Kernel debugging; service tests

runtime/observatory/tests/service/next_through_assign_int_test.dart

Index: runtime/observatory/tests/service/next_through_assign_int_test.dart
diff --git a/runtime/observatory/tests/service/next_through_assign_int_test.dart b/runtime/observatory/tests/service/next_through_assign_int_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..8de50786f56274322556e5fa056978d6b6fcbd46
--- /dev/null
+++ b/runtime/observatory/tests/service/next_through_assign_int_test.dart
@@ -0,0 +1,57 @@
+// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'test_helper.dart';
+import 'service_test_common.dart';
+
+const int LINE_A = 12;
+const String file = "next_through_assign_int_test.dart";
+
+code() {
+  int a;
+  int b;
+  a = b = 42;
+  print(a);
+  print(b);
+  a = 42;
+  print(a);
+  int d = 42;
+  print(d);
+  int e = 41, f, g = 42;
+  print(e);
+  print(f);
+  print(g);
+}
+
+List<String> stops = [];
+List<String> expected = [
+  "$file:${LINE_A+0}:7", // on variable 'a'
+  "$file:${LINE_A+1}:7", // on variable 'b'
+  "$file:${LINE_A+2}:7", // on 'b'
+  "$file:${LINE_A+3}:3", // on call to 'print'
+  "$file:${LINE_A+4}:3", // on call to 'print'
+  "$file:${LINE_A+5}:3", // on 'a'
+  "$file:${LINE_A+6}:3", // on call to 'print'
+  "$file:${LINE_A+7}:9", // on '='
+  "$file:${LINE_A+8}:3", // on call to 'print'
+  "$file:${LINE_A+9}:9", // on first '='
+  "$file:${LINE_A+9}:15", // on 'f'
+  "$file:${LINE_A+9}:20", // on second '='
+  "$file:${LINE_A+10}:3", // on call to 'print'
+  "$file:${LINE_A+11}:3", // on call to 'print'
+  "$file:${LINE_A+12}:3", // on call to 'print'
+  "$file:${LINE_A+13}:1" // on ending '}'
+];
+
+var tests = [
+  hasPausedAtStart,
+  setBreakpointAtLine(LINE_A),
+  runStepThroughProgramRecordingStops(stops),
+  checkRecordedStops(stops, expected)
+];
+
+main(args) {
+  runIsolateTestsSynchronous(args, tests,
+      testeeConcurrent: code, pause_on_start: true, pause_on_exit: true);
+}