1// Copyright 2008 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
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8//     * Redistributions in binary form must reproduce the above
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15//
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17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28// Flags: --expose-debug-as debug
29// Get the Debug object exposed from the debug context global object.
30Debug = debug.Debug
31
32// Simple debug event handler which just counts the number of break points hit.
33var break_point_hit_count;
34
35function listener(event, exec_state, event_data, data) {
36  if (event == Debug.DebugEvent.Break) {
37    break_point_hit_count++;
38  }
39};
40
41// Add the debug event listener.
42Debug.setListener(listener);
43
44// Test functions
45function f() {a=1;b=2;};
46function g() {f();}
47function h() {}
48
49// This test sets several break points at the same place and checks that
50// several break points at the same place only makes one debug break event
51// and that when the last break point is removed no more debug break events
52// occours.
53break_point_hit_count = 0;
54
55// Set a breakpoint in f.
56bp1 = Debug.setBreakPoint(f);
57f();
58assertEquals(1, break_point_hit_count);
59
60// Set another breakpoint in f at the same place.
61bp2 = Debug.setBreakPoint(f);
62f();
63assertEquals(2, break_point_hit_count);
64
65// Remove one of the break points.
66Debug.clearBreakPoint(bp1);
67f();
68assertEquals(3, break_point_hit_count);
69
70// Remove the second break point.
71Debug.clearBreakPoint(bp2);
72f();
73assertEquals(3, break_point_hit_count);
74
75// Perform the same test using function g (this time removing the break points
76// in the another order).
77break_point_hit_count = 0;
78bp1 = Debug.setBreakPoint(g);
79g();
80assertEquals(1, break_point_hit_count);
81bp2 = Debug.setBreakPoint(g);
82g();
83assertEquals(2, break_point_hit_count);
84Debug.clearBreakPoint(bp2);
85g();
86assertEquals(3, break_point_hit_count);
87Debug.clearBreakPoint(bp1);
88g();
89assertEquals(3, break_point_hit_count);
90
91// Finally test with many break points.
92test_count = 100;
93bps = new Array(test_count);
94break_point_hit_count = 0;
95for (var i = 0; i < test_count; i++) {
96  bps[i] = Debug.setBreakPoint(h);
97  h();
98}
99for (var i = 0; i < test_count; i++) {
100  h();
101  Debug.clearBreakPoint(bps[i]);
102}
103assertEquals(test_count * 2, break_point_hit_count);
104h();
105assertEquals(test_count * 2, break_point_hit_count);
106