summaryrefslogtreecommitdiff
path: root/deps/v8/test/mjsunit/debug-negative-break-points.js
blob: 1eb8943a074f31d4103bde9c279b4711622c31dc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Flags: --expose-debug-as debug

var Debug = debug.Debug;
var break_count = 0;
var exception_count = 0;

function assertCount(expected_breaks, expected_exceptions) {
  assertEquals(expected_breaks, break_count);
  assertEquals(expected_exceptions, exception_count);
}

function listener(event, exec_state, event_data, data) {
  if (event == Debug.DebugEvent.Break) {
    break_count++;
  } else if (event == Debug.DebugEvent.Exception) {
    exception_count++;
  }
}

function f(x) {
  debugger;
  return x + 1;
}

function g(x) {
  try {
    throw x;
  } catch (e) {
  }
}

function h(x) {
  var a = undefined;
  try {
    var x = a();
  } catch (e) {
  }
}

Debug.setListener(listener);

assertCount(0, 0);
f(0);
assertCount(1, 0);
g(0);
assertCount(1, 0);

Debug.setBreakOnException();
f(0);
assertCount(2, 0);
g(0);
assertCount(2, 1);

Debug.setBreakPoint(f, 1, 0, "x == 1");
f(1);
assertCount(3, 1);
f(2);
assertCount(3, 1);
f(1);
assertCount(4, 1);

Debug.setBreakPoint(f, 1, 0, "x > 0");
f(1);
assertCount(5, 1);
f(0);
assertCount(5, 1);

Debug.setBreakPoint(g, 2, 0, "1 == 2");
g(1);
assertCount(5, 1);

Debug.setBreakPoint(g, 2, 0, "x == 1");
g(1);
assertCount(6, 2);
g(2);
assertCount(6, 2);
g(1);
assertCount(7, 3);

Debug.setBreakPoint(g, 2, 0, "x > 0");
g(1);
assertCount(8, 4);
g(0);
assertCount(8, 4);

h(0);
assertCount(8, 5);
Debug.setBreakPoint(h, 3, 0, "x > 0");
h(1);
assertCount(9, 6);
h(0);
assertCount(9, 6);

Debug.clearBreakOnException();
Debug.setListener(null);