Additional service tests

runtime/observatory/tests/service/step_through_constructor_calls_test.dart

+// 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 = 12;
+const String file = "step_through_constructor_calls_test.dart";
+
+code() {
+  Foo foo1 = new Foo();
+  print(foo1.x);
+  Foo foo2 = new Foo.named();
+  print(foo2.x);
+  Foo foo3 = const Foo();
+  print(foo3.x);
+  Foo foo4 = const Foo.named();
+  print(foo4.x);
+  Foo foo5 = new Foo.named2(1, 2, 3);
+  print(foo5.x);
+}
+
+class Foo {
+  final int x;
+
+  const Foo() : x = 1;
+
+  const Foo.named() : x = 2;
+
+  const Foo.named2(int aaaaaaaa, int bbbbbbbbbb, int ccccccccccccc)
+      : x = aaaaaaaa + bbbbbbbbbb + ccccccccccccc;
+}
+
+List<String> stops = [];
+List<String> expected = [
+  "$file:${LINE+0}:18", // on 'Foo'
+  "$file:${LINE+15}:12", // on '(' in 'const Foo() : x = 1;'
+  "$file:${LINE+15}:22", // on ';' in same line
+  "$file:${LINE+1}:14", // on 'x'
+  "$file:${LINE+1}:3", // on print
+  "$file:${LINE+2}:18", // on 'Foo'
+  "$file:${LINE+17}:18", // on '(' in 'const Foo.named() : x = 2;'
+  "$file:${LINE+17}:28", // on ';' in same line
+  "$file:${LINE+3}:14", // on 'x'
+  "$file:${LINE+3}:3", // on print
+  "$file:${LINE+4}:12", // on '='
+  "$file:${LINE+5}:14", // on 'x'
+  "$file:${LINE+5}:3", // on print
+  "$file:${LINE+6}:12", // on '='
+  "$file:${LINE+7}:14", // on 'x'
+  "$file:${LINE+7}:3", // on print
+  "$file:${LINE+8}:18", // on 'Foo'
+  "$file:${LINE+19}:54", // on 'ccccccccccccc'
+  "$file:${LINE+20}:22", // on first '+'
+  "$file:${LINE+20}:35", // on second '+'
+  "$file:${LINE+20}:50", // on ';'
+  "$file:${LINE+9}:14", // on 'x'
+  "$file:${LINE+9}:3", // on print
+  "$file:${LINE+10}:1" // on ending '}'
+];
+
+var tests = [
+  hasPausedAtStart,
+  setBreakpointAtLine(LINE),
+  runStepIntoThroughProgramRecordingStops(stops),
+  // removeDuplicates: Source-based debugging stops on the ';'
+  // in the constructors twice. Kernel does not. For now we'll accept that.
+  checkRecordedStops(stops, expected, removeDuplicates: true)
+];
+
+main(args) {
+  runIsolateTestsSynchronous(args, tests,
+      testeeConcurrent: code, pause_on_start: true, pause_on_exit: true);
+}