e2c..8c4b66f 100644
--- a/pkgs/stream_transform/test/combine_latest_test.dart
+++ b/pkgs/stream_transform/test/combine_latest_test.dart
@@ -5,9 +5,8 @@
 import 'dart:async';
 
 import 'package:pedantic/pedantic.dart';
-import 'package:test/test.dart';
-
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 void main() {
   group('combineLatest', () {
diff --git a/pkgs/stream_transform/test/concurrent_async_map_test.dart b/pkgs/stream_transform/test/concurrent_async_map_test.dart
index a894e7f..c47ff87 100644
--- a/pkgs/stream_transform/test/concurrent_async_map_test.dart
+++ b/pkgs/stream_transform/test/concurrent_async_map_test.dart
@@ -4,9 +4,8 @@
 
 import 'dart:async';
 
-import 'package:test/test.dart';
-
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 import 'utils.dart';
 
diff --git a/pkgs/stream_transform/test/debounce_test.dart b/pkgs/stream_transform/test/debounce_test.dart
index 9031db5..38ee436 100644
--- a/pkgs/stream_transform/test/debounce_test.dart
+++ b/pkgs/stream_transform/test/debounce_test.dart
@@ -4,8 +4,8 @@
 
 import 'dart:async';
 
-import 'package:test/test.dart';
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 import 'utils.dart';
 
diff --git a/pkgs/stream_transform/test/followd_by_test.dart b/pkgs/stream_transform/test/followd_by_test.dart
index fbe904a..69b0a99 100644
--- a/pkgs/stream_transform/test/followd_by_test.dart
+++ b/pkgs/stream_transform/test/followd_by_test.dart
@@ -3,9 +3,8 @@
 // BSD-style license that can be found in the LICENSE file.
 import 'dart:async';
 
-import 'package:test/test.dart';
-
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 import 'utils.dart';
 
diff --git a/pkgs/stream_transform/test/from_handlers_test.dart b/pkgs/stream_transform/test/from_handlers_test.dart
index 7ae3368..f2f3546 100644
--- a/pkgs/stream_transform/test/from_handlers_test.dart
+++ b/pkgs/stream_transform/test/from_handlers_test.dart
@@ -4,9 +4,8 @@
 
 import 'dart:async';
 
-import 'package:test/test.dart';
-
 import 'package:stream_transform/src/from_handlers.dart';
+import 'package:test/test.dart';
 
 void main() {
   late StreamController<int> values;
diff --git a/pkgs/stream_transform/test/merge_test.dart b/pkgs/stream_transform/test/merge_test.dart
index 24cd76b..7217945 100644
--- a/pkgs/stream_transform/test/merge_test.dart
+++ b/pkgs/stream_transform/test/merge_test.dart
@@ -4,9 +4,8 @@
 
 import 'dart:async';
 
-import 'package:test/test.dart';
-
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 void main() {
   group('merge', () {
diff --git a/pkgs/stream_transform/test/opt_out_test.dart b/pkgs/stream_transform/test/opt_out_test.dart
index 8ab4fc4..6bd654b 100644
--- a/pkgs/stream_transform/test/opt_out_test.dart
+++ b/pkgs/stream_transform/test/opt_out_test.dart
@@ -7,9 +7,8 @@
 import 'dart:async';
 
 import 'package:async/async.dart';
-import 'package:test/test.dart';
-
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 void main() {
   group('null returned from StreamSubscription.cancel', () {
diff --git a/pkgs/stream_transform/test/scan_test.dart b/pkgs/stream_transform/test/scan_test.dart
index e3effb3..aaa099c 100644
--- a/pkgs/stream_transform/test/scan_test.dart
+++ b/pkgs/stream_transform/test/scan_test.dart
@@ -5,9 +5,8 @@
 import 'dart:async';
 
 import 'package:pedantic/pedantic.dart';
-import 'package:test/test.dart';
-
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 void main() {
   group('Scan', () {
diff --git a/pkgs/stream_transform/test/start_with_test.dart b/pkgs/stream_transform/test/start_with_test.dart
index 29241be..71758b5 100644
--- a/pkgs/stream_transform/test/start_with_test.dart
+++ b/pkgs/stream_transform/test/start_with_test.dart
@@ -4,9 +4,8 @@
 
 import 'dart:async';
 
-import 'package:test/test.dart';
-
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 import 'utils.dart';
 
diff --git a/pkgs/stream_transform/test/switch_test.dart b/pkgs/stream_transform/test/switch_test.dart
index b69c8b0..8cae7c4 100644
--- a/pkgs/stream_transform/test/switch_test.dart
+++ b/pkgs/stream_transform/test/switch_test.dart
@@ -4,9 +4,8 @@
 
 import 'dart:async';
 
-import 'package:test/test.dart';
-
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 import 'utils.dart';
 
diff --git a/pkgs/stream_transform/test/take_until_test.dart b/pkgs/stream_transform/test/take_until_test.dart
index 11e906f..7cd30f8 100644
--- a/pkgs/stream_transform/test/take_until_test.dart
+++ b/pkgs/stream_transform/test/take_until_test.dart
@@ -4,9 +4,8 @@
 
 import 'dart:async';
 
-import 'package:test/test.dart';
-
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 import 'utils.dart';
 
diff --git a/pkgs/stream_transform/test/tap_test.dart b/pkgs/stream_transform/test/tap_test.dart
index 79d47b4..a42bdc6 100644
--- a/pkgs/stream_transform/test/tap_test.dart
+++ b/pkgs/stream_transform/test/tap_test.dart
@@ -4,9 +4,8 @@
 
 import 'dart:async';
 
-import 'package:test/test.dart';
-
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 void main() {
   test('calls function for values', () async {
diff --git a/pkgs/stream_transform/test/throttle_test.dart b/pkgs/stream_transform/test/throttle_test.dart
index bbd0cfb..52c79b5 100644
--- a/pkgs/stream_transform/test/throttle_test.dart
+++ b/pkgs/stream_transform/test/throttle_test.dart
@@ -4,8 +4,8 @@
 
 import 'dart:async';
 
-import 'package:test/test.dart';
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 import 'utils.dart';
 
diff --git a/pkgs/stream_transform/test/where_type_test.dart b/pkgs/stream_transform/test/where_type_test.dart
index 2ea4782..03e259a 100644
--- a/pkgs/stream_transform/test/where_type_test.dart
+++ b/pkgs/stream_transform/test/where_type_test.dart
@@ -4,9 +4,8 @@
 
 import 'dart:async';
 
-import 'package:test/test.dart';
-
 import 'package:stream_transform/stream_transform.dart';
+import 'package:test/test.dart';
 
 void main() {
   test('forwards only events that match the type', () async {