Add tests for evalutating against activation records.

runtime/observatory/tests/service/evaluate_activation_test.dart

+// Copyright (c) 2015, 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.
+// VMOptions=--compile-all --error_on_bad_type --error_on_bad_override
+
+import 'package:observatory/service_io.dart';
+import 'package:unittest/unittest.dart';
+import 'test_helper.dart';
+import 'dart:async';
+
+import 'dart:math' as math;
+
+breakHere() {}
+
+class C {
+  var instVar = 1;
+  static var classVar = 2;
+
+  method(methodParam) {
+    var methodTemp = 4;
+    [5].forEach((outerParam) {
+      var outerTemp = 6;
+      [7].forEach((innerParam) {
+        var innerTemp = 8;
+        breakHere();
+      });
+    });
+  }
+
+  static method2(methodParam) {
+    var methodTemp = 4;
+    [5].forEach((outerParam) {
+      var outerTemp = 6;
+      [7].forEach((innerParam) {
+        var innerTemp = 8;
+        breakHere();
+      });
+    });
+  }
+
+  method3(methodParam) {
+    var methodTemp = 4;
+    breakHere();
+  }
+
+  static var closureWithReturnedHome;
+  method4(methodParam) {
+    var methodTemp = 4;
+    [5].forEach((outerParam) {
+      var outerTemp = 6;
+      closureWithReturnedHome = (innerParam) {
+        var innerTemp = 8;
+        breakHere();
+      };
+    });
+  }
+}
+
+testMethod(Isolate isolate) async {
+  Library rootLib = await isolate.rootLib.load();
+  ServiceFunction function =
+      rootLib.functions.singleWhere((f) => f.name == 'breakHere');
+  Breakpoint bpt = await isolate.addBreakpointAtEntry(function);
+  print("Breakpoint: $bpt");
+  expect(bpt is Breakpoint, isTrue);  // I.e, not null.
+
+  bool hitBreakpoint = false;
+  var sub = isolate.vm.events.stream.listen((ServiceEvent event) async {
+    print("Event $event");
+    if (event.eventType == ServiceEvent.kPauseBreakpoint) {
+      var n = 1;

[Cutch, 2015/04/10 21:15:25]

frameNum ?

[rmacnak, 2015/04/10 22:36:44]

Done.

+      expect((await isolate.evalFrame(n, '123')).valueAsString,          /// brokeninstance: runtime error

[Cutch, 2015/04/10 21:15:25]

column limits..

[rmacnak, 2015/04/10 22:36:44]

Lots of reshuffling, still doesn't quite fit with multitest.

+             equals('123'));                                             /// brokeninstance: continued
+      expect((await isolate.evalFrame(n, 'this')).clazz.name,            /// missingscope: runtime error
+             equals('C'));                                               /// missingscope: continued
+      expect((await isolate.evalFrame(n, 'instVar')).valueAsString,      /// missingscope: continued
+             equals('1'));                                               /// missingscope: continued
+      expect((await isolate.evalFrame(n, 'classVar')).valueAsString,     /// brokeninstance: continued
+             equals('2'));                                               /// brokeninstance: continued
+      expect((await isolate.evalFrame(n, 'methodParam')).valueAsString,  /// missingscope: continued
+             equals('3'));                                               /// missingscope: continued
+      expect((await isolate.evalFrame(n, 'methodTemp')).valueAsString,   /// missingscope: continued
+             equals('4'));                                               /// missingscope: continued
+      expect((await isolate.evalFrame(n, 'outerParam')).valueAsString,   /// missingscope: continued
+             equals('5'));                                               /// missingscope: continued
+      expect((await isolate.evalFrame(n, 'outerTemp')).valueAsString,    /// missingscope: continued
+             equals('6'));                                               /// missingscope: continued
+      expect((await isolate.evalFrame(n, 'innerParam')).valueAsString,   /// brokeninstance: continued
+             equals('7'));                                               /// brokeninstance: continued
+      expect((await isolate.evalFrame(n, 'innerTemp')).valueAsString,    /// brokeninstance: continued
+             equals('8'));                                               /// brokeninstance: continued
+      expect((await isolate.evalFrame(n, 'math.sqrt')).isClosure,        /// brokeninstance: continued
+             isTrue);                                                    /// brokeninstance: continued
+
+      hitBreakpoint = true;
+      isolate.resume();
+    }
+  });
+
+  var result = await isolate.eval(rootLib, 'new C().method(3);');
+  print("Result $result");
+  expect(hitBreakpoint, isTrue);
+  sub.cancel();  // So the next test gets the events.
+}
+
+testMethod2(Isolate isolate) async {
+  Library rootLib = await isolate.rootLib.load();
+  ServiceFunction function =
+      rootLib.functions.singleWhere((f) => f.name == 'breakHere');
+  Breakpoint bpt = await isolate.addBreakpointAtEntry(function);
+  print("Breakpoint: $bpt");
+  expect(bpt is Breakpoint, isTrue);  // I.e, not null.
+
+  bool hitBreakpoint = false;
+  var sub = isolate.vm.events.stream.listen((ServiceEvent event) async {
+    print("Event $event");
+    if (event.eventType == ServiceEvent.kPauseBreakpoint) {
+      var n = 1;
+      expect((await isolate.evalFrame(n, '123')).valueAsString,
+             equals('123'));
+      expect((await isolate.evalFrame(n, 'this')) is DartError,
+             isTrue);
+      expect((await isolate.evalFrame(n, 'instVar')) is DartError,
+             isTrue);
+      expect((await isolate.evalFrame(n, 'classVar')).valueAsString,
+             equals('2'));
+      expect((await isolate.evalFrame(n, 'methodParam')).valueAsString, /// missingscope: continued
+             equals('3'));                                              /// missingscope: continued
+      expect((await isolate.evalFrame(n, 'methodTemp')).valueAsString,  /// missingscope: continued
+             equals('4'));                                              /// missingscope: continued
+      expect((await isolate.evalFrame(n, 'outerParam')).valueAsString,  /// missingscope: continued
+             equals('5'));                                              /// missingscope: continued
+      expect((await isolate.evalFrame(n, 'outerTemp')).valueAsString,   /// missingscope: continued
+             equals('6'));                                              /// missingscope: continued
+      expect((await isolate.evalFrame(n, 'innerParam')).valueAsString,
+             equals('7'));
+      expect((await isolate.evalFrame(n, 'innerTemp')).valueAsString,
+             equals('8'));
+      expect((await isolate.evalFrame(n, 'math.sqrt')).isClosure,
+             isTrue);
+
+      hitBreakpoint = true;
+      isolate.resume();
+    }
+  });
+
+  var result = await isolate.eval(rootLib, 'C.method2(3);');
+  print("Result $result");
+  expect(hitBreakpoint, isTrue);
+  sub.cancel();  // So the next test gets the events.
+}
+
+testMethod3(Isolate isolate) async {
+  Library rootLib = await isolate.rootLib.load();
+  ServiceFunction function =
+      rootLib.functions.singleWhere((f) => f.name == 'breakHere');
+  Breakpoint bpt = await isolate.addBreakpointAtEntry(function);
+  print("Breakpoint: $bpt");
+  expect(bpt is Breakpoint, isTrue);  // I.e, not null.
+
+  bool hitBreakpoint = false;
+  var sub = isolate.vm.events.stream.listen((ServiceEvent event) async {
+    print("Event $event");
+    if (event.eventType == ServiceEvent.kPauseBreakpoint) {
+      var n = 1;
+      expect((await isolate.evalFrame(n, '123')).valueAsString,
+             equals('123'));
+      expect((await isolate.evalFrame(n, 'this')).clazz.name,
+             equals('C'));
+      expect((await isolate.evalFrame(n, 'instVar')).valueAsString,
+             equals('1'));
+      expect((await isolate.evalFrame(n, 'classVar')).valueAsString,
+             equals('2'));
+      expect((await isolate.evalFrame(n, 'methodParam')).valueAsString,
+             equals('3'));
+      expect((await isolate.evalFrame(n, 'methodTemp')).valueAsString,
+             equals('4'));
+      expect((await isolate.evalFrame(n, 'math.sqrt')).isClosure,
+             isTrue);
+
+      hitBreakpoint = true;
+      isolate.resume();
+    }
+  });
+
+  var result = await isolate.eval(rootLib, 'new C().method3(3);');
+  print("Result $result");
+  expect(hitBreakpoint, isTrue);
+  sub.cancel();  // So the next test gets the events.

[Cutch, 2015/04/10 21:15:25]

these tests should return a completer's future that is completed after resuming
the isolate (e.g. line 182).

[rmacnak, 2015/04/10 22:36:44]

That's too soon because the result of the library eval is still in flight. Moved
the cancellation to before the resume, so there is always at most one event
subscription in flight and it is always cancelled before its test completes (and
so won't resume another test's breakpoint).

+}
+
+
+testMethod4(Isolate isolate) async {
+  Library rootLib = await isolate.rootLib.load();
+  ServiceFunction function =
+      rootLib.functions.singleWhere((f) => f.name == 'breakHere');
+  Breakpoint bpt = await isolate.addBreakpointAtEntry(function);
+  print("Breakpoint: $bpt");
+  expect(bpt is Breakpoint, isTrue);  // I.e, not null.
+
+  bool hitBreakpoint = false;
+  var sub = isolate.vm.events.stream.listen((ServiceEvent event) async {
+    print("Event $event");
+    if (event.eventType == ServiceEvent.kPauseBreakpoint) {
+      var n = 1;
+      expect((await isolate.evalFrame(n, '123')).valueAsString,          /// brokeninstance: runtime error
+             equals('123'));                                             /// brokeninstance: continued
+      expect((await isolate.evalFrame(n, 'this')).clazz.name,            /// missingscope: runtime error
+             equals('C'));                                               /// missingscope: continued
+      expect((await isolate.evalFrame(n, 'instVar')).valueAsString,      /// missingscope: continued
+             equals('1'));                                               /// missingscope: continued
+      expect((await isolate.evalFrame(n, 'classVar')).valueAsString,     /// brokeninstance: continued
+             equals('2'));                                               /// brokeninstance: continued
+      expect((await isolate.evalFrame(n, 'methodParam')).valueAsString,  /// missingscope: continued
+             equals('3'));                                               /// missingscope: continued
+      expect((await isolate.evalFrame(n, 'methodTemp')).valueAsString,   /// missingscope: continued
+             equals('4'));                                               /// missingscope: continued
+      expect((await isolate.evalFrame(n, 'outerParam')).valueAsString,   /// missingscope: continued
+             equals('5'));                                               /// missingscope: continued
+      expect((await isolate.evalFrame(n, 'outerTemp')).valueAsString,    /// missingscope: continued
+             equals('6'));                                               /// missingscope: continued
+      expect((await isolate.evalFrame(n, 'innerParam')).valueAsString,   /// brokeninstance: continued
+             equals('7'));                                               /// brokeninstance: continued
+      expect((await isolate.evalFrame(n, 'innerTemp')).valueAsString,    /// brokeninstance: continued
+             equals('8'));                                               /// brokeninstance: continued
+      expect((await isolate.evalFrame(n, 'math.sqrt')).isClosure,        /// brokeninstance: continued
+             isTrue);                                                    /// brokeninstance: continued
+
+      hitBreakpoint = true;
+      isolate.resume();
+    }
+  });
+
+  var result = await isolate.eval(rootLib,
+      '(){ new C().method4(3); C.closureWithReturnedHome(7); }()');
+  print("Result $result");
+  expect(hitBreakpoint, isTrue);
+  sub.cancel();  // So the next test gets the events.
+}
+
+var tests = [
+  testMethod,
+  testMethod2,
+  testMethod3,
+  testMethod4,
+];
+
+main(args) => runIsolateTests(args, tests);